Created
September 10, 2025 09:04
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CuTe DSL pass list from python and convert to vector for kernel
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| from typing import List | |
| import cutlass | |
| import cutlass.cute as cute | |
| from cutlass.cute.runtime import from_dlpack | |
| @cute.kernel | |
| def kernel_use_vec_as_arg(vec, res: cute.Tensor): | |
| res.store(vec) | |
| for i in cutlass.range(10): | |
| cute.printf("vec[%d]: %d", i, vec[i]) | |
| # cute.print_tensor(vec) | |
| @cute.jit | |
| def pass_list_as_vector(xs: List[cutlass.Int32], res: cute.Tensor): | |
| vec = cute.make_fragment(10, dtype=cutlass.Int32) | |
| for i, x in enumerate(xs): | |
| vec[i] = x | |
| kernel_use_vec_as_arg(vec.load(), res).launch(grid=[1, 1, 1], block=[1, 1, 1]) | |
| import torch | |
| res = torch.zeros(10, dtype=torch.int32, device="cuda") | |
| pass_list_as_vector([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], from_dlpack(res)) | |
| torch.cuda.synchronize() | |
| print(res) |
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