Linked by Thom Holwerda on Fri 28th Oct 2005 11:17 UTC
Hardware, Embedded Systems Herb Sutter, a software architect from Microsoft, gave a speech yesterday at In-Stat/MDR's Fall Processor Forum. Addressing a crowd mostly consisting of hardware engineers, he talked about how the software world was ill-prepared to make use of the new multicore CPUs coming from Intel and AMD.
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RE[2]: Re: MP readiness
by on Fri 28th Oct 2005 19:56 UTC in reply to "RE: Re: MP readiness"

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Current 64bit versions (x64 and IA64) of NT (2k3,XP) theoretically support 64CPU's, though only Datacenter Edition is licensed for the maximum supported number. 32bit versions support 32 CPU's. This is because CPU enumeration uses a simple 32bit or 64bit mask depending on the native word-length of the system. This is an arbitrary data structure and will likely be changed in the next release (Longhorn Server / NT 6.0).

Currently the largest NT based SMP system available is the HP Integrity Superdome 64p, which (running 2003) supports 64 Itanium 2 1.6Ghz CPU's and 1 TB of RAM. It currently holds the number 3 spot on the TCP-C non-clustered results running Windows Server 2003 Datacenter Edition and SQL 2005 Enterprise Edition 64 bit.

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