1c4762a1bSJed Brown static char help[] = "Test MatMatMult() for AIJ and Dense matrices.\n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscmat.h> 4c4762a1bSJed Brown 5c4762a1bSJed Brown int main(int argc,char **argv) 6c4762a1bSJed Brown { 7c20d7725SJed Brown Mat A,B,C; 8c20d7725SJed Brown PetscInt M=10,N=5; 9c4762a1bSJed Brown PetscRandom r; 10c4762a1bSJed Brown PetscBool equal=PETSC_FALSE; 11c4762a1bSJed Brown PetscReal fill = 1.0; 12c4762a1bSJed Brown PetscInt nza,am,an; 13c4762a1bSJed Brown 14*327415f7SBarry Smith PetscFunctionBeginUser; 159566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,(char*)0,help)); 169566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL)); 179566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL)); 189566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetReal(NULL,NULL,"-fill",&fill,NULL)); 19c4762a1bSJed Brown 209566063dSJacob Faibussowitsch PetscCall(PetscRandomCreate(PETSC_COMM_WORLD,&r)); 219566063dSJacob Faibussowitsch PetscCall(PetscRandomSetFromOptions(r)); 22c4762a1bSJed Brown 23c4762a1bSJed Brown /* create a aij matrix A */ 249566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD,&A)); 259566063dSJacob Faibussowitsch PetscCall(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,N,M)); 269566063dSJacob Faibussowitsch PetscCall(MatSetType(A,MATAIJ)); 27c4762a1bSJed Brown nza = (PetscInt)(.3*M); /* num of nozeros in each row of A */ 289566063dSJacob Faibussowitsch PetscCall(MatSeqAIJSetPreallocation(A,nza,NULL)); 299566063dSJacob Faibussowitsch PetscCall(MatMPIAIJSetPreallocation(A,nza,NULL,nza,NULL)); 309566063dSJacob Faibussowitsch PetscCall(MatSetRandom(A,r)); 31c4762a1bSJed Brown 32c4762a1bSJed Brown /* create a dense matrix B */ 339566063dSJacob Faibussowitsch PetscCall(MatGetLocalSize(A,&am,&an)); 349566063dSJacob Faibussowitsch PetscCall(MatCreate(PETSC_COMM_WORLD,&B)); 359566063dSJacob Faibussowitsch PetscCall(MatSetSizes(B,PETSC_DECIDE,am,N,PETSC_DECIDE)); 369566063dSJacob Faibussowitsch PetscCall(MatSetType(B,MATDENSE)); 379566063dSJacob Faibussowitsch PetscCall(MatSeqDenseSetPreallocation(B,NULL)); 389566063dSJacob Faibussowitsch PetscCall(MatMPIDenseSetPreallocation(B,NULL)); 399566063dSJacob Faibussowitsch PetscCall(MatSetRandom(B,r)); 409566063dSJacob Faibussowitsch PetscCall(PetscRandomDestroy(&r)); 41c4762a1bSJed Brown 42c4762a1bSJed Brown /* Test MatMatMult() */ 439566063dSJacob Faibussowitsch PetscCall(MatMatMult(B,A,MAT_INITIAL_MATRIX,fill,&C)); 449566063dSJacob Faibussowitsch PetscCall(MatMatMult(B,A,MAT_REUSE_MATRIX,fill,&C)); 459566063dSJacob Faibussowitsch PetscCall(MatMatMultEqual(B,A,C,10,&equal)); 4628b400f6SJacob Faibussowitsch PetscCheck(equal,PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"C != B*A"); 47c4762a1bSJed Brown 489566063dSJacob Faibussowitsch PetscCall(MatDestroy(&C)); 499566063dSJacob Faibussowitsch PetscCall(MatDestroy(&B)); 509566063dSJacob Faibussowitsch PetscCall(MatDestroy(&A)); 519566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 52b122ec5aSJacob Faibussowitsch return 0; 53c4762a1bSJed Brown } 54c4762a1bSJed Brown 55c4762a1bSJed Brown /*TEST 56c4762a1bSJed Brown 57c4762a1bSJed Brown test: 58c4762a1bSJed Brown output_file: output/ex122.out 59c4762a1bSJed Brown 60c4762a1bSJed Brown TEST*/ 61