Files
cutlass/operators/test/integration/test_gemm_dynamic.py
2026-07-06 22:05:33 -04:00

129 lines
4.5 KiB
Python

# Copyright (c) 2025 - 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: BSD-3-Clause
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# modification, are permitted provided that the following conditions are met:
# 1. Redistributions of source code must retain the above copyright notice, this
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# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
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import logging
from pprint import pformat
import pytest
import torch
import cutlass.operators as ops
from cutlass.operators.metadata.design.tile_scheduler import (
CLCDynamicPersistentTileSchedulerMetadata,
StaticPersistentTileSchedulerMetadata,
)
from cutlass.operators.utils.device import (
device_or_env_supports,
device_or_env_target_sm,
)
from test_utils import assert_close_with_reference_conversion
torch.manual_seed(2025)
logger = logging.getLogger(__name__)
@pytest.mark.parametrize(
"M, N, K, L",
[
(256, 512, 1024, 1),
(256, 512, 64, 1),
(256, 512, 64, 2),
],
)
@pytest.mark.skipif(
not device_or_env_supports("100f"),
reason="Currently requires compiling for an arch in sm_100f family",
)
def test_gemm_persistent_tile_schedulers(
M: int,
N: int,
K: int,
L: int,
fixture_toggle_tvm_ffi,
):
"""Test static and CLC persistent tile schedulers for dense GEMM."""
ab_dtype = torch.float16
c_dtype = torch.float16
accumulator_type = torch.float32
A = torch.randint(-1, 2, (L, M, K), device="cuda", dtype=ab_dtype)
B = torch.randint(-1, 2, (L, K, N), device="cuda", dtype=ab_dtype)
D = torch.empty((L, M, N), device="cuda", dtype=c_dtype)
reference = A @ B
args = ops.GemmArguments(A, B, D, accumulator_type)
def clc_dynamic_persistent_filter(metadata):
scheduler = getattr(metadata.design, "tile_scheduler", None)
if scheduler and isinstance(
scheduler, CLCDynamicPersistentTileSchedulerMetadata
):
return True
return False
def static_persistent_filter(metadata):
scheduler = getattr(metadata.design, "tile_scheduler", None)
if scheduler and isinstance(scheduler, StaticPersistentTileSchedulerMetadata):
return True
return False
# Test one CLC-based tile scheduler kernel
operators = ops.get_operators(
args,
metadata_filter=clc_dynamic_persistent_filter,
target_sm=device_or_env_target_sm(),
)
assert len(operators) > 0
operator = operators[0]
logger.debug(f"Picked operator: {operator.metadata.operator_name}")
logger.debug(f"Operator metadata:\n{pformat(operator.metadata)}")
operator.run(args)
assert_close_with_reference_conversion(D, reference, D.dtype)
# Reinitialize output tensor to ensure independent validation
D = torch.empty((L, M, N), device="cuda", dtype=c_dtype)
args = ops.GemmArguments(A, B, D, accumulator_type)
operators = ops.get_operators(
args,
metadata_filter=static_persistent_filter,
target_sm=device_or_env_target_sm(),
)
assert len(operators) > 0
operator = operators[0]
logger.debug(f"Picked operator: {operator.metadata.operator_name}")
logger.debug(f"Operator metadata:\n{pformat(operator.metadata)}")
operator.run(args)
assert_close_with_reference_conversion(D, reference, D.dtype)