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Fix bf16 support issues #2238

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@jianyuh jianyuh commented Dec 28, 2023

Summary:
For bf16 related cuda code, we have the following macro to distinguish between v100 vs. a100 (pre-a100 cuda/NV GPU doesn't support BF16):

#if !(                                                  \
    ((defined(CUDA_VERSION) && CUDA_VERSION < 11000) || \
     (defined(__CUDA_ARCH__) && (__CUDA_ARCH__ < 800))))

macro.

For AMD GPU (rocm), it will lead to always false. However, on the MI250 / MI300 GPU we have in house, they have BF16 supports. We re-enable BF16 for RoCM related usages.

Reviewed By: jiawenliu64

Differential Revision: D52438898

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This pull request was exported from Phabricator. Differential Revision: D52438898

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Re-export?

Summary:

- Switch to hip related TARGETS (w/ _hip suffix) when AMD GPU build is used.
- Add "supports_python_dlopen = True," to support dlopen on related deps.
- Add missing deps like `"//deeplearning/fbgemm/fbgemm_gpu:split_table_batched_embeddings_hip",`

Reviewed By: q10, zoranzhao

Differential Revision: D52435932
Summary:

For bf16 related cuda code, we have the following macro to distinguish between v100 vs. a100 (pre-a100 cuda/NV GPU doesn't support BF16):
```
#if !(                                                  \
    ((defined(CUDA_VERSION) && CUDA_VERSION < 11000) || \
     (defined(__CUDA_ARCH__) && (__CUDA_ARCH__ < 800))))
```
macro.

For AMD GPU (rocm), it will lead to always false. However, on the MI250 / MI300 GPU we have in house, they have BF16 supports. We re-enable BF16 for RoCM related usages.

Reviewed By: houseroad, jiawenliu64

Differential Revision: D52438898
jianyuh added a commit to jianyuh/FBGEMM that referenced this pull request Dec 28, 2023
Summary:

For bf16 related cuda code, we have the following macro to distinguish between v100 vs. a100 (pre-a100 cuda/NV GPU doesn't support BF16):
```
#if !(                                                  \
    ((defined(CUDA_VERSION) && CUDA_VERSION < 11000) || \
     (defined(__CUDA_ARCH__) && (__CUDA_ARCH__ < 800))))
```
macro.

For AMD GPU (rocm), it will lead to always false. However, on the MI250 / MI300 GPU we have in house, they have BF16 supports. We re-enable BF16 for RoCM related usages.

Reviewed By: houseroad, jiawenliu64

Differential Revision: D52438898
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This pull request was exported from Phabricator. Differential Revision: D52438898

jianyuh added a commit to jianyuh/FBGEMM that referenced this pull request Dec 28, 2023
Summary:

For bf16 related cuda code, we have the following macro to distinguish between v100 vs. a100 (pre-a100 cuda/NV GPU doesn't support BF16):
```
#if !(                                                  \
    ((defined(CUDA_VERSION) && CUDA_VERSION < 11000) || \
     (defined(__CUDA_ARCH__) && (__CUDA_ARCH__ < 800))))
```
macro.

For AMD GPU (rocm), it will lead to always false. However, on the MI250 / MI300 GPU we have in house, they have BF16 supports. We re-enable BF16 for RoCM related usages.

Reviewed By: houseroad, jiawenliu64

Differential Revision: D52438898
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This pull request was exported from Phabricator. Differential Revision: D52438898

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This pull request was exported from Phabricator. Differential Revision: D52438898

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This pull request has been merged in 9cd944a.

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3 participants