O.S.C.A.R. Cluster Installation

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O.S.C.A.R. Cluster Installation
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O.S.C.A.R.

• Open Source Cluster Application Resource
• Latest Version 2.2 (March, 2003)
• Cal State LA OSCAR version 2.1 (http//oscar.calst
  atela.edu)
• Download OSCAR software from (http//oscar.sourcef
  orge.net)

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Terminology

• Cluster
• Node
• Head Node, Master Node, Server Node
• Child Node, Slave Node, Client Node
• RPM (RPM Package Manager)
• Public IP, Private IP
• MAC Address

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Network Topology
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Software Requirements

• Linux Operating System
• RedHat 7.1 Experimentally supported
• RedHat 7.2 Fully supported
• RedHat 7.3 Fully supported
• Mandrake 8.2 Fully supported
• Mandrake 9.0 Experimentally supported

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Hardware Requirements

• Head Node
• CPU Intel Pentium or above
• 10/100 Network Card (If your OSCAR server node is
  going to be the router between a public network
  and the cluster nodes, you will need a second
  network card)
• HD 4GB or above
• Child Nodes
• CPU Intel Pentium or above
• HD 2GB or above
• Network Card
• All clients must have the same hardware
  architecture

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Installing the Linux OS

• Install Linux (RedHat 7.3)
• Copy All RPMs from ALL of the OS installation CDs
  (RedHat 7.3 have 3 CDs) to the Hard Drive
  (/tftpboot/rpm)

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Installing O.S.C.A.R.

• Run the install cluster script with an argument
  specifying your servers private network adapter.
• ./install_cluster eth0
• Follow the documented procedures to finish
  O.S.C.A.R. installation

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O.S.C.A.R. Wizard
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The start_over script

• Start the cluster installation process over from
  scratch in order to recover from irresolvable
  errors
• the start_over script located in the scripts
  subdirectory
• Reboot the computer after running the start_over
  script and reinstall from the beginning

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O.S.C.A.R. Clients

• Child Nodes, Slave Nodes, Client Nodes
• Image Name
• Domain Name
• Base Name
• Numbers of Hosts
• Starting Number
• Starting IP

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O.S.C.A.R. Clients

• Build Auto Install Floppy
• Collect MAC Address
• Network Boot Client and begin the installation

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O.S.C.A.R. Wizard
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O.S.C.A.R. Wizard
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Complete the O.S.C.A.R. setup

• Test OSCAR Setup

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Adding / Deleting Clients

• ./install_cluster eth0
• Image Name
• Domain Name
• Base Name
• Numbers of Hosts
• Starting Number
• Starting IP

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Adding O.S.C.A.R. Clients
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Deleting O.S.C.A.R. Clients
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OSCAR Account Setup

• Use Secure Shell Client to connect to OSCAR2
• Start -gt Workspace -gt Communications -gt SSH
  Secure Shell -gt Secure Shell Client
• Click Quick Connect

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OSCAR Account Setup Cont.

• Host Name IP Address of OSCAR2
  130.182.168.199
• User Name studentX
• Password 1234567

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Password Setup

• To change account password, type in unix command
  passwd
• Enter current password 1234567
• Then enter new password
• If acceptable to the system, retype new password

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Running Your First Program

• Type ls at the prompt
• You should see hello.c
• Type pico bhost.def at prompt
• Enter oscar2
• oscar2node1
• oscar2node2
• oscar2node3
• oscar2node4

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Compiling hello.c

• Save your bhost.def file
• Type ls and confirm it is there
• To compile, type mpicc hello.c o hello
• Start LAM environment, type lamboot bhost.def

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Run hello

• To run program, type mpirun C hello
• The output
• CHILD NODE 1
• CHILD NODE 2
• HEAD NODE
• CHILD NODE 4
• CHILD NODE 3
• Output can and should vary.