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GQLink improvements » History » Version 1

Lucio Santi, 04/21/2017 11:07 AM

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h1. GQLink improvements: profiling & statistics
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* CMS application features:
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** Full detector geometry 
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** Volume base magnetic field
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** @epsMin@ = @dQRel@ = 1e-5
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** Geant4 v10.03.p01
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|_.2000 events, 10 GeV pi-               |
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|                                        |_.After improvements                                   |_.Before improvements                                 |
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|_.Simulation time                       | 1973.72 seconds (1701.54 seconds in G4; *16% slower*) | 2109.13 seconds (1701.54 seconds in G4; *24% slower*)|
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|_.Geant4 steps                          | 29899541                                              | 29234603                                             |
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|_.Steps w/safety=0                      | 20305715 (67.91%)                                     | 19414230 (66.41%)                                    |
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|_.Steps w/safety!=0                     | 9593826 (32.09%)                                      | 9820373 (33.59%)                                     |
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|_.QSS substeps                          | 77604560 (Avg: 2.60 per G4 step)                      | 106999742 (avg: 3.66 per G4 step)                    |
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|_.Volume crossings                      | 2435733 (8.15%)                                       | 2482502 (8.49%)                                      |
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|_.Reinits                               | 12176648 (40.73%)                                     | 12459358 (42.62%)                                    |