• 12/19/2018
  • Public Content

Querying OpenCL™ Platform ID

The following example shows how to query the OpenCL platforms to get the platform ID:
cl_platform_id * platforms = NULL;         char vendor_name[128] = {0};         cl_uint num_platforms = 0; // get number of available platforms         cl_int err = clGetPlatformIDs(0, NULL, & num_platforms);         if (CL_SUCCESS != err)         {                 // handle error         }         platforms = (cl_platform_id*)malloc(                               sizeof(cl_platform)* num_platforms);         if (NULL == platforms)         {                 // handle error         }         err = clGetPlatformIDs(num_platforms, platforms, NULL);         if (CL_SUCCESS != err)         {                 // handle error         }         for (cl_uint ui=0; ui< num_platforms; ++ui)         {                 err = clGetPlatformInfo(platforms[ui],                               CL_PLATFORM_VENDOR,                               128 * sizeof(char),                               vendor_name,                               NULL);                 if (CL_SUCCESS != err)                 {                         // handle error                 }                 if (vendor_name != NULL)                 {                         if (!strcmp(vendor_name, "Intel(R) Corporation"))                         {                                 return platforms[ui];                         }                 }         }         // handle error

Product and Performance Information

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Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.