[glue-wg] TmpDir, ScratchDir and DataDir

[JP Navarro]

Sergio,

I disagree. A remote user wanting to submit and run a job has to know
something about the execution environment in order to even be able to
use TmpDir, ScratchDir, and DataDir.  First, even if they send a probe
job to discover those paths, what will the job look at to discover these
directories?  Some environment variable that points to these  
directories,
or something else? What environment variable does it look it? Are we
implying some other environment variable standard so that it can  
discover
these paths?

BTW, we have talked about standard execution environment variables,  
which
I think is a good thing, but I believe GLUE should be flexible enough to
allow remove users to discover these paths even when standard variables
aren't there. I don't see a reason to tie GLUE to standard environments.

The TeraGrid users standard environment variables, AND we're going to
publish the paths those variables point to thru information services so
that users can construct jobs that use these paths (without launching
probe jobs).

Regards,

JP


On May 8, 2008, at 9:17 AM, Sergio Andreozzi wrote:

> Hi JP and Gerson,
>
> during this call
> http://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/PhoneMeeting20080429_11
>
> we agreed that the attributes TmpDir, ScratchDir and DataDir part of  
> the Computing Resource (e.g., a batch system) should be removed:
>
> http://forge.ogf.org/sf/sfmain/do/go/artf6196
>
> the values can be discovered by the job in the worker node  
> environment.
>
> Do you confirm that this is ok with you?
>
> Cheers, Sergio
>
> -- 
> Sergio Andreozzi
> INFN-CNAF,                    Tel: +39 051 609 2860
> Viale Berti Pichat, 6/2       Fax: +39 051 609 2746
> 40126 Bologna (Italy)         Web: http://www.cnaf.infn.it/~andreozzi