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Add option to reset memory resource in PDSH benchmarks #20432

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Add option to reset memory resource in PDSH benchmarks #20432

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5eb659a
Add option to reset memory resource in PDSH
TomAugspurger Oct 30, 2025
d0550fc
Merge remote-tracking branch 'upstream/main' into tom/pdsh-reset-mr
TomAugspurger Oct 31, 2025
e3e44b8
fixup
TomAugspurger Oct 31, 2025
bb52f7f
Add single-cluster note
TomAugspurger Oct 31, 2025
8d2d232
Merge remote-tracking branch 'upstream/main' into tom/pdsh-reset-mr
TomAugspurger Nov 3, 2025
c549c0f
fixup
TomAugspurger Nov 3, 2025
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14 changes: 14 additions & 0 deletions python/cudf_polars/cudf_polars/experimental/benchmarks/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -838,6 +838,15 @@ def parse_args(
default=False,
help="Enable statistics planning.",
)
parser.add_argument(
"--reset-memory-resource",
action=argparse.BooleanOptionalAction,
default=False,
help=(
"Reset the memory resource between each iteration. "
"Note: this only affects the single-node cluster."
),
)

parsed_args = parser.parse_args(args)

Expand Down Expand Up @@ -928,6 +937,11 @@ def run_polars(
if args.print_results:
print(result)

if run_config.executor != "cpu" and args.reset_memory_resource:
import cudf_polars.callback

cudf_polars.callback.default_memory_resource.cache_clear()

print(f"Query {q_id} - Iteration {i} finished in {record.duration:0.4f}s")
records[q_id].append(record)

Expand Down
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