62860284b2
To use managed memory, compile the code defining MANAGED To use CUDA 8 page-fault memory, compile the code defining PAGEFAULT
59 lines
1.2 KiB
C++
59 lines
1.2 KiB
C++
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// Copyright (c) 2015-16 Tom Deakin, Simon McIntosh-Smith,
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// University of Bristol HPC
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//
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// For full license terms please see the LICENSE file distributed with this
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// source code
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#pragma once
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#include <iostream>
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#include <stdexcept>
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#include <sstream>
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#include "Stream.h"
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#if defined(PAGEFAULT)
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#define IMPLEMENTATION_STRING "CUDA - Page Fault"
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#elif defined(MANAGED)
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#define IMPLEMENTATION_STRING "CUDA - Managed Memory"
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#else
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#define IMPLEMENTATION_STRING "CUDA"
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#endif
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#define TBSIZE 1024
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#define DOT_NUM_BLOCKS 256
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template <class T>
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class CUDAStream : public Stream<T>
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{
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protected:
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// Size of arrays
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unsigned int array_size;
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// Host array for partial sums for dot kernel
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T *sums;
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// Device side pointers to arrays
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T *d_a;
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T *d_b;
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T *d_c;
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T *d_sum;
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public:
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CUDAStream(const unsigned int, const int);
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~CUDAStream();
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virtual void copy() override;
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virtual void add() override;
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virtual void mul() override;
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virtual void triad() override;
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virtual T dot() override;
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virtual void init_arrays(T initA, T initB, T initC) override;
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virtual void read_arrays(std::vector<T>& a, std::vector<T>& b, std::vector<T>& c) override;
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};
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