<html><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><div class="AppleOriginalContents"><blockquote type="cite"><div><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 18px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div><div><div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;"><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><o:p></o:p></div></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">If I pass 0 2 4 to the big matrix I expect the wrong result. If I skip the part in the construction of my IS where<o:p></o:p></div></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">1 3 7 gets converted to 0 2 4 it works without redistribute.<o:p></o:p></div></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">I’m using MatZeroRowsColumns in all cases yes.<o:p></o:p></div></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div><div><div style="border-width: 1pt medium medium; border-style: solid none none; padding: 3pt 0cm 0cm; border-color: currentcolor; border-image: none;"><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><b>From:</b><span class="apple-converted-space"> </span>Barry Smith <<a href="mailto:bsmith@petsc.dev" style="color: blue; text-decoration: underline;">bsmith@petsc.dev</a>><span class="apple-converted-space"> </span><br><b>Sent:</b><span class="apple-converted-space"> </span>Wednesday, April 26, 2023 4:47 PM<br><b>To:</b><span class="apple-converted-space"> </span>Carl-Johan Thore <<a href="mailto:carl-johan.thore@liu.se" style="color: blue; text-decoration: underline;">carl-johan.thore@liu.se</a>><br><b>Cc:</b><span class="apple-converted-space"> </span>PETSc <<a href="mailto:petsc-users@mcs.anl.gov" style="color: blue; text-decoration: underline;">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span class="apple-converted-space"> </span>Re: [petsc-users] Fieldsplit with redistribute<o:p></o:p></div></div></div></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><br><br><br><o:p></o:p></div></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;"><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">On Apr 26, 2023, at 10:32 AM, Carl-Johan Thore <<a href="mailto:carl-johan.thore@liu.se" style="color: blue; text-decoration: underline;">carl-johan.thore@liu.se</a>> wrote:<o:p></o:p></div></div></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">One 1 core there is no errors, but the solution to the linear system is wrong as expected.<o:p></o:p></div></div></div></div></blockquote><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> Why is it expect to be wrong? Are you still using the MatZeroRowsColumns()? You should.<o:p></o:p></div></div></div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><br><br><br><o:p></o:p></div></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;"><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">On 2 cores I get this:<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="SV">[0]ISdata: min= 139, max= 6292, freeudofs= 4459. min= 0, max= 6292, freedofs= 6293: row 2629</span><o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="SV">[1]ISdata: min= 6301, max=10639, freeudofs= 3244. min= 6293, max=10639, freedofs= 4347: row 2629</span><o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: Argument out of range<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: Index 0's value 6301 is smaller than minimum given 19845<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: See<span class="apple-converted-space"> </span><a href="https://petsc.org/release/faq/" style="color: blue; text-decoration: underline;">https://petsc.org/release/faq/</a><span class="apple-converted-space"> </span>for trouble shooting.<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: Petsc Development GIT revision: v3.19.0-236-gee39b84cc03 GIT Date: 2023-04-23 18:43:23 -0400<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: topopt on a arch-linux-c-debug named win01705 by carlthore Wed Apr 26 16:26:24 2023<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: Configure options -f --with-cuda --with-cusp --download-scalapack --download-hdf5 --download-zlib --download-mumps --download-parmetis --download-metis --download-ptscotch --download-hypre --download-spai<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: #1 ISComplement() at /mnt/c/mathware/petsc/src/vec/is/is/utils/iscoloring.c:803<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: #2 PCFieldSplitSetDefaults() at /mnt/c/mathware/petsc/src/ksp/pc/impls/fieldsplit/fieldsplit.c:544<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: #3 PCSetUp_FieldSplit() at /mnt/c/mathware/petsc/src/ksp/pc/impls/fieldsplit/fieldsplit.c:587<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: #4 PCSetUp() at /mnt/c/mathware/petsc/src/ksp/pc/interface/precon.c:994<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: #5 KSPSetUp() at /mnt/c/mathware/petsc/src/ksp/ksp/interface/itfunc.c:406<o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[1]PETSC ERROR: #6 SetUpSolver() at /mnt/c/TOPet/fts_topopt_in_petsc-master/<a href="http://mixedstokes.cc:2650/" style="color: