New Cosmos Solvers and Dual CPU's

Dec 08, 2004 4 Replies
J

The new solvers for Cosmos/M, CosmosWorks and DesignStar are all meant to utilise miltiple processors when available. I have been using them for a couple of weeks and I don't think they do. I have a dual CPU machine but when NSTAR, ASTAR or STAR are running they will only ever use a maximum of 50% of the processing power of my PC. This is the same as when I use any other Windows program.



Has anyone got more than 50% CPU usage with dual processors running the new solvers?


(My machine is a dual Xeon windows XP Pro running the latest version of DesignStar and Cosmos 2003)



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Z

Only FFEPlus supports 2 processors workstations. Read 'Whats new' on cosmos website.

Uzytkownik "Jim" napisal w wiadomosci news: snipped-for-privacy@c13g2000cwb.googlegroups.com...

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P

And it is really the sparse solver and skyline solver that need it. It is these solvers that get called to do the really dirty slow work when running non-linear or dynamic models.

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P

And it is really the sparse solver and skyline solver that need it. It is these solvers that get called to do the really dirty slow work when running non-linear or dynamic models.

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J

The "what's new" articles all say that the solvers support multiple processors, but I have not seen them using any more than 50% of my 2 processors, which is the same as using 1 processor.

Has anyone got a dual cpu machine and had a look to see if the solvers use them both?

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