On Tue, 25 Sep 2001 16:30:40 -0500 (Central Daylight Time), [log in to unmask] wrote: >Our new friend, Martin "the demise of MPE" Garvey may be at it again. > >The following is a piece in Information Week's daily newsletter. Following >the first link, "Lowdown On The High End" (which took two people to write, >Garvey and another), the article there states (or misstates) that superdome >"features up to 64 CPUs". Um, well, according to ><http://www.hp.com/products1/unixservers/highend/superdome/specifications.ht >ml#capacity>, its capacity is "64-way 750MHz, 4-way superscalar PA-8700 >CPUs". My math squares with my memory, that superdome supports 256 CPUs, >more than 15K's 106 processors. The PA-8700 is a 4-way superscalar CPU. There are maximum of 64 such CPU's in a single Superdome node. A single Superdome cabinet can contain 32 CPU's and 128GB of memory. Adding a second cabinet takes you up to 64 CPU's and 256GB memory. 4-way superscalar, means, I think, that there are 4 "stages" in the execution pipline of the CPU, so up to 4 instructions can be loaded in the execution pipeline at one time, each one at a different stage of execution. Note that the 106-CPU config on the Sun is only possible by sacrificing some I/O slots. I don't know enough about superdome to know >if "up to 128GB memory per cabinet" (hp) compares to the "256 Gbytes of >memory" in the linked article, but perhaps someone else here does know. If >superdome support eight of these cabinets, that's 1TB of memory. So, is the >Sun Fire 15K "bigger" than superdome? > >And I wonder about other comparisons? > >** Sun's New Unix Server Is Biggest Yet > >Sun Microsystems' new Solaris Unix-based server, the Sun Fire >15K, is the biggest Unix server yet. It will scale to as many as >106 processors in a single frame, has a terabyte of memory, and >can attach up to five petabytes of exterior storage. And the 15K >is designed to be easier to maintain and manage than previous >Unix servers. Most important for Sun, however, is that the 15K >will become another lure as Sun tries to win over more IBM >customers. > >The 15K reduces the latency usually associated with big Unix >systems with processors that share the same memory and >input/output. Sun has also enhanced Domains, which was introduced >in the 15K's predecessor, the E 10000. Domains allowed users to >run multiple workloads, but users had to program them ahead of >time and stick with them during operations. The 15K's Dynamic >System Domains lets users rearrange the partitions on the fly. In >addition, features in the Solaris operating system let users >modify software without taking the system down. The 15K will be >available in November priced from $1.4 million for 16 processors >to $10 million for 106 processors. - Martin J. Garvey > >Read on at >Lowdown On The High End >http://update.informationweek.com/cgi-bin4/flo?y=eEd60BdJZN0V20Pn20AE > >IBM Offers Peek At Next-Generation Unix Server >http://update.informationweek.com/cgi-bin4/flo?y=eEd60BdJZN0V20RT10An > >Copyright 2001 CMP Media. A service of InformationWeek. > >-------- >Greg Stigers >http://www.cgiusa.com > >* To join/leave the list, search archives, change list settings, * >* etc., please visit http://raven.utc.edu/archives/hp3000-l.html * > * To join/leave the list, search archives, change list settings, * * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *