1 static char help[] = "Test MatMatMult() for AIJ and Dense matrices.\n\n"; 2 3 #include <petscmat.h> 4 5 int main(int argc,char **argv) 6 { 7 Mat A,B,C,D,AT; 8 PetscInt i,M,N,Istart,Iend,n=7,j,J,Ii,m=8,am,an; 9 PetscScalar v; 10 PetscErrorCode ierr; 11 PetscRandom r; 12 PetscBool equal=PETSC_FALSE,flg; 13 PetscReal fill = 1.0,norm; 14 PetscMPIInt size; 15 16 ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 17 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-m",&m,NULL)); 18 CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-n",&n,NULL)); 19 CHKERRQ(PetscOptionsGetReal(NULL,NULL,"-fill",&fill,NULL)); 20 21 CHKERRQ(PetscRandomCreate(PETSC_COMM_WORLD,&r)); 22 CHKERRQ(PetscRandomSetFromOptions(r)); 23 24 /* Create a aij matrix A */ 25 M = N = m*n; 26 CHKERRQ(MatCreate(PETSC_COMM_WORLD,&A)); 27 CHKERRQ(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,M,N)); 28 CHKERRQ(MatSetType(A,MATAIJ)); 29 CHKERRQ(MatSetFromOptions(A)); 30 CHKERRQ(MatMPIAIJSetPreallocation(A,5,NULL,5,NULL)); 31 CHKERRQ(MatSeqAIJSetPreallocation(A,5,NULL)); 32 33 CHKERRQ(MatGetOwnershipRange(A,&Istart,&Iend)); 34 am = Iend - Istart; 35 for (Ii=Istart; Ii<Iend; Ii++) { 36 v = -1.0; i = Ii/n; j = Ii - i*n; 37 if (i>0) {J = Ii - n; CHKERRQ(MatSetValues(A,1,&Ii,1,&J,&v,INSERT_VALUES));} 38 if (i<m-1) {J = Ii + n; CHKERRQ(MatSetValues(A,1,&Ii,1,&J,&v,INSERT_VALUES));} 39 if (j>0) {J = Ii - 1; CHKERRQ(MatSetValues(A,1,&Ii,1,&J,&v,INSERT_VALUES));} 40 if (j<n-1) {J = Ii + 1; CHKERRQ(MatSetValues(A,1,&Ii,1,&J,&v,INSERT_VALUES));} 41 v = 4.0; CHKERRQ(MatSetValues(A,1,&Ii,1,&Ii,&v,INSERT_VALUES)); 42 } 43 CHKERRQ(MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY)); 44 CHKERRQ(MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY)); 45 46 /* Create a dense matrix B */ 47 CHKERRQ(MatGetLocalSize(A,&am,&an)); 48 CHKERRQ(MatCreate(PETSC_COMM_WORLD,&B)); 49 CHKERRQ(MatSetSizes(B,an,PETSC_DECIDE,PETSC_DECIDE,M)); 50 CHKERRQ(MatSetType(B,MATDENSE)); 51 CHKERRQ(MatSeqDenseSetPreallocation(B,NULL)); 52 CHKERRQ(MatMPIDenseSetPreallocation(B,NULL)); 53 CHKERRQ(MatSetFromOptions(B)); 54 CHKERRQ(MatSetRandom(B,r)); 55 CHKERRQ(PetscRandomDestroy(&r)); 56 CHKERRQ(MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY)); 57 CHKERRQ(MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY)); 58 59 /* Test reuse of user-provided dense C (unassembled) -- not recommended usage */ 60 CHKERRQ(MatCreate(PETSC_COMM_WORLD,&C)); 61 CHKERRQ(MatSetType(C,MATDENSE)); 62 CHKERRQ(MatSetSizes(C,am,PETSC_DECIDE,PETSC_DECIDE,N)); 63 CHKERRQ(MatSetFromOptions(C)); 64 CHKERRQ(MatSetUp(C)); 65 CHKERRQ(MatZeroEntries(C)); 66 CHKERRQ(MatMatMult(A,B,MAT_REUSE_MATRIX,fill,&C)); 67 CHKERRQ(MatNorm(C,NORM_INFINITY,&norm)); 68 CHKERRQ(MatDestroy(&C)); 69 70 /* Test C = A*B (aij*dense) */ 71 CHKERRQ(MatMatMult(A,B,MAT_INITIAL_MATRIX,fill,&C)); 72 CHKERRQ(MatMatMult(A,B,MAT_REUSE_MATRIX,fill,&C)); 73 74 /* Test developer API */ 75 CHKERRQ(MatProductCreate(A,B,NULL,&D)); 76 CHKERRQ(MatProductSetType(D,MATPRODUCT_AB)); 77 CHKERRQ(MatProductSetAlgorithm(D,"default")); 78 CHKERRQ(MatProductSetFill(D,fill)); 79 CHKERRQ(MatProductSetFromOptions(D)); 80 CHKERRQ(MatProductSymbolic(D)); 81 for (i=0; i<2; i++) { 82 CHKERRQ(MatProductNumeric(D)); 83 } 84 CHKERRQ(MatEqual(C,D,&equal)); 