8   Mat       A, U, V, LR, X, LRe;  in main()  local
32   PetscCall(MatCreate(PETSC_COMM_WORLD, &U));  in main()
33   PetscCall(MatSetSizes(U, PETSC_DECIDE, PETSC_DECIDE, M, 3));  in main()
34   PetscCall(MatSetType(U, MATDENSE));  in main()
35   PetscCall(MatSetOptionsPrefix(U, "U_"));  in main()
36   PetscCall(MatSetFromOptions(U));  in main()
37   PetscCall(MatSetUp(U));  in main()
38   PetscCall(MatSetRandom(U, NULL));  in main()
66     PetscCall(MatCreateLRC(NULL, U, c, V, &LR));  in main()
69     PetscCall(MatCreateLRC(A, U, c, V, &LR));  in main()
78   PetscCall(MatMatMult(U, X, MAT_INITIAL_MATRIX, PETSC_DETERMINE, &LRe));  in main()
104   PetscCall(MatDestroy(&U));  in main()