P latform stability and track-fit problems. M. Moulson, T. Spadaro, P. Valente Tracking Meeting, 18 Jul 2001. Warning sign: platform dependence. Test of DBV-10 on SunOS and AIX: Input: 1000 raw events Output in ksl stream: AIX: 11 events, incl. 3 not found on SunOS
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Platform stability and track-fit problems
M. Moulson, T. Spadaro, P. Valente
Tracking Meeting, 18 Jul 2001
Input: 1000 raw events from run 18805
Table summarizes differences in ksl stream
Get space points from track pars. (q)
i < 1
Get residuals, c2, V = dc2/dq
c2 > c2(old)
Vdq = q; q = q + dq
Dc2 < cut
Get hits to flip
Sort; pick worst
Store track pars.
DFITER (15 times)
c2 < input
Restore track pars.
August downtime will be only point in near future when large-scale reprocessing possible