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Re: [Gems-users] MOESI broadcast protocol

Date: Fri, 17 Mar 2006 10:17:34 -0600
From: "Mike Marty" <mikem@xxxxxxxxxxx>
Subject: Re: [Gems-users] MOESI broadcast protocol
Title: Message
The wait states are an unneeded optimization to allow a processor to retire 1 or more instructions before losing permission to the block.
 
--Mike
 
-----Original Message-----
From: gems-users-bounces@xxxxxxxxxxx [mailto:gems-users-bounces@xxxxxxxxxxx] On Behalf Of arrvindh shriraman
Sent: Friday, March 17, 2006 9:59 AM
To: gems-users@xxxxxxxxxxx
Subject: [Gems-users] MOESI broadcast protocol

I followed the link in milo's dissertation for a MOESI protocol.

http://www.cs.wisc.edu/multifacet/theses/milo_martin_phd/snooping

I dont quite understand the need for acks and timeouts and the states M_w
and MM_w which you characterize as wait states. I do comprehend that M is
analogous to E.


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