HPC
NEC kicks out glueless Nehalem EX beast
Like all remaining Itanium vendors aside from HP, NEC is shifting its focus to Intel's new Nehalem-EX Xeon 7500 processors for its big-iron beasts. The times, they are a-changin'. NEC made a big deal about high-end Itanium-based systems in the prior decade, notching up big benchmark wins with its 16-socket "Azuza" and 32-socket …
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Gluless Nehalem EX larger that 4 sockets is a bad thing
Best – GlueLess (requires direct connections)
Power7 to 32 sockets
Nehalem EX up to 4 sockets
Tukwila up to 5 sockets
Good – GlueFull (interconnect switch/bus)
IBM eX5 up to 16 sockets
HP Nehalem EX with “two XNC’s (cross-network connectors)“ up to 8 sockets (DL980 G7)
HP Superdome with SX3000 up to 32 Sockets
Sun(Oracle) SPARC64 and SPARC-CMT
Worst – Chip hopping
Nehalem EX > 4 sockets without proprietary chipset
Tukwila > 5 sockets without HP SX3000 chipset (BL890c)
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