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Entry  07 Jul 2026, Marius Koeppel, Suggestion, Multithreaded PySequencer  
    Reply  08 Jul 2026, Konstantin Olchanski, Suggestion, Multithreaded PySequencer  
       Reply  03 Aug 2026, Mark Grimes, Suggestion, Multithreaded PySequencer  
Message ID: 3259     Entry time: 03 Aug 2026     In reply to: 3243
Author: Mark Grimes 
Topic: Suggestion 
Subject: Multithreaded PySequencer  
> > I was wondering if one can use multiple pysequencers at the same time and if not
> > if this feature is planned in the future? Our experiment (mu3e) has one frontend
> > per detector and each sequencer would only access a subset of ODB entries.
> 
> I believe sequencer design supports this, same as mlogger supports multiple output 
> files and mhttpd supports multiple listener ports.
> 
> But how to do this with pysequencer, I am not sure. Simplest is to wait a few more 
> weeks for Ben to return from vacation.
> 
> K.O.

I looked into this, and it has been possible for at least a year. Just start the sequencer with `-c MyUniqueName` and 
then all of the state etc. can be controlled from the ODB location `/PySequencerMyUniqueName/`.
And obviously use different names for each instance.
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