Newsgroups: comp.parallel
From: rblock@ncsa.uiuc.edu (Robert J. Block)
Subject: Re: Parallel Database Info
Keywords: database
Organization: Nat'l Ctr for Supercomp App (NCSA) @ University of Illinois
Date: Mon, 20 Feb 1995 17:12:38 GMT
Message-ID: <3hqpf6$8vj@vixen.cso.uiuc.edu>

I am posting a summary of responses I received to my post asking  
about parallel databases.  I've broken it down into four sections:
commercial vendors, academic research projects, journal references,
and public domain source code.

(A) Commercial vendors and products
     (thanks to Juhnyoung Lee for much of this info)

Tandem
- URL: http://www.tandem.com/
- NonStop SQL/MP database engine, NonStop TS/MP, TM/MP, ODBC server
- on NonStop Himalaya parallel processing servers
- relational DBMS
- business applications oriented

Oracle
- URL: http://www.oracle.com/
- Oracle7 Release 7.1 in July 1994
- includes Oracle Server manager, a object-based tool
- "Parallel Everything" - parallel query/index/load/backup/recovery
- "Symmetric Replication"
- various symmetric multiprocessor/clustered/massively parallel systems,
  (e.g.) DEC Alpha OSF/1, IBM SP-2, nCUBE, Meiko, Sun Solaris 1, etc.

Amdahl/Legent Xplorer 2000
- uses Legent's LDM/XP family of legacy database migration products
- uses Oracle7 relational database software as its target database

MCC (Microelectronics and Computer Technology Corporation)
Austin, Texas.
- URL: http://www.mcc.com/
Product: Bubba


(B) Academic Research Projects

Univ. of Wisconsin
- Paradise = Parallel Data Information System
- URL: http://www.cs.wisc.edu/paradise/
- a client-server architecture
- extended-relational data model for modeling GIS type applications
- uses SHORE (R 0.1 in Sep. 1994) as the underlying persistent object manager
- in the tradition of EXODUS, and Gamma projects
- ODMG-cognizant
- front-end capable of graphical querying/browsing/updating graphical objects
- Paradise server parallelized to operate on a shared-nothing multiprocessor

Volcano project
- University of Colorado (at Boulder, I believe)
contact unknown (to me at least)

City University, UK
SARC (Systems Architecture Research Centre)
http://web.cs.city.ac.uk/informatics/cs/research/sarc/sarc.html

Parallel DBMS on Transputers
J.Kerridge@dcs.shef.ac.uk


(C) References

DeWitt, D., Gray, J., "Parallel Database Systems: The Future of High
Performance Database Systems", CACM, June 1992, pp. 85-98.

Valduriez, 93 : "Parallel Database Systems - Open Problems and New Issues"
Distributed and Parallel Databases Vol 1, 2, 137-165.

Many, many others.  Online search with subjects "parallel database" or
"parallel query" retrived dozens.  Besides D.Dewitt, the other frequent
name was G.Graefe.


(D) Available source code:

Below is a list of all the public domain source code I've located for
parallel databases on various platforms ranging from shared-nothing to
shared-everything, sorted by descending release date:

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END-OF-LIST


Regards,

Robert J. Block         rblock@ncsa.uiuc.edu
University of Illinois


