[Nek5000-users] Access to an undefined portion of a memory object.
nek5000-users at lists.mcs.anl.gov
nek5000-users at lists.mcs.anl.gov
Wed Jul 13 11:10:44 CDT 2016
Hi Marco,
It looks to me like you're trying to overwrite a constant in interp_vt().
I see the following:
call interp_vt(ih_rbc,uvwt,xyz,npts,.false.) ! interpolation
:
:
:
subroutine interp_vt(ihandle,uvwt,xyz,n,iftmp)
:
:
iftmp = .false. ! no temperature
which is trying to overwrite ".false." ... ?
Please let me know if this resolves your issue.
Also, I see in your SIZE file that lelt=10000. Are you running only on one processor?
If the number of elements in your .rea file is ~10,000 and you are running on (say) 1024
MPI ranks, then you only need lelt=10. Resetting lelt and lelv in this way would result
in a significant reduction in memory footprint and possible increase in performance.
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, July 13, 2016 10:20 AM
To: nek5000-users at lists.mcs.anl.gov
Subject: [Nek5000-users] Access to an undefined portion of a memory object.
Hello,
I have a subroutine that interpolates the velocity for a list of points and have a strange error message when I try to run it. It seems that the variables ‘nx1’, ‘ny1’ and nz1’ are not defined even though ‘SIZE’ is included in the subroutine. As far I understand, the variables ‘nx1’, ‘ny1’ and 'nz1’ are made available in a subroutine by simply including ‘SIZE’ at the beginning. I attached the case to reproduce the error message that is:
Access to an undefined portion of a memory object.
Any help would be appreciated.
Marco
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