[Frost] CHI-SQ table has huge number in the super-layer1 and super-layer2

Sungkyun Park sp06k at fsu.edu
Tue Feb 22 17:54:52 EST 2011


I had the message from JLab
   "Message body is too big: 427889 bytes with a limit of 400 KB"

I put two jpg files in the following web:
   http://hadron.physics.fsu.edu/~skpark/DC_Cal_g9b/DC_Cal_feb2211.html

If you receive several emails with same name, I am sorry to give you some inconveniences.

Sung
Florida State University


----- Original Message -----
From: Sungkyun Park<sp06k at fsu.edu>
Date: Tuesday, February 22, 2011 5:31 pm
Subject: CHI-SQ table has huge number in the super-layer1 and super-layer2
To: Eugene Pasyuk <pasyuk at jlab.org>
Cc: FROST <frost at jlab.org>,Dennice Roberts <dmr10c at fsu.edu>

> Hi Eugene,
> 
> I had some problems when I used trk_mon_lite. So I have added the 
> option to set a limit on the events in trk_mon_lite.
> In the most of runs, the error was not happened when events are 60000.
> After using runs with N6000, I have one problem, which is that CHI-
> Sq values in super-layer 1 and super-layer 2 had very big.
> They had sometimes more than 20.
> 
> The following is one example. run number is run 63407.A05.B00
> 
>        CHI-SQ Summary
>          sec1    sec2    sec3    sec4    sec5    sec6
> sl1 :     24.59    0.35    10.34    0.10    11.30    0.90
> sl2 :     9.54    0.20    0.12    0.16    0.09    0.15
> sl3 :     0.25    0.13    0.13    0.16    0.18    0.12
> sl4 :     0.27    0.14    0.13    0.18    0.13    0.14
> sl5 :     0.19    0.19    0.22    0.29    0.18    0.15
> sl6 :     0.18    0.17    0.17    0.20    0.23    0.21
> 
> There are huge chisq numbers in sl1-sec1, sl1-sec3, sl1-sec5, and 
> sl2-sec1
> I guessed the reason is the limit of the total events in trk_mon_lite.
> 
> I can make hbook file with N100000 in run 63465 (for DC alignment).
> I had one test. that is, I had DC Calibration in the exact same 
> process using runs with N100000 and N60000.
> The DC3_N100000.jpg has the CHI-SQ table and fitting function (sl1-
> sec1) made from run with event 100000.
> The DC3_N60000.jpg has the CHI-SQ table and fitting function (sl1-
> sec1) made from run with event 60000.
> 
> In the first jpg file, there are not huge CHI-SQ. In the second 
> file, there are.
> I think that I can not use the option for the event limit any more 
> in trk_mon_lite.
> 
> My error was the following:
> 
>   RZOUT: current RZ file cannot support > 64K records
> 
>          or individual directories > 64K
>   RZOUT: previous cycle(s) for this key (      30)  deleted
>   RZOUT: please consult ZEBRA manual for further details
> 
> 
> I have followed the solution suggested in the part, "How to create 
> very large ntuples (RWN or CWN)" of 
> http://www.jlab.org/~brads/Manuals/pawfaq/. However, I can not 
> fixed my problem.
> Do you have any idea about this problem?
> 
> Sung
> Florida State University
> 

 Florida State University
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