[HTCondor-users] A couple DAGman questions

[Michael Fienen <mike@xxxxxxxxxxx>]

Hello HTCondor Peoples

I have a three questions Iâve had trouble answering regarding DAGman.

1) It seems in the past it has been impossible to set a macro for use by all jobs in a DAG. Has this changed? Looks like in 2011 it was not possible (https://lists.cs.wisc.edu/archive/htcondor-users/2011-April/msg00130.shtml)

For example, I would like to do something like this:

ubername=âfooâ

JOB A foo.sub

VARS A=$(ubername)

JOB B bar.sub

VARS B=$(ubername)

 â.

2) What is the bet way to return a value from one job and use it as input for another?

Like this?

JOB A foo.sub

SCRIPT POST A bar.sh $RETURN

JOB B bar.sub

VARS B=$(RETURN)

In other words, I want to run foo.sub, then get some information from bar.sh based on the results of foo.sub, and pass that information on to bar.sub.

3) Is there a better way to provide a list of variables to a JOB in a DAG?

Iâm doing it like this:

JOB A foo.sub

VARS A junkus=âhelloâ

VARS A punkus=âworldâ

â

That seems to work, but wondering if there is another better syntax like a dictionary in Python style or such.

Thanks!

Mike Fienen

USGS Wisconsin Water Science Center