AnsweredAssumed Answered

Will Cosmos Motion benefit from multi-core hardware

Question asked by Pete Yodis on Jan 8, 2008
Latest reply on Jan 22, 2008 by Basil Gello

Like • Show 0 Likes0
Comment • 10

Will Cosmos Motion benefit from multi-core hardware? Will there be a reduction in solution times with added processing cores, or is the solution process for problems not multi-threaded?

No one else has this question

Outcomes

10 Replies

Basil Gello Jan 9, 2008 5:06 AM
Mark Correct
Correct Answer
Peter, the latest ADAMS issues already support multicore solving, and maybe Motion will not support it because now it uses the very reduced version of ADAMS core.

Regards, Basil
Like • Show 0 Likes0
Actions
- Pete Yodis @ Basil Gello on Jan 18, 2008 1:05 PM
  Mark Correct
  Correct Answer
  
  In 2008, does CosmosMotion take advantage of multiple cores during solutions of simulations? Anyone?
  
  Pete
  Like • Show 0 Likes0
  Actions
  - Basil Gello @ Pete Yodis on Jan 18, 2008 6:40 PM
    Mark Correct
    Correct Answer
    Peter,
    
    As far I have tested this damned new motion (which is absolutely inaccurate in results and function-reduced unless it is a full version, comparing to 2007, IMHO), it loads only one processor of 4 that currently I have installed on my PC (Pentium Core2Quad QX6600).
    
    Regards, Basil.
    Like • Show 0 Likes0
    Actions
    - Pete Yodis @ Basil Gello on Jan 18, 2008 6:43 PM
      Mark Correct
      Correct Answer
      Thanks Basil,
      
      Do you recall if it used all cores in 2007?
      Like • Show 0 Likes0
      Actions
      - Basil Gello @ Pete Yodis on Jan 19, 2008 2:01 PM
        Mark Correct
        Correct Answer
        Peter,
        
        The same situation is with 2007. The Motion 2007 uses MSC.ADAMS 2005.2 core which does not support multicore processing.
        
        Regards,Basil
        Like • Show 0 Likes0
        Actions
Mans Collner Jan 19, 2008 4:33 PM
Mark Correct
Correct Answer
But it looks like MCS.ADAMS 2005.2 is supporting 8 cores:
http://www.mscsoftware.com/pro.../new.cfm?PI=413

Do we somehow get to that interface in SW?
Like • Show 0 Likes0
Actions
- Ian Hogg @ Mans Collner on Jan 20, 2008 1:23 PM
  Mark Correct
  Correct Answer
  It's been a little while since I looked into the multi processor support, but I believe it is a switch setting on the solver. It may just be that they have not implemented the switch in COSMOSMotion when intiating the analysis (perhaps a good enhancement request).
  
  I don't recall the performance improvement you get or specifically which areas the gains are in. For example, the biggest time consumer with the solver for most users is with 3-D contact. It seems a perfect candidate for parallel processing since you should be able to compute interferences in parallel.
  
  Cheers,
  
  Ian Hogg
  Like • Show 0 Likes0
  Actions
  - Basil Gello @ Ian Hogg on Jan 20, 2008 7:04 PM
    Mark Correct
    Correct Answer
    As far as I know the multicore support in ADAMS was improved only in 2007.1 release, before that time it was very buggy and ineffective and inadjusted.
    
    Regards,Basil.
    Like • Show 0 Likes0
    Actions
  - Pete Yodis @ Ian Hogg on Jan 21, 2008 1:34 PM
    Mark Correct
    Correct Answer
    
    For example, the biggest time consumer with the solver for most users is with 3-D contact. It seems a perfect candidate for parallel processing since you should be able to compute interferences in parallel.
    
    Yes, I have one motion simulation that took well over a half hour to solve. It inlcuded 3D contact between 8 balls and their respective detents on a combination of 3 separate parts. I noticed the solve time jumped dramatically when I setup the 3D contacts on these items. My machine at work is pretty weak, but I will be upgrading soon and was interested in knowing how much the solution prcess will take advantage of multi-core hardware. It appears that 2008 anmd 2007 doesn't take advantage. I will submit an enhacement request as mentioned and I encourage everyone else to do the same.
    Like • Show 0 Likes0
    Actions
    - Basil Gello @ Pete Yodis on Jan 22, 2008 8:47 AM
      Mark Correct
      Correct Answer
      Peter,
      
      if you are intending to send a request, can you also pick a complaint about MSC.ADAMS Export menu item that does not work in Motion? I will also send the one, but hope together we will make them to respond faster
      
      Regards,Basil.
      Like • Show 0 Likes0
      Actions

Will Cosmos Motion benefit from multi-core hardware

Outcomes

Related Content

Recommended Content