I have added more words to the manual page for MatConvert() to make the MatReuse easier to understand.
> On Dec 16, 2016, at 7:50 AM, Barry Smith <[email protected]> wrote: > > > Eric, > > Perhaps you should be using MAT_INPLACE_MATRIX? > > The documentation is not as clear as it should be on MAT_INPLACE_MATRIX vs > MAT_REUSE_MATRIX and it is possible that some implementations of > MatConvert_xxx() are broken and do not use this flag properly. > > MAT_INPLACE_MATRIX means replace the input matrix with the matrix of the new > type > > MAT_REUSE_MATRIX means reuse the matrix that has been passed in as the final > value (that matrix must have come from a previous call to MatConvert() with > the flag MAT_INITIAL_MATRIX) > > Barry > > >> On Dec 16, 2016, at 7:43 AM, Stefano Zampini <[email protected]> >> wrote: >> >> Actually, the matrix type has not yet been set (since you have "null" in >> your output) >> >> 2016-12-16 16:43 GMT+03:00 Stefano Zampini <[email protected]>: >> Looking at lines 113-115 of master >> >> if (reuse == MAT_REUSE_MATRIX) { >> ierr = >> PetscObjectTypeCompare((PetscObject)*newmat,MATSEQDENSE,&isseqdense);CHKERRQ(ierr); >> if (!isseqdense) >> SETERRQ1(PetscObjectComm((PetscObject)*newmat),PETSC_ERR_USER,"Cannot reuse >> matrix of type %s",((PetscObject)(*newmat))->type); >> } >> >> you are trying to call MatConvert with the reuse flag on a matrix which is >> not of type SeqDense. Can you provide a MWE to reproduce the problem? >> >> Thanks, >> Stefano >> >> 2016-12-16 16:39 GMT+03:00 Eric Chamberland >> <[email protected]>: >> Another precision: the problem may still be there since dec 15, not >> tonight... >> >> Eric >> >> >> >> On 16/12/16 08:30 AM, Eric Chamberland wrote: >> Hi, >> >> something seems broken with master branch since last night. >> >> With our nighlty tests, we now have many times this PETSC ERROR: >> >> [0]PETSC ERROR: Cannot reuse matrix of type (null) >> [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html >> for trouble shooting. >> [0]PETSC ERROR: Petsc Development GIT revision: v3.7.4-2508-ga46e98f GIT >> Date: 2016-12-14 17:44:47 -0600 >> [0]PETSC ERROR: >> /pmi/cmpbib/compilation_BIB_gcc_redhat_petsc-master_debug/COMPILE_AUTO/BIB/bin/Test.BIBProblemeGD.dev >> on a arch-linux2-c-debug named compile by Unknown Fri Dec 16 03:06:00 2016 >> [0]PETSC ERROR: Configure options --prefix=/opt/petsc-master_debug >> --with-mpi-compilers=1 --with-make-np=12 --with-shared-libraries=1 >> --with-mpi-dir=/opt/openmpi-1.10.2 --with-debugging=yes >> --with-mkl_pardiso=1 --with-mkl_pardiso-dir=/opt/intel/composerxe/mkl >> --download-ml=yes --download-mumps=yes --download-superlu=yes >> --download-superlu_dist=yes --download-parmetis=yes >> --download-ptscotch=yes --download-metis=yes --download-suitesparse=yes >> --download-hypre=yes --with-scalapack=1 >> --with-scalapack-include=/opt/intel/composerxe/mkl/include >> --with-scalapack-lib="-L/opt/intel/composerxe/mkl/lib/intel64 >> -lmkl_scalapack_lp64 -lmkl_blacs_openmpi_lp64" >> --with-blas-lapack-dir=/opt/intel/composerxe/mkl/lib/intel64 >> [0]PETSC ERROR: #1 MatConvert_SeqAIJ_SeqDense() line 115 in >> /pmi/cmpbib/compilation_BIB_gcc_redhat_petsc-master_debug/COMPILE_AUTO/petsc-master-debug/src/mat/impls/dense/seq/dense.c >> >> [0]PETSC ERROR: #2 MatConvert() line 4136 in >> /pmi/cmpbib/compilation_BIB_gcc_redhat_petsc-master_debug/COMPILE_AUTO/petsc-master-debug/src/mat/interface/matrix.c >> >> >> >> With all other PETSc versions we use, with the same tests, we do not >> have this problem. >> >> Here are the configure/build logs: >> >> http://www.giref.ulaval.ca/~cmpgiref/petsc-master-debug/2016.12.16.02h00m01s_configure.log >> >> http://www.giref.ulaval.ca/~cmpgiref/petsc-master-debug/2016.12.16.02h00m01s_make.log >> >> http://www.giref.ulaval.ca/~cmpgiref/petsc-master-debug/2016.12.16.02h00m01s_RDict.log >> >> http://www.giref.ulaval.ca/~cmpgiref/petsc-master-debug/2016.12.16.02h00m01s_CMakeLists.txt >> >> >> Is it a normal change or is it a bug? >> >> I can provide more context to help dig into this. >> >> Thanks, >> >> Eric >> >> >> >> -- >> Stefano >> >> >> >> -- >> Stefano >
