emuller

how many srX registers?

Discussion created by emuller on Dec 3, 2009

For a groupsize of 64, and 1 wavefront per SIMD (640 threads), I can write and read reliably from 8 sr registers per thread.  Beyond that, I get corruption.  Does this sound correct, or is it possibly my probelm?  What determines this maximum, and can I increase it by going into the ISA, for example ?

Thanks for any hints from the hardware gurus ...

cheers, e

 

 

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