On Sun, Nov 12, 2017 at 11:35 PM, Xiangdong <[email protected]> wrote:
> Hello everyone, > > Can someone comment on the vectorization of PETSc? For example, for the > MatMult function, will it perform better or run faster if it is compiled > with avx2 or avx512? > There are no AVX instructions that I know of in PETSCc, but there are kernels from 3rd parties that are: 1) the 'hypre' AMG solver and 2) the new MKL sparse matrix class (wraps MKL, which is probably vectorized). > > Thank you. > > Best, > Xiangdong >
