[Beowulf] PBS and Globus gatekeeper node

Gerson Galang gerson.sapac at gawab.com
Sun Jan 30 17:46:45 EST 2005


We have a few clusters on our site and they all run PBS/Torque. What we 
want is to setup a gatekeeper node so that we will just have to install 
Globus on the gatekeeper node and not on all the head nodes of each 
cluster. I tried implementing this before and have not been successful 
because PBS's or Torque's routing queue functionality does not work as 
documented.

I don't have any problems with (Torque's) routing of jobs from one queue 
to another BUT this is only if the other queue is also local to machine 
I submitted the job to.

create queue router
set queue router queue_type = Route
set queue router route_destinations = batch at localhost
set queue router enabled = True
set queue router started = True

create queue batch
set queue batch queue_type = Execution
set queue batch resources_default.nodect = 1
set queue batch resources_default.nodes = 1
set queue batch enabled = True
set queue batch started = True

Assuming I have "router" as a routing queue and "batch" as an execution 
queue. If I submit a job to router, batch will still end up executing 
the job.

But if I set "router at localhost" to route jobs to queues on another 
machine "batch at anothermachine.mydomain.com", PBS won't run the jobs 
anymore. PBS will tell me "Jobs rejected by all possible destinations" 
even without me seeing it tried contacting anothermachine.mydomain.com.

# a queue setup on my local machine
create queue router
set queue router queue_type = Route
set queue router route_destinations = batch at anothermachine.mydomain.com
set queue router enabled = True
set queue router started = True


# a queue setup on anothermachine.mydomain.com
create queue batch
set queue batch queue_type = Execution
set queue batch resources_default.nodect = 1
set queue batch resources_default.nodes = 1
set queue batch enabled = True
set queue batch started = True

Has anybody in this list already got this functionality *(of routing 
jobs from a queue in your local machine to a queue in a remote machine)* 
working before?

Thanks,
Gerson
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