1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
#pragma once
#ifndef _OPENCL_AUTO_h_
#define _OPENCL_AUTO_h_
#include <CL/cl.h>
#include <iostream>
// check the opencl status, if there is an error, return the error type and exit
#define CHECK_STATUS( status )
if ( status != CL_SUCCESS ) {
fprintf( stderr, "OpenCL error in file %s line %d, error code %sn", __FILE__, __LINE__,
opencl_error_to_str( status ) );
exit(-1);
}
#define CASE_CL_ERROR( NAME )
case NAME: return #NAME;
const char* opencl_error_to_str( cl_int error ) {
switch ( error ) {
// error codes
CASE_CL_ERROR( CL_SUCCESS )
CASE_CL_ERROR( CL_DEVICE_NOT_FOUND )
CASE_CL_ERROR( CL_DEVICE_NOT_AVAILABLE )
CASE_CL_ERROR( CL_COMPILER_NOT_AVAILABLE )
CASE_CL_ERROR( CL_MEM_OBJECT_ALLOCATION_FAILURE )
CASE_CL_ERROR( CL_OUT_OF_RESOURCES )
CASE_CL_ERROR( CL_OUT_OF_HOST_MEMORY )
CASE_CL_ERROR( CL_PROFILING_INFO_NOT_AVAILABLE )
CASE_CL_ERROR( CL_MEM_COPY_OVERLAP )
CASE_CL_ERROR( CL_IMAGE_FORMAT_MISMATCH )
CASE_CL_ERROR( CL_IMAGE_FORMAT_NOT_SUPPORTED )
CASE_CL_ERROR( CL_BUILD_PROGRAM_FAILURE )
CASE_CL_ERROR( CL_MAP_FAILURE )
CASE_CL_ERROR( CL_MISALIGNED_SUB_BUFFER_OFFSET )
CASE_CL_ERROR( CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST )
CASE_CL_ERROR( CL_COMPILE_PROGRAM_FAILURE )
CASE_CL_ERROR( CL_LINKER_NOT_AVAILABLE )
CASE_CL_ERROR( CL_LINK_PROGRAM_FAILURE )
CASE_CL_ERROR( CL_DEVICE_PARTITION_FAILED )
CASE_CL_ERROR( CL_KERNEL_ARG_INFO_NOT_AVAILABLE )
CASE_CL_ERROR( CL_INVALID_VALUE )
CASE_CL_ERROR( CL_INVALID_DEVICE_TYPE )
CASE_CL_ERROR( CL_INVALID_PLATFORM )
CASE_CL_ERROR( CL_INVALID_DEVICE )
CASE_CL_ERROR( CL_INVALID_CONTEXT )
CASE_CL_ERROR( CL_INVALID_QUEUE_PROPERTIES )
CASE_CL_ERROR( CL_INVALID_COMMAND_QUEUE )
CASE_CL_ERROR( CL_INVALID_HOST_PTR )
CASE_CL_ERROR( CL_INVALID_MEM_OBJECT )
CASE_CL_ERROR( CL_INVALID_IMAGE_FORMAT_DESCRIPTOR )
CASE_CL_ERROR( CL_INVALID_IMAGE_SIZE )
CASE_CL_ERROR( CL_INVALID_SAMPLER )
CASE_CL_ERROR( CL_INVALID_BINARY )
CASE_CL_ERROR( CL_INVALID_BUILD_OPTIONS )
CASE_CL_ERROR( CL_INVALID_PROGRAM )
CASE_CL_ERROR( CL_INVALID_PROGRAM_EXECUTABLE )
CASE_CL_ERROR( CL_INVALID_KERNEL_NAME )
CASE_CL_ERROR( CL_INVALID_KERNEL_DEFINITION )
CASE_CL_ERROR( CL_INVALID_KERNEL )
CASE_CL_ERROR( CL_INVALID_ARG_INDEX )
CASE_CL_ERROR( CL_INVALID_ARG_VALUE )
CASE_CL_ERROR( CL_INVALID_ARG_SIZE )
CASE_CL_ERROR( CL_INVALID_KERNEL_ARGS )
CASE_CL_ERROR( CL_INVALID_WORK_DIMENSION )
CASE_CL_ERROR( CL_INVALID_WORK_GROUP_SIZE )
CASE_CL_ERROR( CL_INVALID_WORK_ITEM_SIZE )
CASE_CL_ERROR( CL_INVALID_GLOBAL_OFFSET )
CASE_CL_ERROR( CL_INVALID_EVENT_WAIT_LIST )
CASE_CL_ERROR( CL_INVALID_EVENT )
CASE_CL_ERROR( CL_INVALID_OPERATION )
CASE_CL_ERROR( CL_INVALID_GL_OBJECT )
CASE_CL_ERROR( CL_INVALID_BUFFER_SIZE )
CASE_CL_ERROR( CL_INVALID_MIP_LEVEL )
CASE_CL_ERROR( CL_INVALID_GLOBAL_WORK_SIZE )
CASE_CL_ERROR( CL_INVALID_PROPERTY )
CASE_CL_ERROR( CL_INVALID_IMAGE_DESCRIPTOR )
CASE_CL_ERROR( CL_INVALID_COMPILER_OPTIONS )
CASE_CL_ERROR( CL_INVALID_LINKER_OPTIONS )
