137 lines
4.5 KiB
C++
137 lines
4.5 KiB
C++
/*
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* ******************************************************************************
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* *
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* *
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* * This program and the accompanying materials are made available under the
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* * terms of the Apache License, Version 2.0 which is available at
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* * https://www.apache.org/licenses/LICENSE-2.0.
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* *
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* * See the NOTICE file distributed with this work for additional
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* * information regarding copyright ownership.
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* * Unless required by applicable law or agreed to in writing, software
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* * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* * License for the specific language governing permissions and limitations
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* * under the License.
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* *
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* * SPDX-License-Identifier: Apache-2.0
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* *****************************************************************************
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*/
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//
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// @author raver119@gmail.com
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//
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#ifndef __CUDABLAS__
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#include <helpers/ConstantHelper.h>
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#include <execution/AffinityManager.h>
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#include <types/types.h>
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#include <loops/type_conversions.h>
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#include <system/type_boilerplate.h>
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#include <cstring>
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#include <array/PrimaryPointerDeallocator.h>
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namespace sd {
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ConstantHelper::ConstantHelper() {
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int numDevices = getNumberOfDevices();
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_cache.resize(numDevices);
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_counters.resize(numDevices);
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for (int e = 0; e < numDevices; e++) {
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MAP_IMPL<ConstantDescriptor, ConstantHolder*> map;
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_cache[e] = map;
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_counters[e] = 0L;
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}
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}
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ConstantHelper::~ConstantHelper() {
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for (const auto &v:_cache) {
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for (const auto &c:v) {
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delete c.second;
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}
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}
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}
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ConstantHelper& ConstantHelper::getInstance() {
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static ConstantHelper instance;
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return instance;
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}
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void* ConstantHelper::replicatePointer(void *src, size_t numBytes, memory::Workspace *workspace) {
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if (workspace == nullptr) {
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auto deviceId = getCurrentDevice();
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_counters[deviceId] += numBytes;
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}
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int8_t *ptr = nullptr;
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ALLOCATE(ptr, workspace, numBytes, int8_t);
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std::memcpy(ptr, src, numBytes);
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return ptr;
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}
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int ConstantHelper::getCurrentDevice() {
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return AffinityManager::currentDeviceId();
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}
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int ConstantHelper::getNumberOfDevices() {
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return AffinityManager::numberOfDevices();
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}
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ConstantDataBuffer* ConstantHelper::constantBuffer(const ConstantDescriptor &descriptor, sd::DataType dataType) {
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const auto deviceId = getCurrentDevice();
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// we're locking away cache modification
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_mutexHolder.lock();
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if (_cache[deviceId].count(descriptor) == 0) {
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_cache[deviceId][descriptor] = new ConstantHolder();
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}
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auto holder = _cache[deviceId][descriptor];
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// releasing cache lock
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_mutexHolder.unlock();
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ConstantDataBuffer* result;
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// access to this holder instance is synchronous
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holder->mutex()->lock();
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if (holder->hasBuffer(dataType))
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result = holder->getConstantDataBuffer(dataType);
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else {
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auto size = descriptor.length() * DataTypeUtils::sizeOf(dataType);
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auto cbuff = std::make_shared<PointerWrapper>(new int8_t[size], std::make_shared<PrimaryPointerDeallocator>());
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_counters[deviceId] += size;
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// create buffer with this dtype
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if (descriptor.isFloat()) {
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BUILD_DOUBLE_SELECTOR(sd::DataType::DOUBLE, dataType, sd::TypeCast::convertGeneric, (nullptr, const_cast<double *>(descriptor.floatValues().data()), descriptor.length(), cbuff->pointer()), (sd::DataType::DOUBLE, double), LIBND4J_TYPES);
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} else if (descriptor.isInteger()) {
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BUILD_DOUBLE_SELECTOR(sd::DataType::INT64, dataType, sd::TypeCast::convertGeneric, (nullptr, const_cast<Nd4jLong *>(descriptor.integerValues().data()), descriptor.length(), cbuff->pointer()), (sd::DataType::INT64, Nd4jLong), LIBND4J_TYPES);
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}
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ConstantDataBuffer dataBuffer(cbuff, descriptor.length(), dataType);
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holder->addBuffer(dataBuffer, dataType);
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result = holder->getConstantDataBuffer(dataType);
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}
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holder->mutex()->unlock();
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return result;
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}
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Nd4jLong ConstantHelper::getCachedAmount(int deviceId) {
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int numDevices = getNumberOfDevices();
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if (deviceId > numDevices || deviceId < 0)
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return 0L;
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else
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return _counters[deviceId];
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}
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}
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#endif |