[dask] DaskLGBMClassifier very slow and not using CPU

Using @jameslamb 's Dockerfile to set up dask+lightgbm:
wget https://raw.githubusercontent.com/jameslamb/talks/main/recent-developments-in-lightgbm/Dockerfile
sudo docker build -t dasklgbm .
sudo docker run --rm  -p 8787:8787 dasklgbm
sudo docker ps -a
sudo docker exec -ti ... /bin/bash
pip3 install -U dask-ml
ipython

Then run this code:
import pandas as pd
from sklearn import metrics

from dask.distributed import Client, LocalCluster
import dask.dataframe as dd
import dask.array as da
from dask_ml import preprocessing

from lightgbm.dask import DaskLGBMClassifier

cluster = LocalCluster(n_workers=16, threads_per_worker=1)
client = Client(cluster)

d_train = pd.read_csv("https://s3.amazonaws.com/benchm-ml--main/train-1m.csv")
d_test = pd.read_csv("https://s3.amazonaws.com/benchm-ml--main/test.csv")
d_all = pd.concat([d_train,d_test])

dx_all = dd.from_pandas(d_all, npartitions=16)

vars_cat = ["Month","DayofMonth","DayOfWeek","UniqueCarrier", "Origin", "Dest"]
vars_num = ["DepTime","Distance"]
for col in vars_cat:
  dx_all[col] = preprocessing.LabelEncoder().fit_transform(dx_all[col])

X_all = dx_all[vars_cat+vars_num].to_dask_array(lengths=True)
y_all = da.where((dx_all["dep_delayed_15min"]=="Y").to_dask_array(lengths=True),1,0)

X_train = X_all[0:d_train.shape[0],]
y_train = y_all[0:d_train.shape[0]]
X_test = X_all[d_train.shape[0]:(d_train.shape[0]+d_test.shape[0]),]
y_test = y_all[d_train.shape[0]:(d_train.shape[0]+d_test.shape[0])]

X_train.persist()
y_train.persist()

client.has_what()

md = DaskLGBMClassifier(num_leaves=512, learning_rate=0.1, n_estimators=100, tree_learner="data", silent=False)
%time md.fit( client=client, X=X_train, y=y_train)

md_loc = md.to_local()
X_test_loc = X_test.compute()

y_pred = md_loc.predict_proba(X_test)[:,1]
print(metrics.roc_auc_score(y_test, y_pred))

It runs very slowly (>30minutes vs regular lightgbm in <4 seconds) and also not using CPUs while running

For comparison regular lightgbm:
import pandas as pd
import numpy as np
from sklearn import preprocessing
from sklearn import metrics

import lightgbm as lgb

d_train = pd.read_csv("https://s3.amazonaws.com/benchm-ml--main/train-1m.csv")
d_test = pd.read_csv("https://s3.amazonaws.com/benchm-ml--main/test.csv")

d_all = pd.concat([d_train,d_test])

vars_cat = ["Month","DayofMonth","DayOfWeek","UniqueCarrier", "Origin", "Dest"]
vars_num = ["DepTime","Distance"]
for col in vars_cat:
  d_all[col] = preprocessing.LabelEncoder().fit_transform(d_all[col])

X_all = d_all[vars_cat+vars_num].to_numpy()
y_all = np.where(d_all["dep_delayed_15min"]=="Y",1,0)

X_train = X_all[0:d_train.shape[0],]
y_train = y_all[0:d_train.shape[0]]
X_test = X_all[d_train.shape[0]:(d_train.shape[0]+d_test.shape[0]),]
y_test = y_all[d_train.shape[0]:(d_train.shape[0]+d_test.shape[0])]

md = lgb.LGBMClassifier(num_leaves=512, learning_rate=0.1, n_estimators=100)
%time md.fit(X_train, y_train)

y_pred = md.predict_proba(X_test)[:,1]
print(metrics.roc_auc_score(y_test, y_pred))

runs in 3.7 seconds.

