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-rw-r--r--thirdparty/oidn/mkl-dnn/src/common/scratchpad.cpp112
1 files changed, 0 insertions, 112 deletions
diff --git a/thirdparty/oidn/mkl-dnn/src/common/scratchpad.cpp b/thirdparty/oidn/mkl-dnn/src/common/scratchpad.cpp
deleted file mode 100644
index 6bc14fc72a..0000000000
--- a/thirdparty/oidn/mkl-dnn/src/common/scratchpad.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-/*******************************************************************************
-* Copyright 2017-2018 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 "mkldnn_thread.hpp"
-#include "utils.hpp"
-
-#include "scratchpad.hpp"
-
-namespace mkldnn {
-namespace impl {
-
-/* Allocating memory buffers on a page boundary to reduce TLB/page misses */
-const size_t page_size = 2097152;
-
-/*
- Implementation of the scratchpad_t interface that is compatible with
- a concurrent execution
-*/
-struct concurent_scratchpad_t : public scratchpad_t {
- concurent_scratchpad_t(size_t size) {
- size_ = size;
- scratchpad_ = (char *) malloc(size, page_size);
- assert(scratchpad_ != nullptr);
- }
-
- ~concurent_scratchpad_t() {
- free(scratchpad_);
- }
-
- virtual char *get() const {
- return scratchpad_;
- }
-
-private:
- char *scratchpad_;
- size_t size_;
-};
-
-/*
- Implementation of the scratchpad_t interface that uses a global
- scratchpad
-*/
-
-struct global_scratchpad_t : public scratchpad_t {
- global_scratchpad_t(size_t size) {
- if (size > size_) {
- if (scratchpad_ != nullptr) free(scratchpad_);
- size_ = size;
- scratchpad_ = (char *) malloc(size, page_size);
- assert(scratchpad_ != nullptr);
- }
- reference_count_++;
- }
-
- ~global_scratchpad_t() {
- reference_count_--;
- if (reference_count_ == 0) {
- free(scratchpad_);
- scratchpad_ = nullptr;
- size_ = 0;
- }
- }
-
- virtual char *get() const {
- return scratchpad_;
- }
-
-private:
- /*
- Using thread-local here is unnecessary and even buggy! All threads
- actually share the same scratchpad, which is created and queried only
- on the main thread. If the scratchpad is queried on some thread other
- than the one it was created on (e.g. the application calls the API from
- multiple threads), thread-local causes a segfault because the scratchpad
- is uninitialized on the current thread.
- */
- /*thread_local*/ static char *scratchpad_;
- /*thread_local*/ static size_t size_;
- /*thread_local*/ static unsigned int reference_count_;
-};
-
-/*thread_local*/ char *global_scratchpad_t::scratchpad_ = nullptr;
-/*thread_local*/ size_t global_scratchpad_t::size_ = 0;
-/*thread_local*/ unsigned int global_scratchpad_t::reference_count_ = 0;
-
-
-/*
- Scratchpad creation routine
-*/
-scratchpad_t *create_scratchpad(size_t size) {
-#ifndef MKLDNN_ENABLE_CONCURRENT_EXEC
- return new global_scratchpad_t(size);
-#else
- return new concurent_scratchpad_t(size);
-#endif
-}
-
-}
-}