[petsc-users] block matrix without MatCreateNest

Klaij, Christiaan C.Klaij at marin.nl
Mon Aug 1 08:59:12 CDT 2016


Matt,

Thanks for your suggestions. Here's the outcome:

1) without the "if type=nest" protection, I get a "Cannot
locate function MatNestSetSubMats_C" error when using
type mpiaij, see below.

2) with the isg in a proper array, I get the same "Invalid
Pointer to Object" error, see below.

Chris


$ cat mattry.F90
program mattry

  use petscksp
  implicit none
#include <petsc/finclude/petsckspdef.h>

  PetscInt :: n=4   ! setting 4 cells per process

  PetscErrorCode         :: ierr
  PetscInt               :: size,rank,i
  Mat                    :: A,A02
  MatType                :: type
  IS                     :: isg(3)
  IS                     :: isl(3)
  ISLocalToGlobalMapping :: map

  integer, allocatable, dimension(:) :: idx

  call PetscInitialize(PETSC_NULL_CHARACTER,ierr); CHKERRQ(ierr)
  call MPI_Comm_size(PETSC_COMM_WORLD,size,ierr); CHKERRQ(ierr)
  call MPI_Comm_rank(PETSC_COMM_WORLD,rank,ierr);CHKERRQ(ierr)

  ! local index sets for 3 fields
  allocate(idx(n))
  idx=(/ (i-1, i=1,n) /)
  call ISCreateGeneral(PETSC_COMM_WORLD,n,idx,PETSC_COPY_VALUES,isl(1),ierr);CHKERRQ(ierr)
  call ISCreateGeneral(PETSC_COMM_WORLD,n,idx+n,PETSC_COPY_VALUES,isl(2),ierr);CHKERRQ(ierr)
  call ISCreateGeneral(PETSC_COMM_WORLD,n,idx+2*n,PETSC_COPY_VALUES,isl(3),ierr);CHKERRQ(ierr)
!  call ISView(isl3,PETSC_VIEWER_STDOUT_WORLD,ierr); CHKERRQ(ierr)
  deallocate(idx)

  ! global index sets for 3 fields
  allocate(idx(n))
  idx=(/ (i-1+rank*3*n, i=1,n) /)
  call ISCreateGeneral(PETSC_COMM_WORLD,n,idx,PETSC_COPY_VALUES,isg(1),ierr);CHKERRQ(ierr)
  call ISCreateGeneral(PETSC_COMM_WORLD,n,idx+n,PETSC_COPY_VALUES,isg(2),ierr); CHKERRQ(ierr)
  call ISCreateGeneral(PETSC_COMM_WORLD,n,idx+2*n,PETSC_COPY_VALUES,isg(3),ierr); CHKERRQ(ierr)
!  call ISView(isg3,PETSC_VIEWER_STDOUT_WORLD,ierr); CHKERRQ(ierr)
  deallocate(idx)

  ! local-to-global mapping
  allocate(idx(3*n))
  idx=(/ (i-1+rank*3*n, i=1,3*n) /)
  call ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD,1,3*n,idx,PETSC_COPY_VALUES,map,ierr); CHKERRQ(ierr)
!  call ISLocalToGlobalMappingView(map,PETSC_VIEWER_STDOUT_WORLD,ierr); CHKERRQ(ierr)
  deallocate(idx)

  ! create the 3-by-3 block matrix
  call MatCreate(PETSC_COMM_WORLD,A,ierr); CHKERRQ(ierr)
  call MatSetSizes(A,3*n,3*n,PETSC_DECIDE,PETSC_DECIDE,ierr); CHKERRQ(ierr)
  call MatSetUp(A,ierr); CHKERRQ(ierr)
  call MatSetOptionsPrefix(A,"A_",ierr); CHKERRQ(ierr)
  call MatSetLocalToGlobalMapping(A,map,map,ierr); CHKERRQ(ierr)
  call MatSetFromOptions(A,ierr); CHKERRQ(ierr)

  ! setup nest
  call MatNestSetSubMats(A,3,isg,3,isg,PETSC_NULL_OBJECT,ierr); CHKERRQ(ierr)

  ! set diagonal of block A02 to 0.65
  call MatGetLocalSubmatrix(A,isl(1),isl(3),A02,ierr); CHKERRQ(ierr)
  do i=1,n
     call MatSetValuesLocal(A02,1,i-1,1,i-1,0.65d0,INSERT_VALUES,ierr); CHKERRQ(ierr)
  end do
  call MatRestoreLocalSubMatrix(A,isl(1),isl(3),A02,ierr); CHKERRQ(ierr)
  call MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY,ierr); CHKERRQ(ierr)
  call MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY,ierr); CHKERRQ(ierr)

  ! verify
  call MatGetSubmatrix(A,isg(1),isg(3),MAT_INITIAL_MATRIX,A02,ierr); CHKERRQ(ierr)
  call MatView(A02,PETSC_VIEWER_STDOUT_WORLD,ierr);CHKERRQ(ierr)

  call PetscFinalize(ierr)

