OpenSees Parallel Interpreters

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dkkim
Posts: 9
Joined: Fri Sep 22, 2006 9:29 pm
Location: Seoul National University

OpenSees Parallel Interpreters

Post by dkkim »

Hellow..

I’m a graduate student in South Korea.
I saw a PDF file about OpenSees parallel interpreters.

http://it.nees.org/documentation/pdf/TN ... enSees.pdf

It says that there are two interpreters.
Because my simulation is a very large model.
( number of element : 110,000)
I had thought that the Single OpenSees Parallel Interpreter is compatible.

But there is a problem. because it is too large to make a matrix.
The required memory exceeds a capacity of computer.
So, It is stopped before analyze() syntax.

And I knew multiple parallel opensees interpreter recently.
I think that the Domain Decomposition of multiple interpreter is another distribution.

Does it composes each matrix to each processor ?

If it’s right, I think that the multiple parallel interpreter has more capacity than single interpreter.


By the way,I saw a syntax “doModel {$pid $np}” in the PDF.

I think that the syntax is the difference and important.
But I could not find a define of "doModel" in OpenSees interpreters.

How could I use the syntax..?
Would you give me an example that is run in parallel processing?


How could I use a maximum capacity of parallel machine?
What interpreter has more capacity to analysis to a large model?

Your reply will be helpful to me….
Thank you..
fmk
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Posts: 5884
Joined: Fri Jun 11, 2004 2:33 pm
Location: UC Berkeley
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Post by fmk »

there will be a new web page dedicated to
parallel processing and OpenSees. It will be
available this Friday 18 April, 2008. the information you seek might be found there. if not, post what questions you still have next week. in the meantime i am focusing on getting stuff ready for the workshop.
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