Files
tilelang/testing/python/language/test_tilelang_language_reduce_sum.py
T
Lei Wang 6c737768ef [Language] Support accumulative T.reduce_sum (#436)
* [Enhancement] Update reduce operations to support clear option in sum and abs sum (#436)

* Modified reduce_sum and reduce_absmax functions to include a clear parameter, allowing for accumulation on existing values.
* Updated ReduceOp::Lower method to handle initialization and buffer duplication based on the clear flag for sum and abs sum operations.
* Added new tests for reduce_sum and reduce_max with clear functionality to ensure correctness in various scenarios.
* Enhanced documentation for reduce functions to clarify the behavior of the clear parameter.

* lint fix

* Update tensor type annotations in test_tilelang_transform_annotate_device_regions.py from Buffer to Tensor

* Update tensor type in reduce sum tests from float16 to float32 for improved precision
2025-04-26 20:53:12 +08:00

103 lines
2.6 KiB
Python

from tilelang import tvm as tvm
import tilelang.testing
import tilelang as tl
tilelang.testing.set_random_seed()
def reduce_sum_test(M, N, dtype="float16"):
import tilelang.language as T
@T.prim_func
def main(
A: T.Tensor((M, N), dtype),
B: T.Tensor((M,), dtype),
):
with T.Kernel(1) as _:
A_local = T.alloc_fragment((M, N), dtype)
B_local = T.alloc_fragment((M,), dtype)
# Copy input to local
T.copy(A, A_local)
# Perform reduce_sum operation
T.reduce_sum(A_local, B_local, dim=1)
# Copy result back
T.copy(B_local, B)
return main
def run_reduce_sum(M, N, dtype="float16"):
program = reduce_sum_test(M, N, dtype)
jit_kernel = tl.compile(program, out_idx=-1)
profiler = jit_kernel.get_profiler()
def ref_program(A):
return A.sum(dim=1)
profiler.assert_allclose(ref_program, atol=1e-2, rtol=1e-2)
def test_reduce_sum():
# Test different sizes
run_reduce_sum(256, 256)
run_reduce_sum(512, 128)
run_reduce_sum(128, 512)
# Test different dtypes
run_reduce_sum(256, 256, "float32")
run_reduce_sum(256, 256, "float16")
def reduce_sum_test_clear(M, N, dtype="float16"):
import tilelang.language as T
@T.prim_func
def main(
A: T.Tensor((M, N), dtype),
B: T.Tensor((M,), dtype),
):
with T.Kernel(1, threads=32) as _:
A_local = T.alloc_fragment((M, N), dtype)
B_local = T.alloc_fragment((M,), dtype)
T.copy(A, A_local)
T.fill(B_local, 1)
T.reduce_sum(A_local, B_local, dim=1, clear=False)
T.copy(B_local, B)
return main
def run_reduce_sum_clear(M, N, dtype="float16"):
program = reduce_sum_test_clear(M, N, dtype)
jit_kernel = tl.compile(
program,
out_idx=-1,
pass_configs={
"tl.disable_tma_lower": True,
"tl.disable_warp_specialized": True,
})
print(jit_kernel.get_kernel_source())
def ref_program(A):
return A.sum(dim=1) + 1
import torch
dummp_A = torch.randn((M, N), dtype=getattr(torch, dtype)).cuda()
ref_out = ref_program(dummp_A)
tl_out = jit_kernel(dummp_A)
print(tl_out)
print(ref_out)
torch.testing.assert_close(tl_out, ref_out, atol=1e-2, rtol=1e-2)
def test_reduce_sum_clear():
run_reduce_sum_clear(256, 256, "float32")
run_reduce_sum_clear(512, 128, "float32")
run_reduce_sum_clear(128, 512, "float32")
if __name__ == "__main__":
tilelang.testing.main()