CPU: turion ultra ZM-86 / 4GB
GPU: radeon HD 4570 / 512MB
Catalyst 13.1 for legacy GPU
linux kernel 3.2.43
I have a very weird problem while performing an 'iteration' over an openCL kernel:
when the program iterates over the kernel for more than 2 times, it makes the Xorg server crash.
I can run the program more than 2 times sequentially when it does not perform iteration
I can run the program in iteration mode when launching it from the console: the system is perfectly stable when Xorg is not running.
some minor remark here is that during kernel execution, Xorg also 'locks up': if you put a clock on the background before launching the program in non-iterative mode, it just keeps the time before launch until it finalizes, then the screen is redrawn.
Is there any way I can instruct the program to be less 'aggressive" with its resources? I already tried a clfinish at the end of each iteration to make sure I did not forgot any read / writes in the command queue, but that didn't help either.