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Hi Sho,

Thank you for looking into this. It would be nice to know what the memory use depends on.

Best,
	Maurik
 
On Mar 5, 2014, at 5:48 PM, Sho Uemura <[log in to unmask]> wrote:

> Was not aware this was a problem. Testing some fixes. The jobs that use 4 GB are all done for the moment, and I'm not submitting any more until this is figured out.
> 
> On Wed, 5 Mar 2014, Maurik Holtrop wrote:
> 
>> Dear All,
>> 
>> While here at jlab, I was told in passing that our jobs on the Jlab farm are taking up too much memory. The farm systems have 2 GB per core (I think?) and some of our jobs are asking for 4 GB. That means that one job is actually using up the resources for 2.
>> 
>> I am wondering if this is really a required foot print for our code, or whether there are ways to reduce the memory usage.  For full out data processing of our real data, this could become a critical issue.
>> 
>> What is the memory footprint of our reconstruction code, and what does it depend on?
>> What causes it to be so large, can we reduce it?
>> 
>> For the current MDC, perhaps it would be possible to split the SLIC step, which takes little memory, from the reconstruction step which takes a lot. This would increase the throughput on the farm, since more nodes would be available to us.
>> 
>> Best,
>> 	Maurik
>> 
>> 
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