[Halld-offline] Gluex event sizes in pythia MC

[Richard Jones]

Curtis,

I have added a histogram of the means to the bottom of the same web page.

http://zeus.phys.uconn.edu/halld/hdgeant/sizes-10-2010/

As to how much space is saved when hits are stored as ADC/TDC values, I doubt that there is more than a 20% space effect coming from that.  Most of this factor 3.5 increase over Alex's estimate probably comes from the failure to apply realistic thresholds when saving hits in the chambers, particularly the FDC.

-Richard J.


On 10/26/2010 10:45 PM, Curtis A. Meyer wrote:
> Thanks Richard --
>
>     These look really nice, I believe that they will be quite useful! While I can pull it
> out of your plots, I was wondering if you also had a plot that showed the "mean"
> for each of the detector systems on a single plot. It looks to me that after the FDC,
> the CDC may be the culprit, but I am not 100% sure.
>
>
>    curtis
> On 10/26/10 10:00 PM, Richard Jones wrote:
> Hello,
>
> As I pointed out during our Monday physics meeting, event sizes for pythia minimum-bias samples are right now around 50kb.  I have made the event record distributions, grouped by detector and type of information stored, and posted them on the web page below.  The FDC is the largest contributor, at around 75% of the total payload.
>
> http://zeus.phys.uconn.edu/halld/hdgeant/sizes-10-2010
>
> -Richard Jones
>
>
>
>
>
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> --
> Prof. Curtis A. Meyer           Department of Physics
> Phone:  (412) 268-2745          Carnegie Mellon University
> Fax:    (412) 681-0648          Pittsburgh PA 15213-3890
> cmeyer at ernest.phys.cmu.edu<mailto:cmeyer at ernest.phys.cmu.edu>    http://www.curtismeyer.com/
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>
>


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