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[rocm-libraries] ROCm/rocm-libraries#4812 (commit bb5a4dd)

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[CK] Use as_posix() instead of str() for paths in
 fmha_fwd_appendkv.py (#4812)

## Motivation

This is causing a failing PR for Windows:
https://github.com/ROCm/TheRock/pull/3382
```

[composable_kernel configure] -- Jenga kernel files to be generated: B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_d128_fp16_batch_b128x128x32x128x32x128_r4x1x1_r4x1x1_w32x32x16_w32x32x16_qr_async_vr_psddv_nlogits_nbias_nmask_nskip_nsquant_ntrload.cpp;B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_d128_fp16_batch_b128x128x32x128x32x128_r4x1x1_r4x1x1_w32x32x16_w32x32x16_qr_async_vr_psskddv_nlogits_nbias_nmask_nskip_nsquant_ntrload.cpp;B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_d128_fp16_batch_b128x128x32x128x32x128_r4x1x1_r4x1x1_w32x32x16_w32x32x16_qr_async_vr_psddv_nlogits_nbias_mask_nskip_nsquant_ntrload.cpp;B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_d128_fp16_batch_b128x128x32x128x32x128_r4x1x1_r4x1x1_w32x32x16_w32x32x16_qr_async_vr_psskddv_nlogits_nbias_mask_nskip_nsquant_ntrload.cpp;B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_d128_bf16_batch_b128x128x32x128x32x128_r4x1x1_r4x1x1_w32x32x16_w32x32x16_qr_async_vr_psddv_nlogits_nbias_nmask_nskip_nsquant_ntrload.cpp;B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_d128_bf16_batch_b128x128x32x128x32x128_r4x1x1_r4x1x1_w32x32x16_w32x32x16_qr_async_vr_psskddv_nlogits_nbias_nmask_nskip_nsquant_ntrload.cpp;B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_d128_bf16_batch_b128x128x32x128x32x128_r4x1x1_r4x1x1_w32x32x16_w32x32x16_qr_async_vr_psddv_nlogits_nbias_mask_nskip_nsquant_ntrload.cpp;B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_d128_bf16_batch_b128x128x32x128x32x128_r4x1x1_r4x1x1_w32x32x16_w32x32x16_qr_async_vr_psskddv_nlogits_nbias_mask_nskip_nsquant_ntrload.cpp;B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_api.cpp
[composable_kernel configure] CMake Error at example/ck_tile/50_sparse_attn/CMakeLists.txt:61 (add_library):
[composable_kernel configure]   Syntax error in cmake code when parsing string
[composable_kernel configure]
[composable_kernel configure]     B:\build\ml-libs\composable_kernel\build\example\ck_tile\50_sparse_attn\fmha_jenga_fwd_d128_fp16_batch_b128x128x32x128x32x128_r4x1x1_r4x1x1_w32x32x16_w32x32x16_qr_async_vr_psddv_nlogits_nbias_nmask_nskip_nsquant_ntrload.cpp
[composable_kernel configure]
[composable_kernel configure]   Invalid character escape '\b'.
```

## Technical Details

The file:
[fmha_fwd_appendkv.py](https://github.com/ROCm/rocm-libraries/compare/users/brockhargreaves-amd/ck/fix-windows-cmake-path-problem?expand=1#diff-bef22bf9ba21eb93c725493ecc7edcb6f2a8f0a9a173dcfca6bda7a9f4eced78)
writes a bunch of paths to a text file which is later parsed by cmake.
When passing a pathlib.Path to str(), str() converts to a native path,
in this case / to \\ on Windows which confuses cmake. In this case we
need to write paths with forward slashes and then pass those onward to
cmake.

## Test Plan

1. Ensure this doesn't impact existing CI.
2. Ensure compilation of Windows pass locally.

## Test Result

1. Passes existing CI
2. This fixes the compilation error locally.

## Submission Checklist

- [ x ] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
This commit is contained in:
Brock Hargreaves
2026-02-25 16:13:56 +00:00
committed by assistant-librarian[bot]
parent abf13bdec1
commit c90a363589
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
example/ck_tile/01_fmha/codegen/ops/fmha_fwd_appendkv.py
View File

@@ -515,5 +515,5 @@ def list_blobs(
targets, kernel_filter, receipt, mask_impl, optdim_list
)
for kernel in kernels:
f.write(str(file_path.parent / GEN_DIR / kernel.filename) + "\n")
f.write(str(file_path.parent / GEN_DIR / FMHA_FWD_APPENDKV_API_FILENAME) + "\n")
f.write((file_path.parent / GEN_DIR / kernel.filename).as_posix() + "\n")
f.write((file_path.parent / GEN_DIR / FMHA_FWD_APPENDKV_API_FILENAME).as_posix() + "\n")