Re: [gt-user] How to set cores-per-node in WS job submission?

[Jan Ploski]

Steve White wrote:
Hi,
One of our users needs more RAM on each node for his job processes;
using conventional batch systems he could adjust this, such as with
the 'ppn' option in a PBS batch file.

How do we achieve this effect with globusrun-ws? 

Here 
http://www.globus.org/toolkit/docs/4.0/execution/wsgram/schemas/gram_job_description.html#element_hostCount
I see a "hostCount", but it says this applies only to SMP machines...

Steve,

Here is a piece of RSL that can be used to submit a "25:ppn=4" job:

<count>100</count>
<extensions>
    <resourceAllocationGroup>
        <hostCount>25</hostCount>
        <cpusPerHost>4</cpusPerHost>
    </resourceAllocationGroup>
</extensions>

For this to work, the site either has to run Globus >= 4.0.5 or has to 
install a patch:

http://www.globus.org/toolkit/docs/4.0/execution/wsgram/WS_GRAM_Job_Desc_Extensions.html

D-Grid sites in Hannover/Ju"lich/Oldenburg have installed this extension, 
not sure about others.

Regards,
Jan Ploski