FWD Software

["Van Buren, Gene" <gene AT bnl.gov>]

Hello, forward thinkers

I'd like to call your attention to the post I just made to the production 
email list and Mattermost channel:
https://chat.sdcc.bnl.gov/star/pl/9u3gxfyhcbfp8mpnuqb47reyxy

There are now MuDsts and PicoDsts with FWD tracking enabled.

I would also like to add that the stderr output of the production jobs now 
contains thousands of lines like this:
The points are collinear, curvature is undefined.

There is also this less common message:
genfit::Exception thrown with excString:
RKTrackRep::RKutta ==> momentum too low: 0.851434 MeV
in line: 1844 in file: 
/cvmfs/star.sdcc.bnl.gov/star-spack/spack/var/spack/stage/smirnovd/spack-stage-genfit-b496504a-mlcdbxg7bmdsbfrppi7qmzppfw4lh52r/spack-src/trackReps/src/RKTrackRep.cc
with fatal flag 0

For example, in this file:
/star/rcf/prodlog/P25ib/log/daq_Run22_pp500_physics/st_physics_23037056_raw_3500067.err.gz
representing 1188 events processed, we see 6741 of the first message, and 148 
of the second.

I'm also disappointed to see 816934 StFwdTrackMaker:INFO messages in the 
stdout file for this:
/star/rcf/prodlog/P25ib/log/daq_Run22_pp500_physics/st_physics_23037056_raw_3500067.log.gz

This is essentially doubling the size of the log files. This won't be a 
show-stopper like we had before, but it certainly seems unnecessary.

Hope this is helpful,
-Gene


> On Dec 18, 2025, at 11:39 AM, Brandenburg, Daniel <brandenburg.89 AT osu.edu> 
> wrote:
> 
> This Message Is From an External Sender
> This message came from outside your organization.
> Hi Gene, Barak,
> 
> I somehow missed that `fwdTrack` is not in the production chain (I thought 
> it was part of base option). 
> 
> Gene - you are correct that what we have now does allow afterburner mode. 
> However, I still intended to have the fwdTrack option included to provide 
> FWD tracks in the current (albeit limited value) version until the final 
> alignments are in place. 
> 
> Sorry I missed this. Let’s talk today since I am at BNL. I want to make 
> sure I understand what options there are. 
> 
> Best,
> Daniel Brandenburg
> Assistant Professor
> College of Arts and Sciences
> Department of Physics
> Ohio State University
>  From: Van Buren, Gene <gene AT bnl.gov>
> Date: Wednesday, December 17, 2025 at 12:57 AM
> To: Schmookler, Barak A <baschmoo AT Central.UH.EDU>
> Cc: star-fwd-software-l AT lists.bnl.gov <star-fwd-software-l AT lists.bnl.gov>, 
> Brandenburg, Daniel <brandenburg.89 AT osu.edu>
> Subject: Re: [[Star-fwd-software-l] ] No FWD meeting today, productions
> 
> 
> 
> Hi, Barak
> 
> Thank you for having a look at the output files. The production intent as I 
> have understood it (and repeatedly have tried to verify) is that it will 
> enable post-processing FWD track reconstruction, by ensuring the FWD 
> subsytem hits are all present in the DSTs. Maybe you can verify that much?
> 
> Thanks,
> -Gene
> 
> > On Dec 16, 2025, at 10:40 PM, Schmookler, Barak A 
> > <baschmoo AT Central.UH.EDU> wrote:
> >
> > This Message Is From an External Sender
> > This message came from outside your organization.
> > Hi Daniel, Gene:
> >
> > I took a look at some of the PicoDst files below. The FwdTracks.* 
> > branches all seem to be empty.
> >
> > For example, if I do PicoDst->Scan("FwdTracks.mChi2"), I don't see any 
> > tracks.
> >
> > I thought the forward tracking — with the correct survey info — should be 
> > included in this new PicoDst production.
> >
> > Best,
> > Barak
> >
> >
> > From: star-fwd-software-l-request AT lists.bnl.gov 
> > <star-fwd-software-l-request AT lists.bnl.gov> on behalf of "Brandenburg, 
> > Daniel" <star-fwd-software-l AT lists.bnl.gov>
> > Sent: Tuesday, December 16, 2025 11:40 AM
> > To: star-fwd-software-l AT lists.bnl.gov <star-fwd-software-l AT lists.bnl.gov>
> > Subject: [[Star-fwd-software-l] ] No FWD meeting today, productions
> > This Message Is From an External Sender
> > This message came from outside your organization.
> >  Hi all,
> >
> > Since I am traveling to BNL I cannot host the fwd meeting. See below the 
> > first production files from Run22 from gene:
> >
> > PicoDst files:
> > /star/data66/reco/production_pp500_2022/ReversedFullField/P25ib/2022/001/23001005/st_physics_23001005_raw_3500085.picoDst.root
> > /star/data104/reco/production_pp500_2022/ReversedFullField/P25ib/2022/002/23002056/st_physics_23002056_raw_0000005.picoDst.root
> > /star/data36/reco/production_pp500_2022/ReversedFullField/P25ib/2022/003/23003045/st_physics_23003045_raw_3000067.picoDst.root
> > /star/data56/reco/production_pp500_2022/ReversedFullField/P25ib/2022/007/23007096/st_physics_23007096_raw_6500078.picoDst.root
> > /star/data41/reco/production_pp500_2022/ReversedFullField/P25ib/2022/008/23008017/st_physics_23008017_raw_4000025.picoDst.root
> > /star/data69/reco/production_pp500_2022/ReversedFullField/P25ib/2022/008/23008045/st_physics_23008045_raw_5000008.picoDst.root
> > /star/data47/reco/production_pp500_2022/ReversedFullField/P25ib/2022/009/23009046/st_physics_23009046_raw_3500027.picoDst.root
> >
> > MuDsts are in the same location (with "pico"->"Mu").
> >
> >
> >
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