85 PetscCheckFalse(!equal,PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"C != D"); 86 CHKERRQ(MatDestroy(&D)); 87 88 /* Test D = AT*B (transpose(aij)*dense) */ 89 CHKERRQ(MatCreateTranspose(A,&AT)); 90 CHKERRQ(MatMatMult(AT,B,MAT_INITIAL_MATRIX,fill,&D)); 91 CHKERRQ(MatMatMultEqual(AT,B,D,10,&equal)); 92 PetscCheckFalse(!equal,PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"D != AT*B (transpose(aij)*dense)"); 93 CHKERRQ(MatDestroy(&D)); 94 CHKERRQ(MatDestroy(&AT)); 95 96 /* Test D = C*A (dense*aij) */ 97 CHKERRQ(MatMatMult(C,A,MAT_INITIAL_MATRIX,fill,&D)); 98 CHKERRQ(MatMatMult(C,A,MAT_REUSE_MATRIX,fill,&D)); 99 CHKERRQ(MatMatMultEqual(C,A,D,10,&equal)); 100 PetscCheckFalse(!equal,PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"D != C*A (dense*aij)"); 101 CHKERRQ(MatDestroy(&D)); 102 103 /* Test D = A*C (aij*dense) */ 104 CHKERRQ(MatMatMult(A,C,MAT_INITIAL_MATRIX,fill,&D)); 105 CHKERRQ(MatMatMult(A,C,MAT_REUSE_MATRIX,fill,&D)); 106 CHKERRQ(MatMatMultEqual(A,C,D,10,&equal)); 107 PetscCheckFalse(!equal,PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"D != A*C (aij*dense)"); 108 CHKERRQ(MatDestroy(&D)); 109 110 /* Test D = B*C (dense*dense) */ 111 CHKERRMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size)); 112 if (size == 1) { 113 CHKERRQ(MatMatMult(B,C,MAT_INITIAL_MATRIX,fill,&D)); 114 CHKERRQ(MatMatMult(B,C,MAT_REUSE_MATRIX,fill,&D)); 115 CHKERRQ(MatMatMultEqual(B,C,D,10,&equal)); 116 PetscCheckFalse(!equal,PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"D != B*C (dense*dense)"); 117 CHKERRQ(MatDestroy(&D)); 118 } 119 120 /* Test D = B*C^T (dense*dense) */ 121 CHKERRQ(MatMatTransposeMult(B,C,MAT_INITIAL_MATRIX,fill,&D)); 122 CHKERRQ(MatMatTransposeMult(B,C,MAT_REUSE_MATRIX,fill,&D)); 123 CHKERRQ(MatMatTransposeMultEqual(B,C,D,10,&equal)); 124 PetscCheckFalse(!equal,PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"D != B*C^T (dense*dense)"); 125 CHKERRQ(MatDestroy(&D)); 126 127 /* Test MatProductCreateWithMat() and reuse C and B for B = A*C */ 128 flg = PETSC_FALSE; 129 CHKERRQ(PetscOptionsHasName(NULL,NULL,"-test_userAPI",&flg)); 130 if (flg) { 131 /* user driver */ 132 CHKERRQ(MatMatMult(A,C,MAT_REUSE_MATRIX,fill,&B)); 133 } else { 134 /* clear internal data structures related with previous products to avoid circular references */ 135 CHKERRQ(MatProductClear(A)); 136 CHKERRQ(MatProductClear(B)); 137 CHKERRQ(MatProductClear(C)); 138 CHKERRQ(MatProductCreateWithMat(A,C,NULL,B)); 139 CHKERRQ(MatProductSetType(B,MATPRODUCT_AB)); 140 CHKERRQ(MatProductSetFromOptions(B)); 141 CHKERRQ(MatProductSymbolic(B)); 142 CHKERRQ(MatProductNumeric(B)); 143 } 144 145 CHKERRQ(MatDestroy(&C)); 146 CHKERRQ(MatDestroy(&B)); 147 CHKERRQ(MatDestroy(&A)); 148 ierr = PetscFinalize(); 149 return ierr; 150 } 151 152 /*TEST 153 154 test: 155 args: -M 10 -N 10 156 output_file: output/ex109.out 157 158 test: 159 suffix: 2 160 nsize: 3 161 output_file: output/ex109.out 162 163 test: 164 suffix: 3 165 nsize: 2 166 args: -matmattransmult_mpidense_mpidense_via cyclic 167 output_file: output/ex109.out 168 169 test: 170 suffix: 4 171 args: -test_userAPI 172 output_file: output/ex109.out 173 174 test: 175 suffix: 5 176 nsize: 3 177 args: -test_userAPI 178 output_file: output/ex109.out 179 180 TEST*/ 181