Roger Hall wrote:

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,

AFAIK the UltraSPARC T1 CPU was designed with something like webservers or databases in mind, i.e. the floating point performance is probably really bad (IIRC there is only one FP unit for all eight cores). I don't have numbers at hand but I guess dual core Opterons are still the CPUs of choice for Gromacs and similar software.

Regards

Christian

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