Tools for Event Filter Physics Studies
Introduction |
Timestamps |
CBNT Extensions |
Scripts |
The event filter has to accomplish its task within stringent time constraints. Using the offline reconstruction package ATRECON as tool for event filter studies, additional timestamps have been added to the calorimeter reconstruction and to the pattern recognition package xKalman.
The timestamps should only measure the execution time of the reconstruction algorithms without data access. Moreover, the idea is to have detailed information from the different reconstruction steps. The timing is done by calls to the TIMED routine, which returns the CPU time in seconds used since the last call. The resolution of TIMED is 10ms.
The timing values for the different reconstruction packages are stored in individual ZEBRA banks (for the names see below) found under the (new) /RECB/TIME bank. They can also be included into the extended CBNT (see here for necessary modifications to the CBNT code).
| Package | Bankname | Timestamp | includes | Modified files |
|---|---|---|---|---|
| EM calo | EMCA | calocomb | building of combined matrix | ecalrec.age replacing the file in offline/atrecon/calorec ecaltime.inc to be added to offline/atrecon/include/ atrecon/calorec |
| maxima | finding of local maxima | |||
| etaphi | calculating eta/phi region | |||
| cone | determining cells in cone | |||
| property | calculating cluster properties | |||
| refine | refining cluster properties | |||
| emid | calculating values for particle ID | |||
| iso | determining energies for isolation | |||
| Hadron calo *) | HADC | calocomb | building of combined matrix | hcalrec.age replacing the file in offline/atrecon/calorec hcaltime.inc to be added to offline/atrecon/include/ atrecon/calorec |
| maxima | finding of local maxima | |||
| etaphi | calculating eta/phi region | |||
| separation | determining separation to other found clusters | |||
| parameter | evaluation of cluster parameters | |||
| Missing energy | MISE | emistime | calculate missing energy | emisrec.age replacing the file in offline/atrecon/calorec emistime.inc to be added to offline/atrecon/include/ atrecon/calorec |
| xKalman | XKAT | road | finding of roads | xkalman.age replacing the file in offline/atrecon/xkalman thelix.F replacing the file in offline/atrecon/xkalman xkaltime.inc to be added to offline/atrecon/include/ atrecon/xcdes comtime.inc to be added to offline/atrecon/include/ atrecon/xcdes |
| readTRT | reading of TRT digits | |||
| roadTRT | primary track search in TRT | |||
| readSCT | reading of SCT digits | |||
| sort | sort counters in propagation order | |||
| trackSCT | track propagation through SCT/pixel | |||
| bremSCT | bremfit in SCT/pixel | |||
| trackTRT | track propagation through TRT | |||
| bremTRT | bremfit in TRT | |||
| compare | compare found track candidates | |||
| repeat | repeat track search starting from found tracks |
*) Please observe that this is the old hadron reconstruction package which is no more called from ATRECON by default. It is replaced by the jetfinder library, which does not yet include any timestamps.
