Build error -11, but no code output for bug hints

[Dark_Photon]

@Tobias83

I use the OpenCL cpp wrapper and I get build error -11, when I want to build the kernel code.

Ok, so NVIDIA GeForce GT 730M with 470.182.03 NVIDIA drivers on Linux.

From former tries, the kernel code must be OK.

Until you know what’s causing this, I wouldn’t assume that.

• From CL/cl.h:

  #define CL_BUILD_PROGRAM_FAILURE                    -11
  

• OpenCL 3.0 API Spec

  Error Code	Brief Description
  CL_BUILD_PROGRAM_FAILURE	Returned when clBuildProgram failed to build the specified program
  …

  • CL_BUILD_PROGRAM_FAILURE if there is a failure to build the program executable. This error will be returned if clBuildProgram does not return until the build has completed.

Have you searched for other posts where folks are getting this?

• exponential on input value causes CL_BUILD_PROGRAM_FAILURE
• opencl build error..!!
• Error : CL_BUILD_PROGRAM_FAILURE, the source code seems ok
• Run-time error in clBuildProgram(-11)
• Program Build Error
• clBuildProgram() function error...!!
• Error : CL_BUILD_PROGRAM_FAILURE, the source code seems ok
• CL_BUILD_PROGRAM_FAILURE but Build Log empty
• CL_BUILD_PROGRAM_FAILURE with valid kernel code?
• opencl internal error on build

Also potentially useful:

• Please help with CL_LINK_PROGRAM_FAILURE error with clLinkProgram of library - #7 by devent

Sounds like CL_BUILD_PROGRAM_FAILURE is roughly the equivalent of an internal compiler error. This might be instigated by your kernel source being incorrect.

Some things to check:

• Update to the latest graphics drivers (from the NVIDIA download site, looks like you’ve got the latest for that GeForce GT 730)
• Independently verify that the CL kernel source you’re providing is valid (use another compiler that’ll give you better syntax error reporting).
• Check to verify that you’re not using any features in your kernel that are unsupported by your GPU+drivers.
• “Try commenting the code of the kernel and seeing if compile. If it happens, there is a kernel code error, with CL_PROGRAM_BUILD_STATUS flag in clGetProgramBuildInfo you can check where is the problem.” (from @santtt)
• Post your kernel source. Someone here might be able to spot the error that your OpenCL compiler can’t.