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vortex/tests/opencl/bfs/CLHelper.h
Blaise Tine 03406c0a3f project tests refactoring
2021-06-13 17:42:04 -07:00

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//------------------------------------------
//--cambine:helper function for OpenCL
//--programmer: Jianbin Fang
//--date: 27/12/2010
//------------------------------------------
#ifndef _CL_HELPER_
#define _CL_HELPER_
#include <CL/cl.h>
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
using std::string;
using std::ifstream;
using std::cerr;
using std::endl;
using std::cout;
//#pragma OPENCL EXTENSION cl_nv_compiler_options:enable
#define WORK_DIM 2 // work-items dimensions
struct oclHandleStruct {
cl_context context;
cl_device_id *devices;
cl_command_queue queue;
cl_program program;
cl_int cl_status;
std::string error_str;
std::vector<cl_kernel> kernel;
};
struct oclHandleStruct oclHandles;
char kernel_file[100] = "Kernels.cl";
int total_kernels = 2;
string kernel_names[2] = {"BFS_1", "BFS_2"};
int work_group_size = 512;
int device_id_inused = 0; // deviced id used (default : 0)
int read_kernel_file(const char* filename, uint8_t** data, size_t* size) {
if (nullptr == filename || nullptr == data || 0 == size)
return -1;
FILE* fp = fopen(filename, "r");
if (NULL == fp) {
fprintf(stderr, "Failed to load kernel.");
return -1;
}
fseek(fp , 0 , SEEK_END);
long fsize = ftell(fp);
rewind(fp);
*data = (uint8_t*)malloc(fsize);
*size = fread(*data, 1, fsize, fp);
fclose(fp);
return 0;
}
/*
* Converts the contents of a file into a string
*/
string FileToString(const string fileName) {
ifstream f(fileName.c_str(), ifstream::in | ifstream::binary);
try {
size_t size;
char *str;
string s;
if (f.is_open()) {
size_t fileSize;
f.seekg(0, ifstream::end);
size = fileSize = f.tellg();
f.seekg(0, ifstream::beg);
str = new char[size + 1];
if (!str)
throw(string("Could not allocate memory"));
f.read(str, fileSize);
f.close();
str[size] = '\0';
s = str;
delete[] str;
return s;
}
} catch (std::string msg) {
cerr << "Exception caught in FileToString(): " << msg << endl;
if (f.is_open())
f.close();
} catch (...) {
cerr << "Exception caught in FileToString()" << endl;
if (f.is_open())
f.close();
}
string errorMsg = "FileToString()::Error: Unable to open file " + fileName;
throw(errorMsg);
}
//---------------------------------------
// Read command line parameters
//
void _clCmdParams(int argc, char *argv[]) {
for (int i = 0; i < argc; ++i) {
switch (argv[i][1]) {
case 'g': //--g stands for size of work group
if (++i < argc) {
sscanf(argv[i], "%u", &work_group_size);
} else {
std::cerr << "Could not read argument after option " << argv[i - 1]
<< std::endl;
throw;
}
break;
case 'd': //--d stands for device id used in computaion
if (++i < argc) {
sscanf(argv[i], "%u", &device_id_inused);
} else {
std::cerr << "Could not read argument after option " << argv[i - 1]
<< std::endl;
throw;
}
break;
default:;
}
}
}
//---------------------------------------
// Initlize CL objects
//--description: there are 5 steps to initialize all the OpenCL objects needed
//--revised on 04/01/2011: get the number of devices and
// devices have no relationship with context
