[gmx-users] Sun T1000's, multi-core, hyper-threaded

[Roger Hall]

All,

 

I am planning to buy a set of boxes for an MPI cluster very soon, and I
really like the idea of Sun's T1000's, which have 8-core chips, each of
which has 4 hyper-threads, for a total of 32 simultaneous threads per box. I
have read the many recommendations for dual-core Opterons, but these Sun
boxes are pretty new, and I'm not sure if anyone has had the chance to try
them out yet. I didn't see any previous emails about them specifically. I am
hoping that someone might be able to interpolate possible performance from
an Opteron to the Sun T1 chip.

 

The crux of my question is this: with 8 gigs of memory to support 32
threads, how well will GROMACS run? Will I be limited to an atom-space that
fits in (8/32=) 256 megs of memory? 

 

Incidentally, I plan to buy 6-8 of these boxes.

 

There is a T2000 box which supports up to 16 gigs of memory - but it costs
twice as much. :}

 

Any advice appreciated!

 

Thanks!

 

Roger Hall

Technical Director

MidSouth Bioinformatics Center

University of Arkansas at Little Rock

(501) 569-8074

 

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