| /** |
| * 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 |
| * |
| * 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 "singa/core/device.h" |
| |
| namespace singa { |
| |
| std::shared_ptr<Device> defaultDevice = std::make_shared<CppCPU>(); |
| |
| CppCPU::CppCPU() : Device(-1, 1) { |
| lang_ = kCpp; |
| #ifdef USE_DNNL |
| ctx_.dnnl_engine = dnnl::engine(dnnl::engine::kind::cpu, 0); |
| ctx_.dnnl_stream = dnnl::stream(ctx_.dnnl_engine); |
| #endif // USE_DNNL |
| // host_ = nullptr; |
| } |
| |
| CppCPU::~CppCPU(){}; |
| |
| void CppCPU::SetRandSeed(unsigned seed) { ctx_.random_generator.seed(seed); } |
| |
| void CppCPU::DoExec(function<void(Context*)>&& fn, int executor) { |
| CHECK_EQ(executor, 0); |
| fn(&ctx_); |
| } |
| |
| void CppCPU::TimeProfilingDoExec(function<void(Context*)>&& fn, int executor, |
| Node* node) { |
| CHECK_EQ(executor, 0); |
| |
| auto t_start = std::chrono::high_resolution_clock::now(); |
| fn(&ctx_); |
| std::chrono::duration<float> duration = |
| std::chrono::high_resolution_clock::now() - t_start; |
| node->time_elapsed_inc(duration.count()); |
| } |
| |
| void CppCPU::EvaluateTimeElapsed(Node* node) {} |
| |
| void* CppCPU::Malloc(int size) { |
| if (size > 0) { |
| void* ptr = malloc(size); |
| memset(ptr, 0, size); |
| return ptr; |
| } else { |
| return nullptr; |
| } |
| } |
| |
| void CppCPU::Free(void* ptr) { |
| if (ptr != nullptr) free(ptr); |
| } |
| |
| void CppCPU::CopyToFrom(void* dst, const void* src, size_t nBytes, |
| CopyDirection direction, Context* ctx) { |
| memcpy(dst, src, nBytes); |
| } |
| |
| } // namespace singa |