Cluster Overview: Difference between revisions

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(Created page with "== Overview == The cluster is composed 3 groups of machines : <br> * The '''User Interfaces (UI)''' ::This is the cluster front-end, to use the cluster, you need to log into ...")
 
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::::Servers : beharXXX
::::Servers : beharXXX
:* The '''User Storage''': it provides the home of the UIs. It is a highly efficient & redundant storage node of ~70 TB capacity.
:* The '''User Storage''': it provides the home of the UIs. It is a highly efficient & redundant storage node of ~70 TB capacity.
<br>
== How to Connect ==
To connect to the cluster, you need to have sent us your public ssh key.
In a terminal, type the following:
ssh -X -o ServerAliveInterval=100 username@m0.iihe.ac.be
:''Tip: the ''-o ServerAliveInterval=100'' option is used to keep your session alive for a long period of time ! You should not be disconnected during a whole day of work.''
After a successful login, you'll see this message :
<pre>
          @@@@@@@@    @@@@            @@@@@    @@@@@@@
            @@      @    @            @@  @    @@
            @@            @    @@@@    @@@@@    @@@@
            @@        @@              @@    @  @@@@
            @@      @                @@    @  @@
            @@      @@@@@@            @@@@@@    @@@@@@@
                              @ IIHE 
  Welcome to the t2b cluster ! You are on the following UI: m2
  You can find more info on our wiki page: http://t2bwiki.iihe.ac.be
            To contact us: grid_admin@listserv.vub.ac.be
  Please remember this machine will allow you only 600s (10 minutes)
      of cpu time per processes.
___________________________________________________________________________
              Your Quota on /user+/localgrid: 43% used (282G left)
  There are 2 users here  |  Load: 0.16 /8 CPUs (2%)  |  Mem: 3% used
</pre>

Revision as of 10:56, 21 January 2016

Overview

The cluster is composed 3 groups of machines :

  • The User Interfaces (UI)
This is the cluster front-end, to use the cluster, you need to log into those machines
Servers : [ m0 , m1 , m2 , m3 ] , [ m5 , m6 , m7 , m8 , m9 ]


  • The Computing Machines :
    • The Computing Element (CE): This server is the brain of the batch system : it manages all the submitted jobs, and send them to the worker nodes.
Servers : cream02
  • The Worker Nodes (WN): This is the power of the cluster : they run multiple jobs in parallel and send the results & status back to the CE.
Servers : nodeXX-YY


  • The Storage Machines
    • The Storage Element: it is the brain of the cluster storage. Grid accessible, it knows where all the files are, and manages all the storage nodes.
Server : maite
  • The Storage Nodes: This is the memory of the cluster : they contain big data files. In total, they provide ~2300 TB of grid-accessible storage.
Servers : beharXXX
  • The User Storage: it provides the home of the UIs. It is a highly efficient & redundant storage node of ~70 TB capacity.


How to Connect

To connect to the cluster, you need to have sent us your public ssh key. In a terminal, type the following:

ssh -X -o ServerAliveInterval=100 username@m0.iihe.ac.be
Tip: the -o ServerAliveInterval=100 option is used to keep your session alive for a long period of time ! You should not be disconnected during a whole day of work.

After a successful login, you'll see this message :

          @@@@@@@@     @@@@             @@@@@     @@@@@@@
             @@       @    @            @@   @    @@
             @@            @    @@@@    @@@@@     @@@@
             @@         @@              @@    @   @@@@
             @@       @                 @@    @   @@
             @@       @@@@@@            @@@@@@    @@@@@@@
                               @ IIHE   

   Welcome to the t2b cluster ! You are on the following UI: m2

   You can find more info on our wiki page: http://t2bwiki.iihe.ac.be
            To contact us: grid_admin@listserv.vub.ac.be

   Please remember this machine will allow you only 600s (10 minutes)
      of cpu time per processes.
 ___________________________________________________________________________
              Your Quota on /user+/localgrid: 43% used (282G left) 
  There are 2 users here   |   Load: 0.16 /8 CPUs (2%)  |   Mem: 3% used