CASE_CL_ERROR( CL_INVALID_DEVICE_PARTITION_COUNT )
CASE_CL_ERROR( CL_INVALID_PIPE_SIZE )
CASE_CL_ERROR( CL_INVALID_DEVICE_QUEUE )
default: return "UNKNOWN ERROR CODE";
}
}
struct openclStruct {
private:
cl_platform_id clPlatform;
cl_device_id clDevice;
cl_context clContext;
cl_command_queue clCmdQueue;
cl_program clProgram;
char* clFilePath;
char* readFile(); // read the kernel source code to a char*
public:
cl_int clStatus;
cl_context& getContext() { return clContext; }
cl_command_queue& getCommandQueue() { return clCmdQueue; }
cl_program& getProgram() { return clProgram; }
cl_kernel createKernel( char* kernelName ); // create the kernel
cl_mem createMem( cl_mem_flags clMemType, size_t dataSize );
openclStruct( char* filePath ); // filePatth is the path of the kernel file, init the opencl and get a --GPU-- device
~openclStruct();
};
openclStruct::openclStruct( char* filePath ) {
clFilePath = filePath;
clStatus = clGetPlatformIDs( 1, &clPlatform, NULL );
CHECK_STATUS( clStatus );
clStatus = clGetDeviceIDs( clPlatform, CL_DEVICE_TYPE_GPU, 1, &clDevice,
NULL ); // if want to return other type device, change the CL_DEVICE_TYPE_GPU
CHECK_STATUS( clStatus );
clContext = clCreateContext( 0, 1, &clDevice, NULL, NULL, &clStatus );
CHECK_STATUS( clStatus );
clCmdQueue = clCreateCommandQueueWithProperties( clContext, clDevice, 0, &clStatus );
CHECK_STATUS( clStatus );
const char* programSource = readFile();
size_t sourceSize[] = {strlen( programSource )};
clProgram = clCreateProgramWithSource( clContext, 1, &programSource, sourceSize, &clStatus );
CHECK_STATUS( clStatus );
clStatus = clBuildProgram( clProgram, 1, &clDevice, NULL, NULL, NULL );
// if build program failed, print the log
if ( clStatus != CL_SUCCESS ) {
size_t len;
char buffer[8 * 1024];
clGetProgramBuildInfo( clProgram, clDevice, CL_PROGRAM_BUILD_LOG, sizeof( buffer ), buffer, &len );
printf( "%sn", buffer );
exit(-1);
}
}
openclStruct::~openclStruct() {
clReleaseProgram( clProgram );
clReleaseCommandQueue( clCmdQueue );
clReleaseContext( clContext );
}
cl_kernel openclStruct::createKernel( char* kernelName ) {
cl_kernel clKernel = clCreateKernel( clProgram, kernelName, &clStatus );
CHECK_STATUS( clStatus );
return clKernel;
}
cl_mem openclStruct::createMem( cl_mem_flags clMemType, size_t dataSize ) {
cl_mem bufTemp = clCreateBuffer( clContext, clMemType, dataSize, NULL, &clStatus );
CHECK_STATUS( clStatus );
return bufTemp;
}
char* openclStruct::readFile() {
FILE* fp;
char* fileData;
fp = fopen( clFilePath, "rb" );
if ( !fp ) {
std::cout << "Could not open the file" << std::endl;
exit( -1 );
}
if ( fseek( fp, 0, SEEK_END ) ) {
std::cout << "Error read the file" << std::endl;
exit( -1 );
}
long fileSize = ftell( fp );
if ( fileSize < 0 ) {
std::cout << "Error read the file" << std::endl;
exit( -1 );
}
if ( fseek( fp, 0, SEEK_SET ) ) {
std::cout << "Error read the file" << std::endl;
exit( -1 );
}
fileData = (char*)malloc( fileSize + 1 );
fileData[fileSize] = '
|
近期评论