From: oyanagi@is.s.u-tokyo.ac.jp (OYANAGI Yoshio)
Newsgroups: comp.sys.super
Subject: Re: New hitachi machine and claims
Date: 8 Apr 92 02:34:11 GMT
Organization: Dept. of Info. Sci., Fac. of Sci, Univ. of Tokyo, Japan.
X-Bytes: 3948

In article <92098.095338ICRJP@ASUACAD.BITNET> ICRJP@ASUACAD.BITNET writes:

 >Date: 7 Apr 92 16:53:37 GMT
 >Organization: Arizona State University
 >Lines: 6

 >    I saw a small blip in the business news about Hitachi annoucing a new
 >machine.  Seems like they claimed a max of 35 gflops.  Anyone have some
 >specifics?
 >					   rpalmer@dz.inre.asu.edu

 Here is a summary from the catalogue.  The price is not mentioned.
 The nominal theoretical peak is 32 GFlops not 35.  The information
 is translated inofficially from Japanese by the present poster.
 No guarantee of the correctness of the translation.  I post it
 for your information only.

 Yoshio Oyanagi
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Hitachi's New Vector Supercomputer

On March 31, 1992, Hitachi Ltd. announced new series of vector 
supercomputers, HITAC S-3800 and HITAC S-3600.  S-3800 can consitute 
a multiprocessor system and the pipeline pitch is estimated to be 2 nano
seconds.  These are the third generation of HITAC supercomputers, 
following HITAC S-810 and S-820.  For the first time in Hitachi super-
computers, they support OSF (unix) operating system.
	(This paragraph is my comment, not from the catalogue.)

S-3800 has six models: 160, 180, 182, 260, 280, 480.  The first digit
shows the number of processors, the second the speed and the last
digit 2 shows that the system has two scalar units in one processor.  
The specification is as follows

Model:		      160     180     182     260     280     480
Max performance (GFlops)4	8	8	8      16      32
#scalar units	  	1	1	2	2	2	4
#vector units	  	1   	1	1	2	2	4
	(Hitachi calls scalar/vector processors instead of units.)

Instruction Processor
  #vector instructions                     99
  buffer memory(kB)   256     256   256x2   256x2   256x2   256x4
  #add+mult pipes	4	8	8	8      16      32
  #div pipes		1	1	1	2	2	4
  #mask pipes		1	1	1	2	2	4
  #load pipes		2	4	4	4	8      16
  #load/store pipes	2	4	4	4	8      16

Main Storage
  MB 		      256     512     512     512    1024    1024
		      512    1024    1024    1024    2048    2048
		     1024
  error check		1 bit correction, 2 bit detection

Extended Storage
  Max(GB)	       16      16      16      32      32      32
  Max transfer GB/s	                 2 or 4
  error check             	  2 bit correction

IO Processor
 		  0-64/128 optical channels. 32-64/128 metal channels.
		  Total channel through put: max 1.1 GB/s
		  BLMPX and BYMPX channels

Cooling					water
Facilities 	  Video output (NTSC and HDTV), HIPPI


S-3600 is an air-cooled supercomputer.  It has four models:

Models		     	      120     140     160     180
Max performance(GFlops)	      0.25    0.5	1	2
#scalar units			1	1	1	1
#vector units			1	1	1	1

Instruction Processor
  #vector instructions			    90
  Buffer storage			   256kB
  #add pipes			1	1	2	4	
  #add/mult pipes		1	1	2	4	
  #div pipes			1	1	1	1	
  #mask pipes			1	1	1	1
  #load pipes			0	1	2	4	
  #load/store pipes		1	1	2	4

Main storage
  MB			      128     256     256     512
			      256     512     512    1024
  error check	          1 bit correction, 2 bit detection

Extended storage
  max GB			6      16      16      16
  max transfer rate                   1 or 2 GB/s
  error check                      2 bit correction

IO Processor          0-64 optical channels and 16-64 metal channels
  total through-put                  max 288 MB/s
  
Cooling                                  air
Facilities                         Video(NTSC), HIPPI


The technologies of S-3800 is
  logic LSI:  25k gates, delay 60 ps and
              12k gates, delay 70 ps.

  vector register:  9k gates + 18 Kbit memory

  memory LSI: 11k gates+256kbits  and
               2k gates+64kbits.

Two kinds of operating systems:
  HI-OSF/1-MJ(Unix)  and VOS3/AS(MVS-like).
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