use Accelerate BLAS implementation on Mac

cmake/cblas.cmake

@@ -15,9 +15,11 @@
 # Find the CBlas and lapack libraries
 #
 # It will search MKLML, OpenBlas, reference-cblas, extern-openblas in order.
+# On APPLE, accelerate framework (apple's blas implementation) will be
+# used, if applicable.
 #
 # If any cblas implementation found, the following variable will be set.
-#    CBLAS_PROVIDER  # one of MKLML, OPENBLAS, REFERENCE
+#    CBLAS_PROVIDER  # one of MKLML, ACCELERATE, OPENBLAS, REFERENCE
 #    CBLAS_INC_DIR   # the include directory for cblas.
 #    CBLAS_LIBS      # a list of libraries should be linked by paddle.
 #                    # Each library should be full path to object file.
@@ -45,6 +47,24 @@ if(WITH_MKLML)
                  "(include: ${CBLAS_INC_DIR}, library: ${CBLAS_LIBRARIES})")
 endif()
 
+## find accelerate on apple
+if(APPLE AND NOT DEFINED CBLAS_PROVIDER)
+  find_library(ACCELERATE_FRAMEWORK Accelerate)
+  if(ACCELERATE_FRAMEWORK)
+    message(STATUS "Accelerate framework found " "${ACCELERATE_FRAMEWORK}")
+
+    set(CBLAS_PROVIDER ACCELERATE)
+    # no need to setup include dir if it's accelerate
+    # set(CBLAS_INC_DIR "")
+    set(CBLAS_LIBRARIES ${ACCELERATE_FRAMEWORK})
+
+    add_definitions(-DPADDLE_USE_ACCELERATE)
+    add_definitions(-DLAPACK_FOUND)
+  else()
+    message(WARNING "Accelerate framework not found")
+  endif()
+endif()
+
 ## Then find openblas.
 if(NOT DEFINED CBLAS_PROVIDER)
   set(OPENBLAS_ROOT

paddle/fluid/platform/cpu_helper.cc

@@ -22,6 +22,8 @@ limitations under the License. */
 
 #ifdef PADDLE_USE_OPENBLAS
 #include <cblas.h>
+#elif PADDLE_USE_ACCELERATE
+#include <Accelerate/Accelerate.h>
 #endif
 
 namespace paddle {
@@ -45,6 +47,9 @@ void SetNumThreads(int num_threads) {
 #elif defined(PADDLE_USE_REFERENCE_CBLAS)
   // cblas not support multi-thread
   return;
+#elif defined(PADDLE_USE_ACCELERATE)
+  // not sure about apple's blas
+  return;
 #else
   PADDLE_THROW(platform::errors::Unimplemented(
       "This library (except OPENBLAS, MKLML) is not supported yet, so the"

paddle/phi/kernels/funcs/blas/blas.h

@@ -26,6 +26,9 @@
 
 #if defined(PADDLE_USE_OPENBLAS) || defined(PADDLE_USE_REFERENCE_CBLAS)
 #include <cblas.h>
+#elif defined(PADDLE_USE_ACCELERATE)
+#include <Accelerate/Accelerate.h>
+#define CBLAS_LAYOUT CBLAS_ORDER
 #endif
 
 namespace phi {

paddle/phi/kernels/funcs/math_function.cc

@@ -21,6 +21,8 @@ limitations under the License. */
 
 #ifdef PADDLE_USE_OPENBLAS
 #include <cblas.h>
+#elif PADDLE_USE_ACCELERATE
+#include <Accelerate/Accelerate.h>
 #endif
 
 #include <memory>

test/CMakeLists.txt

@@ -245,6 +245,10 @@ if(${len} GREATER_EQUAL 1)
           ${test_name}
           "-Wl,-rpath,$<TARGET_FILE_DIR:${paddle_lib}> -Wl,-rpath,$<TARGET_FILE_DIR:phi> -Wl,-rpath,$<TARGET_FILE_DIR:pir> -Wl,-rpath,$<TARGET_FILE_DIR:common>"
         )
+        if(ACCELERATE_FRAMEWORK)
+          target_link_libraries(${test_name} ${ACCELERATE_FRAMEWORK})
+          message(STATUS "linking to accelerate blas library in ${test_name}")
+        endif()
       endif()
       if(NOT ((NOT WITH_PYTHON) AND ON_INFER))
         target_link_libraries(${test_name} ${PYTHON_LIBRARIES})