Jan, Thanks, this looks like it will work for us.
However, it isn't completely satisfactory, in a sense. One of the big selling points (or requirements) of job submission over the grid is that it makes it very easy to change from one machine to another. The cpusPerHost is very machine-specific information though. The more machine-specific stuff that goes into the job submission file, the harder it is to use the file with a different machine. What such users really want is an *application-specific* requirement, such as minMemory seems to be. So, what's the story with minMemory? Does it simply not work? Have I misunderstood its function? Thanks! On 25.04.08, Jan Ploski wrote: > 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 > -- - - - - - - - - - - - - - - - - - - - - - - - - - Steve White +49(331)7499-202 e-Science / AstroGrid-D Zi. 35 Bg. 20 - - - - - - - - - - - - - - - - - - - - - - - - - Astrophysikalisches Institut Potsdam (AIP) An der Sternwarte 16, D-14482 Potsdam Vorstand: Prof. Dr. Matthias Steinmetz, Peter A. Stolz Stiftung privaten Rechts, Stiftungsverzeichnis Brandenburg: III/7-71-026 - - - - - - - - - - - - - - - - - - - - - - - - -