void _clInit() {
printf("_clInit()\n");
int DEVICE_ID_INUSED = device_id_inused;
cl_int resultCL;
oclHandles.context = NULL;
oclHandles.devices = NULL;
oclHandles.queue = NULL;
oclHandles.program = NULL;
cl_uint deviceListSize;
//-----------------------------------------------
//--cambine-1: find the available platforms and select one
cl_uint numPlatforms = 1;
cl_platform_id targetPlatform = NULL;
cl_platform_id *allPlatforms =
(cl_platform_id *)malloc(numPlatforms * sizeof(cl_platform_id));
resultCL = clGetPlatformIDs(numPlatforms, allPlatforms, NULL);
if (resultCL != CL_SUCCESS)
throw(string("InitCL()::Error: Getting platform ids (clGetPlatformIDs)"));
// Select the target platform. Default: first platform
targetPlatform = allPlatforms[0];
/*for (int i = 0; i < numPlatforms; i++)
{
char pbuff[128];
resultCL = clGetPlatformInfo( allPlatforms[i],
CL_PLATFORM_VENDOR,
sizeof(pbuff),
pbuff,
NULL);
if (resultCL != CL_SUCCESS)
throw (string("InitCL()::Error: Getting platform info (clGetPlatformInfo)"));
//printf("vedor is %s\n",pbuff);
}
free(allPlatforms);*/
//-----------------------------------------------
//--cambine-2: create an OpenCL context
/*cl_context_properties cprops[3] = { CL_CONTEXT_PLATFORM,
(cl_context_properties)targetPlatform, 0 };
oclHandles.context = clCreateContextFromType(cprops,
CL_DEVICE_TYPE_GPU,
NULL,
NULL,
&resultCL);
if ((resultCL != CL_SUCCESS) || (oclHandles.context == NULL))
throw (string("InitCL()::Error: Creating Context
(clCreateContextFromType)"));
//-----------------------------------------------
//--cambine-3: detect OpenCL devices
// First, get the size of device list
oclHandles.cl_status = clGetDeviceIDs(targetPlatform, CL_DEVICE_TYPE_GPU, 0,
NULL, &deviceListSize);
if(oclHandles.cl_status!=CL_SUCCESS){
throw(string("exception in _clInit -> clGetDeviceIDs"));
}
if (deviceListSize == 0)
throw(string("InitCL()::Error: No devices found."));
printf("OK1()\n");
//std::cout<<"device number:"<<deviceListSize<<std::endl;*/
// Now, allocate the device list
deviceListSize = 1;
oclHandles.devices =
(cl_device_id *)malloc(deviceListSize * sizeof(cl_device_id));
if (oclHandles.devices == 0)
throw(string("InitCL()::Error: Could not allocate memory."));
//* Next, get the device list data
oclHandles.cl_status =
clGetDeviceIDs(targetPlatform, CL_DEVICE_TYPE_DEFAULT, deviceListSize,
oclHandles.devices, NULL);
if (oclHandles.cl_status != CL_SUCCESS) {
throw(string("exception in _clInit -> clGetDeviceIDs-2"));
}
oclHandles.context = clCreateContext(NULL, deviceListSize, oclHandles.devices,
NULL, NULL, &resultCL);
if ((resultCL != CL_SUCCESS) || (oclHandles.context == NULL))
throw(string("InitCL()::Error: Creating Context (clCreateContext)"));
//-----------------------------------------------
//--cambine-4: Create an OpenCL command queue
oclHandles.queue = clCreateCommandQueue(
oclHandles.context, oclHandles.devices[DEVICE_ID_INUSED], 0, &resultCL);
//printf("resultCL=%d, queue=0x%x\n", resultCL, oclHandles.queue);
if ((resultCL != CL_SUCCESS) || (oclHandles.queue == NULL))
throw(string("InitCL()::Creating Command Queue. (clCreateCommandQueue)"));
//-----------------------------------------------
//--cambine-5: Load CL file, build CL program object, create CL kernel object
