Hi,
If I may ask, what are the specs on these machines? I would guess that
they are dual Xeons or Opterons, given eight cores. Do you have a
preference of motherboard and RAM manufacturer? I am considering a Core
i7 on a Supermicro board with Crucial RAM. The memory access performance
appears to shine vs. the Xeon boards I was considering, which use
FB-DIMMs at a ~20-30% performance hit.
Regards,
Chuck
Steve Smith wrote:
> Hi,
>
> Our most recent purchases at FMRIB were 8-core Linux nodes with 4GB
> per core, and this works very well. 4GB is more than enough on
> average, and it's great for the odd process that needs a lot more RAM
> to be able to access a lot more. If you can afford 6GB then even
> better.
>
> Cheers, Steve.
>
>
>
>
>
> On 18 Feb 2009, at 21:00, Chuck Theobald wrote:
>
>> Hi,
>>
>> I am assembling a specification for a compute node for FSL
>> processing. Our researchers will be doing averages of perhaps 12-20
>> subjects. DTI analysis is also desired. How much memory should we be
>> purchasing per core? Our current processing indicates that 2 GB is
>> not adequate, but that 4 GB probably is. Given the nature of such
>> work, I am thinking that 6 GB per core should see us into the
>> mid-term future. Is this overkill or reasonable?
>>
>> Thanks,
>>
>> --
>> Chuck Theobald
>> System Administrator
>> The Robert and Beverly Lewis Center for Neuroimaging
>> University of Oregon
>> P: 541-346-0343
>> F: 541-346-0345
>>
>
>
> ---------------------------------------------------------------------------
>
> Stephen M. Smith, Professor of Biomedical Engineering
> Associate Director, Oxford University FMRIB Centre
>
> FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
> +44 (0) 1865 222726 (fax 222717)
> [log in to unmask] http://www.fmrib.ox.ac.uk/~steve
> ---------------------------------------------------------------------------
>
>
--
Chuck Theobald
System Administrator
The Robert and Beverly Lewis Center for Neuroimaging
University of Oregon
P: 541-346-0343
F: 541-346-0345
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