This can happen if the data was stored in single precision and PETSc was built for double.
> On Jul 29, 2024, at 3:55 PM, neil liu <liufi...@gmail.com> wrote: > > This Message Is From an External Sender > This message came from outside your organization. > Dear Petsc developers,, > > I am trying to run > https://urldefense.us/v3/__https://petsc.org/release/src/ksp/ksp/tutorials/ex72.c.html__;!!G_uCfscf7eWS!cxcXQ-gJ2AqH7pUs5_UkS1JsktrP9Txs8erD1qj1O_mKwMjlMkbN22tMb1YFrYSbiNc-ykszIflh5IhdXM1a_YQ$ > > <https://urldefense.us/v3/__https://petsc.org/release/src/ksp/ksp/tutorials/ex72.c.html__;!!G_uCfscf7eWS!ZG4gvmS6hQD8ymbvCUDfAatzRUJHzmWO-hOgp9m0xXuAXgIB-fxe_xspYs3WEPi_Ed0UFLMHKanYuYWrTlQGrA$> > with > > petsc-3.21.1/petsc/arch-linux-c-opt/bin/mpirun -n 2 ./ex72 -f > /Documents/PetscData/poisson_DMPLEX_32x32_16.dat -pc_type bddc -ksp_type cg > -ksp_norm_type natural -ksp_error_if_not_converged -mat_type is > > The file was downloaded and put in the directory PetscData. > > The error is shown as follows, > > 0]PETSC ERROR: --------------------- Error Message > -------------------------------------------------------------- > [0]PETSC ERROR: Read from file failed > [0]PETSC ERROR: Read past end of file > [0]PETSC ERROR: WARNING! There are unused option(s) set! Could be the program > crashed before usage or a spelling mistake, etc! > [0]PETSC ERROR: Option left: name:-ksp_error_if_not_converged (no value) > source: command line > [0]PETSC ERROR: Option left: name:-ksp_norm_type value: natural source: > command line > [0]PETSC ERROR: Option left: name:-ksp_type value: cg source: command line > [0]PETSC ERROR: Option left: name:-pc_type value: bddc source: command line > [0]PETSC ERROR: See > https://urldefense.us/v3/__https://petsc.org/release/faq/__;!!G_uCfscf7eWS!cxcXQ-gJ2AqH7pUs5_UkS1JsktrP9Txs8erD1qj1O_mKwMjlMkbN22tMb1YFrYSbiNc-ykszIflh5IhdqaBPI7o$ > > <https://urldefense.us/v3/__https://petsc.org/release/faq/__;!!G_uCfscf7eWS!ZG4gvmS6hQD8ymbvCUDfAatzRUJHzmWO-hOgp9m0xXuAXgIB-fxe_xspYs3WEPi_Ed0UFLMHKanYuYVR0x14Xg$> > for trouble shooting. > [0]PETSC ERROR: Petsc Release Version 3.21.1, unknown > [0]PETSC ERROR: ./ex72 on a arch-linux-c-opt named > Mon Jul 29 15:50:04 2024 > [0]PETSC ERROR: Configure options --with-cc=gcc --with-fc=gfortran > --with-cxx=g++ --download-fblaslapack --download-mpich > --with-scalar-type=complex --download-triangle --with-debugging=no > [0]PETSC ERROR: #1 PetscBinaryRead() at > /home/xxxxxx/Documents/petsc-3.21.1/petsc/src/sys/fileio/sysio.c:327 > [0]PETSC ERROR: #2 PetscViewerBinaryWriteReadAll() at > /home/xiaodong.liu/Documents/petsc-3.21.1/petsc/src/sys/classes/viewer/impls/binary/binv.c:1077 > [0]PETSC ERROR: #3 PetscViewerBinaryReadAll() at > /home/xiaodong.liu/Documents/petsc-3.21.1/petsc/src/sys/classes/viewer/impls/binary/binv.c:1119 > [0]PETSC ERROR: #4 MatLoad_MPIAIJ_Binary() at > Documents/petsc-3.21.1/petsc/src/mat/impls/aij/mpi/mpiaij.c:3093 > [0]PETSC ERROR: #5 MatLoad_MPIAIJ() at > /Documents/petsc-3.21.1/petsc/src/mat/impls/aij/mpi/mpiaij.c:3035 > [0]PETSC ERROR: #6 MatLoad() at > /Documents/petsc-3.21.1/petsc/src/mat/interface/matrix.c:1344 > [0]PETSC ERROR: #7 MatLoad_IS() at > /Documents/petsc-3.21.1/petsc/src/mat/impls/is/matis.c:2575 > [0]PETSC ERROR: #8 MatLoad() at > /home/Documents/petsc-3.21.1/petsc/src/mat/interface/matrix.c:1344 > [0]PETSC ERROR: #9 main() at ex72.c:105 > [0]PETSC ERROR: PETSc Option Table entries: > [0]PETSC ERROR: -f > /Documents/PetscData/poisson_DMPLEX_32x32_16.dat (source: command line) > [0]PETSC ERROR: -ksp_error_if_not_converged (source: command line) > [0]PETSC ERROR: -ksp_norm_type natural (source: command line) > [0]PETSC ERROR: -ksp_type cg (source: command line) > [0]PETSC ERROR: -mat_type is (source: command line) > [0]PETSC ERROR: -pc_type bddc (source: command line) > [0]PETSC ERROR: ----------------End of Error Message -------send entire error > message to petsc-ma...@mcs.anl.gov <mailto:petsc-ma...@mcs.anl.gov>---------- > application called MPI_Abort(MPI_COMM_SELF, 66) - process 0
