raistmer,
I think these limiting numbers would depend on the model of your gpu.Anyways we should always try to reduce the value of FCstack and GPR.
Originally posted by: himanshu.gautam raistmer,
I think these limiting numbers would depend on the model of your gpu.Anyways we should always try to reduce the value of FCstack and GPR.
I think "always" is a strong word here since there are cases where a reduction in registers would worsen performance.
Hi ryta1203,
Thanks for correcting. Indeed in some cases less GPR usage and FCStack value might degrade the performance. Therefore the best way is:
1. Go through the OpenCL Programming Guide before trying optimization.
2. Do performance checks of your code using ATI Stream Profiler and SKA to identify the best optimization strategy in your case depending on the bottlenecks in performance.
Refer to openCL programming guide.
The various factors and there limiting values are given with respect to hd5870.
They might clear your doubts.
thanks