...
This is the rh9 v rhel4 smackdown edition of GlastRelease reports. (See this validation page.)
Comparisons are for running v17r34p0 using the rh9_gcc32opt and rhel4_gcc32opt builds on rhel4 linux32 nodes.
...
MCTERMZ (Z distance of MC particle termination) | MCTERMZ for 1 GeV Proton Test |
---|---|
|
|
POSENERGYDEP (MC position hit deposited energy) | |
TKRHITACTDIS (Active Distance for tracker hits) | |
The plots seem to tell a similar story, somewhat less hits in the tracker for the rhel 4 run, which as Richard points out has the higher number of CrElectronSplash and CrElectronPrimary, and less CrProtonPrimary. There are more position hits at low energy for the rhel 4 run.
POSMCTKRTRAY (tracker tray numbers with position hits) | TKRHITPLANEZ (Z distance of tracker hit planes) |
---|---|
TKRLAYER (hits in tracker layers) | |
...
Here is the breakdown of TkrHitsInLayer for each of the broad subspecies:
TkrHitsInLayerNN (All, top points; overlap sample, bottom points) | TkrHitsInLayerNN by species |
---|---|
|
Note that when I select events with the same energy/particle type/direction the tracker hits by layer distribution is identical (lower red points in above left plot) for the rh9 and rhel 4 runs. This also suggests that similar particles are treated the same for both builds and that it is only the input differences that are skewing the distributions.