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Status of the STS Reconstruction. S. Gorbunov and I. Kisel GSI / KIP. CBM Collaboration Meeting GSI, February 27, 2008. First Step Implementing Single-Sided Strip Detectors. Standard geometry with all strips Thickness is the same for D-S and S-S strip stations

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Status of the sts reconstruction

Status of the STS Reconstruction

S. Gorbunov and I. Kisel

GSI / KIP

CBM Collaboration Meeting

GSI, February 27, 2008


First step implementing single sided strip detectors
First Step Implementing Single-Sided Strip Detectors

  • Standard geometry with all strips

  • Thickness is the same for D-S and S-S strip stations

  • Front stations positioned as in sts_allstrips.geo, back stations shifted in Zst+1cm

  • Fake space points are produced as in the double-sided scenario (within the same sector)

  • True space points taken from MC (different sectors possible)

D-S

S-S

  • No SIMDization

  • No sorting of strips

  • No sector navigation

  • No memory optimization

Ivan Kisel, GSI




Kalman filter track fit on multicore systems
Kalman Filter Track Fit on Multicore Systems

Real fit time/track (us)‏

Logarithmic

scale!

#tasks

Håvard Bjerke

Ivan Kisel, GSI


Parallelization of the ca track finder
Parallelization of the CA Track Finder

Create tracklets

Collect tracks

1

2

Håvard, Sergey, Ivan

Ivan Kisel, GSI


Next steps
Next Steps

  • Exclude space points

  • Use strips directly

  • Hit producer inside L1

  • Sectorized geometry and navigation

  • Disconnect L1 from Cbmroot

  • Parallelization (multithreading or Ct)

  • Benchmark on modern Intel machines

cbmroot/L1

L1Tracks

L1Event

(L1Strips, L1Hits)

L1Geometry

L1Algo

Ivan Kisel, GSI


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