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91 lines
2.2 KiB
91 lines
2.2 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file EthashCUDAMiner.h
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*
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* Determines the PoW algorithm.
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*/
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#pragma once
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#if ETH_ETHASHCUDA || !ETH_TRUE
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#include "libdevcore/Worker.h"
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#include "EthashAux.h"
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#include "Miner.h"
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namespace dev
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{
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namespace eth
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{
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class EthashCUDAMiner : public GenericMiner<EthashProofOfWork>, Worker
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{
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friend class dev::eth::EthashCUDAHook;
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public:
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EthashCUDAMiner(ConstructionInfo const& _ci);
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~EthashCUDAMiner();
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static unsigned instances()
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{
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return s_numInstances > 0 ? s_numInstances : 1;
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}
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static std::string platformInfo();
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static unsigned getNumDevices();
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static void listDevices();
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static bool configureGPU(
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unsigned _blockSize,
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unsigned _gridSize,
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unsigned _numStreams,
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unsigned _extraGPUMemory,
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unsigned _scheduleFlag,
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uint64_t _currentBlock
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);
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static void setNumInstances(unsigned _instances)
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{
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s_numInstances = std::min<unsigned>(_instances, getNumDevices());
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}
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static void setDevices(unsigned * _devices, unsigned _selectedDeviceCount)
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{
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for (unsigned i = 0; i < _selectedDeviceCount; i++)
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{
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s_devices[i] = _devices[i];
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}
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}
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protected:
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void kickOff() override;
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void pause() override;
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private:
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void workLoop() override;
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bool report(uint64_t _nonce);
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using GenericMiner<EthashProofOfWork>::accumulateHashes;
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EthashCUDAHook* m_hook = nullptr;
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ethash_cuda_miner* m_miner = nullptr;
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h256 m_minerSeed; ///< Last seed in m_miner
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static unsigned s_platformId;
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static unsigned s_deviceId;
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static unsigned s_numInstances;
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static int s_devices[16];
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};
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}
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}
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#endif
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