[petsc-users] KSPSolve takes more in each iteration

[Matthew Knepley]

It sounds like you are allocating memory each time. You can check using
-malloc_dump
after a few iterates.

   Matt

On Mon, Jul 20, 2015 at 7:35 PM, Orxan Shibliyev <orxan.shibli at gmail.com>
wrote:

> I am solving a non-linear problem. Basically I do the following:
>
> ... Allocate A, x, b, ksp ...
>
> for_loop
>     ... call myFunction ...
>
> where,
>
> myFunction:
>     ...
>     startTime
>     KSPSolve
>     stopTime
>     ....
>
> I record time for KSPSolve. It takes more each time until it becomes
> impossible to wait. I put the code on a cluster with (14 x 1) processors.
> Any idea?
>



-- 
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
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