1 2 static char help[] = "Test interface of Elemental. \n\n"; 3 4 #include <petscmat.h> 5 6 int main(int argc,char **args) 7 { 8 Mat C,Caij; 9 PetscInt i,j,m = 5,n,nrows,ncols; 10 const PetscInt *rows,*cols; 11 IS isrows,iscols; 12 PetscBool flg,Test_MatMatMult=PETSC_FALSE,mats_view=PETSC_FALSE; 13 PetscScalar *v; 14 PetscMPIInt rank,size; 15 16 PetscFunctionBeginUser; 17 PetscCall(PetscInitialize(&argc,&args,(char*)0,help)); 18 PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 19 PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size)); 20 PetscCall(PetscOptionsHasName(NULL,NULL,"-mats_view",&mats_view)); 21 22 /* Get local block or element size*/ 23 PetscCall(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL)); 24 n = m; 25 PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL)); 26 27 PetscCall(MatCreate(PETSC_COMM_WORLD,&C)); 28 PetscCall(MatSetSizes(C,m,n,PETSC_DECIDE,PETSC_DECIDE)); 29 PetscCall(MatSetType(C,MATELEMENTAL)); 30 PetscCall(MatSetFromOptions(C)); 31 PetscCall(MatSetUp(C)); 32 33 PetscCall(PetscOptionsHasName(NULL,NULL,"-row_oriented",&flg)); 34 if (flg) PetscCall(MatSetOption(C,MAT_ROW_ORIENTED,PETSC_TRUE)); 35 PetscCall(MatGetOwnershipIS(C,&isrows,&iscols)); 36 PetscCall(PetscOptionsHasName(NULL,NULL,"-Cexp_view_ownership",&flg)); 37 if (flg) { /* View ownership of explicit C */ 38 IS tmp; 39 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Ownership of explicit C:\n")); 40 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Row index set:\n")); 41 PetscCall(ISOnComm(isrows,PETSC_COMM_WORLD,PETSC_USE_POINTER,&tmp)); 42 PetscCall(ISView(tmp,PETSC_VIEWER_STDOUT_WORLD)); 43 PetscCall(ISDestroy(&tmp)); 44 PetscCall(PetscPrintf(PETSC_COMM_WORLD,"Column index set:\n")); 45 PetscCall(ISOnComm(iscols,PETSC_COMM_WORLD,PETSC_USE_POINTER,&tmp)); 46 PetscCall(ISView(tmp,PETSC_VIEWER_STDOUT_WORLD)); 47 PetscCall(ISDestroy(&tmp)); 48 } 49 50 /* Set local matrix entries */ 51 PetscCall(ISGetLocalSize(isrows,&nrows)); 52 PetscCall(ISGetIndices(isrows,&rows)); 53 PetscCall(ISGetLocalSize(iscols,&ncols)); 54 PetscCall(ISGetIndices(iscols,&cols)); 55 PetscCall(PetscMalloc1(nrows*ncols,&v)); 56 for (i=0; i<nrows; i++) { 57 for (j=0; j<ncols; j++) { 58 /*v[i*ncols+j] = (PetscReal)(rank);*/ 59 v[i*ncols+j] = (PetscReal)(rank*10000+100*rows[i]+cols[j]); 60 } 61 } 62 PetscCall(MatSetValues(C,nrows,rows,ncols,cols,v,INSERT_VALUES)); 63 PetscCall(ISRestoreIndices(isrows,&rows)); 64 PetscCall(ISRestoreIndices(iscols,&cols)); 65 PetscCall(MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY)); 66 PetscCall(MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY)); 67 68 /* Test MatView() */ 69 if (mats_view) PetscCall(MatView(C,PETSC_VIEWER_STDOUT_WORLD)); 70 71 /* Test MatMissingDiagonal() */ 72 PetscCall(MatMissingDiagonal(C,&flg,NULL)); 73 PetscCheck(!flg,PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"MatMissingDiagonal() did not return false!"); 74 75 /* Set unowned matrix entries - add subdiagonals and diagonals from proc[0] */ 76 if (rank == 0) { 77 PetscInt M,N,cols[2]; 78 PetscCall(MatGetSize(C,&M,&N)); 79 for (i=0; i<M; i++) { 80 cols[0] = i; v[0] = i + 0.5; 81 cols[1] = i-1; v[1] = 0.5; 82 if (i) { 83 PetscCall(MatSetValues(C,1,&i,2,cols,v,ADD_VALUES)); 84 } else { 85 PetscCall(MatSetValues(C,1,&i,1,&i,v,ADD_VALUES)); 86 } 87 } 88 } 89 PetscCall(MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY)); 90 PetscCall(MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY)); 91 92 /* Test MatMult() */ 93 PetscCall(MatComputeOperator(C,MATAIJ,&Caij)); 94 PetscCall(MatMultEqual(C,Caij,5,&flg)); 95 PetscCheck(flg,PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"C != Caij. MatMultEqual() fails"); 96 PetscCall(MatMultTransposeEqual(C,Caij,5,&flg)); 97 PetscCheck(flg,PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"C != Caij. MatMultTransposeEqual() fails"); 98 99 /* Test MatMultAdd() and MatMultTransposeAddEqual() */ 100 PetscCall(MatMultAddEqual(C,Caij,5,&flg)); 101 PetscCheck(flg,PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"C != Caij. MatMultAddEqual() fails"); 102 PetscCall(MatMultTransposeAddEqual(C,Caij,5,&flg)); 103 PetscCheck(flg,PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"C != Caij. MatMultTransposeAddEqual() fails"); 104 105 /* Test MatMatMult() */ 106 PetscCall(PetscOptionsHasName(NULL,NULL,"-test_matmatmult",&Test_MatMatMult)); 107 if (Test_MatMatMult) { 108 Mat CCelem,CCaij; 109 PetscCall(MatMatMult(C,C,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&CCelem)); 110 PetscCall(MatMatMult(Caij,Caij,MAT_INITIAL_MATRIX,PETSC_DEFAULT,&CCaij)); 111 PetscCall(MatMultEqual(CCelem,CCaij,5,&flg)); 112 PetscCheck(flg,PETSC_COMM_SELF,PETSC_ERR_ARG_NOTSAMETYPE,"CCelem != CCaij. MatMatMult() fails"); 113 PetscCall(MatDestroy(&CCaij)); 114 PetscCall(MatDestroy(&CCelem)); 115 } 116 117 PetscCall(PetscFree(v)); 118 PetscCall(ISDestroy(&isrows)); 119 PetscCall(ISDestroy(&iscols)); 120 PetscCall(MatDestroy(&C)); 121 PetscCall(MatDestroy(&Caij)); 122 PetscCall(PetscFinalize()); 123 return 0; 124 } 125 126 /*TEST 127 128 test: 129 nsize: 2 130 requires: elemental 131 args: -mat_type elemental -m 2 -n 3 132 133 test: 134 suffix: 2 135 nsize: 6 136 requires: elemental 137 args: -mat_type elemental -m 2 -n 2 138 139 test: 140 suffix: 3 141 nsize: 6 142 requires: elemental 143 args: -mat_type elemental -m 2 -n 2 -test_matmatmult 144 output_file: output/ex38_2.out 145 146 TEST*/ 147