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Merged
shwina merged 3 commits into from
Dec 19, 2025
Merged

[cuda.compute]: Fixes and updates to benchmarks #6999

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6e24435
Move algorithm cache to a central registry
shwina Dec 11, 2025
d8f3efe
Update select benchmark
shwina Dec 17, 2025
587939e
Update merge_sort benchmark
shwina Dec 17, 2025
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20 changes: 4 additions & 16 deletions python/cuda_cccl/benchmarks/compute/bench_merge_sort.py
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Original file line number Diff line number Diff line change
Expand Up @@ -91,10 +91,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_merge_sort, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -115,10 +112,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_merge_sort, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -141,10 +135,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_merge_sort, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -167,7 +158,4 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_merge_sort, run)
else:
fixture(run)
fixture(run)
20 changes: 4 additions & 16 deletions python/cuda_cccl/benchmarks/compute/bench_reduce.py
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Original file line number Diff line number Diff line change
Expand Up @@ -91,10 +91,7 @@ def run():
reduce_pointer(input_array, build_only=(bench_fixture == "compile_benchmark"))

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_reduce_into, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -109,10 +106,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_reduce_into, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -127,10 +121,7 @@ def run():
reduce_struct(input_array, build_only=(bench_fixture == "compile_benchmark"))

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_reduce_into, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -141,10 +132,7 @@ def run():
reduce_pointer_custom_op(input_array, build_only=False)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_reduce_into, run)
else:
fixture(run)
fixture(run)


def bench_reduce_pointer_single_phase(benchmark, size):
Expand Down
24 changes: 3 additions & 21 deletions python/cuda_cccl/benchmarks/compute/bench_scan.py
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Original file line number Diff line number Diff line change
Expand Up @@ -108,13 +108,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
if scan_type == "exclusive":
fixture(cuda.compute.make_exclusive_scan, run)
else:
fixture(cuda.compute.make_inclusive_scan, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("scan_type", ["exclusive", "inclusive"])
Expand Down Expand Up @@ -145,13 +139,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
if scan_type == "exclusive":
fixture(cuda.compute.make_exclusive_scan, run)
else:
fixture(cuda.compute.make_inclusive_scan, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("scan_type", ["exclusive", "inclusive"])
Expand All @@ -171,13 +159,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
if scan_type == "exclusive":
fixture(cuda.compute.make_exclusive_scan, run)
else:
fixture(cuda.compute.make_inclusive_scan, run)
else:
fixture(run)
fixture(run)


def scan_pointer_single_phase(input_array, build_only, scan_type):
Expand Down
127 changes: 127 additions & 0 deletions python/cuda_cccl/benchmarks/compute/bench_select.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,127 @@
import cupy as cp
import numpy as np
import pytest

import cuda.compute
from cuda.compute import (
CacheModifiedInputIterator,
gpu_struct,
)


def select_pointer(inp, out, num_selected, build_only):
size = len(inp)

def even_op(x):
return x % 2 == 0

selector = cuda.compute.make_select(inp, out, num_selected, even_op)
if not build_only:
temp_bytes = selector(None, inp, out, num_selected, size)
temp_storage = cp.empty(temp_bytes, dtype=np.uint8)
selector(temp_storage, inp, out, num_selected, size)

cp.cuda.runtime.deviceSynchronize()


def select_iterator(size, d_in, out, num_selected, build_only):
d_in_iter = CacheModifiedInputIterator(d_in, modifier="stream")

def less_than_50(x):
return x < 50

selector = cuda.compute.make_select(d_in_iter, out, num_selected, less_than_50)
if not build_only:
temp_bytes = selector(None, d_in_iter, out, num_selected, size)
temp_storage = cp.empty(temp_bytes, dtype=np.uint8)
selector(temp_storage, d_in_iter, out, num_selected, size)

cp.cuda.runtime.deviceSynchronize()


@gpu_struct
class Point:
x: np.int32
y: np.int32


def select_struct(inp, out, num_selected, build_only):
size = len(inp)

def in_first_quadrant(p: Point) -> np.uint8:
return (p.x > 50) and (p.y > 50)

selector = cuda.compute.make_select(inp, out, num_selected, in_first_quadrant)
if not build_only:
temp_bytes = selector(None, inp, out, num_selected, size)
temp_storage = cp.empty(temp_bytes, dtype=np.uint8)
selector(temp_storage, inp, out, num_selected, size)

cp.cuda.runtime.deviceSynchronize()


def select_stateful(inp, out, num_selected, threshold_state, build_only):
size = len(inp)

def threshold_select(x):
return x > threshold_state[0]

selector = cuda.compute.make_select(inp, out, num_selected, threshold_select)
if not build_only:
temp_bytes = selector(None, inp, out, num_selected, size)
temp_storage = cp.empty(temp_bytes, dtype=np.uint8)
selector(temp_storage, inp, out, num_selected, size)

cp.cuda.runtime.deviceSynchronize()


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
def bench_select_pointer(bench_fixture, request, size):
actual_size = 100 if bench_fixture == "compile_benchmark" else size
inp = cp.random.randint(0, 100, actual_size, dtype=np.int32)
out = cp.empty_like(inp)
num_selected = cp.empty(2, dtype=np.uint64)

def run():
select_pointer(
inp, out, num_selected, build_only=(bench_fixture == "compile_benchmark")
)

fixture = request.getfixturevalue(bench_fixture)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
def bench_select_iterator(bench_fixture, request, size):
actual_size = 100 if bench_fixture == "compile_benchmark" else size
d_in = cp.random.randint(0, 100, actual_size, dtype=np.int32)
out = cp.empty(actual_size, dtype=np.int32)
num_selected = cp.empty(2, dtype=np.uint64)

def run():
select_iterator(
actual_size,
d_in,
out,
num_selected,
build_only=(bench_fixture == "compile_benchmark"),
)

fixture = request.getfixturevalue(bench_fixture)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
def bench_select_struct(bench_fixture, request, size):
actual_size = 100 if bench_fixture == "compile_benchmark" else size
inp = cp.random.randint(0, 100, (actual_size, 2), dtype=np.int32).view(Point.dtype)
out = cp.empty_like(inp)
num_selected = cp.empty(2, dtype=np.uint64)

def run():
select_struct(
inp, out, num_selected, build_only=(bench_fixture == "compile_benchmark")
)

fixture = request.getfixturevalue(bench_fixture)
fixture(run)
15 changes: 3 additions & 12 deletions python/cuda_cccl/benchmarks/compute/bench_three_way_partition.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -167,10 +167,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_three_way_partition, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -192,10 +189,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_three_way_partition, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -218,10 +212,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_three_way_partition, run)
else:
fixture(run)
fixture(run)


def three_way_partition_pointer_single_phase(inp):
Expand Down
35 changes: 7 additions & 28 deletions python/cuda_cccl/benchmarks/compute/bench_transform.py
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -117,10 +117,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_unary_transform, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -135,10 +132,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_unary_transform, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -154,10 +148,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_unary_transform, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -174,10 +165,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_binary_transform, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -192,10 +180,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_binary_transform, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -212,10 +197,7 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_binary_transform, run)
else:
fixture(run)
fixture(run)


@pytest.mark.parametrize("bench_fixture", ["compile_benchmark", "benchmark"])
Expand All @@ -231,7 +213,4 @@ def run():
)

fixture = request.getfixturevalue(bench_fixture)
if bench_fixture == "compile_benchmark":
fixture(cuda.compute.make_binary_transform, run)
else:
fixture(run)
fixture(run)
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