5 ms·
It wouldn't because as you say the ALUs are the same, it just would change the unit that the warp scheduler deals with (and relevant changes to kernel occupancy
by jhj 10y ago
It wouldn't because as you say the ALUs are the same, it just would change the unit that the warp scheduler deals with (and relevant changes to kernel occupancy that it would entail).
- paulmd 10y agoUnless you halve the precision going into the ALU (FP16 vs FP32), of course...
- jhj 10y agothe warp scheduler can dual-issue instructions; it has to because otherwise 192 fp32 alus can't be used by the 4 warp schedulers (4 x 32) effectively. increased ipc can do this for you. this was maxwell though; the ratio of resources to schedulers to sm has changed a lot in pascal. look up "dual-issue": http://on-demand.gputechconf.com/gtc/2013/presentations/S3466-Programming-Guidelines-GPU-Architecture.pdf http://on-demand.gputechconf.com/gtc/2013/presentations/S346...