<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Dear PETSc team:<div class=""><br class=""></div><div class="">A part of our code that has worked for years and previous versions is now failing with the latest version 3.17.1, on the KSP solve with the following error:</div><div class=""><br class=""></div><div class=""><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: Invalid argument<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: Block size 3 is incompatible with the indices: non consecutive indices 153055 153124<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: See <a href="https://fra01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpetsc.org%2Frelease%2Ffaq%2F&data=05%7C01%7CRandall.Mackie%40CGG.com%7C323fb230ca4f45d45c7408da2d18c44e%7C307ea68275e14701a1146c42f9ff0d24%7C0%7C0%7C637871881639501468%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3iAxFsi8wDXPcxKRBVFotn7DpoVNc9%2Fq60r%2F57nn7Lw%3D&reserved=0" style="color: rgb(5, 99, 193);" class="">https://petsc.org/release/faq/</a> for trouble shooting.<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: Petsc Release Version 3.17.1, Apr 28, 2022 <o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: ./test on a linux-gfortran-complex-debug named rmackie-VirtualBox by rmackie Tue May 3 08:12:15 2022<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: Configure options --with-clean=1 --with-scalar-type=complex --with-debugging=1 --with-fortran=1 --download-mpich=../external/mpich-4.0.1.tar.gz<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: #1 ISSetBlockSize() at /home/rmackie/PETSc/petsc-3.17.1/src/vec/is/is/interface/index.c:1898<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: #2 MatIncreaseOverlap() at /home/rmackie/PETSc/petsc-3.17.1/src/mat/interface/matrix.c:7086<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: #3 PCSetUp_ASM() at /home/rmackie/PETSc/petsc-3.17.1/src/ksp/pc/impls/asm/asm.c:238<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: #4 PCSetUp() at /home/rmackie/PETSc/petsc-3.17.1/src/ksp/pc/interface/precon.c:990<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: #5 KSPSetUp() at /home/rmackie/PETSc/petsc-3.17.1/src/ksp/ksp/interface/itfunc.c:407<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: #6 KSPSolve_Private() at /home/rmackie/PETSc/petsc-3.17.1/src/ksp/ksp/interface/itfunc.c:843<o:p class=""></o:p></div><div style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif;" class="">[0]PETSC ERROR: #7 KSPSolve() at /home/rmackie/PETSc/petsc-3.17.1/src/ksp/ksp/interface/itfunc.c:1078</div></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">I have a small test program with binary matrix and right hand side that will show the problem and I can send it as a zip file, please advise what email address to use or where to send it.</div><div class=""><br class=""></div><div class="">Thanks, </div><div class=""><br class=""></div><div class="">Randy M.</div></body></html>