/*std::string source_str = FileToString(kernel_file);
const char * source = source_str.c_str();
size_t sourceSize[] = { source_str.length() };*/
//oclHandles.program = clCreateProgramWithBuiltInKernels(
// oclHandles.context, 1, &oclHandles.devices[DEVICE_ID_INUSED],
// "BFS_1;BFS_2", &resultCL);
/*oclHandles.program = clCreateProgramWithSource(oclHandles.context,
1,
&source,
sourceSize,
&resultCL);*/
// read kernel binary from file
uint8_t *kernel_bin = NULL;
size_t kernel_size;
cl_int binary_status = 0;
if (0 != read_kernel_file("kernel.pocl", &kernel_bin, &kernel_size))
std::abort();
oclHandles.program = clCreateProgramWithBinary(
oclHandles.context, 1, &oclHandles.devices[DEVICE_ID_INUSED], &kernel_size, (const uint8_t**)&kernel_bin, &binary_status, &resultCL);
free(kernel_bin);
if ((resultCL != CL_SUCCESS) || (oclHandles.program == NULL))
throw(string("InitCL()::Error: Loading Binary into cl_program. "
"(clCreateProgramWithBinary)"));
// insert debug information
// std::string options= "-cl-nv-verbose"; //Doesn't work on AMD machines
// options += " -cl-nv-opt-level=3";
resultCL = clBuildProgram(oclHandles.program, deviceListSize,
oclHandles.devices, NULL, NULL, NULL);
if ((resultCL != CL_SUCCESS) || (oclHandles.program == NULL)) {
cerr << "InitCL()::Error: In clBuildProgram" << endl;
size_t length;
resultCL = clGetProgramBuildInfo(oclHandles.program,
oclHandles.devices[DEVICE_ID_INUSED],
CL_PROGRAM_BUILD_LOG, 0, NULL, &length);
if (resultCL != CL_SUCCESS)
throw(string("InitCL()::Error: Getting Program build "
"info(clGetProgramBuildInfo)"));
char *buffer = (char *)malloc(length);
resultCL = clGetProgramBuildInfo(
oclHandles.program, oclHandles.devices[DEVICE_ID_INUSED],
CL_PROGRAM_BUILD_LOG, length, buffer, NULL);
if (resultCL != CL_SUCCESS)
throw(string("InitCL()::Error: Getting Program build "
"info(clGetProgramBuildInfo)"));
cerr << buffer << endl;
free(buffer);
throw(string("InitCL()::Error: Building Program (clBuildProgram)"));
}
// get program information in intermediate representation
#ifdef PTX_MSG
size_t binary_sizes[deviceListSize];
char *binaries[deviceListSize];
// figure out number of devices and the sizes of the binary for each device.
oclHandles.cl_status =
clGetProgramInfo(oclHandles.program, CL_PROGRAM_BINARY_SIZES,
sizeof(size_t) * deviceListSize, &binary_sizes, NULL);
if (oclHandles.cl_status != CL_SUCCESS) {
throw(string("--cambine:exception in _InitCL -> clGetProgramInfo-2"));
}
std::cout << "--cambine:" << binary_sizes << std::endl;
// copy over all of the generated binaries.
for (int i = 0; i < deviceListSize; i++)
binaries[i] = (char *)malloc(sizeof(char) * (binary_sizes[i] + 1));
oclHandles.cl_status =
clGetProgramInfo(oclHandles.program, CL_PROGRAM_BINARIES,
sizeof(char *) * deviceListSize, binaries, NULL);
if (oclHandles.cl_status != CL_SUCCESS) {
throw(string("--cambine:exception in _InitCL -> clGetProgramInfo-3"));
}
for (int i = 0; i < deviceListSize; i++)
binaries[i][binary_sizes[i]] = '\0';
std::cout << "--cambine:writing ptd information..." << std::endl;
FILE *ptx_file = fopen("cl.ptx", "w");
if (ptx_file == NULL) {
throw(string("exceptions in allocate ptx file."));
