1*c4762a1bSJed Brown static char help[] = "Tests MatCopy() for SHELL matrices\n\n"; 2*c4762a1bSJed Brown 3*c4762a1bSJed Brown #include <petscmat.h> 4*c4762a1bSJed Brown 5*c4762a1bSJed Brown typedef struct _n_User *User; 6*c4762a1bSJed Brown struct _n_User { 7*c4762a1bSJed Brown Mat A; 8*c4762a1bSJed Brown }; 9*c4762a1bSJed Brown 10*c4762a1bSJed Brown static PetscErrorCode MatMult_User(Mat A,Vec X,Vec Y) 11*c4762a1bSJed Brown { 12*c4762a1bSJed Brown User user; 13*c4762a1bSJed Brown PetscErrorCode ierr; 14*c4762a1bSJed Brown 15*c4762a1bSJed Brown PetscFunctionBegin; 16*c4762a1bSJed Brown ierr = MatShellGetContext(A,&user);CHKERRQ(ierr); 17*c4762a1bSJed Brown ierr = MatMult(user->A,X,Y);CHKERRQ(ierr); 18*c4762a1bSJed Brown PetscFunctionReturn(0); 19*c4762a1bSJed Brown } 20*c4762a1bSJed Brown 21*c4762a1bSJed Brown static PetscErrorCode MatCopy_User(Mat A,Mat B,MatStructure str) 22*c4762a1bSJed Brown { 23*c4762a1bSJed Brown User userA,userB; 24*c4762a1bSJed Brown PetscErrorCode ierr; 25*c4762a1bSJed Brown 26*c4762a1bSJed Brown PetscFunctionBegin; 27*c4762a1bSJed Brown ierr = MatShellGetContext(A,&userA);CHKERRQ(ierr); 28*c4762a1bSJed Brown if (userA) { 29*c4762a1bSJed Brown ierr = PetscNew(&userB);CHKERRQ(ierr); 30*c4762a1bSJed Brown ierr = MatDuplicate(userA->A,MAT_COPY_VALUES,&userB->A);CHKERRQ(ierr); 31*c4762a1bSJed Brown ierr = MatShellSetContext(B, userB);CHKERRQ(ierr); 32*c4762a1bSJed Brown } 33*c4762a1bSJed Brown PetscFunctionReturn(0); 34*c4762a1bSJed Brown } 35*c4762a1bSJed Brown 36*c4762a1bSJed Brown static PetscErrorCode MatDestroy_User(Mat A) 37*c4762a1bSJed Brown { 38*c4762a1bSJed Brown User user; 39*c4762a1bSJed Brown PetscErrorCode ierr; 40*c4762a1bSJed Brown 41*c4762a1bSJed Brown PetscFunctionBegin; 42*c4762a1bSJed Brown ierr = MatShellGetContext(A, &user);CHKERRQ(ierr); 43*c4762a1bSJed Brown if (user) { 44*c4762a1bSJed Brown ierr = MatDestroy(&user->A);CHKERRQ(ierr); 45*c4762a1bSJed Brown ierr = PetscFree(user);CHKERRQ(ierr); 46*c4762a1bSJed Brown } 47*c4762a1bSJed Brown PetscFunctionReturn(0); 48*c4762a1bSJed Brown } 49*c4762a1bSJed Brown 50*c4762a1bSJed Brown int main(int argc,char **args) 51*c4762a1bSJed Brown { 52*c4762a1bSJed Brown const PetscScalar xvals[] = {11,13},yvals[] = {17,19}; 53*c4762a1bSJed Brown const PetscInt inds[] = {0,1}; 54*c4762a1bSJed Brown PetscScalar avals[] = {2,3,5,7}; 55*c4762a1bSJed Brown Mat S1,S2; 56*c4762a1bSJed Brown Vec X,Y; 57*c4762a1bSJed Brown User user; 58*c4762a1bSJed Brown PetscErrorCode ierr; 59*c4762a1bSJed Brown 60*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 61*c4762a1bSJed Brown 62*c4762a1bSJed Brown ierr = PetscNew(&user);CHKERRQ(ierr); 63*c4762a1bSJed Brown ierr = MatCreateSeqAIJ(PETSC_COMM_WORLD,2,2,2,NULL,&user->A);CHKERRQ(ierr); 64*c4762a1bSJed Brown ierr = MatSetUp(user->A);CHKERRQ(ierr); 65*c4762a1bSJed Brown ierr = MatSetValues(user->A,2,inds,2,inds,avals,INSERT_VALUES);CHKERRQ(ierr); 66*c4762a1bSJed