Ways(maybe qalter?) to remove a resource/attributes entry from a job?

Users/Site Administrators
1

Hi,
one can easily to modify the job (or add new) entries through qalter without any problem.

e.g

$ qalter -l select=1:ncpus=10 <jobid>
$ qalter -W stagein=.@submithost:/tmp/a.out <jobid>

Just curious, could we remove some defined attributes (e.g remove stagein entry) from a job via qalter?
btw, leaving the rvalue blank is not the correct way as it yields to the following error.

$ qalter -W stagein= <jobid>
qalter: illegal -W value
usage: qalter [-a date_time] [-A account_string] [-c interval] [-e path]
	[-h hold_list] [-j y|n] [-k keep] [-l resource_list]
	[-m mail_options] [-M user_list] [-N jobname] [-o path] [-p priority]
	[-R o|e|oe] [-r y|n] [-S path] [-u user_list] [-W dependency_list]
	[-P project_name] job_identifier..
2

qalter has some limitation and also not all attributes of PBS can be changed, some are readonly

3

I apologise for not making the post clear enough. sorry, I didnt get you. did i mentioned i cant change the attributes? i only want to unset the resource entry that is changeable.

4

Unsetting os stagein is unsupported by qalter. You can update its values assigned to the attribute

[pbsdata@pbsserver ~]$ qsub -l select=1:ncpus=5 -- /bin/sleep 100
6606.pbsserver

[pbsdata@pbsserver ~]$ qstat -f 6606 | grep -i stagein
[pbsdata@pbsserver ~]$ qalter -W stagein=exec.py@pbsserver:/home/pbsdata/exe.py  6606
[pbsdata@pbsserver ~]$ qstat -f 6606 | grep -i stagein
    stagein = exec.py@pbsserver:/home/pbsdata/exe.py
	
[pbsdata@pbsserver ~]$ qalter -W stagein=test.py@pbsserver:/home/pbsdata/test.py  6606
[pbsdata@pbsserver ~]$ qstat -f 6606 | grep -i stagein
    stagein = test.py@pbsserver:/home/pbsdata/test.py
	
[pbsdata@pbsserver ~]$ qalter -W stagein=""  6606
qalter: illegal -W value
usage: qalter [-a date_time] [-A account_string] [-c interval] [-e path]
	[-h hold_list] [-j y|n] [-k keep] [-l resource_list]
	[-m mail_options] [-M user_list] [-N jobname] [-o path] [-p priority]
	[-R o|e|oe] [-r y|n] [-S path] [-u user_list] [-W dependency_list]
	[-P project_name] job_identifier...
       qalter --version