}
fprintf(ptx_file, "%s", binaries[DEVICE_ID_INUSED]);
fclose(ptx_file);
std::cout << "--cambine:writing ptd information done." << std::endl;
for (int i = 0; i < deviceListSize; i++)
free(binaries[i]);
#endif
for (int nKernel = 0; nKernel < total_kernels; nKernel++) {
/* get a kernel object handle for a kernel with the given name */
cl_kernel kernel = clCreateKernel(
oclHandles.program, (kernel_names[nKernel]).c_str(), &resultCL);
if ((resultCL != CL_SUCCESS) || (kernel == NULL)) {
string errorMsg = "InitCL()::Error: Creating Kernel (clCreateKernel) \"" +
kernel_names[nKernel] + "\"";
throw(errorMsg);
}
oclHandles.kernel.push_back(kernel);
}
// get resource alocation information
#ifdef RES_MSG
char *build_log;
size_t ret_val_size;
oclHandles.cl_status = clGetProgramBuildInfo(
oclHandles.program, oclHandles.devices[DEVICE_ID_INUSED],
CL_PROGRAM_BUILD_LOG, 0, NULL, &ret_val_size);
if (oclHandles.cl_status != CL_SUCCESS) {
throw(string("exceptions in _InitCL -> getting resource information"));
}
build_log = (char *)malloc(ret_val_size + 1);
oclHandles.cl_status = clGetProgramBuildInfo(
oclHandles.program, oclHandles.devices[DEVICE_ID_INUSED],
CL_PROGRAM_BUILD_LOG, ret_val_size, build_log, NULL);
if (oclHandles.cl_status != CL_SUCCESS) {
throw(string(
"exceptions in _InitCL -> getting resources allocation information-2"));
}
build_log[ret_val_size] = '\0';
std::cout << "--cambine:" << build_log << std::endl;
free(build_log);
#endif
}
//---------------------------------------
// release CL objects
void _clRelease() {
char errorFlag = false;
for (int nKernel = 0; nKernel < oclHandles.kernel.size(); nKernel++) {
if (oclHandles.kernel[nKernel] != NULL) {
cl_int resultCL = clReleaseKernel(oclHandles.kernel[nKernel]);
if (resultCL != CL_SUCCESS) {
cerr << "ReleaseCL()::Error: In clReleaseKernel" << endl;
errorFlag = true;
}
oclHandles.kernel[nKernel] = NULL;
printf("clReleaseKernel()\n");
}
}
if (oclHandles.program != NULL) {
cl_int resultCL = clReleaseProgram(oclHandles.program);
if (resultCL != CL_SUCCESS) {
cerr << "ReleaseCL()::Error: In clReleaseProgram" << endl;
errorFlag = true;
}
oclHandles.program = NULL;
printf("clReleaseProgram()\n");
}
if (oclHandles.queue != NULL) {
cl_int resultCL = clReleaseCommandQueue(oclHandles.queue);
if (resultCL != CL_SUCCESS) {
cerr << "ReleaseCL()::Error: In clReleaseCommandQueue" << endl;
errorFlag = true;
}
oclHandles.queue = NULL;
printf("clReleaseCommandQueue()\n");
}
if (oclHandles.context != NULL) {
cl_int resultCL = clReleaseContext(oclHandles.context);
if (resultCL != CL_SUCCESS) {
cerr << "ReleaseCL()::Error: In clReleaseContext" << endl;
errorFlag = true;
}
oclHandles.context = NULL;
printf("clReleaseContext()\n");
}
if (oclHandles.devices != NULL) {
cl_int resultCL = clReleaseDevice(oclHandles.devices[0]);
if (resultCL != CL_SUCCESS) {
cerr << "ReleaseCL()::Error: In clReleaseDevice" << endl;
errorFlag = true;
}
free(oclHandles.devices);
printf("clReleaseDevice()\n");
}
if (errorFlag)
throw(string("ReleaseCL()::Error encountered."));
}
//--------------------------------------------------------
//--cambine:create buffer and then copy data from host to device
cl_mem _clCreateAndCpyMem(int size, void *h_mem_source) throw(string) {
