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 PetscErrorCode ierr; 10c4762a1bSJed Brown PetscRandom r; 11c4762a1bSJed Brown PetscBool equal=PETSC_FALSE; 12c4762a1bSJed Brown PetscReal fill = 1.0; 13c4762a1bSJed Brown PetscInt nza,am,an; 14c4762a1bSJed Brown 15c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr; 16*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL)); 17*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL)); 18*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscOptionsGetReal(NULL,NULL,"-fill",&fill,NULL)); 19c4762a1bSJed Brown 20*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscRandomCreate(PETSC_COMM_WORLD,&r)); 21*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscRandomSetFromOptions(r)); 22c4762a1bSJed Brown 23c4762a1bSJed Brown /* create a aij matrix A */ 24*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatCreate(PETSC_COMM_WORLD,&A)); 25*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetSizes(A,PETSC_DECIDE,PETSC_DECIDE,N,M)); 26*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetType(A,MATAIJ)); 27c4762a1bSJed Brown nza = (PetscInt)(.3*M); /* num of nozeros in each row of A */ 28*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSeqAIJSetPreallocation(A,nza,NULL)); 29*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatMPIAIJSetPreallocation(A,nza,NULL,nza,NULL)); 30*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetRandom(A,r)); 31c4762a1bSJed Brown 32c4762a1bSJed Brown /* create a dense matrix B */ 33*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatGetLocalSize(A,&am,&an)); 34*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatCreate(PETSC_COMM_WORLD,&B)); 35*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetSizes(B,PETSC_DECIDE,am,N,PETSC_DECIDE)); 36*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetType(B,MATDENSE)); 37*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSeqDenseSetPreallocation(B,NULL)); 38*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatMPIDenseSetPreallocation(B,NULL)); 39*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetRandom(B,r)); 40*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscRandomDestroy(&r)); 41*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatAssemblyBegin(B,MAT_FINAL_ASSEMBLY)); 42*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatAssemblyEnd(B,MAT_FINAL_ASSEMBLY)); 43c4762a1bSJed Brown 44c4762a1bSJed Brown /* Test MatMatMult() */ 45*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatMatMult(B,A,MAT_INITIAL_MATRIX,fill,&C)); 46*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatMatMult(B,A,MAT_REUSE_MATRIX,fill,&C)); 47*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatMatMultEqual(B,A,C,10,&equal)); 482c71b3e2SJacob Faibussowitsch PetscCheckFalse(!equal,PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE,"C != B*A"); 49c4762a1bSJed Brown 50*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&C)); 51*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&B)); 52*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&A)); 53c4762a1bSJed Brown ierr = PetscFinalize(); 54c4762a1bSJed Brown return ierr; 55c4762a1bSJed Brown } 56c4762a1bSJed Brown 57c4762a1bSJed Brown /*TEST 58c4762a1bSJed Brown 59c4762a1bSJed Brown test: 60c4762a1bSJed Brown output_file: output/ex122.out 61c4762a1bSJed Brown 62c4762a1bSJed Brown TEST*/ 63