T1000 Floating Point Arithemetic

I read somewhere that the T1000 does not scale java apps very well with muliple threads if those threads do a lot of floating point arithmetic. Can some one explain and provide a simple situation in java that would manifest this problem.
I am testing a multithreaded java app on the T1000 and it just does not scale. I need to try and identify why. The java app itself does not do any floating point arithmetic but maybe the library software it uses does.

Short version is that the T1000 only has one FPU to share amongst the 8 cores (and 32 threads). So, while the integer ops act like it's on a 8-32 core box, the fpu apps act like it's a single core (because it is, in that case)...
I've read some docs on the web that suggest the T1000 doesn't scale Java well in the default configuration. They had tweaks that needed to be done to the OS and resulted in massive speed increases. Unfortunately, I can't remember any details and don't have the links available :(

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After a very painful 10g (EE) installation process
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Instance terminated by PMON, pid = 4037==============================================> Any idea on what needs to be done to fix this error.
I remember that i had the very same issue with the
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http://homepage.mac.com/ik_zelf/oracle

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Edit: I forgot the forum hasn't been automated to provide the mandatory link for people who ask this question. We still have to do it by hand.
http://docs.sun.com/source/806-3568/ncg_goldberg.html
Edited by: DrClap on Oct 11, 2007 3:02 PM

T1000 Floating Point Arithemetic

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