Re: [fluka-discuss]: poor efficiency using user-written source?

From: Santana, Mario <msantana_at_slac.stanford.edu>
Date: Mon, 13 Jul 2020 17:55:52 +0000

Hello,

Could you clarify your question?

  * What do you mean by "but user-written source case cost almost 4 hours"?
     * Is it 4 hours CPU per history? or for the entire simulation ('Total CPU')?
     * Is that for 'neutron_gamma_source.f"?
  * You mention that the for the 'built in' source 'cost 7 seconds'...
     * Is that 7 seconds per primary?
     * What is the built-in source? what card did you use as built-in source?
     * Is the built-in source doing the same as the neutron_gamma_source? (unlikely...)
  * Are you implying t4h minus 7s are spent to process each primary in the custom source routine?

-M


________________________________
From: owner-fluka-discuss_at_mi.infn.it <owner-fluka-discuss_at_mi.infn.it> on behalf of 李立华 <13691416247_at_ciae.ac.cn>
Sent: Friday, July 10, 2020 5:59 PM
To: fluka_collaboration <fluka-discuss_at_fluka.org>
Subject: [fluka-discuss]: poor efficiency using user-written source?


Dear Fluka experts:

    I do a simulation using user-written source (read direction and energy from 7 files),

and use built-in source, the built-in source case only cost 7 seconds, but user-written source case

cost almost 4 hours, see figures below:

can i speed up when using user-written source?

the related files in the email attachment enclosure.

with best regards!

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Received on Mon Jul 13 2020 - 21:38:11 CEST