1c4762a1bSJed Brown static char help[] = "Tests MatPermute() for a square matrix in parallel.\n\n"; 2c4762a1bSJed Brown #include <petscmat.h> 3c4762a1bSJed Brown /* Results: 4c4762a1bSJed Brown Sequential: 5c4762a1bSJed Brown - seqaij: correct permutation 6c4762a1bSJed Brown - seqbaij: permutation not supported for this MATTYPE 7c4762a1bSJed Brown - seqsbaij: permutation not supported for this MATTYPE 8c4762a1bSJed Brown Parallel: 9c4762a1bSJed Brown - mpiaij: incorrect permutation (disable this op for now) 10c4762a1bSJed Brown - seqbaij: correct permutation, but all manner of memory leaks 11c4762a1bSJed Brown (disable this op for now, because it appears broken for nonsquare matrices; see ex151) 12c4762a1bSJed Brown - seqsbaij: permutation not supported for this MATTYPE 13c4762a1bSJed Brown 14c4762a1bSJed Brown */ 15c4762a1bSJed Brown int main(int argc,char **argv) 16c4762a1bSJed Brown { 17c4762a1bSJed Brown const struct {PetscInt i,j; PetscScalar v;} entries[] = {{0,3,1.},{1,2,2.},{2,1,3.},{2,4,4.},{3,0,5.},{3,3,6.},{4,1,7.},{4,4,8.}}; 18c4762a1bSJed Brown const PetscInt ixrow[5] = {4,2,1,3,0},ixcol[5] = {3,2,1,4,0}; 19c4762a1bSJed Brown Mat A,B; 20c4762a1bSJed Brown PetscInt i,rstart,rend,cstart,cend; 21c4762a1bSJed Brown IS isrow,iscol; 22c4762a1bSJed Brown PetscViewer viewer,sviewer; 23c4762a1bSJed Brown PetscBool view_sparse; 24c4762a1bSJed Brown 25*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscInitialize(&argc,&argv,(char*)0,help)); 26c4762a1bSJed Brown /* ------- Assemble matrix, --------- */ 275f80ce2aSJacob Faibussowitsch CHKERRQ(MatCreate(PETSC_COMM_WORLD,&A)); 285f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,5,5)); 295f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetFromOptions(A)); 305f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetUp(A)); 315f80ce2aSJacob Faibussowitsch CHKERRQ(MatGetOwnershipRange(A,&rstart,&rend)); 325f80ce2aSJacob Faibussowitsch CHKERRQ(MatGetOwnershipRangeColumn(A,&cstart,&cend)); 33c4762a1bSJed Brown 34c4762a1bSJed Brown for (i=0; i<(PetscInt)(sizeof(entries)/sizeof(entries[0])); i++) { 355f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetValue(A,entries[i].i,entries[i].j,entries[i].v,INSERT_VALUES)); 36c4762a1bSJed Brown } 375f80ce2aSJacob Faibussowitsch CHKERRQ(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 385f80ce2aSJacob Faibussowitsch CHKERRQ(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 39c4762a1bSJed Brown 40c4762a1bSJed Brown /* ------ Prepare index sets ------ */ 415f80ce2aSJacob Faibussowitsch CHKERRQ(ISCreateGeneral(PETSC_COMM_WORLD,rend-rstart,ixrow+rstart,PETSC_USE_POINTER,&isrow)); 425f80ce2aSJacob Faibussowitsch CHKERRQ(ISCreateGeneral(PETSC_COMM_SELF,5,ixcol,PETSC_USE_POINTER,&iscol)); 435f80ce2aSJacob Faibussowitsch CHKERRQ(ISSetPermutation(isrow)); 445f80ce2aSJacob Faibussowitsch CHKERRQ(ISSetPermutation(iscol)); 45c4762a1bSJed Brown 465f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIGetStdout(PETSC_COMM_WORLD,&viewer)); 47c4762a1bSJed Brown view_sparse = PETSC_FALSE; 485f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetBool(NULL,NULL, "-view_sparse", &view_sparse, NULL)); 49c4762a1bSJed Brown if (!view_sparse) { 505f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerPushFormat(viewer,PETSC_VIEWER_ASCII_DENSE)); 51c4762a1bSJed Brown } 525f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIPrintf(viewer,"Original matrix\n")); 535f80ce2aSJacob Faibussowitsch CHKERRQ(MatView(A,viewer)); 54c4762a1bSJed Brown 555f80ce2aSJacob Faibussowitsch CHKERRQ(MatPermute(A,isrow,iscol,&B)); 565f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIPrintf(viewer,"Permuted matrix\n")); 575f80ce2aSJacob Faibussowitsch CHKERRQ(MatView(B,viewer)); 58c4762a1bSJed Brown if (!view_sparse) { 595f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerPopFormat(viewer)); 60c4762a1bSJed Brown } 61c4762a1bSJed Brown 625f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIPrintf(viewer,"Row permutation\n")); 635f80ce2aSJacob Faibussowitsch CHKERRQ(ISView(isrow,viewer)); 645f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerASCIIPrintf(viewer,"Column permutation\n")); 655f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerGetSubViewer(viewer,PETSC_COMM_SELF,&sviewer)); 665f80ce2aSJacob Faibussowitsch CHKERRQ(ISView(iscol,sviewer)); 675f80ce2aSJacob Faibussowitsch CHKERRQ(PetscViewerRestoreSubViewer(viewer,PETSC_COMM_SELF,&sviewer)); 68c4762a1bSJed Brown 69c4762a1bSJed Brown /* Free data structures */ 705f80ce2aSJacob Faibussowitsch CHKERRQ(ISDestroy(&isrow)); 715f80ce2aSJacob Faibussowitsch CHKERRQ(ISDestroy(&iscol)); 725f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&A)); 735f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&B)); 74c4762a1bSJed Brown 75*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscFinalize()); 76*b122ec5aSJacob Faibussowitsch return 0; 77c4762a1bSJed Brown } 78