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CUDAStream.h
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// Copyright (c) 2015-16 Tom Deakin, Simon McIntosh-Smith,
// University of Bristol HPC
//
// For full license terms please see the LICENSE file distributed with this
// source code
#pragma once
#include <iostream>
#include <stdexcept>
#include <sstream>
#include <cuda_runtime.h>
#include "Stream.h"
#define IMPLEMENTATION_STRING "CUDA"
template <class T>
class CUDAStream : public Stream<T>
{
protected:
// Size of arrays
const unsigned int array_size;
const unsigned int block_cnt;
const unsigned int dot_block_cnt;
const bool evt_timing;
cudaEvent_t start_ev;
cudaEvent_t stop_ev;
// Host array for partial sums for dot kernel
T *sums;
// Device side pointers to arrays
T *d_a;
T *d_b;
T *d_c;
public:
CUDAStream(const unsigned int, const bool, const int);
~CUDAStream();
virtual float read() override;
virtual float write() override;
virtual float copy() override;
virtual float add() override;
virtual float mul() override;
virtual float triad() override;
virtual T dot() override;
virtual void init_arrays(T initA, T initB, T initC) override;
virtual void read_arrays(std::vector<T>& a, std::vector<T>& b, std::vector<T>& c) override;
};