changed to silent=False. Logs:
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[LightGBM] [Info] Local rank: 12, total number of machines: 15
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[LightGBM] [Info] Local rank: 4, total number of machines: 15
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
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[LightGBM] [Info] Connected to rank 0
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[LightGBM] [Info] Local rank: 13, total number of machines: 15
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
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[LightGBM] [Info] Local rank: 0, total number of machines: 15
[LightGBM] [Info] Local rank: 11, total number of machines: 15
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Info] Connected to rank 12
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[LightGBM] [Info] Local rank: 6, total number of machines: 15
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[LightGBM] [Info] Local rank: 7, total number of machines: 15
[LightGBM] [Info] Local rank: 8, total number of machines: 15
[LightGBM] [Info] Local rank: 1, total number of machines: 15
[LightGBM] [Info] Local rank: 10, total number of machines: 15
[LightGBM] [Info] Local rank: 9, total number of machines: 15
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.001486 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing col-wise multi-threading, the overhead of testing was 0.005704 seconds.
You can set `force_col_wise=true` to remove the overhead.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Number of data points in the train set: 37500, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.191920 -> initscore=-1.437582
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.193862 -> initscore=-1.425110
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002517 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002793 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002791 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002818 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing col-wise multi-threading, the overhead of testing was 0.009279 seconds.
You can set `force_col_wise=true` to remove the overhead.
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002877 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002738 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002781 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002871 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002866 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002874 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.003143 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Warning] Auto-choosing col-wise multi-threading, the overhead of testing was 0.010175 seconds.
You can set `force_col_wise=true` to remove the overhead.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.195593 -> initscore=-1.414071
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.190735 -> initscore=-1.445244
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.192684 -> initscore=-1.432666
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.192858 -> initscore=-1.431544
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.204902 -> initscore=-1.355935
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.194909 -> initscore=-1.418422
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.191811 -> initscore=-1.438286
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.204945 -> initscore=-1.355667
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.190385 -> initscore=-1.447508
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.203404 -> initscore=-1.365156
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.192858 -> initscore=-1.431544
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.193382 -> initscore=-1.428184
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.195113 -> initscore=-1.417125
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270

