Intermittent Recorders

A forum dedicated to feature requests and the future direction of OpenSees, i.e. what would you like, what do you need, what should we explore

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dborello
Posts: 26
Joined: Fri Sep 05, 2008 11:00 am
Location: University of Illinois at Urbana-Champaign

Intermittent Recorders

Post by dborello »

It would be nice if the recorders could be set to only record every "n steps".

If OpenSees does not have an internal step counter, providing an option to base it on time would be a good options as well.

Thanks,
Dan
fmk
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Post by fmk »

there is the undocumented -dT deltaT option you could try .. it records at the first time step t = t1, the next time the domain time t2 is >= t1+deltaT, and so on.
dborello
Posts: 26
Joined: Fri Sep 05, 2008 11:00 am
Location: University of Illinois at Urbana-Champaign

Post by dborello »

Frank,

Sounds perfect, thanks.

Dan
Fahimeh
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Joined: Mon May 13, 2013 9:50 pm
Location: University of Canterbury

Re:

Post by Fahimeh »

fmk wrote:
> there is the undocumented -dT deltaT option you could try .. it records at the first
> time step t = t1, the next time the domain time t2 is >= t1+deltaT, and so on.

It doesn't work for all recorders. I couldn't use it myself resulted in huge size output files. It doesn't matter if you run analyses couple of times. But when you have to analyze a large 3-D frame say 1000 times, then it will get annoying.
I appreciate if you could do something for all recorders.
fmk
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Re: Intermittent Recorders

Post by fmk »

which one was it not working for?
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