[petsc-users] VecGetValues get vector values at arbitrary locations

[RenZhengYong]

Dear  Wu,

This might help:

http://www.mcs.anl.gov/petsc/documentation/faq.html#mpi-vec-to-seq-vec
How do I collect all the values from a parallel PETSc vector into a
sequential vector on each processor?
How do I collect all the values from a parallel PETSc vector into a vector
on the zeroth processor?
Regards,
Zhengyong

On Fri, Aug 17, 2012 at 7:13 PM, Panruo Wu <pwu at mymail.mines.edu> wrote:

> Dear PetSc developers and users,
>
> I want to access a Petsc Vec v at index n whose value
> is not necessarily stored in the same processor.
> I noted that the current VecGetValues cannot do that.  Do you have
> any suggestions on how I can access v(n) from arbitrary
> processors(in the same communicator of course)?
>
> Thanks,
>
> best wishes,
> Panruo Wu
>



-- 
Zhengyong Ren
AUG Group, Institute of Geophysics
Department of Geosciences, ETH Zurich
NO H 47 Sonneggstrasse 5
CH-8092, Zürich, Switzerland
Tel: +41 44 633 37561
e-mail: zhengyong.ren at aug.ig.erdw.ethz.ch
Gmail: renzhengyong at gmail.com
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