Is it possible to create preconditioner by view function like csr_matrix_view ?

[Ricky]

Hello!

I'm new to use CUSP.

I've wrote a program refers to csr_raw.cu,

but I need to solve the matrix by cg which has a preconditioner.( cusp::precond::aggregation::smoothed_aggregation<int, double, cusp::device_memory> M(A) )

I wonder is there any way to create a preconditioner by view function like csr_matrix_view.

Thanks a lot.