8   Mat                  A, R, C, C_dense, C_sparse, Rt_dense, P, PtAP;  in main()  local
51   PetscCall(MatCreate(PETSC_COMM_SELF, &R));  in main()
52   PetscCall(MatSetSizes(R, 2, 4, 2, 4));  in main()
53   PetscCall(MatSetType(R, MATSEQAIJ));  in main()
54   PetscCall(MatSetFromOptions(R));  in main()
55   PetscCall(MatSetUp(R));  in main()
58   PetscCall(MatSetValues(R, 1, &row, 1, &col, &one, ADD_VALUES));  in main()
61   PetscCall(MatSetValues(R, 1, &row, 1, &col, &one, ADD_VALUES));  in main()
65   PetscCall(MatSetValues(R, 1, &row, 1, &col, &one, ADD_VALUES));  in main()
68   PetscCall(MatSetValues(R, 1, &row, 1, &col, &one, ADD_VALUES));  in main()
71   PetscCall(MatSetValues(R, 1, &row, 1, &col, &one, ADD_VALUES));  in main()
72   PetscCall(MatAssemblyBegin(R, MAT_FINAL_ASSEMBLY));  in main()
73   PetscCall(MatAssemblyEnd(R, MAT_FINAL_ASSEMBLY));  in main()
74   PetscCall(MatSetOptionsPrefix(R, "R_"));  in main()
75   PetscCall(MatView(R, PETSC_VIEWER_STDOUT_WORLD));  in main()
79   PetscCall(MatMatTransposeMult(A, R, MAT_INITIAL_MATRIX, 2.0, &C));  in main()
105   PetscCall(MatTransColoringApplySpToDen(matcoloring, R, Rt_dense));  in main()
127   PetscCall(MatTranspose(R, MAT_INITIAL_MATRIX, &P));  in main()
134   PetscCall(MatRARt(A, R, MAT_INITIAL_MATRIX, 2.0, &C));  in main()
135   PetscCall(MatRARt(A, R, MAT_REUSE_MATRIX, 2.0, &C));  in main()
142   PetscCall(MatDestroy(&R));  in main()