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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. 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

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  1. Status of the STS Reconstruction S. Gorbunov and I. Kisel GSI / KIP CBM Collaboration Meeting GSI, February 27, 2008

  2. 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

  3. D-S vs. S-S Strip Detectors: Tracking Efficiency Ivan Kisel, GSI

  4. Different Acceptances in MVD and STS ? Ivan Kisel, GSI

  5. Kalman Filter Track Fit on Multicore Systems Real fit time/track (us)‏ Logarithmic scale! #tasks Håvard Bjerke Ivan Kisel, GSI

  6. Parallelization of the CA Track Finder Create tracklets Collect tracks 1 2 Håvard, Sergey, Ivan Ivan Kisel, GSI

  7. 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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