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pls help!!! its very urgent

Hello guys.. I designed an IMPACT ATTENUATOR .. right now im doing Analysis on it.. It is taking a longgggggggggggg time to get the solution,.. i have been waiting for the solution since past 6 hours /emoticons/default_sad.png' alt=':(' srcset='/emoticons/sad@2x.png 2x' width='20' height='20'> /emoticons/default_sad.png' alt=':(' srcset='/emoticons/sad@2x.png 2x' width='20' height='20'> .. I have to submit the report in a while.. can u pls help me..

how to increase the speed of the solver process?n what exactly is MPI ? can MPI be used to enhance the speed..?? Thank you so much!!

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Radioss

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Altair Forum User

Hi Priyanka,

Please maintain unit consistency in your model.

i am not sure whether the units of time used is secs or milli seconds, but try to work on the /RUN time.

Also, check if there are penetrations in your model. Please check contact interfaces in your model if exsists.

Altair Forum User

Hello,

explicit calculations takes time, 6 hours.... our models can take 6 days (whole carbodies) ....

It depends from a lot of things, we can't discuss that inside a forum.

Some keywords: smallest elements, number and types of contacts, type of materials.... you have to prepare your model for explicit analysis

MPI: Message Passing Interface (support of multi-core or cluster systems)

You need MPI to run the SPMD (Hybrid Massively Parallel Program) version of radioss. It gives you normaly a massive performance boost (depends on the models).

Best regards,

Mario

Altair Forum User

To add to the above, the total simulation time also depends on modelling(penetration, contacts, rigids, etc..), element formulation used, etc..