Re: [condor-users] diff copy_to_spool transfer_executable

[Mark Silberstein <marks@xxxxxxxxxxxxxxxxxxxxxxx>]

copy_to_spool : condor maintains spool directory on the computer where
you submit your job from, just like printer spool. So when a job is
submitted, all its files are copied there. I guess that it is done to
ensure that the files to be invoked are not changed. But if you are sure
that the files for the submitted job will always be available for Condor
after job submission, you can set copy_to_spool to false, to avoid this
copy.
When job is submitted, the files necessary for it to be invoked may not
be available on remote resource. So Condor can copy the executable,
which it does by default. However if you know that the executable is
already there ( say, you have Matlab installed on all your computers, so
Condor shouldn't copy it), you can tell Condor not to do it.

On Tue, 2004-01-27 at 18:35, Olivier Ricou wrote:
> Hi, 
> 
>  Can someone explain me the difference between the copy_to_spool command
> in the submision file and the transfer_executable command please ?
> 
> copy_to_spool = <True | False>
>     If copy_to_spool is set to True, then condor_ submit will copy the
>     executable to the local spool directory before running it on a
>     remote host. Oftentimes this can be quite time consuming and
>     unnecessary. By setting it to False, condor_ submit will skip this
>     step. Defaults to True.
> 
> 
> transfer_executable = <True | False>
>     For jobs submitted to the globus universe, as well as vanilla and
>     MPI. If transfer_executable is set to False, then Condor looks for
>     the executable on the remote machine, and does not transfer the
>     executable over. This is useful if you have already pre-staged your
>     executable and wish to have Condor behave more like rsh. Defaults to
>     True.
> 
>                                            TIA,
> 
>                                                 Olivier.
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