我刚开始学习一些关于OpenCL的基础知识,并决定从苹果公司获得
“Basic programming sample”.我在cpu上运行正常,但是当我选择GPU作为目标设备时,我得到err = -45
err = gclExecKernelAPPLE(k,ndrange,& kargs);
此错误代码转换为CL_INVALID_PROGRAM_EXECUTABLE.知道如何更正示例代码？
自动生成的kernel.cl.c代码如下所示(包含在顶部)：
static void initBlocks(void);
// Initialize static data structures
static block_kernel_pair pair_map[1] = {
{ NULL,NULL }
};
static block_kernel_map bmap = { 0,1,initBlocks,pair_map };
// Block function
void (^square_kernel)(const cl_ndrange *ndrange,cl_float* input,cl_float* output) =
^(const cl_ndrange *ndrange,cl_float* output) {
int err = 0;
cl_kernel k = bmap.map[0].kernel;
if (!k) {
initBlocks();
k = bmap.map[0].kernel;
}
if (!k)
gcl_log_fatal("kernel square does not exist for device");
kargs_struct kargs;
gclCreateArgsAPPLE(k,&kargs);
err |= gclSetKernelArgMemAPPLE(k,input,output,&kargs);
gcl_log_cl_fatal(err,"setting argument for square Failed");
err = gclExecKernelAPPLE(k,&kargs);
gcl_log_cl_fatal(err,"Executing square Failed");
gclDeleteArgsAPPLE(k,&kargs);
};
// Initialization functions
static void initBlocks(void) {
const char* build_opts = " -cl-std=CL1.1";
static dispatch_once_t once;
dispatch_once(&once,^{ int err = gclBuildProgramBinaryAPPLE("OpenCL/kernel.cl","",&bmap,build_opts);
if (!err) {
assert(bmap.map[0].block_ptr == square_kernel && "mismatch block");
bmap.map[0].kernel = clCreateKernel(bmap.program,"square",&err);
}
});
}
__attribute__((constructor))
static void RegisterMap(void) {
gclRegisterBlockKernelMap(&bmap);
bmap.map[0].block_ptr = square_kernel;
}