Files
tilelang/testing/python/language/test_tilelang_language_ceildiv.py
T
Tong WU aca581263a [Feature] Expose multiple CUDA intrinsics (#2473)
* [CUDA] Add T.__fns intrinsic for find-nth-set bit

Expose CUDA __fns in TileLang for direct lookup of the k-th active lane in a 32-bit bitmask, complementing the existing T.__ffs helper.

* Add builtin intrinsics for shared ldst and atomics
2026-07-02 17:29:54 +08:00

108 lines
2.4 KiB
Python

import tilelang.language as T
import tilelang.testing
import torch
@tilelang.jit(out_idx=[-1])
def _ceildiv_kernel(a: int, b: int):
@T.prim_func
def ceildiv_kernel(A: T.Tensor((1,), T.int32)):
with T.Kernel(1, threads=1) as _:
A[0] = T.ceildiv(T.int32(a), T.int32(b))
return ceildiv_kernel
@tilelang.jit(out_idx=[-1])
def _align_up_kernel(a: int, b: int):
@T.prim_func
def align_up_kernel(A: T.Tensor((1,), T.int32)):
with T.Kernel(1, threads=1) as _:
A[0] = T.align_up(T.int32(a), T.int32(b))
return align_up_kernel
def run_ceildiv(a=128, b=32):
kernel = _ceildiv_kernel(a, b)
A = kernel()
print(kernel.get_kernel_source())
print(A)
def test_ceildiv():
run_ceildiv(a=128, b=32)
run_ceildiv(a=1, b=32)
run_ceildiv(a=-1, b=32)
run_ceildiv(a=-2, b=32)
def run_align_up(a=128, b=32):
kernel = _align_up_kernel(a, b)
A = kernel()
print(kernel.get_kernel_source())
print(A)
def test_align_up():
run_align_up(a=128, b=32)
run_align_up(a=1, b=32)
run_align_up(a=-1, b=32)
run_align_up(a=-2, b=32)
@tilelang.jit
def _ceildiv_kernel_dyn(b: int):
@T.prim_func
def ceildiv_kernel(A: T.Tensor((1,), T.int32), a: T.int32):
with T.Kernel(1, threads=1) as _:
A[0] = T.ceildiv(T.int32(a), T.int32(b))
return ceildiv_kernel
@tilelang.jit
def _align_up_kernel_dyn(b: int):
@T.prim_func
def align_up_kernel(A: T.Tensor((1,), T.int32), a: T.int32):
with T.Kernel(1, threads=1) as _:
A[0] = T.align_up(T.int32(a), T.int32(b))
return align_up_kernel
def run_ceildiv_dyn(a=128, b=32):
kernel = _ceildiv_kernel_dyn(b)
A = torch.empty((1,), dtype=torch.int32, device="cuda")
kernel(A, a)
print(kernel.get_kernel_source())
print(A)
@tilelang.testing.requires_cuda
def test_ceildiv_dyn():
run_ceildiv_dyn(a=128, b=32)
run_ceildiv_dyn(a=1, b=32)
run_ceildiv_dyn(a=-1, b=32)
run_ceildiv_dyn(a=-2, b=32)
def run_align_up_dyn(a=128, b=32):
kernel = _align_up_kernel_dyn(b)
A = torch.empty((1,), dtype=torch.int32, device="cuda")
kernel(A, a)
print(kernel.get_kernel_source())
print(A)
@tilelang.testing.requires_cuda
def test_align_up_dyn():
run_align_up_dyn(a=128, b=32)
run_align_up_dyn(a=1, b=32)
run_align_up_dyn(a=-1, b=32)
run_align_up_dyn(a=-2, b=32)
if __name__ == "__main__":
tilelang.testing.main()