Re: [HTCondor-users] Prefetch all-to-one inter-dependencies in DAGMan

["R. Kent Wenger" <wenger@xxxxxxxxxxx>]

On Mon, 17 Dec 2012, Walid Saad wrote:

> Hi all,
> I want to submit to condor scheduler the following DAG (attached).
>
> JOB  A  A.condor
> JOB  B  B.condor
> JOB  C  C.condor
> JOB  D  D.condor
>
> PARENT A B C CHILD D
>
> The output file of jobs A, B, C are the input file for the  job D.
> According to the job DAGMan the job D will be submitted  if all jobs A, B
> and  C are completed.
> My question is as follows:
> Is there a way in Condor to submit the job D as soon as one of jobs A, B or
> C is finished?

Right now DAGMan doesn't support a way to do this.  (There's a ticket 
requesting this kind of feature; for some reason, I can't access the 
gittrac tickets right now, so I can't give you a link.)

The only way I can think of to implement this would be a lot of work: 
you'd have to have POST scripts for jobs A, B, and C that would condor_rm 
the other jobs in that "set", and also mark the node as successful if the 
job was removed.

Kent Wenger
CHTC Team