- declare mkl malloc functions in ngraph

- provides hook to reseat mkl malloc function to custom malloc allocator

src/ngraph/runtime/cpu/CMakeLists.txt

@@ -23,6 +23,7 @@ set(SRC
     cpu_executor.cpp
     cpu_external_function.cpp
     cpu_kernels.cpp
+    cpu_mkl_allocator.cpp
     cpu_layout_descriptor.cpp
     cpu_op_annotations.cpp
     cpu_tensor_view_wrapper.cpp

src/ngraph/runtime/cpu/cpu_mkl_allocator.cpp

+//*****************************************************************************
+// Copyright 2017-2019 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//*****************************************************************************
+
+#include "ngraph/runtime/cpu/cpu_mkl_allocator.hpp"

src/ngraph/runtime/cpu/cpu_mkl_allocator.hpp

+//*****************************************************************************
+// Copyright 2017-2019 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//*****************************************************************************
+
+#pragma once
+
+#include <cstddef>
+#include <cstdint>
+
+namespace mkl
+{
+    extern "C" {
+    typedef void* (*i_malloc_t)(size_t size);
+    typedef void* (*i_calloc_t)(size_t nmemb, size_t size);
+    typedef void* (*i_realloc_t)(void* ptr, size_t size);
+    typedef void (*i_free_t)(void* ptr);
+
+    extern i_malloc_t i_malloc;
+    extern i_calloc_t i_calloc;
+    extern i_realloc_t i_realloc;
+    extern i_free_t i_free;
+    }
+}