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Re: TPC digitization blocks everything for too many cluster events [message #10829 is a reply to message #10828] Thu, 24 June 2010 13:06 Go to previous messageGo to previous message
Tobias Stockmanns is currently offline  Tobias Stockmanns
Messages: 489
Registered: May 2007
first-grade participant
From: *ikp.kfa-juelich.de
Dear colleagues,

I have studied the FairLink problem in more detail. The problem is the enormous amount of data created for the TPC. For one special event it has: 19281 PrimäriClusters, 42958 Drifted Electrons, 42958 Avalanches, 80300 Signals and 1,674,929 Digis.

All this objects have links to the previous one. I could speed up the linking by a factor of 2 by using std::set instead of std::vector. Nevertheless this one event takes 500 s on my PC. I think that for the TPC one should bypass the linking and only connect the TpcClusters with the MC points and only for dedicated studies one switches on linking.

Cheers,

Tobias
 
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