xref: /petsc/src/mat/tests/ex191.c (revision c4762a1b19cd2af06abeed90e8f9d34fb975dd94)
1*c4762a1bSJed Brown static char help[] = "Tests MatLoad() for dense matrix with uneven dimensions set in program\n\n";
2*c4762a1bSJed Brown 
3*c4762a1bSJed Brown #include <petscmat.h>
4*c4762a1bSJed Brown 
5*c4762a1bSJed Brown int main(int argc,char **args)
6*c4762a1bSJed Brown {
7*c4762a1bSJed Brown   Mat            A;
8*c4762a1bSJed Brown   PetscViewer    fd;
9*c4762a1bSJed Brown   PetscErrorCode ierr;
10*c4762a1bSJed Brown   PetscMPIInt    rank;
11*c4762a1bSJed Brown   PetscScalar    *Av;
12*c4762a1bSJed Brown   PetscInt       i;
13*c4762a1bSJed Brown 
14*c4762a1bSJed Brown   ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr;
15*c4762a1bSJed Brown   ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr);
16*c4762a1bSJed Brown 
17*c4762a1bSJed Brown   ierr = MatCreateDense(PETSC_COMM_WORLD,6,6,12,12,NULL,&A);CHKERRQ(ierr);
18*c4762a1bSJed Brown   ierr = MatDenseGetArray(A,&Av);CHKERRQ(ierr);
19*c4762a1bSJed Brown   for (i=0; i<6*12; i++) Av[i] = (PetscScalar) i;
20*c4762a1bSJed Brown   ierr = MatDenseRestoreArray(A,&Av);CHKERRQ(ierr);
21*c4762a1bSJed Brown 
22*c4762a1bSJed Brown   /* Load matrices */
23*c4762a1bSJed Brown   ierr = PetscViewerBinaryOpen(PETSC_COMM_WORLD,"ex191matrix",FILE_MODE_WRITE,&fd);CHKERRQ(ierr);
24*c4762a1bSJed Brown   ierr = PetscViewerPushFormat(fd,PETSC_VIEWER_NATIVE);CHKERRQ(ierr);
25*c4762a1bSJed Brown   ierr = MatView(A,fd);CHKERRQ(ierr);
26*c4762a1bSJed Brown   ierr = MatDestroy(&A);CHKERRQ(ierr);
27*c4762a1bSJed Brown   ierr = PetscViewerPopFormat(fd);CHKERRQ(ierr);
28*c4762a1bSJed Brown   ierr = PetscViewerDestroy(&fd);CHKERRQ(ierr);
29*c4762a1bSJed Brown 
30*c4762a1bSJed Brown   ierr = MatCreate(PETSC_COMM_WORLD,&A);CHKERRQ(ierr);
31*c4762a1bSJed Brown   ierr = MatSetType(A,MATDENSE);CHKERRQ(ierr);
32*c4762a1bSJed Brown   if (!rank) {
33*c4762a1bSJed Brown     ierr = MatSetSizes(A, 4, PETSC_DETERMINE, PETSC_DETERMINE,PETSC_DETERMINE);CHKERRQ(ierr);
34*c4762a1bSJed Brown   } else {
35*c4762a1bSJed Brown     ierr = MatSetSizes(A, 8, PETSC_DETERMINE, PETSC_DETERMINE,PETSC_DETERMINE);CHKERRQ(ierr);
36*c4762a1bSJed Brown   }
37*c4762a1bSJed Brown   ierr = PetscViewerBinaryOpen(PETSC_COMM_WORLD,"ex191matrix",FILE_MODE_READ,&fd);CHKERRQ(ierr);
38*c4762a1bSJed Brown   ierr = MatLoad(A,fd);CHKERRQ(ierr);
39*c4762a1bSJed Brown   ierr = PetscViewerDestroy(&fd);CHKERRQ(ierr);
40*c4762a1bSJed Brown   ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
41*c4762a1bSJed Brown   ierr = PetscViewerPushFormat(PETSC_VIEWER_STDOUT_WORLD,PETSC_VIEWER_ASCII_INFO_DETAIL);CHKERRQ(ierr);
42*c4762a1bSJed Brown   ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
43*c4762a1bSJed Brown   ierr = PetscViewerPopFormat(PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
44*c4762a1bSJed Brown   ierr = MatDestroy(&A);CHKERRQ(ierr);
45*c4762a1bSJed Brown   ierr = PetscFinalize();
46*c4762a1bSJed Brown   return ierr;
47*c4762a1bSJed Brown }
48*c4762a1bSJed Brown 
49*c4762a1bSJed Brown 
50*c4762a1bSJed Brown /*TEST
51*c4762a1bSJed Brown 
52*c4762a1bSJed Brown    test:
53*c4762a1bSJed Brown       nsize: 2
54*c4762a1bSJed Brown       args: -vecscatter_type sf
55*c4762a1bSJed Brown       filter: grep -v alloced
56*c4762a1bSJed Brown 
57*c4762a1bSJed Brown TEST*/
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