1c4762a1bSJed Brown static char help[] = "Basic test of various routines with SBAIJ matrices\n\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscmat.h> 4c4762a1bSJed Brown 5c4762a1bSJed Brown int main(int argc,char **argv) 6c4762a1bSJed Brown { 7c4762a1bSJed Brown PetscErrorCode ierr; 8c4762a1bSJed Brown PetscInt ia[3]={0,2,4}; 9c4762a1bSJed Brown PetscInt ja[4]={0,1,0,1}; 10c4762a1bSJed Brown PetscScalar c[16]={0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}; 11c4762a1bSJed Brown PetscMPIInt size; 12c4762a1bSJed Brown Mat ssbaij,msbaij; 13c4762a1bSJed Brown Vec x,y; 14c4762a1bSJed Brown 15c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,NULL,help);if (ierr) return ierr; 16ffc4695bSBarry Smith ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRMPI(ierr); 17*2c71b3e2SJacob Faibussowitsch PetscCheckFalse(size != 2,PETSC_COMM_WORLD,PETSC_ERR_SUP,"This is an example with two processors only!"); 18c4762a1bSJed Brown ierr = MatCreate(PETSC_COMM_SELF,&ssbaij);CHKERRQ(ierr); 19c4762a1bSJed Brown ierr = MatSetType(ssbaij,MATSEQSBAIJ);CHKERRQ(ierr); 20c4762a1bSJed Brown ierr = MatSetBlockSize(ssbaij,2);CHKERRQ(ierr); 21c4762a1bSJed Brown ierr = MatSetSizes(ssbaij,4,8,4,8);CHKERRQ(ierr); 22c4762a1bSJed Brown ierr = MatSeqSBAIJSetPreallocationCSR(ssbaij,2,ia,ja,c);CHKERRQ(ierr); 23c4762a1bSJed Brown ierr = MatCreateMPIMatConcatenateSeqMat(PETSC_COMM_WORLD,ssbaij,PETSC_DECIDE,MAT_INITIAL_MATRIX,&msbaij);CHKERRQ(ierr); 24c4762a1bSJed Brown ierr = MatView(msbaij,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 25c4762a1bSJed Brown ierr = MatDestroy(&msbaij);CHKERRQ(ierr); 26c4762a1bSJed Brown ierr = MatCreateMPIMatConcatenateSeqMat(PETSC_COMM_WORLD,ssbaij,4,MAT_INITIAL_MATRIX,&msbaij);CHKERRQ(ierr); 27c4762a1bSJed Brown ierr = MatView(msbaij,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 28c4762a1bSJed Brown ierr = MatCreateVecs(msbaij,&x,&y);CHKERRQ(ierr); 29c4762a1bSJed Brown ierr = VecSet(x,1);CHKERRQ(ierr); 30c4762a1bSJed Brown ierr = MatMult(msbaij,x,y);CHKERRQ(ierr); 31c4762a1bSJed Brown ierr = VecView(y,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 32c4762a1bSJed Brown ierr = MatMultAdd(msbaij,x,x,y);CHKERRQ(ierr); 33c4762a1bSJed Brown ierr = VecView(y,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 34c4762a1bSJed Brown ierr = MatGetDiagonal(msbaij,y);CHKERRQ(ierr); 35c4762a1bSJed Brown ierr = VecView(y,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 36c4762a1bSJed Brown ierr = VecDestroy(&x);CHKERRQ(ierr); 37c4762a1bSJed Brown ierr = VecDestroy(&y);CHKERRQ(ierr); 38c4762a1bSJed Brown ierr = MatDestroy(&msbaij);CHKERRQ(ierr); 39c4762a1bSJed Brown ierr = MatDestroy(&ssbaij);CHKERRQ(ierr); 40c4762a1bSJed Brown ierr = PetscFinalize(); 41c4762a1bSJed Brown return ierr; 42c4762a1bSJed Brown } 43c4762a1bSJed Brown 44c4762a1bSJed Brown /*TEST 45c4762a1bSJed Brown 46c4762a1bSJed Brown test: 47c4762a1bSJed Brown nsize: 2 48c4762a1bSJed Brown filter: sed "s?\.??g" 49c4762a1bSJed Brown 50c4762a1bSJed Brown TEST*/ 51