| /********************************************************* |
| * * |
| * * Licensed to the Apache Software Foundation (ASF) under one |
| * * or more contributor license agreements. See the NOTICE file |
| * * distributed with this work for additional information |
| * * regarding copyright ownership. The ASF licenses this file |
| * * to you 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 |
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| * * Unless required by applicable law or agreed to in writing, |
| * * software distributed under the License is distributed on an |
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| * ************************************************************/ |
| #ifndef SINGA_UTILS_MKLDNN_UTILS_H_ |
| #define SINGA_UTILS_MKLDNN_UTILS_H_ |
| |
| namespace singa { |
| |
| using namespace dnnl; |
| |
| inline dnnl::memory::format_tag get_dnnl_format_tag(const Tensor &x) { |
| memory::format_tag format_tag_; |
| switch (x.nDim()) { |
| case 1: { |
| format_tag_ = memory::format_tag::a; |
| break; |
| } |
| case 2: { |
| format_tag_ = memory::format_tag::ab; |
| break; |
| } |
| case 3: { |
| format_tag_ = memory::format_tag::abc; |
| break; |
| } |
| case 4: { |
| format_tag_ = memory::format_tag::abcd; |
| break; |
| } |
| default: { |
| LOG(FATAL) << x.nDim() << " dim is not supported"; |
| } |
| } |
| return format_tag_; |
| } |
| } // namespace singa |
| #endif // SINGA_UTILS_MKLDNN_UTILS_H_ |