func (this *kernel) GetInfo(param_name cl.CL_kernel_info) (interface{}, error) {
/* param data */
var param_value interface{}
var param_size cl.CL_size_t
var errCode cl.CL_int
/* Find size of param data */
if errCode = cl.CLGetKernelInfo(this.kernel_id, param_name, 0, nil, ¶m_size); errCode != cl.CL_SUCCESS {
return nil, fmt.Errorf("GetInfo failure with errcode_ret %d: %s", errCode, cl.ERROR_CODES_STRINGS[-errCode])
}
/* Access param data */
if errCode = cl.CLGetKernelInfo(this.kernel_id, param_name, param_size, ¶m_value, nil); errCode != cl.CL_SUCCESS {
return nil, fmt.Errorf("GetInfo failure with errcode_ret %d: %s", errCode, cl.ERROR_CODES_STRINGS[-errCode])
}
return param_value, nil
}
func TestKernel(t *testing.T) {
/* Host/device data structures */
var platform [1]cl.CL_platform_id
var device [1]cl.CL_device_id
var context cl.CL_context
var err cl.CL_int
/* Program data structures */
var program cl.CL_program
var program_buffer [1][]byte
var program_log interface{}
var program_size [1]cl.CL_size_t
var log_size cl.CL_size_t
var kernels []cl.CL_kernel
var found bool
var i, num_kernels cl.CL_uint
/* Access the first installed platform */
err = cl.CLGetPlatformIDs(1, platform[:], nil)
if err < 0 {
t.Errorf("Couldn't find any platforms")
}
/* Access the first GPU/CPU */
err = cl.CLGetDeviceIDs(platform[0], cl.CL_DEVICE_TYPE_GPU, 1, device[:], nil)
if err == cl.CL_DEVICE_NOT_FOUND {
err = cl.CLGetDeviceIDs(platform[0], cl.CL_DEVICE_TYPE_CPU, 1, device[:], nil)
}
if err < 0 {
t.Errorf("Couldn't find any devices")
}
/* Create a context */
context = cl.CLCreateContext(nil, 1, device[:], nil, nil, &err)
if err < 0 {
t.Errorf("Couldn't create a context")
}
/* Read each program file and place content into buffer array */
program_handle, err1 := os.Open("test.cl")
if err1 != nil {
t.Errorf("Couldn't find the program file")
}
defer program_handle.Close()
fi, err2 := program_handle.Stat()
if err2 != nil {
t.Errorf("Couldn't find the program stat")
}
program_size[0] = cl.CL_size_t(fi.Size())
program_buffer[0] = make([]byte, program_size[0])
read_size, err3 := program_handle.Read(program_buffer[0])
if err3 != nil || cl.CL_size_t(read_size) != program_size[0] {
t.Errorf("read file error or file size wrong")
}
/* Create a program containing all program content */
program = cl.CLCreateProgramWithSource(context, 1,
program_buffer[:], program_size[:], &err)
if err < 0 {
t.Errorf("Couldn't create the program")
}
/* Build program */
err = cl.CLBuildProgram(program, 1, device[:], nil, nil, nil)
if err < 0 {
/* Find size of log and print to std output */
cl.CLGetProgramBuildInfo(program, device[0], cl.CL_PROGRAM_BUILD_LOG,
0, nil, &log_size)
//program_log = (char*) malloc(log_size+1);
//program_log[log_size] = '\0';
cl.CLGetProgramBuildInfo(program, device[0], cl.CL_PROGRAM_BUILD_LOG,
log_size, &program_log, nil)
t.Errorf("%s\n", program_log)
//free(program_log);
}
/* Find out how many kernels are in the source file */
err = cl.CLCreateKernelsInProgram(program, 0, nil, &num_kernels)
if err < 0 {
t.Errorf("Couldn't find any kernels")
} else {
t.Logf("num_kernels = %d\n", num_kernels)
}
/* Create a kernel for each function */
kernels = make([]cl.CL_kernel, num_kernels)
err = cl.CLCreateKernelsInProgram(program, num_kernels, kernels, nil)
if err < 0 {
t.Errorf("Couldn't create kernels")
}
/* Search for the named kernel */
for i = 0; i < num_kernels; i++ {
var kernel_name_size cl.CL_size_t
var kernel_name interface{}
err = cl.CLGetKernelInfo(kernels[i], cl.CL_KERNEL_FUNCTION_NAME,
0, nil, &kernel_name_size)
if err < 0 {
t.Errorf("Couldn't get kernel size of name, errcode=%d\n", err)
}
err = cl.CLGetKernelInfo(kernels[i], cl.CL_KERNEL_FUNCTION_NAME,
kernel_name_size, &kernel_name, nil)
if err < 0 {
t.Errorf("Couldn't get kernel info of name, errcode=%d\n", err)
}
if kernel_name.(string) == "mult" {
found = true
t.Logf("Found mult kernel at index %d.\n", i)
break
}
}
if !found {
t.Errorf("Not found mult kernel\n")
}
for i = 0; i < num_kernels; i++ {
cl.CLReleaseKernel(kernels[i])
}
cl.CLReleaseProgram(program)
cl.CLReleaseContext(context)
}
