Re: Problems with ~9000 regions and materials.

Dear Juan,

 I tried to run your input files and a first thing I observed is the
 enormous initialization time you need, due to the fact that
 in each of your 432 or 9776 regions in your carbon target you
 define - in practice - a different material.

 Since the material of your target is always carbon and you redefine
 only different densities, I would try to use a different approach.
 I would continue to use the same number of regions, but using always
 carbon with the same density, varying in the appropriate way
 the volume of the region (and then the path of your protons in the beam)
 in order to have the SAME amount of material you have now.
 In this way you don't have to redefine carbon each time.
 I saw that at the end you score the deposited energy: mantaining your
 number of regions you should see in each region the effect of
 a different density, simply acting on the geometry.

 Hope it helps,

 Regards,

 Anna

> Dear Fluka experts,
> I am having troubles when running a simulation of a cylinder made of
> 9.776 regions or 927 regions. When I tried it with 432 regions it seems
> works.
> My GLOBAL card is set to allow 10.000 regions but Fluka stops reading
> the inp file, or at least is what I think, on the MATERIAL cards at my
> material 670. As every region has a different value of density I create
> 9.776 or 927 materials one for each region and the corresponding LOW-MAT
> card, I dont know if this is a problem.
> The inp files are attached. one for the 9.776 regions and another with
> 432 regions.
> Regards,
> Juan.
>
Received on Mon May 11 2009 - 09:38:23 CEST