<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Times New Roman; font-size: 12pt; color: #000000'><P>Hi Paul,</P>
<P> </P>
<P>Could you provide some insight into this problem with the periodic bondary condition as described below? This error occurs when running genmap.</P>
<P> </P>
<P>Thanks,</P>
<P>Michael</P>
<P><BR>----- Original Message -----<BR>From: nek5000-users@lists.mcs.anl.gov<BR>To: nek5000-users@lists.mcs.anl.gov<BR>Sent: Tuesday, June 29, 2010 1:59:13 PM GMT -06:00 US/Canada Central<BR>Subject: Re: [Nek5000-users] Periodic Mismatch 1<BR><BR></P>
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<DIV style="FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 12pt">Hi,<BR><BR>I was able to solve this by removing the element face count column.</DIV>
<DIV style="FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 12pt"> </DIV>
<DIV style="FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 12pt">I now run into the following issue shown below. I was able to find the subroutine spec_bis_conn where this error occurs. </DIV>
<DIV style="FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 12pt">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: <BR><BR>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 </DIV>
<DIV style="FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 12pt">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</DIV>
<DIV style="FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 12pt"> 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 </DIV>
<DIV style="FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 12pt">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 </DIV>
<DIV style="FONT-FAMILY: Times New Roman; COLOR: #000000; FONT-SIZE: 12pt">I get the following error. Any thoughts? Thanks - Michael M.<BR><BR>start rec_bisect: 2006<BR> done: 0.0%<BR> done: 1.0%<BR> done: 2.0%<BR> done: 3.0%<BR> infinite loop<BR> not connected 1 63 1 0<BR> not connected 1 32 2 0<BR> not connected 1 16 3 0<BR> not connected 1 8 4 0<BR> not connected 1 4 5 0<BR> done: 4.0%<BR> not connected 13 31 6 0<BR>Segmentation fault (core dumped)<BR><BR></DIV></div></body></html>