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clBuildProgram performance?

Question asked by likewind on May 31, 2013
Latest reply on Mar 25, 2014 by roger512

I have a problem similar to this topic clBuildProgram performance and limits?

 

I'm trying to compile OpenCL program on my 7850. It is strange that clBuildProgram takes 100s ms.When I using graphic card of other brands, it  only takes 1-2 ms.

 

Is this normal? Or did I use it in a wrong way?

 

cl_program program = clCreateProgramWithSource(cl_gpu_context_,1,(const char **)&ptr_program_source,&program_length,&cl_error_num);
if(cl_error_num != CL_SUCCESS)
{
   return cl_error_num;
}

 

cl_error_num = clBuildProgram(program,0,NULL,ptr_build_option,NULL,NULL);

 

 

My environment:

OS: Win7 64bits

SDK:AMD-APP-SDK-v2.8

Graphic card: AMD Radeon HD 7850

 

Thanks~

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