xcode – 来自Apple的OpenCL的基本编程示例无法在GPU上运行

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;
}