crontab, nohup, ungrib.exe

Having problems running the WRF Preprocessing System (WPS)?

crontab, nohup, ungrib.exe

Postby zayfin » Tue Jul 23, 2019 10:17 am

i try to run WRF with crontab.
I have encountered many problems so far. I took care of it all.
but I could not solve the ungrib.exe.
i use python script to download GFS data
than i wrote very very simple shell script because python script caused a lot of problem in crontab.
when i use nohup command, everything is ok. but in crontab process, the scripts are not running well.

how can i solve this?

i open crontab with this command>> crontab -e
crontab rows >>>>

50 06 * * * /home/wrf/githubWRF/ >&/home/wrf/githubWRF/crontab.log
10 10 * * * source /home/wrf/.bashrc; /home/wrf/githubWRF/ >&/home/wrf/githubWRF/crontab.wps.log
this is the error i got
1617 Segmentation fault ./ungrib.exe
i think that PFILE process is ok but FILE process causes the problem
this is shell script. it is very very simple

echo "WPS start"
cd /home/wrf/githubWRF/WPS/
echo "ungrib start"
echo "ungrib finish"
echo "metgrid finish"
cd /home/wrf/githubWRF/WRF4_1/test/em_real/
ln -sf /home/wrf/githubWRF/WPS/met_em* .
echo "real exe start"
nohup mpirun -np 4 ./real.exe
echo "wrf start"
nohup mpirun -np 18 ./wrf.exe
echo "wrf finish"
Posts: 13
Joined: Wed Nov 03, 2010 10:48 am

Re: crontab, nohup, ungrib.exe

Postby r25 » Tue Aug 13, 2019 11:30 am


Did find a solution ? I am have the same problem.

Posts: 2
Joined: Mon Apr 15, 2013 6:53 am

Re: crontab, nohup, ungrib.exe

Postby r25 » Fri Aug 23, 2019 4:55 am


I have the same problem. I built a script shell programme and it runs normally if executed manually from terminal, however if executed by the crontab it returns a segmentation fault error in ungrib (in the second swap of the ungrib, when the it should start to save the FILES) !! I ran with ungrib with root and everythinf is ok, :roll: :?

Did you find a solution for this problem?

Thanks in advance.
Posts: 2
Joined: Mon Apr 15, 2013 6:53 am

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