changed to silent=False. Logs:
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12400...
[LightGBM] [Info] Binding port 12400 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Connecting to rank 14 failed, waiting for 200 milliseconds
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12413...
[LightGBM] [Info] Binding port 12413 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 14 failed, waiting for 200 milliseconds
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12406...
[LightGBM] [Info] Binding port 12406 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 14 failed, waiting for 200 milliseconds
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12405...
[LightGBM] [Info] Binding port 12405 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 14 failed, waiting for 200 milliseconds
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Info] Trying to bind port 12401...
[LightGBM] [Info] Binding port 12401 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Connecting to rank 14 failed, waiting for 200 milliseconds
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12407...
[LightGBM] [Info] Binding port 12407 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 14 failed, waiting for 200 milliseconds
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12409...
[LightGBM] [Info] Binding port 12409 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 14 failed, waiting for 200 milliseconds
[LightGBM] [Info] Trying to bind port 12402...
[LightGBM] [Info] Binding port 12402 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Info] Trying to bind port 12408...
[LightGBM] [Info] Binding port 12408 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 14 failed, waiting for 200 milliseconds
[LightGBM] [Warning] Connecting to rank 14 failed, waiting for 200 milliseconds
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12410...
[LightGBM] [Info] Binding port 12410 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12414...
[LightGBM] [Info] Binding port 12414 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 12 failed, waiting for 200 milliseconds
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12411...
[LightGBM] [Info] Binding port 12411 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 12 failed, waiting for 200 milliseconds
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12403...
[LightGBM] [Info] Binding port 12403 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 12 failed, waiting for 200 milliseconds
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12404...
[LightGBM] [Info] Binding port 12404 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 12 failed, waiting for 200 milliseconds
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12412...
[LightGBM] [Info] Binding port 12412 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Info] Connected to rank 1
[LightGBM] [Info] Connected to rank 2
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 3
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 4
[LightGBM] [Info] Connected to rank 5
[LightGBM] [Info] Connected to rank 6
[LightGBM] [Info] Connected to rank 7
[LightGBM] [Info] Connected to rank 8
[LightGBM] [Info] Connected to rank 9
[LightGBM] [Info] Connected to rank 10
[LightGBM] [Info] Connected to rank 11
[LightGBM] [Info] Connected to rank 12
[LightGBM] [Info] Connected to rank 13
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Local rank: 14, total number of machines: 15
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 1
[LightGBM] [Info] Connected to rank 3
[LightGBM] [Info] Connected to rank 4
[LightGBM] [Info] Connected to rank 5
[LightGBM] [Info] Connected to rank 6
[LightGBM] [Info] Connected to rank 7
[LightGBM] [Info] Connected to rank 8
[LightGBM] [Info] Connected to rank 9
[LightGBM] [Info] Connected to rank 10
[LightGBM] [Info] Connected to rank 11
[LightGBM] [Info] Connected to rank 12
[LightGBM] [Info] Connected to rank 13
[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Local rank: 2, total number of machines: 15
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 1
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 2
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 3
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 4
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 5
[LightGBM] [Info] Connected to rank 6
[LightGBM] [Info] Connected to rank 7
[LightGBM] [Info] Connected to rank 8
[LightGBM] [Info] Connected to rank 9
[LightGBM] [Info] Connected to rank 10
[LightGBM] [Info] Connected to rank 11
[LightGBM] [Info] Connected to rank 13
[LightGBM] [Info] Connected to rank 14
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Info] Connected to rank 1
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 2
[LightGBM] [Info] Connected to rank 3
[LightGBM] [Info] Connected to rank 4
[LightGBM] [Info] Connected to rank 6
[LightGBM] [Info] Connected to rank 7
[LightGBM] [Info] Connected to rank 8
[LightGBM] [Info] Connected to rank 9
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 10
[LightGBM] [Info] Connected to rank 11
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Info] Connected to rank 12
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 1
[LightGBM] [Info] Connected to rank 13
[LightGBM] [Info] Connected to rank 2
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Connected to rank 4
[LightGBM] [Info] Connected to rank 5
[LightGBM] [Info] Connected to rank 6
[LightGBM] [Info] Connected to rank 7
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 8
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 9
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Local rank: 12, total number of machines: 15
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Local rank: 5, total number of machines: 15
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
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[LightGBM] [Info] Local rank: 3, total number of machines: 15
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[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Local rank: 4, total number of machines: 15
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Info] Connected to rank 1
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[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Local rank: 13, total number of machines: 15
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 1
[LightGBM] [Info] Connected to rank 2
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Info] Connected to rank 6
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Info] Connected to rank 1
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[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Local rank: 0, total number of machines: 15
[LightGBM] [Info] Local rank: 11, total number of machines: 15
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Info] Connected to rank 1
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 1
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 11
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[LightGBM] [Info] Connected to rank 0
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Info] Connected to rank 9
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 10
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[LightGBM] [Info] Connected to rank 13
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 14
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Info] Connected to rank 3
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[LightGBM] [Info] Connected to rank 0
[LightGBM] [Info] Connected to rank 0
[LightGBM] [Info] Connected to rank 12
[LightGBM] [Info] Connected to rank 1
[LightGBM] [Info] Connected to rank 1
[LightGBM] [Info] Connected to rank 13
[LightGBM] [Info] Connected to rank 2
[LightGBM] [Info] Connected to rank 2
[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Connected to rank 3
[LightGBM] [Info] Connected to rank 4
[LightGBM] [Info] Connected to rank 5
[LightGBM] [Info] Local rank: 6, total number of machines: 15
[LightGBM] [Info] Connected to rank 6
[LightGBM] [Info] Connected to rank 3
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[LightGBM] [Info] Connected to rank 6
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[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Connected to rank 8
[LightGBM] [Info] Connected to rank 10
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[LightGBM] [Info] Connected to rank 13
[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Local rank: 7, total number of machines: 15
[LightGBM] [Info] Local rank: 8, total number of machines: 15
[LightGBM] [Info] Local rank: 1, total number of machines: 15
[LightGBM] [Info] Local rank: 10, total number of machines: 15
[LightGBM] [Info] Local rank: 9, total number of machines: 15
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.001486 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing col-wise multi-threading, the overhead of testing was 0.005704 seconds.
You can set `force_col_wise=true` to remove the overhead.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Number of data points in the train set: 37500, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.191920 -> initscore=-1.437582
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.193862 -> initscore=-1.425110
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002517 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002793 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002791 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002818 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing col-wise multi-threading, the overhead of testing was 0.009279 seconds.
You can set `force_col_wise=true` to remove the overhead.
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002877 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002738 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002781 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002871 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002866 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002874 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Total Bins 948
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.003143 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Warning] Auto-choosing col-wise multi-threading, the overhead of testing was 0.010175 seconds.
You can set `force_col_wise=true` to remove the overhead.
[LightGBM] [Info] Total Bins 948
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.195593 -> initscore=-1.414071
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.190735 -> initscore=-1.445244
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.192684 -> initscore=-1.432666
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.192858 -> initscore=-1.431544
[LightGBM] [Info] Number of data points in the train set: 68750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.204902 -> initscore=-1.355935
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.194909 -> initscore=-1.418422
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.191811 -> initscore=-1.438286
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.204945 -> initscore=-1.355667
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.190385 -> initscore=-1.447508
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.203404 -> initscore=-1.365156
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.192858 -> initscore=-1.431544
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.193382 -> initscore=-1.428184
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.195113 -> initscore=-1.417125
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270
[LightGBM] [Info] Start training from score -1.416270

Also, the accuracy is really low:
In [33]: print(metrics.roc_auc_score(y_test, y_pred))
0.5597049176648616

should be around 0.76 (plain lightgbm).

