>> So far I've set the execmask to 1 active channel, I'm contemplating >> changing that >> though and using less machines. > Ah yes, I think that would indeed be desirable.
I'll look into it, though it's not that trivial, since you might have a 1x20x1 layout, also having to make sure each thread gets the correct system values. > >> >> Any ideas how to implement this in llvm? :-) 1024 CPU threads? > I suppose 1024 is really the minimum work size you have to support? > But since things are always run 4-wide (or 8-wide) that would "only" be > 256 (or 128) threads. That many threads sound a bit suboptimal to me > (unless you really have a boatload of cpu cores), but why not - I > suppose you can always pause some of the threads, not all need to be > active at the same time. > Though I wonder what the opencl-on-cpu guys do... pocl appears to spawn a number of threads and split the work out amongst them in the X direction. However I'm not seeing how they handle barriers, or if they handle them correctly at all. Dave. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
