1c4762a1bSJed Brown static char help[] = "Test MatCreateNest with block sizes.\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscmat.h> 4c4762a1bSJed Brown 5c4762a1bSJed Brown int main(int argc, char **argv) 6c4762a1bSJed Brown { 7c4762a1bSJed Brown Mat A, B, C, mats[2]; 8c4762a1bSJed Brown ISLocalToGlobalMapping cmap, rmap; 9c4762a1bSJed Brown const PetscInt indices[1] = {0}; 10c4762a1bSJed Brown PetscMPIInt size; 11c4762a1bSJed Brown PetscErrorCode ierr; 12c4762a1bSJed Brown 13c4762a1bSJed Brown ierr = PetscInitialize(&argc, &argv, NULL, help); if (ierr) return ierr; 14*5f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size)); 152c71b3e2SJacob Faibussowitsch PetscCheckFalse(size > 1,PETSC_COMM_WORLD,PETSC_ERR_ARG_WRONG,"Only coded for one process"); 16*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatCreate(PETSC_COMM_WORLD, &A)); 17*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetSizes(A, PETSC_DECIDE, PETSC_DECIDE, 1, 2)); 18*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetBlockSizes(A, 1, 2)); 19*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetType(A,MATAIJ)); 20*5f80ce2aSJacob Faibussowitsch CHKERRQ(ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD, 2, 1, indices,PETSC_COPY_VALUES, &cmap)); 21*5f80ce2aSJacob Faibussowitsch CHKERRQ(ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD, 1, 1, indices,PETSC_COPY_VALUES, &rmap)); 22*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetLocalToGlobalMapping(A, rmap, cmap)); 23*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatCreate(PETSC_COMM_WORLD, &B)); 24*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetSizes(B, PETSC_DECIDE, PETSC_DECIDE, 1, 1)); 25*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetBlockSizes(A, 1, 1)); 26*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetType(B,MATAIJ)); 27*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetLocalToGlobalMapping(B, rmap, rmap)); 28*5f80ce2aSJacob Faibussowitsch CHKERRQ(ISLocalToGlobalMappingDestroy(&rmap)); 29*5f80ce2aSJacob Faibussowitsch CHKERRQ(ISLocalToGlobalMappingDestroy(&cmap)); 30*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetUp(A)); 31*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetUp(B)); 32c4762a1bSJed Brown mats[0] = A; 33c4762a1bSJed Brown mats[1] = B; 34*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatCreateNest(PETSC_COMM_WORLD, 1, NULL, 2, NULL, mats,&C)); 35*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatSetUp(C)); 36*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatAssemblyBegin(C, MAT_FINAL_ASSEMBLY)); 37*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatAssemblyEnd(C, MAT_FINAL_ASSEMBLY)); 38*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatView(C, NULL)); 39*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&C)); 40*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&B)); 41*5f80ce2aSJacob Faibussowitsch CHKERRQ(MatDestroy(&A)); 42c4762a1bSJed Brown ierr = PetscFinalize(); 43c4762a1bSJed Brown return ierr; 44c4762a1bSJed Brown } 45c4762a1bSJed Brown 46c4762a1bSJed Brown /*TEST 47c4762a1bSJed Brown 48c4762a1bSJed Brown test: 49c4762a1bSJed Brown 50c4762a1bSJed Brown TEST*/ 51