Also, the accuracy is really low:
In [33]: print(metrics.roc_auc_score(y_test, y_pred))
0.5597049176648616

should be around 0.76 (plain lightgbm).

with n_workers=1, threads_per_worker=16, npartitions=16
Wall time: 4.93 s
0.8214364141421683

with n_workers=1, threads_per_worker=16, npartitions=16
Wall time: 4.93 s
0.8214364141421683

n_workers=4, threads_per_worker=4, npartitions=16
Wall time: 10.9 s
AUC: 0.6643150017188256

In [30]: %time md.fit( client=client, X=X_train, y=y_train)
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12403...
[LightGBM] [Info] Binding port 12403 succeeded
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12402...
[LightGBM] [Info] Binding port 12402 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12400...
[LightGBM] [Info] Binding port 12400 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Connecting to rank 1 failed, waiting for 200 milliseconds
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Trying to bind port 12401...
[LightGBM] [Info] Binding port 12401 succeeded
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Listening...
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] num_threads is set=4, n_jobs=-1 will be ignored. Current value: num_threads=4
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[LightGBM] [Warning] num_threads is set=4, n_jobs=-1 will be ignored. Current value: num_threads=4
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[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.001885 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 955
[LightGBM] [Info] Number of data points in the train set: 175000, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.192451 -> initscore=-1.434159
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.003799 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 955
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.003713 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 955
[LightGBM] [Info] Number of data points in the train set: 275000, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 343750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.195389 -> initscore=-1.415366
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002179 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 955
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.196230 -> initscore=-1.410027
[LightGBM] [Info] Number of data points in the train set: 206250, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.196514 -> initscore=-1.408226
[LightGBM] [Info] Start training from score -1.416945
[LightGBM] [Info] Start training from score -1.416945
[LightGBM] [Info] Start training from score -1.416945
[LightGBM] [Info] Start training from score -1.416945
[LightGBM] [Info] Finished linking network in 4.872368 seconds
[LightGBM] [Info] Finished linking network in 5.884385 seconds
[LightGBM] [Info] Finished linking network in 5.500947 seconds
[LightGBM] [Info] Finished linking network in 5.102584 seconds
CPU times: user 1 s, sys: 227 ms, total: 1.23 s
Wall time: 10.9 s

n_workers=4, threads_per_worker=4, npartitions=16
Wall time: 10.9 s
AUC: 0.6643150017188256

In [30]: %time md.fit( client=client, X=X_train, y=y_train)
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[LightGBM] [Info] Local rank: 0, total number of machines: 4
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[LightGBM] [Info] Local rank: 2, total number of machines: 4
[LightGBM] [Warning] num_threads is set=4, n_jobs=-1 will be ignored. Current value: num_threads=4
[LightGBM] [Warning] num_threads is set=4, n_jobs=-1 will be ignored. Current value: num_threads=4
[LightGBM] [Warning] num_threads is set=4, n_jobs=-1 will be ignored. Current value: num_threads=4
[LightGBM] [Warning] num_threads is set=4, n_jobs=-1 will be ignored. Current value: num_threads=4
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[LightGBM] [Warning] num_threads is set=4, n_jobs=-1 will be ignored. Current value: num_threads=4
[LightGBM] [Warning] num_threads is set=4, n_jobs=-1 will be ignored. Current value: num_threads=4
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Info] Number of positive: 195396, number of negative: 804604
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.001885 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 955
[LightGBM] [Info] Number of data points in the train set: 175000, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.192451 -> initscore=-1.434159
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.003799 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 955
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.003713 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 955
[LightGBM] [Info] Number of data points in the train set: 275000, number of used features: 8
[LightGBM] [Info] Number of data points in the train set: 343750, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.195389 -> initscore=-1.415366
[LightGBM] [Warning] Auto-choosing row-wise multi-threading, the overhead of testing was 0.002179 seconds.
You can set `force_row_wise=true` to remove the overhead.
And if memory is not enough, you can set `force_col_wise=true`.
[LightGBM] [Info] Total Bins 955
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.196230 -> initscore=-1.410027
[LightGBM] [Info] Number of data points in the train set: 206250, number of used features: 8
[LightGBM] [Info] [binary:BoostFromScore]: pavg=0.196514 -> initscore=-1.408226
[LightGBM] [Info] Start training from score -1.416945
[LightGBM] [Info] Start training from score -1.416945
[LightGBM] [Info] Start training from score -1.416945
[LightGBM] [Info] Start training from score -1.416945
[LightGBM] [Info] Finished linking network in 4.872368 seconds
[LightGBM] [Info] Finished linking network in 5.884385 seconds
[LightGBM] [Info] Finished linking network in 5.500947 seconds
[LightGBM] [Info] Finished linking network in 5.102584 seconds
CPU times: user 1 s, sys: 227 ms, total: 1.23 s
Wall time: 10.9 s

