Chenguang Li c1c354e44c CANN: Refactor ND to NZ workspace to be per-device (#15763) ...

* CANN:Refactor ND to NZ workspace to be per-device in Ascend backend

- Replaced the previous single global ND→NZ workspace with a per-device
  cache using unordered_map keyed by device ID.
- Functions `release_nz_workspace`, `relloc_nz_workspace`, and
  `get_nz_workspace` now manage workspace independently for each device,
  preventing memory conflicts in multi-device / pipeline parallel scenarios.
- This change fixes potential precision issues caused by workspace
  overwrites when multiple devices perform ND→NZ conversions concurrently.

Co-authored-by: hipudding <huafengchun@gmail.com>

* refactor

Signed-off-by: noemotiovon <757486878@qq.com>

* rename

Signed-off-by: noemotiovon <757486878@qq.com>

* fix review comments

Signed-off-by: noemotiovon <757486878@qq.com>

---------

Signed-off-by: noemotiovon <757486878@qq.com>
Co-authored-by: hipudding <huafengchun@gmail.com>

2025-09-04 20:20:14 +08:00

..

cmake

ggml: Skip backend library linking code when GGML_BACKEND_DL=ON (#15094)

2025-08-07 13:45:41 +02:00

include

ggml: add ops for WAN video model (cuda && cpu) (#15669)

2025-09-04 10:38:49 +02:00

src

CANN: Refactor ND to NZ workspace to be per-device (#15763)

2025-09-04 20:20:14 +08:00

.gitignore

vulkan : cmake integration (#8119)

2024-07-13 18:12:39 +02:00

CMakeLists.txt

ggml-cpu : optimize RVV kernels (#15720)

2025-09-03 16:16:21 +08:00