[Nek5000-users] Problem using genmap with large numbers of elements

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

Dear Ricardo,

I believe there is a fix to this... I'm not 100% certain of the status in the repo.

Perhaps one of the other developers is aware... 

Will try to find out more.

Best, Paul

________________________________________
From: nek5000-users-bounces at lists.mcs.anl.gov [nek5000-users-bounces at lists.mcs.anl.gov] on behalf of nek5000-users at lists.mcs.anl.gov [nek5000-users at lists.mcs.anl.gov]
Sent: Wednesday, December 21, 2016 3:21 PM
To: nek5000-users at lists.mcs.anl.gov
Subject: [Nek5000-users] Problem using genmap with large numbers of elements

Dear Nek Users,
We are about to set up a new case with about 29692 in 2D, which we
would like to extrude to about 150 elements in 3D, giving a total of
about 30k times 150 = 4.5M elements. n2to3 works fine, but genmap
gives a "periodic mismatch error". Having a lower number of extrusion
elements, say 30k times 70 = 2.1M elements, works fine. Changing the
tolerance in genmap does not fix it.

Before diving into the code of n2to3 and genmap, we wanted to ask
whether somebody has experienced that before, and whether you'd know a
potential fix for the problem.

We used both an older version of genmap and the latest github version.

Thanks a lot!
Ricardo

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