blue; text-decoration: underline;">MixedStokes.cc:2650</a><o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div><div><div style="border-width: 1pt medium medium; border-style: solid none none; padding: 3pt 0cm 0cm; border-color: currentcolor; border-image: none;"><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><b>From:</b><span class="apple-converted-space"> </span>Barry Smith <<a href="mailto:bsmith@petsc.dev" style="color: blue; text-decoration: underline;">bsmith@petsc.dev</a>><span class="apple-converted-space"> </span><br><b>Sent:</b><span class="apple-converted-space"> </span>Wednesday, April 26, 2023 4:11 PM<br><b>To:</b><span class="apple-converted-space"> </span>Carl-Johan Thore <<a href="mailto:carl-johan.thore@liu.se" style="color: blue; text-decoration: underline;">carl-johan.thore@liu.se</a>><br><b>Cc:</b><span class="apple-converted-space"> </span>PETSc <<a href="mailto:petsc-users@mcs.anl.gov" style="color: blue; text-decoration: underline;">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span class="apple-converted-space"> </span>Re: [petsc-users] Fieldsplit with redistribute<o:p></o:p></div></div></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> What happens if you pass in your IS using directly PCFIELDSPLIT and not using PCREDISTRIBUTE? <o:p></o:p></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><br><br><br><br><o:p></o:p></div></div></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;"><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">On Apr 26, 2023, at 2:27 AM, Carl-Johan Thore <<a href="mailto:carl-johan.thore@liu.se" style="color: blue; text-decoration: underline;">carl-johan.thore@liu.se</a>> wrote:<o:p></o:p></div></div></div></div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">Hi again,<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">I now think I got my IS in order (it’s just one IS because unlike in your ex84.c I don’t provide the complement of the IS explicitly but let fieldsplit compute it, but ex84.c works fine if I do the same there).<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">As before, my code works with pcredistribute and pcfieldsplit on 1 core. I then try<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">with 2 cores. First I check the IS in Matlab, and it looks fine as far as I can tell, with identical content<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">as in the 1-core case, which it should?. Then I try running the code, but it fails with (the first two lines are mine)<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">“<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="SV">[1]ISdata: min= 6301, max=10639, freeudofs= 3244. min= 6293, max=10639, freedofs= 4347: row 2629</span><o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><span lang="SV">[0]ISdata: min= 139, max= 6292, freeudofs= 4459. min= 0, max= 6292, freedofs= 6293: row 2629</span><o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: Argument out of range<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: Index 3748's value 5320 is larger than maximum given 5320<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: See<span class="apple-converted-space"> </span><a href="https://petsc.org/release/faq/" style="color: blue; text-decoration: underline;">https://petsc.org/release/faq/</a><span class="apple-converted-space"> </span>for trouble shooting.<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: Petsc Development GIT revision: v3.19.0-236-gee39b84cc03 GIT Date: 2023-04-23 18:43:23 -0400<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: topopt on a arch-linux-c-debug named win01705 by carlthore Wed Apr 26 08:01:49 2023<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: Configure options -f --with-cuda --with-cusp --download-scalapack --download-hdf5 --download-zlib --download-mumps --download-parmetis --download-metis --download-ptscotch --download-hypre --download-spai<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: #1 ISComplement() at /mnt/c/mathware/petsc/src/vec/is/is/utils/iscoloring.c:804<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: #2 PCFieldSplitSetDefaults() at /mnt/c/mathware/petsc/src/ksp/pc/impls/fieldsplit/fieldsplit.c:544<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: #3 PCSetUp_FieldSplit() at /mnt/c/mathware/petsc/src/ksp/pc/impls/fieldsplit/fieldsplit.c:587<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: #4 PCSetUp() at /mnt/c/mathware/petsc/src/ksp/pc/interface/precon.c:994<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: #5 KSPSetUp() at /mnt/c/mathware/petsc/src/ksp/ksp/interface/itfunc.c:406<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: #6 PCSetUp_Redistribute() at /mnt/c/mathware/petsc/src/ksp/pc/impls/redistribute/redistribute.c:327<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: #7 PCSetUp() at /mnt/c/mathware/petsc/src/ksp/pc/interface/precon.c:994<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: #8 KSPSetUp() at /mnt/c/mathware/petsc/src/ksp/ksp/interface/itfunc.c:406<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">[0]PETSC ERROR: #9 SetUpSolver() at /mnt/c/TOPet/fts_topopt_in_petsc-master/<a href="http://mixedstokes.cc:2650/" style="color: blue; text-decoration: underline;">MixedStokes.cc:2650</a><o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">“<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">This is all the errors I see, I’m not sure why the error message is not written out in full. I guess the error is on<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">my side, with the IS still not being constructed correctly, but what do you think?