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)

----- Original Message -----
From: nek5000-users@lists.mcs.anl.gov
To: "Nekton User List" <nek5000-users@lists.mcs.anl.gov>
Sent: Tuesday, June 29, 2010 11:53:10 AM GMT -06:00 Guadalajara / Mexico City / Monterrey
Subject: Re: [Nek5000-users] Periodic Mismatch 1

Hi,

I am getting a 'Periodic Mismatch 1' error:

abort: PERIODIC MISMATCH 1:

        1 3 P    ie
        1 6 E    je
        6 1 E    ke

I grep'd to the error in genmap.f and from what I can tell this bit of code is checking to ensure that the elements and faces I have said are periodic, match up with the other corresponding elements and faces. From the error, it seems to think that face 3 of element 1 is Periodic, and then returns this error because of course it is not.

I have attached the rea. I am not sure what the issue is here, and why it is not recognizing face 1 as periodic (as you will see in the rea, Elem 1 face 1 is periodic with elem 6 face 3). This error occurs at the first element. The values in the error message all seem to come from the periodic condition I have specified, but it is almost as if they are not in the correct order in the rea.

From my understanding: " P       1      1.00       6.00000       3.00000       0.00000       0.00000       0.00000 " states that element 1 face 1 is periodic with element 6 face 3.

Thanks for any help with this,
Michael M.

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