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Fix prefetch-dataset hang on GPU #207

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Fix prefetch-dataset hang on GPU #207

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4 changes: 2 additions & 2 deletions sklbench/runner/implementation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@

import argparse
import json
from multiprocessing import Pool
from multiprocessing import get_context
from typing import Dict, List, Tuple, Union

from psutil import cpu_count
Expand Down Expand Up @@ -102,7 +102,7 @@ def run_benchmarks(args: argparse.Namespace) -> int:
logger.debug(f"Unique dataset names to load:\n{list(dataset_cases.keys())}")
n_proc = min([16, cpu_count(), n_datasets])
logger.info(f"Prefetching {n_datasets} datasets with {n_proc} processes")
with Pool(n_proc) as pool:
with get_context("spawn").Pool(n_proc) as pool:
pool.map(load_data_with_cleanup, dataset_cases.values())

# run bench_cases
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