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

[nek5000-users at lists.mcs.anl.gov]

Hi Paul, 



I think you were right about genmap not recognizing the BC's.  I checked the REA and there appeared to be another formatting issue with the BC's being located in the wrong space. I fixed it, checked it and it works now. Thanks for looking into this. 



Also, do you have another update on that general method Recycling BC method? 



- Michael 


----- Original Message ----- 
From: nek5000-users at lists.mcs.anl.gov 
To: nek5000-users at lists.mcs.anl.gov 
Sent: Thursday, July 1, 2010 11:11:41 PM GMT -06:00 US/Canada Central 
Subject: Re: [Nek5000-users] genmap error: infinite loop, not connected, in rec_bisect 




Paul, 



Find attached two Rea files for the domain:  One with the periodic condition, and one using walls instead.  This is a conjugate HT case.  The domainW.rea goes through genmap, however domainP.rea get's held up, and then quits with an error message similar to below. Thanks very much for looking into this, it has been frustrating me lately. 



- Michael 


----- Original Message ----- 
From: nek5000-users at lists.mcs.anl.gov 
To: nek5000-users at lists.mcs.anl.gov 
Sent: Thursday, July 1, 2010 10:20:46 PM GMT -06:00 US/Canada Central 
Subject: Re: [Nek5000-users] genmap error: infinite loop, not connected, in rec_bisect 

Send the .rea file (compressed) and I'll try to take a look... 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?  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.  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.  I saw a note in >   the routine that says something like "ensure that all graphs are connected", not sure if this is what it means.  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?  Thanks - Michael M. > > start rec_bisect:        2006 >  done:    0.0% >  done:    1.0% >  done:    2.0% >  done:    3.0% >  infinite loop >  not connected           1          63           1           0 >  not connected           1          32           2           0 >  not connected           1          16           3           0 >  not connected           1           8           4           0 >  not connected           1           4           5           0 >  done:    4.0% >  not connected          13          31           6           0 > Segmentation fault (core dumped) > > 
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