cl_mem d_mem;
d_mem = clCreateBuffer(oclHandles.context,
CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, size,
h_mem_source, &oclHandles.cl_status);
#ifdef ERRMSG
if (oclHandles.cl_status != CL_SUCCESS)
throw(string("excpetion in _clCreateAndCpyMem()"));
#endif
return d_mem;
}
//-------------------------------------------------------
//--cambine: create read only buffer for devices
//--date: 17/01/2011
cl_mem _clMallocRW(int size, void *h_mem_ptr) throw(string) {
cl_mem d_mem;
d_mem = clCreateBuffer(oclHandles.context,
CL_MEM_READ_WRITE | CL_MEM_COPY_HOST_PTR, size,
h_mem_ptr, &oclHandles.cl_status);
#ifdef ERRMSG
if (oclHandles.cl_status != CL_SUCCESS)
throw(string("excpetion in _clMallocRW"));
#endif
return d_mem;
}
//-------------------------------------------------------
//--cambine: create read and write buffer for devices
//--date: 17/01/2011
cl_mem _clMalloc(int size, void *h_mem_ptr) throw(string) {
cl_mem d_mem;
d_mem = clCreateBuffer(oclHandles.context,
CL_MEM_WRITE_ONLY | CL_MEM_COPY_HOST_PTR, size,
h_mem_ptr, &oclHandles.cl_status);
#ifdef ERRMSG
if (oclHandles.cl_status != CL_SUCCESS)
throw(string("excpetion in _clMalloc"));
#endif
return d_mem;
}
//-------------------------------------------------------
//--cambine: transfer data from host to device
//--date: 17/01/2011
void _clMemcpyH2D(cl_mem d_mem, int size, const void *h_mem_ptr) throw(string) {
oclHandles.cl_status = clEnqueueWriteBuffer(
oclHandles.queue, d_mem, CL_TRUE, 0, size, h_mem_ptr, 0, NULL, NULL);
#ifdef ERRMSG
if (oclHandles.cl_status != CL_SUCCESS)
throw(string("excpetion in _clMemcpyH2D"));
#endif
}
//--------------------------------------------------------
//--cambine:create buffer and then copy data from host to device with pinned
// memory
cl_mem _clCreateAndCpyPinnedMem(int size, float *h_mem_source) throw(string) {
cl_mem d_mem, d_mem_pinned;
float *h_mem_pinned = NULL;
d_mem_pinned = clCreateBuffer(oclHandles.context,
CL_MEM_READ_ONLY | CL_MEM_ALLOC_HOST_PTR, size,
NULL, &oclHandles.cl_status);
#ifdef ERRMSG
if (oclHandles.cl_status != CL_SUCCESS)
throw(string("excpetion in _clCreateAndCpyMem()->d_mem_pinned"));
#endif
//------------
d_mem = clCreateBuffer(oclHandles.context, CL_MEM_READ_ONLY, size, NULL,
&oclHandles.cl_status);
#ifdef ERRMSG
if (oclHandles.cl_status != CL_SUCCESS)
throw(string("excpetion in _clCreateAndCpyMem() -> d_mem "));
#endif
//----------
h_mem_pinned = (cl_float *)clEnqueueMapBuffer(
oclHandles.queue, d_mem_pinned, CL_TRUE, CL_MAP_WRITE, 0, size, 0, NULL,
NULL, &oclHandles.cl_status);
#ifdef ERRMSG
if (oclHandles.cl_status != CL_SUCCESS)
throw(string("excpetion in _clCreateAndCpyMem() -> clEnqueueMapBuffer"));
#endif
int element_number = size / sizeof(float);
#pragma omp parallel for
for (int i = 0; i < element_number; i++) {
h_mem_pinned[i] = h_mem_source[i];
}
//----------
oclHandles.cl_status = clEnqueueWriteBuffer(
oclHandles.queue, d_mem, CL_TRUE, 0, size, h_mem_pinned, 0, NULL, NULL);
#ifdef ERRMSG
if (oclHandles.cl_status != CL_SUCCESS)
throw(string("excpetion in _clCreateAndCpyMem() -> clEnqueueWriteBuffer"));
#endif
return d_mem;
}
//--------------------------------------------------------
