System and method for debugging an executing general-purpose computing on graphics processing units (GPGPU) application

A system comprising:

• a processor;
• and
• memory coupled to said processor and comprising instructions that, when executed by said processor, cause the processor to perform a method of debugging an executing program, wherein the instructions comprise:
• a CPU attachment module operable to attach to an executing CPU portion of a general-purpose computing on graphics processing units (GPGPU) program;
• a program modification module operable to modify execution of said CPU portion of said GPGPU program;
• an execution control module operable to control execution of said CPU portion of said GPGPU program and a GPU portion of said GPGPU program;
• and
• a GPU access module operable to access GPU state information corresponding to said GPU portion of said GPGPU program.

A computer implemented method for debugging a general-purpose computing on graphics processing units (GPGPU) program, said method comprising:

• receiving a request to detach a debugging program from said GPGPU program, wherein a first portion of said GPGPU program executed in a central processing unit (CPU), wherein a second portion of a said GPGPU is executed on a graphics processing unit (GPU), and wherein said debugging program is attached to said first portion and configured to modify said first portion;
• sending a signal to said GPGPU program;
• resuming execution of said GPGPU program;
• and
• in response to said signal said GPGPU program closes a communication channel with a debugging application.