Re: "memory" problems in CG?

From: Silvia Pani (
Date: Fri Jan 19 2007 - 12:12:23 CET

  • Next message: Chris Theis: "RE: "memory" problems in CG?"

    Ciao Alfredo,

    sorry, I didn't mean that the package has some problems (I was
    suspecting that a couple of slabs of material shouldn't scare it too
    much), but that there might be something that I am missing, such as
    some option that needed to be enabled.
    However, I did try the debugger but it gets stuck without any error
    messages at the same point as before, i.e., after reading the body
    input and before the region data input (and the debugger output...),
    with the lines
    With any of the regions from the subset removed the debugger doesn't
    report any error (I tried several grids).
    Any other suggestion?
    I went round the problem by modifying the geometry (I replaced a
    shielding box with an L, which is probably more appropriate for
    describing my system) and now it works, so it is really just a matter
    of curiosity!

    Thank you


    On Jan 18, 2007, at 2:11 PM, Alfredo Ferrari wrote:

    > ... about modelling more complex systems: we routinely run systems
    > with tens of thousands regions, modelling km's of accelerators with
    > no problems. There is no limitation in the FLUKA geometry (apart a
    > limit
    > of 20000 different "prototype" regions before repetitions, with
    > repetitions they can be millions). Again, if you have problems it is
    > almost certain you made a mistake in defining your geometry.
    > Removing one
    > or more regions and getting it (apparently) to work, doesn't prove at
    > all it was (and it is after removal) correct. Only running the
    > geometry
    > debugger can help, please run it.
    > Ciao
    > Alfredo
    > On Thu, 18 Jan 2007, Silvia Pani wrote:
    >> Dear Mattias,
    >> Thank you for your prompt reply. Unfortunately it doesn't work!
    >> Apologies to everybody for not sending an attachment (for some
    >> reason I had thought that e-mails with attachments were
    >> rejected!). Here is the attachment with the change suggested by
    >> Mattias in case someone has some time to look into it.
    >> I guess I can go round the problem in one way ore another, but I
    >> was a bit curious as to what happens in case I need to model more
    >> complex systems. Has anybody experienced a similar problem?
    >> Regards,
    >> Silvia
    > --
    > +---------------------------------------------------------------------
    > -------+
    > | Alfredo Ferrari || Tel.:
    > +41.22.767.6119 |
    > | CERN-AB || Fax.:
    > +41.22.767.7555 |
    > | 1211 Geneva 23 || e-mail:
    > |
    > | Switzerland ||
    > |
    > +---------------------------------------------------------------------
    > -------+

    Dr Silvia Pani
    University College London
    Department of Medical Physics and Bioengineering
    Malet Place Engineering Building
    London WC1E 6BT
    Tel +44 20 76790259

  • Next message: Chris Theis: "RE: "memory" problems in CG?"

    This archive was generated by hypermail 2.1.6 : Fri Jan 19 2007 - 12:20:14 CET