HelloWorld errors

Hello everyone, my name is Dani and here is my first OpenCL program.
I have visual studio 2010, installed Instel SDK for Visual Studio and nvidia toolkit v3.2

After debugging i have some errors and warning:

Error 1 error CL: Failed to create context for Intel OpenCL Intel CPU device… C:\Users\Usuario\Desktop\OpenCL\HW\OpenCLProject1\OpenCLProject1\hello.cl 1 1 OpenCLProject1

Error 2 error MSB3721: El comando ““C:\Program Files (x86)\Intel\OpenCL SDK\3.0\bin\x86\ioc32.exe” -cmd=build -input=“C:\Users\Usuario\Desktop\OpenCL\HW\OpenCLProject1\OpenCLProject1\hello.cl” -output=“Release\hello.out” -VS -device=CPU -simd=default -bo=” ""return the code -1. C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\BuildCustomizations\IntelOpenCL.targets 70 6 OpenCLProject1

Here the code from hello.cpp

#include <stdio.h>
#include <stdlib.h>

#ifdef APPLE
#include <OpenCL/opencl.h>
#else
#include <CL/cl.h>
#endif

#define MEM_SIZE (128)
#define MAX_SOURCE_SIZE (0x100000)

int main()
{
cl_device_id device_id = NULL;
cl_context context = NULL;
cl_command_queue command_queue = NULL;
cl_mem memobj = NULL;
cl_program program = NULL;
cl_kernel kernel = NULL;
cl_platform_id platform_id = NULL;
cl_uint ret_num_devices;
cl_uint ret_num_platforms;
cl_int ret;

char string[MEM_SIZE];

FILE *fp;
char fileName[] = “./hello.cl”;
char *source_str;
size_t source_size;

/* Load the source code containing the kernel*/
fp = fopen(fileName, “r”);
if (!fp) {
fprintf(stderr, "Failed to load kernel.
");
exit(1);
}
source_str = (char*)malloc(MAX_SOURCE_SIZE);
source_size = fread(source_str, 1, MAX_SOURCE_SIZE, fp);
fclose(fp);

/* Get Platform and Device Info */
ret = clGetPlatformIDs(1, &platform_id, &ret_num_platforms);
ret = clGetDeviceIDs(platform_id, CL_DEVICE_TYPE_DEFAULT, 1, &device_id, &ret_num_devices);

/* Create OpenCL context */
context = clCreateContext(NULL, 1, &device_id, NULL, NULL, &ret);

/* Create Command Queue */
command_queue = clCreateCommandQueue(context, device_id, 0, &ret);

/* Create Memory Buffer */
memobj = clCreateBuffer(context, CL_MEM_READ_WRITE,MEM_SIZE * sizeof(char), NULL, &ret);

/* Create Kernel Program from the source */
program = clCreateProgramWithSource(context, 1, (const char **)&source_str,
(const size_t *)&source_size, &ret);

/* Build Kernel Program */
ret = clBuildProgram(program, 1, &device_id, NULL, NULL, NULL);

/* Create OpenCL Kernel */
kernel = clCreateKernel(program, “hello”, &ret);

/* Set OpenCL Kernel Parameters */
ret = clSetKernelArg(kernel, 0, sizeof(cl_mem), (void *)&memobj);

/* Execute OpenCL Kernel */
ret = clEnqueueTask(command_queue, kernel, 0, NULL,NULL);

/* Copy results from the memory buffer */
ret = clEnqueueReadBuffer(command_queue, memobj, CL_TRUE, 0,
MEM_SIZE * sizeof(char),string, 0, NULL, NULL);

/* Display Result */
puts(string);

/* Finalization */
ret = clFlush(command_queue);
ret = clFinish(command_queue);
ret = clReleaseKernel(kernel);
ret = clReleaseProgram(program);
ret = clReleaseMemObject(memobj);
ret = clReleaseCommandQueue(command_queue);
ret = clReleaseContext(context);

free(source_str);

return 0;
}

and here from hello.cl

// TODO: Add OpenCL kernel code here.
__kernel void hello(__global char* string)
{
string[0] = ‘H’;
string[1] = ‘e’;
string[2] = ‘l’;
string[3] = ‘l’;
string[4] = ‘o’;
string[5] = ‘,’;
string[6] = ’ ';
string[7] = ‘W’;
string[8] = ‘o’;
string[9] = ‘r’;
string[10] = ‘l’;
string[11] = ‘d’;
string[12] = ‘!’;
string[13] = ‘\0’;
}

Some idea?

How do you obtain the error text about context creation? I don’t see you checking the value of “ret” anywhere.

I fix both errors,Im gonna explain what i had to do.

First, I removed from “OpenCL Files” in visual studio, my .cl file.

Then i updated the dll package of visual studio

Finally i configured properly the c/c++ and the linker, inside the solution properties .

I had some problems with x64 and x32 compatibility in visual studio, i had to fix it too.

Thanks u all for the attention, greetings!