//--cambine:create write only buffer on device
cl_mem _clMallocWO(int size) throw(string) {
cl_mem d_mem;
d_mem = clCreateBuffer(oclHandles.context, CL_MEM_WRITE_ONLY, size, 0,
&oclHandles.cl_status);
#ifdef ERRMSG
if (oclHandles.cl_status != CL_SUCCESS)
throw(string("excpetion in _clCreateMem()"));
#endif
return d_mem;
}
//--------------------------------------------------------
// transfer data from device to host
void _clMemcpyD2H(cl_mem d_mem, int size, void *h_mem) throw(string) {
oclHandles.cl_status = clEnqueueReadBuffer(oclHandles.queue, d_mem, CL_TRUE,
0, size, h_mem, 0, 0, 0);
#ifdef ERRMSG
oclHandles.error_str = "excpetion in _clCpyMemD2H -> ";
switch (oclHandles.cl_status) {
case CL_INVALID_COMMAND_QUEUE:
oclHandles.error_str += "CL_INVALID_COMMAND_QUEUE";
break;
case CL_INVALID_CONTEXT:
oclHandles.error_str += "CL_INVALID_CONTEXT";
break;
case CL_INVALID_MEM_OBJECT:
oclHandles.error_str += "CL_INVALID_MEM_OBJECT";
break;
case CL_INVALID_VALUE:
oclHandles.error_str += "CL_INVALID_VALUE";
break;
case CL_INVALID_EVENT_WAIT_LIST:
oclHandles.error_str += "CL_INVALID_EVENT_WAIT_LIST";
break;
case CL_MEM_OBJECT_ALLOCATION_FAILURE:
oclHandles.error_str += "CL_MEM_OBJECT_ALLOCATION_FAILURE";
break;
case CL_OUT_OF_HOST_MEMORY:
oclHandles.error_str += "CL_OUT_OF_HOST_MEMORY";
break;
default:
oclHandles.error_str += "Unknown reason";
break;
}
if (oclHandles.cl_status != CL_SUCCESS)
throw(oclHandles.error_str);
#endif
}
//--------------------------------------------------------
// set kernel arguments
void _clSetArgs(int kernel_id, int arg_idx, void *d_mem,
int size = 0) throw(string) {
if (!size) {
oclHandles.cl_status = clSetKernelArg(oclHandles.kernel[kernel_id], arg_idx,
sizeof(d_mem), &d_mem);
#ifdef ERRMSG
oclHandles.error_str = "excpetion in _clSetKernelArg() ";
switch (oclHandles.cl_status) {
case CL_INVALID_KERNEL:
oclHandles.error_str += "CL_INVALID_KERNEL";
break;
case CL_INVALID_ARG_INDEX:
oclHandles.error_str += "CL_INVALID_ARG_INDEX";
break;
case CL_INVALID_ARG_VALUE:
oclHandles.error_str += "CL_INVALID_ARG_VALUE";
break;
case CL_INVALID_MEM_OBJECT:
oclHandles.error_str += "CL_INVALID_MEM_OBJECT";
break;
case CL_INVALID_SAMPLER:
oclHandles.error_str += "CL_INVALID_SAMPLER";
break;
case CL_INVALID_ARG_SIZE:
oclHandles.error_str += "CL_INVALID_ARG_SIZE";
break;
case CL_OUT_OF_RESOURCES:
oclHandles.error_str += "CL_OUT_OF_RESOURCES";
break;
case CL_OUT_OF_HOST_MEMORY:
oclHandles.error_str += "CL_OUT_OF_HOST_MEMORY";
break;
default:
oclHandles.error_str += "Unknown reason";
break;
}
if (oclHandles.cl_status != CL_SUCCESS)
throw(oclHandles.error_str);
#endif
} else {
oclHandles.cl_status =
clSetKernelArg(oclHandles.kernel[kernel_id], arg_idx, size, d_mem);
#ifdef ERRMSG
oclHandles.error_str = "excpetion in _clSetKernelArg() ";
switch (oclHandles.cl_status) {
case CL_INVALID_KERNEL:
oclHandles.error_str += "CL_INVALID_KERNEL";
break;
case CL_INVALID_ARG_INDEX:
oclHandles.error_str += "CL_INVALID_ARG_INDEX";
break;
case CL_INVALID_ARG_VALUE:
oclHandles.error_str += "CL_INVALID_ARG_VALUE";
break;
case CL_INVALID_MEM_OBJECT:
oclHandles.error_str += "CL_INVALID_MEM_OBJECT";
break;
case CL_INVALID_SAMPLER:
oclHandles.error_str += "CL_INVALID_SAMPLER";
