[Condor-users] Dagging deeper in priorities and ranks

[Horvátth Szabolcs <szabolcs@xxxxxxxxxxxxx>]

Hi,

I'm still trying to force DAG ordered job execution (so that a newly 
submitted dag's jobs only start after all available jobs of the first
dag are completed) and without any success. I completely stripped all 
priority and rank expressions and tried to get the basics straight:
I thought that if:
- all jobs are submitted by the same user (so user priority is not an 
issue),
- none of the jobs have priority defined (so they are equally 0 by default),
- and I set NEGOTIATOR_PRE_JOB_RANK or NEGOTIATOR_POST_JOB_RANK to either
(-1 * DAGManJobId) or (5000000 -  DAGManJobId)

I get the dag ordered execution. And of course I do not. ;)

(I used the negotiator rank expression instead of priorities because it 
does not require the modification of all submit
scripts and theoretically it should handle negative numbers. And if 
can't use negative numbers I have to somehow
"limit" the number of jobs to do the substraction and get a positive 
number for sure. Thats the 5000000 - dagmanjobid version.)

So now I have multiple questions:
- What am I doing wrong? The documentation explicitly states that 
DAGManJobId can be used in expressions.
- How can I check the "results" of the negotiation process? Is there any 
way to see how all these expressions (user prio, job prio,
job rank, negotiator rank and the rest) came together?

Thanks in advance.

Cheers,
Szabolcs