[Nek5000-users] genmap error: infinite loop, not connected, in rec_bisect

Thu Jul 1 22:17:20 CDT 2010

First question is whether genmap sees the bcs the  way
you expect it to do so ?

Paul

On Thu, 1 Jul 2010, nek5000-users at lists.mcs.anl.gov wrote:

>
>
> Hi Paul,
>
>
>
> Could you provide some insight into this problem with the periodic bondary condition as described below?Â  This error occurs when running genmap.
>
>
>
> Thanks,
>
> Michael
>
>
> ----- Original Message -----
> From: nek5000-users at lists.mcs.anl.gov
> To: nek5000-users at lists.mcs.anl.gov
> Sent: Tuesday, June 29, 2010 1:59:13 PM GMT -06:00 US/Canada Central
> Subject: Re: [Nek5000-users] Periodic Mismatch 1
>
>
> Hi,
>
> I was able to solve this by removing the element face count column.
>
> I now run into the following issue shown below.Â  I was able to find the subroutine spec_bis_conn where this error occurs.
> I believe this has to do with the periodic faces I have set up. My question is whether the periodic faces need to be continuous:
>
> For example, the geometry is similar to fluid flow over a flat plate on both sides. The fluid is periodic, but separated by the solid
> thickness (this is a Conj HT problem). Essentially there is a "gap" in the periodic fluid portion if you can imagine.Â  I saw a note in
> Â  the routine that says something like "ensure that all graphs are connected", not sure if this is what it means.Â  I tried making the fluid
> periodic on only one side of the plate and it worked, however when I make the other side (bottom of the plate) periodic with itself
> I get the following error. Any thoughts?Â  Thanks - Michael M.
>
> start rec_bisect:Â Â Â Â Â Â Â  2006
> Â done:Â Â Â  0.0%
> Â done:Â Â Â  1.0%
> Â done:Â Â Â  2.0%
> Â done:Â Â Â  3.0%
> Â infinite loop
> Â not connectedÂ Â Â Â Â Â Â Â Â Â  1Â Â Â Â Â Â Â Â Â  63Â Â Â Â Â Â Â Â Â Â  1Â Â Â Â Â Â Â Â Â Â  0
> Â not connectedÂ Â Â Â Â Â Â Â Â Â  1Â Â Â Â Â Â Â Â Â  32Â Â Â Â Â Â Â Â Â Â  2Â Â Â Â Â Â Â Â Â Â  0
> Â not connectedÂ Â Â Â Â Â Â Â Â Â  1Â Â Â Â Â Â Â Â Â  16Â Â Â Â Â Â Â Â Â Â  3Â Â Â Â Â Â Â Â Â Â  0
> Â not connectedÂ Â Â Â Â Â Â Â Â Â  1Â Â Â Â Â Â Â Â Â Â  8Â Â Â Â Â Â Â Â Â Â  4Â Â Â Â Â Â Â Â Â Â  0
> Â not connectedÂ Â Â Â Â Â Â Â Â Â  1Â Â Â Â Â Â Â Â Â Â  4Â Â Â Â Â Â Â Â Â Â  5Â Â Â Â Â Â Â Â Â Â  0
> Â done:Â Â Â  4.0%
> Â not connectedÂ Â Â Â Â Â Â Â Â  13Â Â Â Â Â Â Â Â Â  31Â Â Â Â Â Â Â Â Â Â  6Â Â Â Â Â Â Â Â Â Â  0
> Segmentation fault (core dumped)
>
>