<div dir="ltr"><div dir="ltr">On Thu, Nov 11, 2021 at 3:00 AM Majid Rasouli <<a href="mailto:maj.rasouli@gmail.com">maj.rasouli@gmail.com</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear all,<div><br></div><div>I'm trying to find a brief explanation about the parallel (MPI) implementation of matrix-vector multiplication and matrix-matrix multiplication in PETSc. I have used them for some experiments for a research paper and I need to provide a brief explanation about the implementation of them. Is there a paper that I can read about that? If not, can anyone please help me find the source code that includes the implementation of those two functions?</div></div></blockquote><div><br></div><div>I think this describes our SpMV:</div><div><br></div><div> <a href="https://dl.acm.org/doi/abs/10.1145/3225058.3225100?casa_token=Pz_zMwXCoz8AAAAA%3AH8iNvXSY4opzDsJsEnoYVU0CccQjOK9pIH4Rs_Yb7a_ebchRpgAJ5GHoH2humWfkFYS54m2fO84s">https://dl.acm.org/doi/abs/10.1145/3225058.3225100?casa_token=Pz_zMwXCoz8AAAAA%3AH8iNvXSY4opzDsJsEnoYVU0CccQjOK9pIH4Rs_Yb7a_ebchRpgAJ5GHoH2humWfkFYS54m2fO84s</a></div><div><br></div><div>This paper describes the SpMM algorithms we use, and makes some notes on performance</div><div><br></div><div> <a href="https://epubs.siam.org/doi/abs/10.1137/15M1028807">https://epubs.siam.org/doi/abs/10.1137/15M1028807</a></div><div><br></div><div>but I could not find a paper on our implementation.</div><div><br></div><div> Thanks,</div><div><br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Thanks a lot,</div><div>Majid.</div></div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div><div><br></div><div><a href="http://www.cse.buffalo.edu/~knepley/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div></div></div></div>