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