Dr. McCalpin,
Do you have your stream benchmark results for the IBM 390 "thin" node,
as well as the IBM 590 "wide" node option for their SP2 system? Since
the 590 path to memory is 256 bits wide, and that of the 390 is 64 bits,
I assume the 390 has 1/4 of the sustainable CPU<->Dcache<->DRAM band-
pass that the 590 has, since both are clocked at 66MHz, but I'd love to
see an actual measurement...
---Gary
Randolph Gary Smith Internet: gary@chpc.utexas.edu
Systems Group Phonenet: (512) 471-2411
Center for High Performance Computing Snailnet: 10100 Burnet Road
The University of Texas System Austin, Texas 78758-4497
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