Jump to content
  • Announcements

    • Rahul Ponginan

      Please click here for a short but important announcement   03/26/17

      Dear Users Our Commercial and Academic users around the world can use these same forums here as before i.e. the Altair Support Forum , Commercial users from India with solver queries can go to the Solver Forum for India Commercial Users , Academic Users from India and AOC India Participants are requested to go to the Forum for India Academic Users and AOC India Participants , We will be tending to all queries in all the forums promptly as before, thank you for your understanding. 
  • 0
harmeek01

Optistruct Solution Time for direct frf

Question

Hi Guys....

Is there any method or thumb rule to calculate the calculation time of a direct frf solution.

I have a small system with 64GB RAM but large number of nodes to calculate, can anyone suggest any thumb rule over number of nodes to calculate, number of frequencies to output and system specifications.

 

Also, is there any thumb rule that the performance of an frf is maximum with 4 cores?? I read it somewhere....

 

Thanks in advance

Share this post


Link to post
Share on other sites

1 answer to this question

Recommended Posts

  • 0

Hi Harmeek,

 

I don't see any thumb rule for calculating the modes. I believe it all depends on how dense your matrices are in decoupling the matrices and solving the equation directly.

 

OptiStruct do not have a limitation on the performance for FRF step to be maximum at 4 cores. In fact, you can use Domain Decomposition Method (DDM) for FRF step and run the job with multiple cores to get better performance.

 

Please give a try with DDM

 

Thanks

Vikas 

Rahul R likes this

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×