Volkmar Glauche wrote:
> On Mon, 3 Jan 2005, Carolyn L. Fort wrote:
>
>> I'm purchasing a Linux workstation that will be devoted to fMRI
>> processing/analysis and we'll primarily be running SPM (though AFNI,
>> FSL and other packages will be loaded as well). I'm wondering whether
>> SPM performs better on a dual processor or if sufficient speed (between
>> 2.8 - 3.2 GB) on a single processor will suffice.
>
>
> Matlab (and therefore SPM) will not make explicit use of a 2nd processor,
> but it is recommended if you want to use the workstation interactively
> while an analysis is running.
Having a High speed processor waiting for interactive command is a bit
of a waste. I would prefer to take the penalty of sluggish workstation
response by running two analysis process on dual processor.
Alternative is to get a single processor and hyperthread it. But
analysis speed can be slower, assuming that Data access (Ethernet/Hard
Disk/Cache) is not a limitting factor. May be dual processors,
hyperthread to 4 processors is a better proposition (3 analysis + 1
workstation activity). Unfortunately you cannot hyperthread only one
processor in a dual processors config.
Cinly
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