@jameslamb In the example above there might be some issues (possible data leakage from train to test due to Dask partitions   because of the the way I lump train and test together to create a consistent label encoding and then I partition the lumped data) - a better way to do this is to do the integer encoding outside of Dask and read train and test separately in Dask:

Plain lightgbm (no Dask):
import pandas as pd
import numpy as np
from sklearn import metrics

import lightgbm as lgb

d_train = pd.read_csv("https://raw.githubusercontent.com/szilard/benchm-ml--data/master/int_enc/train-1m-intenc.csv")
d_test = pd.read_csv("https://raw.githubusercontent.com/szilard/benchm-ml--data/master/int_enc/test-1m-intenc.csv")

X_train = d_train.iloc[:, :-1].to_numpy()
y_train = d_train.iloc[:,-1:].to_numpy()
X_test = d_test.iloc[:, :-1].to_numpy()
y_test = d_test.iloc[:,-1:].to_numpy()

md = lgb.LGBMClassifier(num_leaves=512, learning_rate=0.1, n_estimators=100)
%time md.fit(X_train, y_train)

y_pred = md.predict_proba(X_test)[:,1]
print(metrics.roc_auc_score(y_test, y_pred))

results:

With dask:
import pandas as pd
from sklearn import metrics

from dask.distributed import Client, LocalCluster
import dask.dataframe as dd

from lightgbm.dask import DaskLGBMClassifier

cluster = LocalCluster(n_workers=16, threads_per_worker=1)
client = Client(cluster)

d_train = pd.read_csv("https://raw.githubusercontent.com/szilard/benchm-ml--data/master/int_enc/train-1m-intenc.csv")
d_test = pd.read_csv("https://raw.githubusercontent.com/szilard/benchm-ml--data/master/int_enc/test-1m-intenc.csv")

dx_train = dd.from_pandas(d_train, npartitions=16)
dx_test = dd.from_pandas(d_test, npartitions=1)

X_train = dx_train.iloc[:, :-1].to_dask_array(lengths=True)
y_train = dx_train.iloc[:,-1:].to_dask_array(lengths=True)
X_test = dx_test.iloc[:, :-1].to_dask_array(lengths=True)
y_test = dx_test.iloc[:,-1:].to_dask_array(lengths=True)

X_train.persist()
y_train.persist()

client.has_what()

md = DaskLGBMClassifier(num_leaves=512, learning_rate=0.1, n_estimators=100, tree_learner="data", silent=False)
%time md.fit( client=client, X=X_train, y=y_train)

md_loc = md.to_local()
X_test_loc = X_test.compute()

y_pred = md_loc.predict_proba(X_test)[:,1]
print(metrics.roc_auc_score(y_test, y_pred))

Results:

It is still slow and CPU % is low (so same as before), but it's a better way to look at when we compare AUCs.
Logs from Dask run:
In [22]: %time md.fit( client=client, X=X_train, y=y_train)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
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/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
/opt/conda/lib/python3.8/site-packages/sklearn/utils/validation.py:63: DataConversionWarning: A column-vector y was passed when a 1d array was expected. Please change the shape of y to (n_samples, ), for example using ravel().
  return f(*args, **kwargs)
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 1
[LightGBM] [Info] Connected to rank 2
[LightGBM] [Info] Connected to rank 3
[LightGBM] [Info] Connected to rank 4
[LightGBM] [Info] Connected to rank 5
[LightGBM] [Info] Connected to rank 6
[LightGBM] [Info] Connected to rank 7
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 8
[LightGBM] [Info] Connected to rank 9
[LightGBM] [Info] Connected to rank 10
[LightGBM] [Info] Connected to rank 11
[LightGBM] [Info] Connected to rank 12
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Info] Connected to rank 13
[LightGBM] [Info] Connected to rank 14
[LightGBM] [Info] Connected to rank 15
[LightGBM] [Info] Local rank: 0, total number of machines: 16
[LightGBM] [Warning] num_threads is set=1, n_jobs=-1 will be ignored. Current value: num_threads=1
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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[LightGBM] [Warning] Set TCP_NODELAY failed
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