Actual source code: ex199.c


  2: static char help[] = "Tests the different MatColoring implementatons.\n\n";

  4: #include <petscmat.h>

  6: int main(int argc,char **args)
  7: {
  8:   Mat            C;
  9:   PetscViewer    viewer;
 10:   char           file[128];
 11:   PetscBool      flg;
 12:   MatColoring    ctx;
 13:   ISColoring     coloring;
 14:   PetscMPIInt    size;

 16:   PetscInitialize(&argc,&args,(char*)0,help);
 17:   MPI_Comm_size(PETSC_COMM_WORLD,&size);

 19:   PetscOptionsGetString(NULL,NULL,"-f",file,sizeof(file),&flg);
 21:   PetscViewerBinaryOpen(PETSC_COMM_WORLD,file,FILE_MODE_READ,&viewer);
 22:   MatCreate(PETSC_COMM_WORLD,&C);
 23:   MatLoad(C,viewer);
 24:   PetscViewerDestroy(&viewer);

 26:   MatColoringCreate(C,&ctx);
 27:   MatColoringSetFromOptions(ctx);
 28:   MatColoringApply(ctx,&coloring);
 29:   MatColoringTest(ctx,coloring);
 30:   if (size == 1) {
 31:     /* jp, power and greedy have bug -- need to be fixed */
 32:     MatISColoringTest(C,coloring);
 33:   }

 35:   /* Free data structures */
 36:   ISColoringDestroy(&coloring);
 37:   MatColoringDestroy(&ctx);
 38:   MatDestroy(&C);
 39:   PetscFinalize();
 40:   return 0;
 41: }

 43: /*TEST

 45:    test:
 46:       nsize: {{3}}
 47:       requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
 48:       args: -f ${DATAFILESPATH}/matrices/arco1 -mat_coloring_type {{ jp power natural greedy}} -mat_coloring_distance {{ 1 2}}

 50:    test:
 51:       suffix: 2
 52:       nsize: {{1 2}}
 53:       requires: datafilespath !complex double !defined(PETSC_USE_64BIT_INDICES)
 54:       args: -f ${DATAFILESPATH}/matrices/arco1 -mat_coloring_type {{  sl lf id }} -mat_coloring_distance 2
 55:       output_file: output/ex199_1.out

 57: TEST*/