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Forum: Multithreading
Re: Question Simulation hang up (bilal)
Re: Question Re: Simulation hang up (Andrea Dotti)
Re: Sad Re: Simulation hang up (bilal)
Date: 26 Mar, 2015
From: Andrea Dotti <Andrea Dotti>

On Thu, 26 Mar 2015 16:26:49 GMT, bilal wrote:
> I encountered this issue before and saw the answer in a previous thread
> so i keep my total number of particles upto a maximum of 1x10^9. However
> i would love to see if someone change the data member from int to
> something else and post how to do it.
This is not trivial, and it is not recommended because it could cause problems of "overflows" in the physics results. For example, consider accumulation of a dose, if you have really a large number of primaries you could lose precision of the results. The recommended way is to not go over a billion of events in a single job.

> Okay i check with the top command and all the cpus are busy 100 %. But i
> print the events on screen (from event action) and it shows only a
> couple of threads updating the number of events processed rest are
> silent. 

Are you sure the problem is not simply in logging?

> I tried to run the example with the memory leak command however
> i cant understand the output (its a big file and i dont know how to find
> where is the memory leak and how to fix it). Thank you for the help i
> would appreciate any further comments or suggestions.
you do not need valgrind for this test, again using "top" monitor the memory usage and verify it does not grow without control.


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1 Feedback: Re: Simulation hang up   (bilal - 26 Mar, 2015)
(_ Idea: Re: Simulation hang up   (Andrea Dotti - 26 Mar, 2015)
(_ Note: Re: Simulation hang up   (bilal - 26 Mar, 2015)
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