1c4762a1bSJed Brown! 2c4762a1bSJed Brown! 3c4762a1bSJed Brown! This program demonstrates use of MatSeqAIJGetArrayF90() 4c4762a1bSJed Brown! 5c4762a1bSJed Brown program main 6c4762a1bSJed Brown 7c4762a1bSJed Brown#include <petsc/finclude/petscmat.h> 8c4762a1bSJed Brown use petscmat 9c4762a1bSJed Brown implicit none 10c4762a1bSJed Brown 11c4762a1bSJed Brown Mat A 12c4762a1bSJed Brown PetscErrorCode ierr 13c4762a1bSJed Brown PetscViewer v 14c4762a1bSJed Brown PetscScalar, pointer :: aa(:) 1562ac926dSPierre Jolivet character*(PETSC_MAX_PATH_LEN) f 16c4762a1bSJed Brown PetscBool flg 17c4762a1bSJed Brown 18c4762a1bSJed Brown call PetscInitialize(PETSC_NULL_CHARACTER,ierr) 19c4762a1bSJed Brown if (ierr .ne. 0) then 20c4762a1bSJed Brown print*,'Unable to initialize PETSc' 21c4762a1bSJed Brown stop 22c4762a1bSJed Brown endif 23c4762a1bSJed Brown 24c4762a1bSJed Brown call PetscOptionsGetString(PETSC_NULL_OPTIONS,PETSC_NULL_CHARACTER,'-f',f,flg,ierr);CHKERRA(ierr) 25c4762a1bSJed Brown call PetscViewerBinaryOpen(PETSC_COMM_WORLD,f,FILE_MODE_READ,v,ierr);CHKERRA(ierr) 26c4762a1bSJed Brown 27c4762a1bSJed Brown call MatCreate(PETSC_COMM_WORLD,A,ierr);CHKERRA(ierr) 28c4762a1bSJed Brown call MatSetType(A, MATSEQAIJ,ierr);CHKERRA(ierr) 29c4762a1bSJed Brown call MatLoad(A,v,ierr);CHKERRA(ierr) 30c4762a1bSJed Brown 31c4762a1bSJed Brown call MatView(A,PETSC_VIEWER_STDOUT_WORLD,ierr);CHKERRA(ierr) 32c4762a1bSJed Brown 33c4762a1bSJed Brown call MatSeqAIJGetArrayF90(A,aa,ierr);CHKERRA(ierr) 34c4762a1bSJed Brown print*,aa(3) 35c4762a1bSJed Brown 36c4762a1bSJed Brown call MatDestroy(A,ierr);CHKERRA(ierr) 37c4762a1bSJed Brown call PetscViewerDestroy(v,ierr);CHKERRA(ierr) 38c4762a1bSJed Brown 39c4762a1bSJed Brown call PetscFinalize(ierr) 40c4762a1bSJed Brown end 41c4762a1bSJed Brown 42c4762a1bSJed Brown!/*TEST 43c4762a1bSJed Brown! 44c4762a1bSJed Brown! test: 45c4762a1bSJed Brown! args: -f ${wPETSC_DIR}/share/petsc/datafiles/matrices/ns-real-int32-float64 -malloc_dump 46*dfd57a17SPierre Jolivet! requires: !complex double !defined(PETSC_USE_64BIT_INDICES) 47c4762a1bSJed Brown! 48c4762a1bSJed Brown!TEST*/ 49