1 2 static char help[] = "Tests MatGetRowIJ for SeqAIJ, SeqBAIJ and SeqSBAIJ\n\n"; 3 4 #include <petscmat.h> 5 6 PetscErrorCode DumpCSR(Mat A,PetscInt shift,PetscBool symmetric,PetscBool compressed) 7 { 8 MatType type; 9 PetscInt i,j,nr,bs = 1; 10 const PetscInt *ia,*ja; 11 PetscBool done,isseqbaij,isseqsbaij; 12 13 PetscFunctionBeginUser; 14 CHKERRQ(PetscObjectBaseTypeCompare((PetscObject)A,MATSEQBAIJ,&isseqbaij)); 15 CHKERRQ(PetscObjectBaseTypeCompare((PetscObject)A,MATSEQSBAIJ,&isseqsbaij)); 16 if (isseqbaij || isseqsbaij) { 17 CHKERRQ(MatGetBlockSize(A,&bs)); 18 } 19 CHKERRQ(MatGetType(A,&type)); 20 CHKERRQ(MatGetRowIJ(A,shift,symmetric,compressed,&nr,&ia,&ja,&done)); 21 CHKERRQ(PetscPrintf(PETSC_COMM_SELF,"===========================================================\n")); 22 CHKERRQ(PetscPrintf(PETSC_COMM_SELF,"CSR for %s: shift %" PetscInt_FMT " symmetric %" PetscInt_FMT " compressed %" PetscInt_FMT "\n",type,shift,(PetscInt)symmetric,(PetscInt)compressed)); 23 for (i=0;i<nr;i++) { 24 CHKERRQ(PetscPrintf(PETSC_COMM_SELF,"%" PetscInt_FMT ":",i+shift)); 25 for (j=ia[i];j<ia[i+1];j++) { 26 CHKERRQ(PetscPrintf(PETSC_COMM_SELF," %" PetscInt_FMT,ja[j-shift])); 27 } 28 CHKERRQ(PetscPrintf(PETSC_COMM_SELF,"\n")); 29 } 30 CHKERRQ(MatRestoreRowIJ(A,shift,symmetric,compressed,&nr,&ia,&ja,&done)); 31 PetscFunctionReturn(0); 32 } 33 34 int main(int argc,char **args) 35 { 36 Mat A,B,C; 37 PetscInt i,j,k,m = 3,n = 3,bs = 1; 38 PetscMPIInt size; 39 40 CHKERRQ(PetscInitialize(&argc,&args,(char*)0,help)); 41 CHKERRMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size)); 42 PetscCheckFalse(size != 1,PETSC_COMM_WORLD,PETSC_ERR_SUP,"This is a uniprocessor example only!"); 43 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL)); 44 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL)); 45 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-bs",&bs,NULL)); 46 /* adjust sizes by block size */ 47 if (m%bs) m += bs-m%bs; 48 if (n%bs) n += bs-n%bs; 49 50 CHKERRQ(MatCreate(PETSC_COMM_SELF,&A)); 51 CHKERRQ(MatSetSizes(A,m*n,m*n,PETSC_DECIDE,PETSC_DECIDE)); 52 CHKERRQ(MatSetBlockSize(A,bs)); 53 CHKERRQ(MatSetType(A,MATSEQAIJ)); 54 CHKERRQ(MatSetUp(A)); 55 CHKERRQ(MatCreate(PETSC_COMM_SELF,&B)); 56 CHKERRQ(MatSetSizes(B,m*n,m*n,PETSC_DECIDE,PETSC_DECIDE)); 57 CHKERRQ(MatSetBlockSize(B,bs)); 58 CHKERRQ(MatSetType(B,MATSEQBAIJ)); 59 CHKERRQ(MatSetUp(B)); 60 CHKERRQ(MatCreate(PETSC_COMM_SELF,&C)); 61 CHKERRQ(MatSetSizes(C,m*n,m*n,PETSC_DECIDE,PETSC_DECIDE)); 62 CHKERRQ(MatSetBlockSize(C,bs)); 63 CHKERRQ(MatSetType(C,MATSEQSBAIJ)); 64 CHKERRQ(MatSetUp(C)); 65 CHKERRQ(MatSetOption(C,MAT_IGNORE_LOWER_TRIANGULAR,PETSC_TRUE)); 66 67 for (i=0; i<m; i++) { 68 for (j=0; j<n; j++) { 69 70 PetscScalar v = -1.0; 71 PetscInt Ii = j + n*i,J; 72 J = Ii - n; 73 if (J>=0) { 74 CHKERRQ(MatSetValues(A,1,&Ii,1,&J,&v,INSERT_VALUES)); 75 CHKERRQ(MatSetValues(B,1,&Ii,1,&J,&v,INSERT_VALUES)); 76 CHKERRQ(MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES)); 77 } 78 J = Ii + n; 79 if (J<m*n) { 80 CHKERRQ(MatSetValues(A,1,&Ii,1,&J,&v,INSERT_VALUES)); 81 CHKERRQ(MatSetValues(B,1,&Ii,1,&J,&v,INSERT_VALUES)); 82 CHKERRQ(MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES)); 83 } 84 J = Ii - 1; 85 if (J>=0) { 86 CHKERRQ(MatSetValues(A,1,&Ii,1,&J,&v,INSERT_VALUES)); 87 CHKERRQ(MatSetValues(B,1,&Ii,1,&J,&v,INSERT_VALUES)); 88 CHKERRQ(MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES)); 89 } 90 J = Ii + 1; 91 if (J<m*n) { 92 CHKERRQ(MatSetValues(A,1,&Ii,1,&J,&v,INSERT_VALUES)); 93 CHKERRQ(MatSetValues(B,1,&Ii,1,&J,&v,INSERT_VALUES)); 94 CHKERRQ(MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES)); 95 } 96 v = 4.0; 97 CHKERRQ(MatSetValues(A,1,&Ii,1,&Ii,&v,INSERT_VALUES)); 98 CHKERRQ(MatSetValues(B,1,&Ii,1,&Ii,&v,INSERT_VALUES)); 99 CHKERRQ(MatSetValues(C,1,&Ii,1,&Ii,&v,INSERT_VALUES)); 100 } 101 } 102 CHKERRQ(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 103 CHKERRQ(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 104 CHKERRQ(MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY)); 105 CHKERRQ(MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY)); 106 CHKERRQ(MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY)); 107 CHKERRQ(MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY)); 108 109 /* test MatGetRowIJ for the three Mat types */ 110 CHKERRQ(MatView(A,NULL)); 111 CHKERRQ(MatView(B,NULL)); 112 CHKERRQ(MatView(C,NULL)); 113 for (i=0;i<2;i++) { 114 PetscInt shift = i; 115 for (j=0;j<2;j++) { 116 PetscBool symmetric = ((j>0) ? PETSC_FALSE : PETSC_TRUE); 117 for (k=0;k<2;k++) { 118 PetscBool compressed = ((k>0) ? PETSC_FALSE : PETSC_TRUE); 119 CHKERRQ(DumpCSR(A,shift,symmetric,compressed)); 120 CHKERRQ(DumpCSR(B,shift,symmetric,compressed)); 121 CHKERRQ(DumpCSR(C,shift,symmetric,compressed)); 122 } 123 } 124 } 125 CHKERRQ(MatDestroy(&A)); 126 CHKERRQ(MatDestroy(&B)); 127 CHKERRQ(MatDestroy(&C)); 128 CHKERRQ(PetscFinalize()); 129 return 0; 130 } 131 132 /*TEST 133 134 test: 135 136 test: 137 suffix: 2 138 args: -bs 2 139 140 TEST*/ 141