Exactly.
In run_lapw we define an alias (tcsh syntax, in bash it is slightly
different) like:
alias testerror 'if (! -z \!:1.error) goto error'
and with
x lapw1
testerror lapw1
you can catch a problem.
Instead of "goto error" you could also do something else.
PS: Most of our shell scripts exit with an error code when a real error
came up. This can be catched with echo $status
Am 08.09.2020 um 20:38 schrieb Yundi Quan:
The simplest way that I can think of is to check whether the lawp1.error
file is empty or not after executing x lapw1. If it is empty after
executing 'x lapw1', then lapw1 terminates without any errors. If it is
not, then lapw1 terminates with error(s).
On Tue, Sep 8, 2020 at 2:23 PM Rubel, Oleg <rub...@mcmaster.ca
<mailto:rub...@mcmaster.ca>> wrote:
Dear WIEN2k community,
suppose we have a code that includes a sequence of commands. Before
running the next command, I would like to check if the previous one
completed successfully. It is convenient to use exit codes for that
purpose. Here is a small example in bash (looking for a file that
does not exist):
[rubel@gra-login3 lambda1]$ ls oleg
ls: cannot access 'oleg': No such file or directory
[rubel@gra-login3 lambda1]$ echo $?
2
Here "echo $?" returns the exit code of a previous command. If it is
not "0", there is a problem (like in this case, there is no "oleg"
file).
Now I try to apply the same strategy to WIEN2k:
[rubel@gra-login3 lambda1]$ x lapw1
LAPW1 - Error
0.001u 0.018s 0:00.06 16.6% 0+0k 23592+16io 67pf+0w
[rubel@gra-login3 lambda1]$ echo $?
0
This is an unexpected result. The exist status is OK in spite of the
fact that LAPW1 exited with an error. Of course, there are error
files created for each program + spin up/dn (even process for
parallel calculations). But it can be quite elaborate to search
through them, and it depends on whether you run lapw1 or lapw2, etc.
I wonder if there is a _simple_ alternative way for sensing an
error? Also message is not always "XXXXX - Error". It can be
different (e.g., segmentation fault).
Thank you in advance
Oleg
--
Oleg Rubel (PhD, PEng)
Department of Materials Science and Engineering
McMaster University
JHE 359, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
Email: rub...@mcmaster.ca <mailto:rub...@mcmaster.ca>
Tel: +1-905-525-9140, ext. 24094
Web: http://olegrubel.mcmaster
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