On Thu, Jul 3, 2025 at 2:25 PM Mark Adams <mfad...@lbl.gov> wrote: > I added a case to the SeqAIJ options switch: >
It looks like the local matrix is created by MatSetLocalToGlobalMapping(), so you cannot call MatSetOption() before that. You should probably put in a check if (a->A) here. Thanks, Matt > case MAT_COO_BLOCKED_ASSEMBLY: > A->coo_blocked_assembly = flg; > break; > > And added the flag for this to mat/tests/ex123* and when we have > '-mat_type is', I get matis calling *MatSetOption* with a NULL argument > (a->A) > > What is wrong here? Not being able to use blocked assembly for matis is > fine, but this is not a useful error message. > > x* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1 > frame #0: 0x0000000128c58223 libpetsc.3.023.dylib`PetscError(comm=0, > line=-1, func=0x0000000000000000, file="", n=PETSC_SUCCESS, > p=PETSC_ERROR_INITIAL, mess="*Null Pointer: Parameter # %d*") at err.c:387 > frame #1: 0x000000011fa3df99 > libpetsc.3.023.dylib`*MatSetOption(mat=0x0000000000000000, > op=MAT_COO_BLOCKED_ASSEMBLY, flg=PETSC_TRUE) a*t matrix.c:6048:3 > * frame #2: 0x000000011ebdcfef > libpetsc.3.023.dylib`MatSetOption_IS(A=0x0000621000004350, > op=MAT_COO_BLOCKED_ASSEMBLY, flg=PETSC_TRUE) at matis.c:3286:3 > frame #3: 0x000000011fa4a7e0 > libpetsc.3.023.dylib`MatSetOption(mat=0x0000621000004350, > op=MAT_COO_BLOCKED_ASSEMBLY, flg=PETSC_TRUE) at matrix.c:6127:3 > frame #4: 0x000000011fd87f66 > libpetsc.3.023.dylib`MatSetFromOptions(B=0x0000621000004350) at > gcreate.c:320:12 > frame #5: 0x00000001000039d3 ex123`main(argc=11, > args=0x000000030412d1f0) at ex123.c:44:3 > frame #6: 0x0000000200018530 dyld`start + 3056 > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://urldefense.us/v3/__https://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!Y7FVPyBD4utSlNmPo6u3Usp0JteK7FhlhlRO4G2luhVpQ5jMWf64Uevry1RMuDlGq4tarX6JlOWIpmdPEKWw$ <https://urldefense.us/v3/__http://www.cse.buffalo.edu/*knepley/__;fg!!G_uCfscf7eWS!Y7FVPyBD4utSlNmPo6u3Usp0JteK7FhlhlRO4G2luhVpQ5jMWf64Uevry1RMuDlGq4tarX6JlOWIpvplkzV2$ >