<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">Kind regards,<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">Carl-Johan<o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div style="border-width: 1pt medium medium; border-style: solid none none; padding: 3pt 0cm 0cm; border-color: currentcolor; border-image: none;"><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><b>From:</b><span class="apple-converted-space"> </span>Barry Smith <<a href="mailto:bsmith@petsc.dev" style="color: blue; text-decoration: underline;">bsmith@petsc.dev</a>><span class="apple-converted-space"> </span><br><b>Sent:</b><span class="apple-converted-space"> </span>Monday, April 24, 2023 8:27 PM<br><b>To:</b><span class="apple-converted-space"> </span>Carl-Johan Thore <<a href="mailto:carl-johan.thore@liu.se" style="color: blue; text-decoration: underline;">carl-johan.thore@liu.se</a>><br><b>Cc:</b><span class="apple-converted-space"> </span>PETSc <<a href="mailto:petsc-users@mcs.anl.gov" style="color: blue; text-decoration: underline;">petsc-users@mcs.anl.gov</a>><br><b>Subject:</b><span class="apple-converted-space"> </span>Re: [petsc-users] Fieldsplit with redistribute<o:p></o:p></div></div></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> PCREDISTRIBUTE looks like it is not yet GPU friendly. This needs to be fixed, but it should be a separate fix and MR from my current one. <o:p></o:p></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> Please just check if the PCREDISTRIBUTE followed by PCFIELDSPLIT just works on CPUs for your code.<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> Barry<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><br><br><br><br><br><o:p></o:p></div></div></div></div><blockquote style="margin-top: 5pt; margin-bottom: 5pt;"><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">On Apr 24, 2023, at 2:23 PM, Carl-Johan Thore <<a href="mailto:carl-johan.thore@liu.se" style="color: blue; text-decoration: underline;">carl-johan.thore@liu.se</a>> wrote:<o:p></o:p></div></div></div></div></div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div><div><div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">I wasn’t sure if I was going to bother you again with this, but since it looks like you plan to merge this with the<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">main branch (?) I thought it might be interesting to know that I’ve tried this with my code running with CUDA but got the<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">attached error. I suspect it’s related to the RHS red->b but I’m not sure. If I switch of redistribute my code runs fine<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">with CUDA.<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">Kind regards,<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">Carl-Johan<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div><div><div style="border-width: 1pt medium medium; border-style: solid none none; padding: 3pt 0cm 0cm; border-image: none; border-color: currentcolor;"><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"><b>From:</b><span class="xapple-converted-space"> </span>Carl-Johan Thore<span class="xapple-converted-space"> </span><br><b>Sent:</b><span class="xapple-converted-space"> </span>Monday, April 24, 2023 5:08 PM<br><b>To:</b><span class="xapple-converted-space"> </span>Barry Smith <<a href="mailto:bsmith@petsc.dev" style="color: blue; text-decoration: underline;">bsmith@petsc.dev</a>><br><b>Subject:</b><span class="xapple-converted-space"> </span>RE: [petsc-users] Fieldsplit with redistribute<o:p></o:p></div></div></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">Ok, that worked great with my code on 1 core! (I haven’t been able to try the multi-core case yet due to issues with my own code<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">mentioned below)<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">I’m not sure if you forgot to remove the freeing of the map object<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;">outside or if I messed up with the pull somehow, but I had to outcomment that line manually:<o:p></o:p></div></div></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"> <o:p></o:p></div></div></div></div></div></div></div></blockquote></div></div></div><div><div><div><div><div style="margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif;"></div></div></div></div></div></div></blockquote></div></div></blockquote></div></div></blockquote></div></div></div></div></div></blockquote></div></body></html>