Tree reading buffer

ROOT
1

Hi rooters,

I have some trees that have been written with only one branch like this:
fTree->Branch( “event”, “TEvent”, &e, 16000, 2 );
The buffer size is 16 kb.
As I have to read more tree at a time (for an OpenMosix cluster), I need now to read it using a reading buffer of at least 2 Mb but I do not know how to tell this to ROOT.
Do you think I have to rewrite all the trees?
Thank you for help,

Francesco

2

[quote]As I have to read more tree at a time (for an OpenMosix cluster[/quote]What do you mean?
It may be that calling TTree::SetMaxVirtualSize or calling TTree::LoadBaskets is what you need.

Philippe