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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright (c) Facebook, Inc. and its affiliates. | ||
| * | ||
| * 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. | ||
| */ | ||
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|
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| #include "velox/dwio/common/QplJobPool.h" | ||
| #include <folly/Random.h> | ||
| #include <iostream> | ||
| #include "velox/common/base/Exceptions.h" | ||
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| namespace facebook::velox::dwio::common { | ||
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| std::array<qpl_job*, QplJobHWPool::MAX_JOB_NUMBER> | ||
| QplJobHWPool::hw_job_ptr_pool; | ||
| std::array<std::atomic<bool>, QplJobHWPool::MAX_JOB_NUMBER> | ||
| QplJobHWPool::hw_job_ptr_locks; | ||
| bool QplJobHWPool::iaa_job_ready = false; | ||
| std::unique_ptr<uint8_t[]> QplJobHWPool::hw_jobs_buffer; | ||
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| QplJobHWPool& QplJobHWPool::GetInstance() { | ||
| static QplJobHWPool pool; | ||
| return pool; | ||
| } | ||
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| QplJobHWPool::QplJobHWPool() { | ||
| if (!iaa_job_ready) { | ||
| (void)AllocateQPLJob(); | ||
| } | ||
| } | ||
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| QplJobHWPool::~QplJobHWPool() { | ||
| for (uint32_t i = 0; i < MAX_JOB_NUMBER; ++i) { | ||
| if (hw_job_ptr_pool[i]) { | ||
| qpl_fini_job(hw_job_ptr_pool[i]); | ||
| hw_job_ptr_pool[i] = nullptr; | ||
| } | ||
| } | ||
| iaa_job_ready = false; | ||
| } | ||
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| bool QplJobHWPool::AllocateQPLJob() { | ||
| uint32_t job_size = 0; | ||
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| // Get size required for saving a single qpl job object | ||
| qpl_get_job_size(qpl_path, &job_size); | ||
| // Allocate entire buffer for storing all job objects | ||
| hw_jobs_buffer = std::make_unique<uint8_t[]>(job_size * MAX_JOB_NUMBER); | ||
| // Initialize pool for storing all job object pointers | ||
| // Allocate buffer by shifting address offset for each job object. | ||
| for (uint32_t index = 0; index < MAX_JOB_NUMBER; ++index) { | ||
| qpl_job* qpl_job_ptr = | ||
| reinterpret_cast<qpl_job*>(hw_jobs_buffer.get() + index * job_size); | ||
| auto status = qpl_init_job(qpl_path, qpl_job_ptr); | ||
| if (status != QPL_STS_OK) { | ||
| iaa_job_ready = false; | ||
| LOG(WARNING) << "Initialization of hardware IAA failed, statsu: " | ||
| << status << ". Please check if Intel \ | ||
| In-Memory Analytics Accelerator (IAA) is properly set up!"; | ||
| return false; | ||
| } | ||
| this->hw_job_ptr_pool[index] = qpl_job_ptr; | ||
| hw_job_ptr_locks[index].store(false); | ||
| } | ||
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| iaa_job_ready = true; | ||
| return true; | ||
| } | ||
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| qpl_job* QplJobHWPool::AcquireDeflateJob(int& job_id) { | ||
| job_id = -1; | ||
| if (!job_ready()) { | ||
| return nullptr; | ||
| } | ||
| uint32_t retry = 0; | ||
| auto index = folly::Random::rand32(1, MAX_JOB_NUMBER - 1); | ||
| while (!tryLockJob(index)) { | ||
| index = folly::Random::rand32(1, MAX_JOB_NUMBER - 1); | ||
| retry++; | ||
| if (retry > MAX_JOB_NUMBER) { | ||
| return nullptr; | ||
| } | ||
| } | ||
| job_id = index; | ||
| if (index >= MAX_JOB_NUMBER) { | ||
| return nullptr; | ||
| } | ||
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| return hw_job_ptr_pool[index]; | ||
| } | ||
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| void QplJobHWPool::ReleaseJob(int job_id) { | ||
| if (job_id >= MAX_JOB_NUMBER || job_id <= 0) { | ||
| return; | ||
| } | ||
| assert(job_id < MAX_JOB_NUMBER); | ||
| hw_job_ptr_locks[job_id].store(false); | ||
| return; | ||
| } | ||
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| bool QplJobHWPool::tryLockJob(uint32_t index) { | ||
| bool expected = false; | ||
| assert(index < MAX_JOB_NUMBER); | ||
| return hw_job_ptr_locks[index].compare_exchange_strong(expected, true); | ||
| } | ||
|
|
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| } // namespace facebook::velox::dwio::common |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| /* | ||
| * Copyright (c) Facebook, Inc. and its affiliates. | ||
| * | ||
| * 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. | ||
| */ | ||
|
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| #pragma once | ||
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| #include <memory> | ||
| #include <mutex> | ||
| #include <random> | ||
| #include <vector> | ||
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| #include "qpl/qpl.h" | ||
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| namespace facebook::velox::dwio::common { | ||
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| // QplJobHWPool is resource pool to provide the job objects, which is | ||
| // used for storing context information. | ||
| // Memory for QPL job will be allocated when the QPLJobHWPool instance is | ||
| // created | ||
| class QplJobHWPool { | ||
| public: | ||
| static QplJobHWPool& GetInstance(); | ||
| QplJobHWPool(); | ||
| ~QplJobHWPool(); | ||
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| // Release QPL job by the job_id. | ||
| void ReleaseJob(int job_id); | ||
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| // Return if the QPL job is allocated sucessfully. | ||
| const bool& job_ready() { | ||
| return iaa_job_ready; | ||
| } | ||
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| qpl_job* AcquireDeflateJob(int& job_id); | ||
| qpl_job* GetJobById(int job_id) { | ||
| if (job_id >= MAX_JOB_NUMBER || job_id <= 0) { | ||
| return nullptr; | ||
| } | ||
| return hw_job_ptr_pool[job_id]; | ||
| } | ||
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| static constexpr auto MAX_JOB_NUMBER = 1024; | ||
|
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| private: | ||
| bool tryLockJob(uint32_t index); | ||
| bool AllocateQPLJob(); | ||
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| static constexpr qpl_path_t qpl_path = qpl_path_hardware; | ||
| // Max jobs in QPL_JOB_POOL | ||
| // Entire buffer for storing all job objects | ||
| static std::unique_ptr<uint8_t[]> hw_jobs_buffer; | ||
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| // Job pool for storing all job object pointers | ||
| static std::array<qpl_job*, MAX_JOB_NUMBER> hw_job_ptr_pool; | ||
|
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| // Locks for accessing each job object pointers | ||
| static bool iaa_job_ready; | ||
| static std::array<std::atomic<bool>, MAX_JOB_NUMBER> hw_job_ptr_locks; | ||
| }; | ||
|
|
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| } // namespace facebook::velox::dwio::common |
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