128   Mat            A2 = NULL;  in TimedSpMV()  local
147       PetscCall(MatDestroy(&A2));  in TimedSpMV()
148       PetscCall(MatDuplicate(A, MAT_COPY_VALUES, &A2));  in TimedSpMV()
149       PetscCall(MatSetType(A2, petscmatformat));  in TimedSpMV()
150 …PetscCall(MatSetFromOptions(A2)); // This allows to change parameters such as slice height in SpMV…  in TimedSpMV()
151     } else A2 = A;  in TimedSpMV()
155     PetscCall(MatMult(A2, b, u));  in TimedSpMV()
163   if (repetitions > 0 && use_gpu) PetscCall(MatDestroy(&A2));  in TimedSpMV()
169   Mat           A2 = NULL;  in WarmUpDevice()  local
185   PetscCall(MatDuplicate(A, MAT_COPY_VALUES, &A2));  in WarmUpDevice()
186   PetscCall(MatSetType(A2, petscmatformat));  in WarmUpDevice()
189   PetscCall(MatMult(A2, b, u));  in WarmUpDevice()
192   PetscCall(MatDestroy(&A2));  in WarmUpDevice()