end program mattry


$ mpiexec -n 2 ./mattry -A_mat_type mpiaij
[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
[0]PETSC ERROR: No support for this operation for this object type
[0]PETSC ERROR: Cannot locate function MatNestSetSubMats_C in object
[0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
[0]PETSC ERROR: Petsc Release Version 3.7.3, Jul, 24, 2016
[0]PETSC ERROR: ./mattry                                                                                                                                                                                                                                                             on a linux_64bit_debug named lin0322.marin.local by cklaij Mon Aug  1 15:42:10 2016
[0]PETSC ERROR: Configure options --with-mpi-dir=/home/cklaij/ReFRESCO/Dev/trunk/Libs/install/openmpi/1.8.7 --with-clanguage=c++ --with-x=1 --with-debugging=1 --with-blas-lapack-dir=/opt/intel/composer_xe_2015.1.133/mkl --with-shared-libraries=0
[0]PETSC ERROR: #1 MatNestSetSubMats() line 1105 in /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/mat/impls/nest/matnest.c
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 0 in communicator MPI_COMM_WORLD
with errorcode 56.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
--------------------------------------------------------------------------
[1]PETSC ERROR: ------------------------------------------------------------------------
[1]PETSC ERROR: Caught signal number 15 Terminate: Some process (or the batch system) has told this process to end
[1]PETSC ERROR: Try option -start_in_debugger or -on_error_attach_debugger
[1]PETSC ERROR: or see http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind
[1]PETSC ERROR: or try http://valgrind.org on GNU/linux and Apple Mac OS X to find memory corruption errors
[1]PETSC ERROR: likely location of problem given in stack below
[1]PETSC ERROR: ---------------------  Stack Frames ------------------------------------
[1]PETSC ERROR: Note: The EXACT line numbers in the stack are not available,
[1]PETSC ERROR:       INSTEAD the line number of the start of the function
[1]PETSC ERROR:       is given.
[1]PETSC ERROR: [1] PetscSleep line 35 /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/sys/utils/psleep.c
[1]PETSC ERROR: [1] PetscTraceBackErrorHandler line 193 /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/sys/error/errtrace.c
[1]PETSC ERROR: [1] PetscError line 364 /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/sys/error/err.c
[1]PETSC ERROR: [1] MatNestSetSubMats line 1092 /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/mat/impls/nest/matnest.c
[1]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
[1]PETSC ERROR: Signal received
[1]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
[1]PETSC ERROR: Petsc Release Version 3.7.3, Jul, 24, 2016
[1]PETSC ERROR: ./mattry                                                                                                                                                                                                                                                             on a linux_64bit_debug named lin0322.marin.local by cklaij Mon Aug  1 15:42:10 2016
[1]PETSC ERROR: Configure options --with-mpi-dir=/home/cklaij/ReFRESCO/Dev/trunk/Libs/install/openmpi/1.8.7 --with-clanguage=c++ --with-x=1 --with-debugging=1 --with-blas-lapack-dir=/opt/intel/composer_xe_2015.1.133/mkl --with-shared-libraries=0
[1]PETSC ERROR: #1 User provided function() line 0 in  unknown file
[lin0322.marin.local:19455] 1 more process has sent help message help-mpi-api.txt / mpi-abort
[lin0322.marin.local:19455] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages


$ mpiexec -n 2 ./mattry -A_mat_type nest
[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
[0]PETSC ERROR: Corrupt argument: http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind
[0]PETSC ERROR: Invalid Pointer to Object: Parameter # 1
[0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
[1]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------
[1]PETSC ERROR: Corrupt argument: http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind
[1]PETSC ERROR: Invalid Pointer to Object: Parameter # 1
[1]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.
[1]PETSC ERROR: Petsc Release Version 3.7.3, Jul, 24, 2016
[1]PETSC ERROR: ./mattry                                                                                                                                                                                                                                                             on a linux_64bit_debug named lin0322.marin.local by cklaij Mon Aug  1 15:42:25 2016
[1]PETSC ERROR: Configure options --with-mpi-dir=/home/cklaij/ReFRESCO/Dev/trunk/Libs/install/openmpi/1.8.7 --with-clanguage=c++ --with-x=1 --with-debugging=1 --with-blas-lapack-dir=/opt/intel/composer_xe_2015.1.133/mkl --with-shared-libraries=0
[1]PETSC ERROR: #1 PetscObjectReference() line 534 in /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/sys/objects/inherit.c
[1]PETSC ERROR: #2 MatNestSetSubMats_Nest() line 1042 in /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/mat/impls/nest/matnest.c
[1]PETSC ERROR: #3 MatNestSetSubMats() line 1105 in /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/mat/impls/nest/matnest.c
[0]PETSC ERROR: Petsc Release Version 3.7.3, Jul, 24, 2016
[0]PETSC ERROR: ./mattry                                                                                                                                                                                                                                                             on a linux_64bit_debug named lin0322.marin.local by cklaij Mon Aug  1 15:42:25 2016
[0]PETSC ERROR: Configure options --with-mpi-dir=/home/cklaij/ReFRESCO/Dev/trunk/Libs/install/openmpi/1.8.7 --with-clanguage=c++ --with-x=1 --with-debugging=1 --with-blas-lapack-dir=/opt/intel/composer_xe_2015.1.133/mkl --with-shared-libraries=0
[0]PETSC ERROR: #1 PetscObjectReference() line 534 in /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/sys/objects/inherit.c
[0]PETSC ERROR: #2 MatNestSetSubMats_Nest() line 1042 in /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/mat/impls/nest/matnest.c
[0]PETSC ERROR: #3 MatNestSetSubMats() line 1105 in /home/cklaij/ReFRESCO/Dev/trunk/Libs/build/petsc/3.7.3-dbg/src/mat/impls/nest/matnest.c
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD
with errorcode 64.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
--------------------------------------------------------------------------
[lin0322.marin.local:19465] 1 more process has sent help message help-mpi-api.txt / mpi-abort
[lin0322.marin.local:19465] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
$


dr. ir. Christiaan Klaij  | CFD Researcher | Research & Development
MARIN | T +31 317 49 33 44 | mailto:C.Klaij at marin.nl | http://www.marin.nl

MARIN news: http://www.marin.nl/web/News/News-items/Ship-design-in-EU-project-Holiship.htm



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