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

Sungkyun Park sp06k at fsu.edu
Tue Feb 22 17:31:55 EST 2011


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
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sp06k.vcf
Type: text/x-vcard
Size: 267 bytes
Desc: Card for Sungkyun Park<sp06k at fsu.edu>
Url : https://mailman.jlab.org/pipermail/frost/attachments/20110222/c98ec266/attachment.vcf 


More information about the Frost mailing list