<div dir="ltr">Hi Barak,<div><br></div><div>it is because of the fact that the generated file format is probably not readable in visit. In the <b>usrchk</b> subroutine in your .usr file write these 2 lines</div><div>param(66) = 4</div>
<div>param(67) = 4</div><div><br></div><div>before the end of the routine</div><div><br></div><div>Then compile and execute your program. Now you will get output files in the form of turbJet.fld001, turbJet.fld002, ...and so on.</div>
<div>type in visnek turbJet in your terminal, and generate <b>turbJet.nek5000</b>. This .nek5000 file can be read by visit.</div><div><br></div><div>Thanks,</div><div>Tanmoy</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Sat, Dec 7, 2013 at 10:33 AM, <span dir="ltr"><<a href="mailto:nek5000-users@lists.mcs.anl.gov" target="_blank">nek5000-users@lists.mcs.anl.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Tanmoy,<br>
Many thanks. It seems that after dividing by 4 (dt=0.005) it runs and I get output files in the form jet0.fxxxxx .<br>
Now I am trying to visualize them using the precompiled ubuntu11 version of visit. Unfortunately, I get the following error:<br>
<br>
VisIt could not read from the file "/home/galanti/COMPUTATION/<u></u>NEK5000/nek5_svn/TEST-<u></u>examples/turbJet/jet0.f* database".<br>
<br>
The generated error message was:<br>
<br>
There was an error opening /home/galanti/COMPUTATION/<u></u>NEK5000/nek5_svn/TEST-<u></u>examples/turbJet/jet0.f* database. It may be an invalid file. VisIt tried using the following file format readers to open the file: Nek5000<br>
<br>
The following error(s) may be helpful in identifying the problem:<br>
When attempting to use "Nek", the file matched the general format expected by the reader but eventually encountered this error: "A tag called filetemplate: must be specified".<br>
<br>
What's wrong?<br>
Many thanks again,<br>
Barak<div class="im"><br>
<br>
<br>
On 12/07/2013 12:42 AM, <a href="mailto:nek5000-users@lists.mcs.anl.gov" target="_blank">nek5000-users@lists.mcs.anl.<u></u>gov</a> wrote:<br>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">
Hi Barak,<br>
<br>
It is a problem with numerical Stability. Decrease DT in your .rea file<br>
until the simulations become stable. You could start with 1/2 DT to<br>
check if simulation is stable, other wise go for 1/4 DT, and check with<br>
this simple test.<br>
<br>
Thanks,<br>
Tanmoy<br>
<br>
<br>
On Fri, Dec 6, 2013 at 3:31 PM, <<a href="mailto:nek5000-users@lists.mcs.anl.gov" target="_blank">nek5000-users@lists.mcs.anl.<u></u>gov</a><br></div><div><div class="h5">
<mailto:<a href="mailto:nek5000-users@lists.mcs.anl.gov" target="_blank">nek5000-users@lists.<u></u>mcs.anl.gov</a>>> wrote:<br>
<br>
Hello,<br>
I am testing the example turbJet, and it seems that I have some<br>
problem with output. This are the output files:<br>
jet0.f00001<br>
<br>
Moreover, the ran stops with emergency exit at time 5.64 (CFL too<br>
large?):<br>
<br>
<br>
282 DNORM, DIVEX 6.2789891850172769E-004<br>
8.4967723454134898E-006<br>
282 5.6400E+00 1.1065E+01 Fluid done<br>
282 5.6400000E+00 1.1955953E-03 6.4269380E-04 9.9999991E-01 e2<br>
t max/min: 0.0000000000000000 0.0000000000000000<br>
CFL, Ctarg! 22.504301079496056 2.0000000000000000<br>
call outfld: ifpsco: T<br>
<br>
283 5.6400E+00 Write checkpoint:<br>
0 283 OPEN: jet0.f00001<br>
<br>
283 5.6400E+00 done :: Write checkpoint<br>
file size = 55. MB<br>
avg data-throughput = 572.1MB/s<br>
io-nodes = 1<br>
<br>
<br>
7 Emergency exit: 283 time =<br>
5.6399999999999677<br>
Latest solution and data are dumped for post-processing.<br>
*** STOP ***<br>
3 Emergency exit: 283 time =<br>
5.6399999999999677<br>
Latest solution and data are dumped for post-processing.<br>
*** STOP ***<br>
5 Emergency exit: 283 time =<br>
5.6399999999999677<br>
Latest solution and data are dumped for post-processing.<br>
*** STOP ***<br>
0 Emergency exit: 283 time =<br>
5.6399999999999677<br>
Latest solution and data are dumped for post-processing.<br>
*** STOP ***<br>
6 Emergency exit: 283 time =<br>
5.6399999999999677<br>
Latest solution and data are dumped for post-processing.<br>
*** STOP ***<br>
4 Emergency exit: 283 time =<br>
5.6399999999999677<br>
Latest solution and data are dumped for post-processing.<br>
*** STOP ***<br>
2 Emergency exit: 283 time =<br>
5.6399999999999677<br>
Latest solution and data are dumped for post-processing.<br>
*** STOP ***<br>
1 Emergency exit: 283 time =<br>
5.6399999999999677<br>
<br>
<br>
<br>
<br>
Thank you,<br>
Barak<br>
<br>
<br></div></div>
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