Re: [fluka-discuss]: Max Voxel Number

From: Paola Sala <paola.sala_at_mi.infn.it>
Date: Mon, 29 Aug 2016 09:06:49 +0200

> Dear Paola,
>
> thank you for your answer. Dynamic memory allocation is of course very
> good
> news! So the nummber of voxels I can import will be limited only by the
> amount of RAM I have, am I right?
Yes
>
> I had some interesting ideas, which I wanted to try, but nothing urgent, I
> will wait for the next FLUKA release.
>
Thank you for your patience
> Regards
> Yuri
>
> 2016-08-26 16:51 GMT+02:00 Paola Sala <paola.sala_at_mi.infn.it>:
>
>> Dear Yuri,
>> the amount of memory that you ask for may cause problems with memory
>> addressing in the distributed fluka version. Take into account that you
>> will need memory also for internal data, and probably a lot of memeory
>> for
>> scoring.
>> The next release will overcome this problem and will allow for dinamic
>> allocation of the memory.
>> ... can you wait? Let's say beginning of next year.
>> Regards
>> Paola
>> > Dear FLUKA experts,
>> >
>> > I voxelized a complex triangular-polygon mesh and imported it in FLUKA
>> > using the Voxel card. The maximum number of Voxels, which I have in my
>> > case
>> > is about 45 Million, which is not sufficient for a precise geomterical
>> > description.
>> > I found a prevoius discussion about this topic :
>> >
>> > http://www.fluka.org/web_archive/earchive/new-fluka-discuss/0913.html
>> >
>> > Can I get a recompiled version of the code, with let's say, 1E9
>> > Voxel*2bytes=2 GB RAM?
>> >
>> > I know that the number 1E9 Voxels will eventually decrease, depending
>> on
>> > my
>> > geometry, bin scoring, etc., but 2 GB is the maximum RAM per core in
>> our
>> > cluster.
>> >
>> > Regards
>> > Yuri
>> >
>>
>>
>> Paola Sala
>> INFN Milano
>> tel. Milano +39-0250317374
>> tel. CERN +41-227679148
>>
>>
>


Paola Sala
INFN Milano
tel. Milano +39-0250317374
tel. CERN +41-227679148

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Received on Mon Aug 29 2016 - 10:58:27 CEST

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