TRUMPF as Web-Server

KSR Experience

• installed in 1992/93
• KSR1: 32 Processors, 1 GB, 1 GFlops peak, 0.51 GFlops LinPack
• KSR2: 110 Processors, 3.4 GB, 8.8 GFlops
• Oracle Database wit KSR Query Decomposer

TRUMPF: RUM Pentium Farm

• installed in 1996
• 20 Intel Pentium 133 MHz, in 10 Boards
• total 1 GB, 0.3 GFlops LinPack
• Linux OS
• PVM, MPI, Solidtech DB
• Ethernet with Switch

WWW Server Experience

• 1 Web Server University
  1 GB disk space
• 47 local Web Servers
• Harvest Cache Server
  • 3.5 GB disk space
  • 1 GB transfer per day, 200 000 transfers per day
  • participants of cache.de
    Hierarchical Cache in Germany
  • 30 % local hits (32 % http, 16 % ftp, 11 % gopher)
  • 25 % neighbor hits (without *.de)
• Harvest Search Engine
  for Web services of university
  overloading the server

Distributed Search Engines

• 1 Harvest Broker
• partitioned into search spaces
• 7 Gatherers on 5 Machines
• 22000 indexed web-objects (HTML, PS)
• 400 MB index size
• generated once per week
• 2000 accesses per day
• 1-2 MB hits delivered per day

MOWS

• developed in 1996 by A. Yoshida
• implemented in JAVA
• loadable modules, also remote
• cache and proxy
• CGI and JME

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