[fluka-discuss]: Estimating hardware configurations for bremsstrahlung simulations

From: Marlon Saveri Silva <marlon.saveri_at_lnls.br>
Date: Thu, 25 Feb 2016 19:30:39 +0000

Dear Fluka experts,

   I'm working with some bremsstrahlung simulations for synchrotron beamlines in order to check dose absorbed by some components and equivalent dose in some regions. I'm already applying 1atm inside electrons pipe and using that recommended biasing techniques (from ADONE example) to make faster simulation. Ergo, In order to get USRBIN statistic better than 20%, I need at least 1E8 primaries. Using 11GB RAM and 7 Intel Xeon 3.2GHz processors in a Ubuntu Virtual Machine mounted at Windows 7 64bits, 4 cycles and 6 SPAWNS, it spends more than 8 days, generating more than 6Gb of files.

   I believe some of you have already done such kind of study and could enlighten me about the best hardware configuration for such case; for example, what do we need for the purpose of running that simulation, with 5E8 primaries, in 1 day.

   Since there're lots of cases to simulate (and some requires more than 1E8 primaries), I intend to rent space in a supercomputer from another institution. In order to accomplish this, I need to fill a form telling them the computational parameters I need (number of cores, processors, hd space, parallelism technique, ram memory...) and the number of hours of simulation.

Regards,

Marlon Saveri Silva
Mechanical Engineer
Beamlines Instrumentation and Support Group - SIL
Brazilian Synchrotron Light Laboratory- LNLS - CNPEM



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Received on Thu Feb 25 2016 - 22:20:34 CET

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