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Forum: Analysis
Re: Question memory error when creating many Histogram1D's (Victor_Makarov)
Re: None Re: memory error when creating many Histogram1D's (Kazuyoshi Furutaka)
Re: None Re: memory error when creating many Histogram1D's (Andreas Pfeiffer)
Date: 04 Jul, 2007
From: Kazuyoshi Furutaka <Kazuyoshi Furutaka>

Hi Andreas

From: "Andreas Pfeiffer " <andreas.pfeiffer@cern.ch>
Subject: Re: memory error when creating many Histogram1D's
Date: Wed, 4 Jul 2007 06:46:41 -0700

> >>    tree = tf->create("testem4.XML" ,"XML" ,readOnly,createNew,  
> >> options);
> >
> > You created a tree in a XML file: as I understand correctly,
> > when saving into a XML file, the tree data won't be flushed
> > and accumulated in memory of your machine until a run ends,
> > and eventually exhaust it.
> 
> this is true if you deal with Tuples (and unbinned Histograms
> if there is no limit set for them for auto-conversion), but
> for binned Histograms (as is the case here) this is not an
> issue they have a fixed memory footprint.

Ah, I misunderstood...


Kazuyoshi
--
Kazuyoshi Furutaka
furutaka@jb3.so-net.ne.jp

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