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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>All,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>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.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>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? </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Incidentally, I plan to buy 6-8 of these boxes.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>There is a T2000 box which supports up to 16 gigs of memory –
but it costs twice as much. :}</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Any advice appreciated!</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks!</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Roger Hall</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Technical Director</span></font></p>
<p class=MsoNormal><u1:place><u1:PlaceName><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>MidSouth</span></font></u1:PlaceName><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><u1:PlaceName>Bioinformatics</span></font></u1:PlaceName><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><u1:PlaceType>Center</span></font></u1:PlaceType></u1:place></p>
<p class=MsoNormal><u1:place><u1:PlaceType><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>University</span></font></u1:PlaceType><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> of </span></font><u1:PlaceName><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Arkansas</span></font></u1:PlaceName></u1:place><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> at </span></font><u1:City><u1:place><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Little Rock</span></font></u1:place></u1:City></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>(501) 569-8074</span></font></p>
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12.0pt'> </span></font></p>
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