• 2022.2
  • 04/11/2022
  • Public Content

Debugging an OpenCL™ Application

Tutorial: Debugging with Intel® Distribution for GDB*
To debug OpenCL™ applications with Intel® Distribution for GDB*, make sure you use the following flags when calling the
  • -g -cl-opt-disable
    to enable the debug information and disable optimizations inside the kernel
  • -s <full_path_to_kernel.cl>
    to point to the kernel source file.
    This allows you to set a breakpoint in the following format:
    breakpoint kernel.cl:<line number>
Launch the debugger as follows:
gdb-oneapi <application>
To start debugging, you must set a pending breakpoint because the kernel source file is not known to the debugger yet:
set breakpoint pending on
break kernel.cl:<line number>
At runtime, the kernel sources are loaded to the debugger and the breakpoint is hit, both for CPU and GPU offloads.

Product and Performance Information


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