Is there a way to speed up sensitivity derivation in OPTISTRUCT ?

Florent S
Florent S Altair Community Member
edited June 2021 in Community Q&A

Hi, 

I am working on OPTISTRUCT (2017.3.0.17) and I would like to know if there is a way/an option to speed up sensitivity derivation. (like using more RAM/CPU/...?).

I am running linear analysis with responses in compliance, buckling and load flux. 
I calculate the sensitivities of these responses to a great number of design variables (from 40 000 to 400 000) via a OPTPRM,DESMAX 0 and output the sensitivities to an ASENS or HGSENS file.  
With a moderate number of DESVAR (40 000-50 000) I am already at 4 min calculation time (.out indicates 1000 MB ram, -ncpu 4) but I feel that the resources of the calculation cluster are not used at its full potential (the indication of RAM use is typically equivalent to that of a simple linear analysis, with -optskip). 

Thanks

Florent S. 

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