search for: howtooptimizegemm

...gly, the BLIS implementation does not attempt at anticipating the fetch. It schedules the prefetch instruction right before the first load of a given interval. > Refs: > > [1] - http://www.cs.utexas.edu/users/flame/pubs/TOMS-BLIS-Analytical.pdf > [2] - http://wiki.cs.utexas.edu/rvdg/HowToOptimizeGemm > [3] - https://github.com/flame/blis/blob/master/kernels/x86_64/sandybridge/3/bli_gemm_int_d8x4.c >

...to make sure that micro-panel Br is loaded after micro-panel Ar (as required in [1] p. 11). For example, its using helps to reduce the execution time of the attached implementation. Refs: [1] - http://www.cs.utexas.edu/users/flame/pubs/TOMS-BLIS-Analytical.pdf [2] - http://wiki.cs.utexas.edu/rvdg/HowToOptimizeGemm [3] - https://github.com/flame/blis/blob/master/kernels/x86_64/sandybridge/3/bli_gemm_int_d8x4.c -- Cheers, Roman Gareev. -------------- next part -------------- A non-text attachment was scrubbed... Name: gemm_C_SIMD.c Type: text/x-csrc Size: 5697 bytes Desc:...

On 05/17/2016 01:47 PM, Michael Kruse wrote: > 2016-05-16 19:52 GMT+02:00 Roman Gareev <gareevroman at gmail.com>: >> Hi Tobias, >> >> could we use information about memory accesses of a SCoP statement and >> def-use chains to determine statements, which don’t contain matrix >> multiplication of the following form? > > Assuming s/don't/do you want

...That’s why we would probably get more than 0.088919 seconds mentioned above, if the multithreading were disabled (I’ve been using export OMP_THREAD_LIMIT=1 to limit the number of OMP threads. However, I haven’t found a way to avoid usual multithreading). Refs. [1] - http://wiki.cs.utexas.edu/rvdg/HowToOptimizeGemm [2] - http://www.cs.utexas.edu/users/flame/pubs/TOMS-BLIS-Analytical.pdf [3] - https://github.com/flame/blis/tree/master/kernels/x86_64/sandybridge/3 [4] - https://github.com/flame/blis/blob/master/kernels/x86_64/sandybridge/3/bli_gemm_int_d8x4.c [5] - https://github.com/flame/blis/blob/master/fram...