Re: [Condor-users] Help with ClassAd syntax: offset $(process) [SEC=UNCLASSIFIED]

[Kevin.Buckley@xxxxxxxxxxxxx]

Peter,

> I have tried $$([Process + 1]) and it doesn't replace anything. I even
> tried $$([TARGET.Memory * 0.9]) as in the example and it doesn't replace
> anything. Maybe it only works with Arguments and not TransferInputFiles.

Because it's interesting I played with it. (tm)

I mostly saw the same as you reported, messages about being unable
to parse the expressions I was trying to use. I also tried the
$$(MY.ProcId +1]) suggested by someone else - no joy.


A "wild guess" has, however, allowed me to achieve what you want,
I think - deep joy!

Instead of trying to programatically branch on the $(Process) macro,
you can simply explicity list the offset file(s) you want, eg

=========================
usual guff
...

TransferInputFiles=1.txt
arguments=something
queue


TransferInputFiles=2.txt
arguments=something else
queue
=========================

Note that there are two requests to queue single tasks but after the
first, you overide default, or previously overidden, variables.


The above will thus queue TWO $(Process)es in the SAME $(Cluster),
the first one is
 Process/ProcId = 0
the second
 Process/ProcId = 1

however the files that get transfered to each $(Process) are what
you tell the Condor to transfer.

My remote "program" just did a simple environment echo and directory
listing and I saw (most lines binned for clarity) the following

CONDOR_CLUSTER=102690
CONDOR_PROCESS=0

04/02/2011  04:06 p.m.                 6 1.txt
04/02/2011  04:06 p.m.                70 condor_exec.bat


and

CONDOR_CLUSTER=102690
CONDOR_PROCESS=1

04/02/2011  04:06 p.m.                 7 2.txt
04/02/2011  04:06 p.m.                70 condor_exec.bat


Rather simple, really.

Ok, for a whopping great number of jobs it is going to be a
lot of typing but I guess you can come up with something that
will automatically produce what you need to tag onto the
"usual guff" to achieve the desired effect.

If you do get the $(Process) macro subst working, do let me know.
Kevin

-- 
Kevin M. Buckley                                  Room:  CO327
School of Engineering and                         Phone: +64 4 463 5971
 Computer Science
Victoria University of Wellington
New Zealand