Error CL_INVALID_PROGRAM_EXECUTABLE when calling clEnqueueNDRangeKernel

Question

I have built a library that calls many opencl kernels. All kernels pass the following:

-oclLoadProgSource
-clCreateProgramWithSource
-clBuildProgram
-clCreateKernel

The problem is, when I launch one of those kernels using clEnqueueNDRangeKernel, I get the following error : CL_INVALID_PROGRAM_EXECUTABLE

I know that:

• 5 other kernels have been successfully launched before.
• When I use the source code directly (not via the library), I do not face such problem at all, and everything works fine.

Answer 1

You should test the status returned by clBuildProgram. When it fails, get the compiler diagnostics with clGetProgramBuildInfo(...,CL_PROGRAM_BUILD_LOG,...).