<div dir="ltr"><div dir="ltr">I agreed, Barry.<div><br></div><div><div>A year ago, I enabled edge-weights and vertex weights for only ParMETIS and PTScotch. I did not do the same thing for Chaco, Party, etc.</div><div><br></div><div>It is straightforward to do that, and I could add an MR if needed.</div></div><div></div><div><br></div><div>Thanks,</div><div><br></div><div>Fande,</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Aug 30, 2020 at 4:20 PM Barry Smith <<a href="mailto:bsmith@petsc.dev">bsmith@petsc.dev</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div style="word-wrap:break-word;line-break:after-white-space"><div dir="auto" style="word-wrap:break-word;line-break:after-white-space"><br><div><br><blockquote type="cite"><div>On Aug 30, 2020, at 7:33 AM, Mark Adams <<a href="mailto:mfadams@lbl.gov" target="_blank">mfadams@lbl.gov</a>> wrote:</div><br><div><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><br><br></div><div><br></div><div>So, if ParMETIS gives different edge cut as it is expected, MatPartitioningGetUseEdgeWeights and MatPartitioningSetUseEdgeWeights works correctly. Why can't CHACO?</div></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><br></blockquote></div></blockquote><div><br></div><div>Chaco does not support using edge weights.</div></div></div></div></blockquote><div><br></div> The package interfaces that do not support edge weights should error if one requests partitioning with edge weights. Not everyone is born with the innate knowledge that the Chaco PETSc interface doesn't support edge weights.</div><div><br></div><div><br><blockquote type="cite"><div><div dir="ltr"><div class="gmail_quote"><div> </div></div></div>
</div></blockquote></div><a href="https://gitlab.com/petsc/petsc/-/merge_requests/3119" target="_blank">https://gitlab.com/petsc/petsc/-/merge_requests/3119</a></div></div></blockquote></div>