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Items for restart of run

Items for restart of run. Unify .gcon and .ifit (gcon V3.0 (fcon?)) Got more comments/did some format changes Code written to produce it & convert existing files 0123X_wide.gcon available in new format in cvs Need to modify mapset format Cold-start (and all rest) needs to read new format

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Items for restart of run

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  1. Items for restart of run • Unify .gcon and .ifit (gcon V3.0 (fcon?)) • Got more comments/did some format changes • Code written to produce it & convert existing files • 0123X_wide.gcon available in new format in cvs • Need to modify mapset format • Cold-start (and all rest) needs to read new format • Integrate slightly modified gconconv inside coldstart • More compact pattern files (simple, but not yet) • DataBase it ! ? • Support for nonlinearity correction • Hooks provided in new gcon • Implement after approval. • Mixed-layers support • gcon/patt generation already available • New: improve constants by orthogonalization Giovanni Punzi

  2. Requirements for new fit constant file: • wedge-oriented, allows to specify up to the 150 constants sets. • allow multiple layer combinations in the same wedge • allow mix&match of different layers in the same file without having to worry about shifts • must be readable and easily interpreted • avoid elements that are too specifically related to details in the TF structure • trasformation from this file to the memory content must be unique (=> no FP) • allows svtsim/svtmon to know the units of what is stored in SVTD. • Remove magic numbers inside code • Extra features: • Contains just the right amount of information for each constants: units chosen make exact integers sufficient for the required precision • Allows to see easily where precision is lost Giovanni Punzi

  3. // //There is one file per SVT wedge (1/72). Each file can contain several blocks, //one for every supported layer combination (and possibly longhit mask). //EACH block has the format that follows (yes, even the version number is replicated): // Version 3.0 //NPARFIT(always 3, for future expansion) 3 0 00 ! Zin, Long cluster info - input in the TF table 013F ! List of *physical* layer numbers (see http://www.pi.infn.it/~punzi/SVT_numbering.txt). Their number is referred to as NLAYERS below. // List of NLAYERS step sizes (floats). step1 step2 step3 ... // List of the widths of bit-fields for each layer w1 w2 w3 ... // // To convert the input x from CDF units to the units used by the constants stored below // one needs to do: x/(step*2^w). That is, the gcon are in units of total widths of input x, // and specified steps for the output // // 1*(float) + NLAYERS*(int) + 1*(int). Each step converts the output parameter into CDF units cstep Vc Cc dstep Vd Cd fstep Vf Cf //kernel: 1*float+NLAYERS*(int)+1*(int) k0step kern0 kav0 k1step kern1 kav1 k2step kern2 kav2 //This final constant is the conversion factor to get an actual chi-square. chi2step Giovanni Punzi

  4. Version 3 ! File format version number //NPAR 3 //Zin, longhit_mask 0 00 //Layers 1234F 3.750000e-04 3.875000e-04 3.750000e-04 3.750000e-04 2.727077e-03 4.408198e-05 14 14 14 14 12 7 1.172e-05869 127 -517 -528 9414 17 226 1.000e-037288 3569 -970 -3705 2834 15 112 7.670e-04-1413 -397 713 1124 -1374 -10 -393 //Kernel 5.000e-01238 -3102 6644 -3882 403 3 -69 5.000e-014614 -6144 -1296 2633 -941 0 -7 5.000e-01-338 -38 184 210 -3604 85 -86 1.000e+00 Version 3 ! NEW BLOCK STARTS HERE //NPAR 3 //Zin, longhit_mask 0 01 //Layers 1235F …… Giovanni Punzi

  5. Orthogonalization • The parameters and the constraints often come out coupled. • Can be tracked down to the “Bayesian character” of the parameter linearization procedure. • Can remove by orthogonalizing • Better resolution. • Remove nonlinearity from cross-talk. • Stability/convergence Giovanni Punzi

  6. Effect of orthogonalization Version 3 ! File format version number //NPAR 3 //Zin, longhit_mask 0 00 //Layers 1234F 3.750000e-04 3.875000e-04 3.750000e-04 3.750000e-04 2.727077e-03 4.408198e-05 14 14 14 14 12 7 1.172e-05869 127 -517 -528 9414 17 226 1.000e-037288 3569 -970 -3705 2834 15 112 7.670e-04-1413 -397 713 1124 -1374 -10 -393 //Kernel 5.000e-01238 -3102 6644 -3882 403 3 -69 5.000e-014614 -6144 -1296 2633 -941 0 -7 5.000e-01-338 -38 184 210 -3604 85 -86 1.000e+00 Version 3 ! File format version number //NPAR 3 //Zin, longhit_mask 0 00 //Layers 1234F 3.750000e-04 3.875000e-04 3.750000e-04 3.750000e-04 2.727077e-03 4.408198e-05 14 14 14 14 12 7 1.172e-05 -18 -15 -2 10 95 236 4 1.000e-03 6425 3823 -548 -3499 -2921 151 -32 7.670e-04 -1095 -502 462 1120 646 -58 -334 //Kernel 5.000e-01 2252 -5402 5198 -2221 51 -1 -60 5.000e-01 -3863 3990 3890 -3895 1085 -1 -20 5.000e-01 -340 -46 197 196 -3489 82 -83 1.000e+00 Giovanni Punzi

  7. Things to understand (list from last time) • Efficiency (wide vs. narrow patterns ?) Lots of progress (not from myself) • Fixes ? • Some small strange effects remaining • Coupling between parameters and 2 • Solved by orthogonalization • Timing/TF combinatoric: are ‘narrow roads’ narrow enough for 20kHz rate ? • Anybody looking at this ? • Give up barrel-crossers ? (mech. only ?) • Let’s vote ! • Start looking towards 4/5 • Can accommodate all constants in `fcon’ • SVT-Offline parameters match well; still want to cross-check gcon/patt gen. simple model to full simulation for small biases. Giovanni Punzi

  8. Plan for startup • Start over with 0123x_wide (new format) • Go to orthogonalized constants • Find beam position - make new gcon and patterns (~ 1 day) • Reduce residual beam tilt • If beam offset > 1mm, add nonlinearity corrections • Add internal corrections to gain extra ~micron and narrow 2 Giovanni Punzi

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