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82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include "cache/GpuCacheMgr.h"
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#include "server/Config.h"
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#include "utils/Log.h"
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#include <sstream>
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#include <utility>
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namespace milvus {
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namespace cache {
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std::mutex GpuCacheMgr::mutex_;
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std::unordered_map<uint64_t, GpuCacheMgrPtr> GpuCacheMgr::instance_;
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namespace {
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constexpr int64_t G_BYTE = 1024 * 1024 * 1024;
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}
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GpuCacheMgr::GpuCacheMgr() {
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server::Config& config = server::Config::GetInstance();
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Status s;
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int64_t gpu_cache_cap;
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s = config.GetCacheConfigGpuCacheCapacity(gpu_cache_cap);
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if (!s.ok()) {
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SERVER_LOG_ERROR << s.message();
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}
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int64_t cap = gpu_cache_cap * G_BYTE;
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cache_ = std::make_shared<Cache<DataObjPtr>>(cap, 1UL << 32);
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float gpu_mem_threshold;
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s = config.GetCacheConfigGpuCacheThreshold(gpu_mem_threshold);
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if (!s.ok()) {
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SERVER_LOG_ERROR << s.message();
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}
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if (gpu_mem_threshold > 0.0 && gpu_mem_threshold <= 1.0) {
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cache_->set_freemem_percent(gpu_mem_threshold);
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} else {
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SERVER_LOG_ERROR << "Invalid gpu_mem_threshold: " << gpu_mem_threshold << ", by default set to "
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<< cache_->freemem_percent();
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}
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}
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GpuCacheMgr*
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GpuCacheMgr::GetInstance(uint64_t gpu_id) {
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if (instance_.find(gpu_id) == instance_.end()) {
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std::lock_guard<std::mutex> lock(mutex_);
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if (instance_.find(gpu_id) == instance_.end()) {
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instance_.insert(std::pair<uint64_t, GpuCacheMgrPtr>(gpu_id, std::make_shared<GpuCacheMgr>()));
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}
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return instance_[gpu_id].get();
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} else {
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std::lock_guard<std::mutex> lock(mutex_);
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return instance_[gpu_id].get();
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}
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}
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DataObjPtr
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GpuCacheMgr::GetIndex(const std::string& key) {
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DataObjPtr obj = GetItem(key);
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return obj;
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}
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} // namespace cache
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} // namespace milvus
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