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musa: enable fp16 mma (all) and cublas on qy2 (#13842)

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* musa: enable fp16 mma (all) and cublas on qy2

Signed-off-by: Xiaodong Ye <xiaodong.ye@mthreads.com>

* Update ggml/src/ggml-cuda/ggml-cuda.cu

Co-authored-by: Johannes Gäßler <johannesg@5d6.de>

* Address review comments

Signed-off-by: Xiaodong Ye <xiaodong.ye@mthreads.com>

* Address review comments

Signed-off-by: Xiaodong Ye <xiaodong.ye@mthreads.com>

* musa: disable MUL_MAT_ID (q2_k × f32) due to precision issues

Signed-off-by: Xiaodong Ye <xiaodong.ye@mthreads.com>

---------

Signed-off-by: Xiaodong Ye <xiaodong.ye@mthreads.com>
Co-authored-by: Johannes Gäßler <johannesg@5d6.de>
This commit is contained in:
R0CKSTAR 2025-06-26 12:11:59 +08:00 • committed by GitHub
parent 60ef23d6c1
commit 716301d1b0
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GPG key ID: B5690EEEBB952194
4 changed files with 34 additions and 24 deletions
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25
ggml/src/ggml-cuda/ggml-cuda.cu
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@ -1227,9 +1227,12 @@ static void ggml_cuda_op_mul_mat_cublas(
const int cc = ggml_cuda_info().devices[id].cc;
const bool supports_bf16 = GGML_CUDA_CC_IS_NVIDIA(cc) || GGML_CUDA_CC_IS_AMD(cc) ||
(GGML_CUDA_CC_IS_MTHREADS(cc) && cc >= GGML_CUDA_CC_QY2);
const bool use_fp16 = (src0->type == GGML_TYPE_F16 || ggml_is_quantized(src0->type)) && ggml_is_contiguous(src0) && row_diff == src0->ne[1] && dst->op_params[0] == GGML_PREC_DEFAULT;
if (src0->type == GGML_TYPE_BF16 && ggml_is_contiguous(src0) && row_diff == src0->ne[1]) {
if (supports_bf16 && src0->type == GGML_TYPE_BF16 && ggml_is_contiguous(src0) && row_diff == src0->ne[1]) {
ggml_cuda_pool_alloc<nv_bfloat16> src1_as_bf16(ctx.pool(id));
if (src1->type != GGML_TYPE_BF16) {
const to_bf16_cuda_t to_bf16_cuda = ggml_get_to_bf16_cuda(src1->type);
@ -1257,7 +1260,7 @@ static void ggml_cuda_op_mul_mat_cublas(
const to_fp32_cuda_t to_fp32_cuda = ggml_get_to_fp32_cuda(GGML_TYPE_BF16);
to_fp32_cuda(dst_bf16.get(), dst_dd_i, row_diff*src1_ncols, stream);
} else if (((GGML_CUDA_CC_IS_NVIDIA(cc) && cc >= GGML_CUDA_CC_VOLTA) || GGML_CUDA_CC_IS_AMD(cc)) && use_fp16) {
} else if (fast_fp16_hardware_available(cc) && use_fp16) {
// convert src0 and src1 to fp16, multiply as fp16, convert dst to fp32
ggml_cuda_pool_alloc<half> src0_as_f16(ctx.pool(id));
if (src0->type != GGML_TYPE_F16) {
@ -3061,9 +3064,16 @@ static bool ggml_backend_cuda_device_supports_op(ggml_backend_dev_t dev, const g
return false;
}
#ifdef GGML_USE_MUSA
if (b->type == GGML_TYPE_F16 && b->ne[2]*b->ne[3] > 1 &&
!ggml_is_transposed(a) && !ggml_is_transposed(b)) {
return false;
const int cc = ggml_cuda_info().devices[dev_ctx->device].cc;
if (b->ne[2]*b->ne[3] > 1 && !ggml_is_transposed(a) && !ggml_is_transposed(b)) {
if (GGML_CUDA_CC_IS_QY1(cc) && op->op == GGML_OP_MUL_MAT &&
a->type == GGML_TYPE_F16 && b->type == GGML_TYPE_F16) {
return false;
}
if (GGML_CUDA_CC_IS_QY2(cc) && op->op == GGML_OP_MUL_MAT_ID &&
a->type == GGML_TYPE_Q2_K && b->type == GGML_TYPE_F32) {
return false;
}
}
#endif // GGML_USE_MUSA
switch (a->type) {
@ -3090,11 +3100,6 @@ static bool ggml_backend_cuda_device_supports_op(ggml_backend_dev_t dev, const g
case GGML_TYPE_IQ4_NL:
case GGML_TYPE_IQ4_XS:
case GGML_TYPE_BF16:
#ifdef GGML_USE_MUSA
if (a->type == GGML_TYPE_Q3_K) {
return false;
}
#endif // GGML_USE_MUSA
return true;
default:
return false;