/lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110427/742187be/attachment.htm>
x27;t
propagate up correctly).
http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-dev/docs/manualpages/Sys/CHKERRQ.html
-- next part --
An HTML attachment was scrubbed...
URL:
<http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110427/1a638b5f/attachment.htm>
with Petsc's built
in functions? Thanks.
Best,
Xiangdong
-- next part --
An HTML attachment was scrubbed...
URL:
<http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110427/bf0be569/attachment.htm>
On Apr 27, 2011, at 3:35 PM, Xiangdong Liang wrote:
> Hello everyone,
>
> I have a problem with creating a new large vector via combining existing
> small vectors. Suppose I have two vectors v1 and v2 (size n-by-1) already. I
> want to have a new vector vout (size 2n-by-1) with vout(1:n) = v1
cCreate and
MatCreate. they are supposed to return PetscErrorCode. However, I still get
"warning: return makes pointer from integer without a cast" for these
built-in functions.
>
> http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-dev/docs/manualpages/Sys/CHKERRQ.html
>
-- next part --
An HTML attachment was scrubbed...
URL:
<http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110427/595b387c/attachment.htm>
permail/petsc-users/attachments/20110427/b1c63a14/attachment.htm>
El 27/04/2011, a las 09:17, Alejandro Marcos Arag?n escribi?:
> I understand that, but I'm trying to provide default behavior for the solver
> because the default one (no parameters) works very bad in my case.
> However, I'm stuck because I can't set the same parameters that I obtain with
> com
odes, limit used is 5
>>> linear system matrix = precond matrix:
>>> Matrix Object:
>>> type=seqaij, rows=2020, cols=2020
>>> total: nonzeros=119396, allocated nonzeros=163620
>>> using I-node routines: found 676 nodes, limit used is 5
>>> linear system matrix = precond matrix:
>>> Matrix Object:
>>> type=mpiaij, rows=6058, cols=6058
>>> total: nonzeros=365026, allocated nonzeros=509941
>>> using I-node (on process 0) routines: found 676 nodes, limit used is 5
>>>
>>> [1] System solved in 3664 iterations... 42.683 s
>>>
>>>
>>>
>>> As you can see, the second iteration takes more than 40 seconds to solve.
>>> Could some explain why this is happening and why he number of iterations is
>>> increasing dramatically between solves? Thank you all,
>>>
>>> Alejandro M. Arag?n, Ph.D.
>>
>
>
>
>
> --
> What most experimenters take for granted before they begin their experiments
> is infinitely more interesting than any results to which their experiments
> lead.
> -- Norbert Wiener
-- next part --
An HTML attachment was scrubbed...
URL:
<http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20110427/a143dc5f/attachment-0001.htm>
