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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.
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MCTERMZ (Z distance of MC particle termination) | MCTERMZ for 1 GeV Proton Test |
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POSENERGYDEP (MC position hit deposited energy) | |
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TKRHITACTDIS (Active Distance for tracker hits) | |
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Here is the breakdown of TkrHitsInLayer for each of the broad subspecies:
TkrHitsInLayerNN (All, top points; overlap sample, bottom points) | TkrHitsInLayerNN by species |
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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.