TrackerTFP/python/KalmanFilterFormats_cfi.py

0001 import FWCore.ParameterSet.Config as cms
0002
0003 TrackTriggerKalmanFilterFormats_params = cms.PSet (
0004
0005   EnableIntegerEmulation = cms.bool( True ), # enables emulation of integer calculations
0006
0007   WidthR00 = cms.int32( 20 ), # number of bits used to represent R00
0008   WidthR11 = cms.int32( 20 ), # number of bits used to represent R11
0009
0010   WidthC00 = cms.int32( 20 ), # number of bits used to represent C00
0011   WidthC01 = cms.int32( 20 ), # number of bits used to represent C01
0012   WidthC11 = cms.int32( 20 ), # number of bits used to represent C11
0013   WidthC22 = cms.int32( 20 ), # number of bits used to represent C22
0014   WidthC23 = cms.int32( 20 ), # number of bits used to represent C23
0015   WidthC33 = cms.int32( 20 ), # number of bits used to represent C33
0016
0017 # configuration of internal KF variable bases which can be shifted by powers of 2 w.r.t. KF output track parameter
0018 # TrackerTFPProducer_params.PrintKFDebug printouts unused MSB for each variable, so that one could consider decreasing the basseshift by that amount
0019 # numerical instabillity (negative C00, C11, C22, C33) requires smaller baseshifts of related variables (rx, Sxx, Kxx, Rxx, invRxx)
0020 # if a variable overflows an Exception will be thrown and the corresponding baseshift needs to be increased.
0021
0022   BaseShiftx0           = cms.int32(   0 ),
0023   BaseShiftx1           = cms.int32(  -7 ),
0024   BaseShiftx2           = cms.int32(  -1 ),
0025   BaseShiftx3           = cms.int32(  -1 ),
0026
0027   BaseShiftr0           = cms.int32(  -8 ),
0028   BaseShiftr1           = cms.int32(   0 ),
0029
0030   BaseShiftS00          = cms.int32(  -4 ),
0031   BaseShiftS01          = cms.int32( -12 ),
0032   BaseShiftS12          = cms.int32(   0 ),
0033   BaseShiftS13          = cms.int32(  -1 ),
0034
0035   BaseShiftR00          = cms.int32(  -5 ),
0036   BaseShiftR11          = cms.int32(   6 ),
0037
0038   BaseShiftInvR00Approx = cms.int32( -30 ),
0039   BaseShiftInvR11Approx = cms.int32( -41 ),
0040   BaseShiftInvR00Cor    = cms.int32( -24 ),
0041   BaseShiftInvR11Cor    = cms.int32( -24 ),
0042   BaseShiftInvR00       = cms.int32( -30 ),
0043   BaseShiftInvR11       = cms.int32( -41 ),
0044
0045   BaseShiftS00Shifted   = cms.int32(  -1 ),
0046   BaseShiftS01Shifted   = cms.int32(  -7 ),
0047   BaseShiftS12Shifted   = cms.int32(   4 ),
0048   BaseShiftS13Shifted   = cms.int32(   4 ),
0049
0050   BaseShiftK00          = cms.int32(  -7 ),
0051   BaseShiftK10          = cms.int32( -13 ),
0052   BaseShiftK21          = cms.int32( -13 ),
0053   BaseShiftK31          = cms.int32( -13 ),
0054
0055   BaseShiftC00         = cms.int32(   6 ),
0056   BaseShiftC01         = cms.int32(   1 ),
0057   BaseShiftC11         = cms.int32(  -6 ),
0058   BaseShiftC22         = cms.int32(   5 ),
0059   BaseShiftC23         = cms.int32(   6 ),
0060   BaseShiftC33         = cms.int32(   5 ),
0061
0062   BaseShiftr0Shifted    = cms.int32(   4 ),
0063   BaseShiftr1Shifted    = cms.int32(   7 ),
0064   BaseShiftr02          = cms.int32(  -1 ),
0065   BaseShiftr12          = cms.int32(  10 ),
0066   BaseShiftchi20        = cms.int32( -10 ),
0067   BaseShiftchi21        = cms.int32( -10 )
0068
0069 )