1 2 static char help[] = "Tests the different MatColoring implementatons.\n\n"; 3 4 #include <petscmat.h> 5 6 int main(int argc,char **args) 7 { 8 Mat C; 9 PetscErrorCode ierr; 10 PetscViewer viewer; 11 char file[128]; 12 PetscBool flg; 13 MatColoring ctx; 14 ISColoring coloring; 15 PetscMPIInt size; 16 17 ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 18 ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRMPI(ierr); 19 20 ierr = PetscOptionsGetString(NULL,NULL,"-f",file,sizeof(file),&flg);CHKERRQ(ierr); 21 if (!flg) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_USER,"Must use -f filename to load sparse matrix"); 22 ierr = PetscViewerBinaryOpen(PETSC_COMM_WORLD,file,FILE_MODE_READ,&viewer);CHKERRQ(ierr); 23 ierr = MatCreate(PETSC_COMM_WORLD,&C);CHKERRQ(ierr); 24 ierr = MatLoad(C,viewer);CHKERRQ(ierr); 25 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 26 27 ierr = MatColoringCreate(C,&ctx);CHKERRQ(ierr); 28 ierr = MatColoringSetFromOptions(ctx);CHKERRQ(ierr); 29 ierr = MatColoringApply(ctx,&coloring);CHKERRQ(ierr); 30 ierr = MatColoringTest(ctx,coloring);CHKERRQ(ierr); 31 if (size == 1) { 32 /* jp, power and greedy have bug -- need to be fixed */ 33 ierr = MatISColoringTest(C,coloring);CHKERRQ(ierr); 34 } 35 36 /* Free data structures */ 37 ierr = ISColoringDestroy(&coloring);CHKERRQ(ierr); 38 ierr = MatColoringDestroy(&ctx);CHKERRQ(ierr); 39 ierr = MatDestroy(&C);CHKERRQ(ierr); 40 ierr = PetscFinalize(); 41 return ierr; 42 } 43 44 /*TEST 45 46 test: 47 nsize: {{3}} 48 requires: datafilespath !complex double !define(PETSC_USE_64BIT_INDICES) 49 args: -f ${DATAFILESPATH}/matrices/arco1 -mat_coloring_type {{ jp power natural greedy}} -mat_coloring_distance {{ 1 2}} 50 51 test: 52 suffix: 2 53 nsize: {{1 2}} 54 requires: datafilespath !complex double !define(PETSC_USE_64BIT_INDICES) 55 args: -f ${DATAFILESPATH}/matrices/arco1 -mat_coloring_type {{ sl lf id }} -mat_coloring_distance 2 56 output_file: output/ex199_1.out 57 58 TEST*/ 59