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[dask] Fix potential error in demo. (#8079)

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* Use dask_cudf instead.
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Jiaming Yuan 2022-07-15 18:42:29 +08:00 committed by GitHub
parent 647d3844dd
commit 8fccc3c4ad
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1 changed files with 6 additions and 5 deletions
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11
demo/dask/gpu_training.py
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@ -3,12 +3,13 @@ Example of training with Dask on GPU
==================================== ====================================
""" """
from dask_cuda import LocalCUDACluster from dask_cuda import LocalCUDACluster
from dask.distributed import Client import dask_cudf
from dask.distributed import Client, wait
from dask import array as da from dask import array as da
from dask import dataframe as dd
import xgboost as xgb import xgboost as xgb
from xgboost import dask as dxgb from xgboost import dask as dxgb
from xgboost.dask import DaskDMatrix from xgboost.dask import DaskDMatrix
import cupy as cp
import argparse import argparse
@ -45,11 +46,11 @@ def using_quantile_device_dmatrix(client: Client, X, y):
''' '''
# Input must be on GPU for `DaskDeviceQuantileDMatrix`. # Input must be on GPU for `DaskDeviceQuantileDMatrix`.
X = X.map_blocks(cp.array) X = dask_cudf.from_dask_dataframe(dd.from_dask_array(X))
y = y.map_blocks(cp.array) y = dask_cudf.from_dask_dataframe(dd.from_dask_array(y))
# `DaskDeviceQuantileDMatrix` is used instead of `DaskDMatrix`, be careful # `DaskDeviceQuantileDMatrix` is used instead of `DaskDMatrix`, be careful
# that it can not be used for anything else than training. # that it can not be used for anything else other than training.
dtrain = dxgb.DaskDeviceQuantileDMatrix(client, X, y) dtrain = dxgb.DaskDeviceQuantileDMatrix(client, X, y)
output = xgb.dask.train(client, output = xgb.dask.train(client,
{'verbosity': 2, {'verbosity': 2,