> On Feb 8, 2017, at 11:39 PM, Dave May <dave.mayhe...@gmail.com> wrote: > > Any time you modify one of the submats, you need to call assembly begin/end > on that sub matrix AND on the outer matnest object.
Weird, and prone to errors it seems to me. Perhaps this needs to be rethought > > Thanks, > Dave > > > On Wed, 8 Feb 2017 at 22:51, Manav Bhatia <bhatiama...@gmail.com> wrote: > aha.. that might be it. > > Does that need to be called for the global matrix after each assembly of the > Jacobian blocks, or just once for the whole matrix? > > -Manav > > > On Feb 8, 2017, at 3:47 PM, Barry Smith <bsm...@mcs.anl.gov> wrote: > > > > > >> On Feb 8, 2017, at 3:40 PM, Manav Bhatia <bhatiama...@gmail.com> wrote: > >> > >> Hi, > >> > >> I have a nested matrix with 2x2 blocks. The blocks (1,1) and (2,2) are > >> AIJ matrices and blocks (1,2) and (2,1) and shell matrices. I am calling > >> the code with the following arguments: -pc_type fieldsplit , and get the > >> error shown below. > >> > >> I see that the error is complaining about the matrix being in > >> unassembled state, but I think I am initializing and calling assembly end > >> routines on both the diagonal blocks. Still, there is something obvious I > >> am missing. > > > > It is complaining about the outer most matrix, not the blocks. Perhaps you > > haven't finished with setting up your nest matrix? > > > >> > >> I would appreciate any guidance on this. > >> > >> Regards, > >> Manav > >> > >> > >> > >> [1;31m[0]PETSC ERROR: --------------------- Error Message > >> -------------------------------------------------------------- > >> [0;39m[0;49m[0]PETSC ERROR: Object is in wrong state > >> [0]PETSC ERROR: Not for unassembled matrix > >> [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html > >> for trouble shooting. > >> [0]PETSC ERROR: Petsc Release Version 3.7.4, Oct, 02, 2016 > >> [0]PETSC ERROR: > >> /Users/manav/Library/Developer/Xcode/DerivedData/MAST-crggwcqrouiyeucduvscdahjauvx/Build/Products/Debug/examples > >> on a arch-darwin-cxx-opt named Dhcp-90-250.HPC.MsState.Edu by manav Wed > >> Feb 8 15:28:04 2017 > >> [0]PETSC ERROR: Configure options > >> --prefix=/Users/manav/Documents/codes/numerical_lib/petsc/petsc-3.7.4/../ > >> --CC=mpicc-openmpi-clang38 --CXX=mpicxx-openmpi-clang38 > >> --FC=mpif90-openmpi-clang38 --with-clanguage=c++ --with-fortran=0 > >> --with-mpiexec=/opt/local/bin/mpiexec-openmpi-clang38 > >> --with-shared-libraries=1 --with-x=1 --with-x-dir=/opt/X11 > >> --with-debugging=0 --with-lapack-lib=/usr/lib/liblapack.dylib > >> --with-blas-lib=/usr/lib/libblas.dylib --download-superlu=yes > >> --download-superlu_dist=yes --download-suitesparse=yes > >> --download-mumps=yes --download-scalapack=yes --download-parmetis=yes > >> --download-metis=yes --download-hypre=yes --download-ml=yes > >> [0]PETSC ERROR: #1 MatMult() line 2248 in > >> /Users/manav/Documents/codes/numerical_lib/petsc/petsc-3.7.4/src/mat/interface/matrix.c > >> [0]PETSC ERROR: #2 PCApplyBAorAB() line 717 in > >> /Users/manav/Documents/codes/numerical_lib/petsc/petsc-3.7.4/src/ksp/pc/interface/precon.c > >> [0]PETSC ERROR: #3 KSP_PCApplyBAorAB() line 274 in > >> /Users/manav/Documents/codes/numerical_lib/petsc/petsc-3.7.4/include/petsc/private/kspimpl.h > >> [0]PETSC ERROR: #4 KSPGMRESCycle() line 156 in > >> /Users/manav/Documents/codes/numerical_lib/petsc/petsc-3.7.4/src/ksp/ksp/impls/gmres/gmres.c > >> [0]PETSC ERROR: #5 KSPSolve_GMRES() line 240 in > >> /Users/manav/Documents/codes/numerical_lib/petsc/petsc-3.7.4/src/ksp/ksp/impls/gmres/gmres.c > >> [0]PETSC ERROR: #6 KSPSolve() line 656 in > >> /Users/manav/Documents/codes/numerical_lib/petsc/petsc-3.7.4/src/ksp/ksp/interface/itfunc.c > >> [0]PETSC ERROR: #7 SNESSolve_NEWTONLS() line 230 in > >> /Users/manav/Documents/codes/numerical_lib/petsc/petsc-3.7.4/src/snes/impls/ls/ls.c > >> [0]PETSC ERROR: #8 SNESSolve() line 4005 in > >> /Users/manav/Documents/codes/numerical_lib/petsc/petsc-3.7.4/src/snes/interface/snes.c > >> > > >