Brown ierr = MatAssemblyBegin(user->A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 67*c4762a1bSJed Brown ierr = MatAssemblyEnd(user->A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); 68*c4762a1bSJed Brown ierr = VecCreateSeq(PETSC_COMM_WORLD,2,&X);CHKERRQ(ierr); 69*c4762a1bSJed Brown ierr = VecSetValues(X,2,inds,xvals,INSERT_VALUES);CHKERRQ(ierr); 70*c4762a1bSJed Brown ierr = VecAssemblyBegin(X);CHKERRQ(ierr); 71*c4762a1bSJed Brown ierr = VecAssemblyEnd(X);CHKERRQ(ierr); 72*c4762a1bSJed Brown ierr = VecDuplicate(X,&Y);CHKERRQ(ierr); 73*c4762a1bSJed Brown ierr = VecSetValues(Y,2,inds,yvals,INSERT_VALUES);CHKERRQ(ierr); 74*c4762a1bSJed Brown ierr = VecAssemblyBegin(Y);CHKERRQ(ierr); 75*c4762a1bSJed Brown ierr = VecAssemblyEnd(Y);CHKERRQ(ierr); 76*c4762a1bSJed Brown 77*c4762a1bSJed Brown ierr = MatCreateShell(PETSC_COMM_WORLD,2,2,2,2,user,&S1);CHKERRQ(ierr); 78*c4762a1bSJed Brown ierr = MatSetUp(S1);CHKERRQ(ierr); 79*c4762a1bSJed Brown ierr = MatShellSetOperation(S1,MATOP_MULT,(void (*)(void))MatMult_User);CHKERRQ(ierr); 80*c4762a1bSJed Brown ierr = MatShellSetOperation(S1,MATOP_COPY,(void (*)(void))MatCopy_User);CHKERRQ(ierr); 81*c4762a1bSJed Brown ierr = MatShellSetOperation(S1,MATOP_DESTROY,(void (*)(void))MatDestroy_User);CHKERRQ(ierr); 82*c4762a1bSJed Brown ierr = MatCreateShell(PETSC_COMM_WORLD,2,2,2,2,NULL,&S2);CHKERRQ(ierr); 83*c4762a1bSJed Brown ierr = MatSetUp(S2);CHKERRQ(ierr); 84*c4762a1bSJed Brown ierr = MatShellSetOperation(S2,MATOP_MULT,(void (*)(void))MatMult_User);CHKERRQ(ierr); 85*c4762a1bSJed Brown ierr = MatShellSetOperation(S2,MATOP_COPY,(void (*)(void))MatCopy_User);CHKERRQ(ierr); 86*c4762a1bSJed Brown ierr = MatShellSetOperation(S2,MATOP_DESTROY,(void (*)(void))MatDestroy_User);CHKERRQ(ierr); 87*c4762a1bSJed Brown 88*c4762a1bSJed Brown ierr = MatScale(S1,31);CHKERRQ(ierr); 89*c4762a1bSJed Brown ierr = MatShift(S1,37);CHKERRQ(ierr); 90*c4762a1bSJed Brown ierr = MatDiagonalScale(S1,X,Y);CHKERRQ(ierr); 91*c4762a1bSJed Brown ierr = MatCopy(S1,S2,SAME_NONZERO_PATTERN);CHKERRQ(ierr); 92*c4762a1bSJed Brown ierr = MatMult(S1,X,Y);CHKERRQ(ierr); 93*c4762a1bSJed Brown ierr = VecView(Y,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 94*c4762a1bSJed Brown ierr = MatMult(S2,X,Y);CHKERRQ(ierr); 95*c4762a1bSJed Brown ierr = VecView(Y,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 96*c4762a1bSJed Brown 97*c4762a1bSJed Brown ierr = MatDestroy(&S1);CHKERRQ(ierr); 98*c4762a1bSJed Brown ierr = MatDestroy(&S2);CHKERRQ(ierr); 99*c4762a1bSJed Brown ierr = VecDestroy(&X);CHKERRQ(ierr); 100*c4762a1bSJed Brown ierr = VecDestroy(&Y);CHKERRQ(ierr); 101*c4762a1bSJed Brown ierr = PetscFinalize(); 102*c4762a1bSJed Brown return ierr; 103*c4762a1bSJed Brown } 104*c4762a1bSJed Brown 105*c4762a1bSJed Brown /*TEST 106*c4762a1bSJed Brown 107*c4762a1bSJed Brown test: 108*c4762a1bSJed Brown args: -malloc_dump 109*c4762a1bSJed Brown 110*c4762a1bSJed Brown TEST*/ 111