break;
case CL_INVALID_ARG_SIZE:
oclHandles.error_str += "CL_INVALID_ARG_SIZE";
break;
case CL_OUT_OF_RESOURCES:
oclHandles.error_str += "CL_OUT_OF_RESOURCES";
break;
case CL_OUT_OF_HOST_MEMORY:
oclHandles.error_str += "CL_OUT_OF_HOST_MEMORY";
break;
default:
oclHandles.error_str += "Unknown reason";
break;
}
if (oclHandles.cl_status != CL_SUCCESS)
throw(oclHandles.error_str);
#endif
}
}
void _clFinish() throw(string) {
oclHandles.cl_status = clFinish(oclHandles.queue);
#ifdef ERRMSG
oclHandles.error_str = "excpetion in _clFinish";
switch (oclHandles.cl_status) {
case CL_INVALID_COMMAND_QUEUE:
oclHandles.error_str += "CL_INVALID_COMMAND_QUEUE";
break;
case CL_OUT_OF_RESOURCES:
oclHandles.error_str += "CL_OUT_OF_RESOURCES";
break;
case CL_OUT_OF_HOST_MEMORY:
oclHandles.error_str += "CL_OUT_OF_HOST_MEMORY";
break;
default:
oclHandles.error_str += "Unknown reasons";
break;
}
if (oclHandles.cl_status != CL_SUCCESS) {
throw(oclHandles.error_str);
}
#endif
}
//--------------------------------------------------------
//--cambine:enqueue kernel
void _clInvokeKernel(int kernel_id, int work_items,
int work_group_size) throw(string) {
cl_uint work_dim = WORK_DIM;
//cl_event e[1];
if (work_items % work_group_size != 0) // process situations that work_items
// cannot be divided by work_group_size
work_items =
work_items + (work_group_size - (work_items % work_group_size));
size_t local_work_size[] = {work_group_size, 1};
size_t global_work_size[] = {work_items, 1};
oclHandles.cl_status = clEnqueueNDRangeKernel(
oclHandles.queue, oclHandles.kernel[kernel_id], work_dim, 0,
global_work_size, local_work_size, 0, 0, NULL);
#ifdef ERRMSG
oclHandles.error_str = "excpetion in _clInvokeKernel() -> ";
switch (oclHandles.cl_status) {
case CL_INVALID_PROGRAM_EXECUTABLE:
oclHandles.error_str += "CL_INVALID_PROGRAM_EXECUTABLE";
break;
case CL_INVALID_COMMAND_QUEUE:
oclHandles.error_str += "CL_INVALID_COMMAND_QUEUE";
break;
case CL_INVALID_KERNEL:
oclHandles.error_str += "CL_INVALID_KERNEL";
break;
case CL_INVALID_CONTEXT:
oclHandles.error_str += "CL_INVALID_CONTEXT";
break;
case CL_INVALID_KERNEL_ARGS:
oclHandles.error_str += "CL_INVALID_KERNEL_ARGS";
break;
case CL_INVALID_WORK_DIMENSION:
oclHandles.error_str += "CL_INVALID_WORK_DIMENSION";
break;
case CL_INVALID_GLOBAL_WORK_SIZE:
oclHandles.error_str += "CL_INVALID_GLOBAL_WORK_SIZE";
break;
case CL_INVALID_WORK_GROUP_SIZE:
oclHandles.error_str += "CL_INVALID_WORK_GROUP_SIZE";
break;
case CL_INVALID_WORK_ITEM_SIZE:
oclHandles.error_str += "CL_INVALID_WORK_ITEM_SIZE";
break;
case CL_INVALID_GLOBAL_OFFSET:
oclHandles.error_str += "CL_INVALID_GLOBAL_OFFSET";
break;
case CL_OUT_OF_RESOURCES:
oclHandles.error_str += "CL_OUT_OF_RESOURCES";
break;
case CL_MEM_OBJECT_ALLOCATION_FAILURE:
oclHandles.error_str += "CL_MEM_OBJECT_ALLOCATION_FAILURE";
break;
case CL_INVALID_EVENT_WAIT_LIST:
oclHandles.error_str += "CL_INVALID_EVENT_WAIT_LIST";
break;
case CL_OUT_OF_HOST_MEMORY:
oclHandles.error_str += "CL_OUT_OF_HOST_MEMORY";
break;
default:
oclHandles.error_str += "Unkown reseason";
break;
}
if (oclHandles.cl_status != CL_SUCCESS)
throw(oclHandles.error_str);
#endif
//_clFinish();
// oclHandles.cl_status = clWaitForEvents(1, &e[0]);
