Path: utzoo!mnetor!uunet!husc6!bloom-beacon!mit-eddie!ll-xn!ames!amdcad!amdahl!mat
From: mat@amdahl.uts.amdahl.com (Mike Taylor)
Newsgroups: comp.arch
Subject: CISC strikes back.
Message-ID: <30872@amdahl.uts.amdahl.com>
Date: 5 May 88 18:11:26 GMT
Organization: Amdahl Corporation, Sunnyvale CA
Lines: 36
Keywords: System/370 CISC 100MHz


Just a short posting from the mainframe world, since we have announced
a new processor family for delivery starting in June, the Amdahl 5990.
Since this machine supports Amdahl UTS, it is a Unix machine.  We think
this is probably the fastest scalar machine (both integer and floating
point) around, so I've taken the liberty of posting a few details.

Model                      5990-700        5990-1400
Number of CPUs                  2               4
Main storage (MB)          64-256         128-512
Expanded storage(MB)     128-1024        128-2048
I/O Channels                32-64          64-128

The 5990 CPU operates at a cycle time of 10ns. It uses 180ps. 3K and
10K gate ECL logic.  There are also  combined logic and RAM chips
that have 1200 280 ps. logic gates and 16 kb RAM with 2.8 ns. access time.
Main storage is 55ns. 256 kb SRAM. Each CPU occupies a single board,
including 64KB instruction and operand caches. A six-stage pipeline
is capable of a peak rate of one instruction completion per cycle.

Each channel is capable of managing and queuing I/O for up to 256 devices
and supports data transfer rates up to 4.5 MB/sec.

RAS features include storage patrol, internal redundancy, history logic,
automatic scan out analysis (ASOA), failure analysis system (FAS) and
AMDAC remote maintenance.

The Multiple Domain Facility allows system resources to be allocated to
up to 4 (5990-700) or 7 (5990-1400) domains, which may independently
support different SCPs (UTS, MVS, VM) and different architectural features
(S/370, S/370-XA, ESA/370).  Each domain can configure up to 4080
I/O devices.
-- 
Mike Taylor                        ...!{ihnp4,hplabs,amdcad,sun}!amdahl!mat

[ This may not reflect my opinion, let alone anyone else's.  ]