handling a large amount of data with trees

Dear all,

    I am trying to handle a large amount of data using trees. What I should store is 1 integer and 5 floats ~150 times per each channel out of 160000.

    The simplest way to proceed seemed to be creating a tree with 6 branches for the 6 variables (1 int + 5 floats), and then to fill it 150*160000 times. But then, when trying to write on a file this tree, the memory required is too big, and AliRoot (I have to use AliRoot) crashes - even if in case I use root it doesn't. I have tried also with only one branch and 6 leaves, but nothing changes.

    Probably this is not the most convenient approach to exploit the functionalities of trees... Do you have any suggestions that could help me?

   Thanks a lot for your help.
    Best Regards,

       Chiara Received on Tue Mar 06 2007 - 10:34:19 CET