// #ifdef ERRMSG
// if (oclHandles.cl_status!= CL_SUCCESS)
// throw(string("excpetion in _clEnqueueNDRange() -> clWaitForEvents"));
// #endif
}
void _clInvokeKernel2D(int kernel_id, int range_x, int range_y, int group_x,
int group_y) throw(string) {
cl_uint work_dim = WORK_DIM;
size_t local_work_size[] = {group_x, group_y};
size_t global_work_size[] = {range_x, range_y};
//cl_event e[1];
/*if(work_items%work_group_size != 0) //process situations that work_items
cannot be divided by work_group_size
work_items = work_items + (work_group_size-(work_items%work_group_size));*/
oclHandles.cl_status = clEnqueueNDRangeKernel(
oclHandles.queue, oclHandles.kernel[kernel_id], work_dim, 0,
global_work_size, local_work_size, 0, 0, NULL);
#ifdef ERRMSG
oclHandles.error_str = "excpetion in _clInvokeKernel() -> ";
switch (oclHandles.cl_status) {
case CL_INVALID_PROGRAM_EXECUTABLE:
oclHandles.error_str += "CL_INVALID_PROGRAM_EXECUTABLE";
break;
case CL_INVALID_COMMAND_QUEUE:
oclHandles.error_str += "CL_INVALID_COMMAND_QUEUE";
break;
case CL_INVALID_KERNEL:
oclHandles.error_str += "CL_INVALID_KERNEL";
break;
case CL_INVALID_CONTEXT:
oclHandles.error_str += "CL_INVALID_CONTEXT";
break;
case CL_INVALID_KERNEL_ARGS:
oclHandles.error_str += "CL_INVALID_KERNEL_ARGS";
break;
case CL_INVALID_WORK_DIMENSION:
oclHandles.error_str += "CL_INVALID_WORK_DIMENSION";
break;
case CL_INVALID_GLOBAL_WORK_SIZE:
oclHandles.error_str += "CL_INVALID_GLOBAL_WORK_SIZE";
break;
case CL_INVALID_WORK_GROUP_SIZE:
oclHandles.error_str += "CL_INVALID_WORK_GROUP_SIZE";
break;
case CL_INVALID_WORK_ITEM_SIZE:
oclHandles.error_str += "CL_INVALID_WORK_ITEM_SIZE";
break;
case CL_INVALID_GLOBAL_OFFSET:
oclHandles.error_str += "CL_INVALID_GLOBAL_OFFSET";
break;
case CL_OUT_OF_RESOURCES:
oclHandles.error_str += "CL_OUT_OF_RESOURCES";
break;
case CL_MEM_OBJECT_ALLOCATION_FAILURE:
oclHandles.error_str += "CL_MEM_OBJECT_ALLOCATION_FAILURE";
break;
case CL_INVALID_EVENT_WAIT_LIST:
oclHandles.error_str += "CL_INVALID_EVENT_WAIT_LIST";
break;
case CL_OUT_OF_HOST_MEMORY:
oclHandles.error_str += "CL_OUT_OF_HOST_MEMORY";
break;
default:
oclHandles.error_str += "Unkown reseason";
break;
}
if (oclHandles.cl_status != CL_SUCCESS)
throw(oclHandles.error_str);
#endif
//_clFinish();
/*oclHandles.cl_status = clWaitForEvents(1, &e[0]);
#ifdef ERRMSG
if (oclHandles.cl_status!= CL_SUCCESS)
throw(string("excpetion in _clEnqueueNDRange() -> clWaitForEvents"));
#endif*/
}
//--------------------------------------------------------
// release OpenCL objects
void _clFree(cl_mem ob) throw(string) {
if (ob != NULL)
oclHandles.cl_status = clReleaseMemObject(ob);
#ifdef ERRMSG
oclHandles.error_str = "excpetion in _clFree() ->";
switch (oclHandles.cl_status) {
case CL_INVALID_MEM_OBJECT:
oclHandles.error_str += "CL_INVALID_MEM_OBJECT";
break;
case CL_OUT_OF_RESOURCES:
oclHandles.error_str += "CL_OUT_OF_RESOURCES";
break;
case CL_OUT_OF_HOST_MEMORY:
oclHandles.error_str += "CL_OUT_OF_HOST_MEMORY";
break;
default:
oclHandles.error_str += "Unkown reseason";
break;
}
if (oclHandles.cl_status != CL_SUCCESS)
throw(oclHandles.error_str);
#endif
}
#endif //_CL_HELPER_
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