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gpu.h
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gpu.h
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#pragma once
#include <cl.h>
#include <vector>
class gpu;
class gpu_program
{
private:
//读取代码
char* readCode(const char* filename);
cl_program createProgram(const char* code, cl_context context, cl_device_id* device, int dev_id);
//创建可执行代码
void createCode(const char* filename, const char* entry, gpu& _gpu);
public:
//程序
cl_kernel kernel;
//参数(全部以指针的形式传入)
std::vector<cl_mem> data;
void loadProgram(const char* filename, const char* entry, gpu& _gpu);
//输入参数
void setArgs(std::vector<void*> _data)
{
for(int i=0;i<_data.size();i++)
clSetKernelArg(kernel, i, sizeof(void*), _data[i]);
}
//撤销参数
void clearArgs() { data.clear(); }
gpu_program();
~gpu_program();
};
class gpu
{
public:
//并行计算内部句柄
cl_device_id* devices;//设备
cl_context _context;//上下文
cl_command_queue _commandQueue;//命令队列
int dev_id=0;
int argNum = 0;
gpu();
//初始化OpenCL
cl_int CL_Init(int plat_id);
//内存申请(数据指针,大小)
cl_mem gmalloc(void* data, unsigned long size, cl_mem_flags flags);
//运行
void run(int dim, gpu_program program, size_t size_xy[2], size_t localWorkSize[2]);
~gpu();
};