musa: disable mudnnMemcpyAsync by default

Signed-off-by: Xiaodong Ye <[email protected]>

Author: yeahdongcn

ggml/CMakeLists.txt

@@ -174,7 +174,8 @@ option(GGML_HIP_GRAPHS                      "ggml: use HIP graph, experimental,
 option(GGML_HIP_NO_VMM                      "ggml: do not try to use HIP VMM"                 ON)
 option(GGML_HIP_ROCWMMA_FATTN               "ggml: enable rocWMMA for FlashAttention"         OFF)
 option(GGML_HIP_FORCE_ROCWMMA_FATTN_GFX12   "ggml: enable rocWMMA FlashAttention on GFX12"    OFF)
-option(GGML_MUSA_GRAPHS                     "ggml: use MUSA graph, experimental"              OFF)
+option(GGML_MUSA_GRAPHS                     "ggml: use MUSA graph, experimental, unstable"    OFF)
+option(GGML_MUSA_MUDNN_COPY                 "ggml: enable MUDNN for accelerated copy"         OFF)
 option(GGML_VULKAN                          "ggml: use Vulkan"                                OFF)
 option(GGML_VULKAN_CHECK_RESULTS            "ggml: run Vulkan op checks"                      OFF)
 option(GGML_VULKAN_DEBUG                    "ggml: enable Vulkan debug output"                OFF)

ggml/src/ggml-cuda/cpy.cu

@@ -1,8 +1,8 @@
 #include "cpy.cuh"
 #include "dequantize.cuh"
-#ifdef GGML_USE_MUSA
+#if defined(GGML_USE_MUSA) && defined(GGML_MUSA_MUDNN_COPY)
 #include "ggml-musa/mudnn.cuh"
-#endif // GGML_USE_MUSA
+#endif // GGML_USE_MUSA && GGML_MUSA_MUDNN_COPY
 
 typedef void (*cpy_kernel_t)(const char * cx, char * cdst);
 
@@ -600,7 +600,7 @@ void ggml_cuda_cpy(ggml_backend_cuda_context & ctx, const ggml_tensor * src0, gg
 #endif
     if (src0->type == src1->type && ggml_is_contiguous(src0) && ggml_is_contiguous(src1)) {
         GGML_ASSERT(ggml_nbytes(src0) == ggml_nbytes(src1));
-#ifdef GGML_USE_MUSA
+#if defined(GGML_USE_MUSA) && defined(GGML_MUSA_MUDNN_COPY)
         if (src0->type == GGML_TYPE_F32 || src0->type == GGML_TYPE_F16) {
             CUDA_CHECK(mudnnMemcpyAsync(ctx, src1, src0));
         } else

ggml/src/ggml-musa/CMakeLists.txt

@@ -34,8 +34,12 @@ if (MUSAToolkit_FOUND)
     list(APPEND GGML_SOURCES_MUSA ${SRCS})
     file(GLOB   SRCS "../ggml-cuda/template-instances/mmq*.cu")
     list(APPEND GGML_SOURCES_MUSA ${SRCS})
-    file(GLOB   SRCS "../ggml-musa/*.cu")
-    list(APPEND GGML_SOURCES_MUSA ${SRCS})
+
+    if (GGML_MUSA_MUDNN_COPY)
+        file(GLOB   SRCS "../ggml-musa/*.cu")
+        list(APPEND GGML_SOURCES_MUSA ${SRCS})
+        add_compile_definitions(GGML_MUSA_MUDNN_COPY)
+    endif()
 
     if (GGML_CUDA_FA_ALL_QUANTS)
         file(GLOB   SRCS "../ggml-cuda/template-instances/fattn-vec*.cu")
@@ -101,10 +105,16 @@ if (MUSAToolkit_FOUND)
     endif()
 
     if (GGML_STATIC)
-        # TODO: mudnn has not provided static libraries yet
         target_link_libraries(ggml-musa PRIVATE MUSA::musart_static MUSA::mublas_static)
+        # TODO: mudnn has not provided static libraries yet
+        # if (GGML_MUSA_MUDNN_COPY)
+        #     target_link_libraries(ggml-musa PRIVATE mudnn_static)
+        # endif()
     else()
-        target_link_libraries(ggml-musa PRIVATE MUSA::musart MUSA::mublas mudnn)
+        target_link_libraries(ggml-musa PRIVATE MUSA::musart MUSA::mublas)
+        if (GGML_MUSA_MUDNN_COPY)
+            target_link_libraries(ggml-musa PRIVATE mudnn)
+        endif()
     endif()
 
     if (GGML_CUDA_NO_VMM)