Cluster: Difference between revisions

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IIHE local cluster
IIHE local cluster
<center><span style="font-size: 300%;">'''Deprecated''', see [http://t2bwiki.iihe.ac.be T2B wiki]</span></center>


== Overview ==
== Overview ==
Line 28: Line 30:


Servers&nbsp;: datang (/data, /software), lxserv (/user), x4500 (/ice3)
Servers&nbsp;: datang (/data, /software), lxserv (/user), x4500 (/ice3)
[[Image:Batch.png|center]]


== How to connect<br> ==
== How to connect<br> ==


To connect to the cluster, you must use your IIHE credentials (same as for wifi)<br>
To connect to the cluster, you must use your IIHE credentials (same as for wifi)<br>
[[Image:Rrdns.png|center]]
<pre>ssh username@icecube.iihe.ac.be
<pre>ssh username@icecube.iihe.ac.be
</pre>  
</pre>  
TIP&nbsp;: ''icecube.iihe.ac.be'' points automatically to available UI's (ui01, ui02, ...)<br>
TIP&nbsp;: ''icecube.iihe.ac.be'' &amp; ''lxpub.iihe.ac.be'' points automatically to available UI's (ui01, ui02, ...)<br>


<br>
<br>
Line 42: Line 52:
Welcome on the IIHE ULB-VUB cluster
Welcome on the IIHE ULB-VUB cluster


Cluster status http://ganglia.iihe.ac.be
Cluster status http://ganglia.iihe.ac.be
IT Help support-iihe@ulb.ac.be
Documentation  http://wiki.iihe.ac.be/index.php/Cluster
IT Help         support-iihe@ulb.ac.be
==========================================
==========================================


Line 56: Line 67:
Here is a description of most useful directories<br>
Here is a description of most useful directories<br>


=== /user/username<br> ===
=== /user/{username}<br> ===


Your home folder<br>
Your home folder<br>
Line 64: Line 75:
Main data repository<br>
Main data repository<br>


=== /software<br> ===
==== /data/user/{username} ====


The custom software area<br>
Users data folder


==== /software/src<br> ====
==== /data/ICxx<br> ====


Sources of software to install<br>
IceCube datasets


==== /software/icecube<br> ====
=== /software<br> ===


Icecube specific tools<br>
The local software area<br>


===== /software/icecube/i3_ports<br> =====
=== /ice3<br> ===


This folder contains the I3 ports used by icecube (meta-)projects<br>
This folder is the old software area. We strongly recommend you to build your tools in the /software directory


In order to use it, you must define the environment variable $I3_PORTS<br>
=== /cvmfs<br> ===
<pre>export I3_PORTS="/software/icecube/ports"
</pre>
This variable is set only for the current session and will be unset after logout, to avoid typing this each time,&nbsp; you can add this command to your .bashrc


'''''List installed ports'''''<br>
Centralised CVMFS software repository for IceCube and CERN (see [[IceCube_Software_Cluster#CVMFS|CMFS]])
<pre>$I3_PORTS/bin/port installed
</pre>
'''''List available ports'''''<br>
<pre>$I3_PORTS/bin/port list
</pre>
'''''Install a port'''''<br>
<pre>$I3_PORTS/bin/port install PORT_NAME
</pre>
<br>
 
===== /software/icecube/offline-software<br> =====
 
This folder contains the '''offline-software''' meta-project
 
To use it, just run the following command (note the point at the beginning of the line)
 
. /software/icecube/offline-sofware/[VERSION]/env-shell.sh
 
Available versions&nbsp;:
 
*V14-02-00<br>
 
===== /software/icecube/icerec<br> =====
 
This folder contains the '''icerec''' meta-project<br>
 
To use it, just run the following command (note the point at the beginning of the line)<br>
<pre>. /software/icecube/icerec/[VERSION]/env-shell.sh
</pre>
Available versions&nbsp;:<br>
 
*V04-05-00
*V04-05-00-jkunnen<br>
 
===== /software/icecube/simulation<br> =====
 
This folder contains the '''simulation''' meta-project
 
To use it, just run the following command (note the point at the beginning of the line)
<pre>. /software/icecube/simulation/[VERSION]/env-shell.sh
</pre>
Available versions&nbsp;:
 
*V03-03-04
*V04-00-08
*V04-00-09<br>
 
=== /ice3<br> ===


== Batch System ==
== Batch System ==
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The cluster is decomposed in queues
The cluster is decomposed in queues


{| width="791" height="156" cellspacing="1" cellpadding="1" border="1"
{| width="1064" cellspacing="1" cellpadding="5" border="1" align="center"
|-
|-
! scope="col" | <br>
! scope="col" | <br>
Line 148: Line 108:
! scope="col" | standard
! scope="col" | standard
! scope="col" | highmem
! scope="col" | highmem
! scope="col" | express
! scope="col" | gpu
! scope="col" | gpu
|-
|-
! scope="row" | Description
! scope="row" | Description
| default queue, all available nodes<br>
| nowrap="nowrap" align="center" | default queue, all available nodes (except GPUs & express)<br>
| <br>
| nowrap="nowrap" align="center" | 2 Gb RAM<br>
| <br>
| nowrap="nowrap" align="center" | 3 Gb RAM<br>
| <br>
| nowrap="nowrap" align="center" | 4 Gb RAM<br>
| GPU's dedicated queue<br>
| nowrap="nowrap" align="center" | Limited walltime<br>
| nowrap="nowrap" align="center" | GPU's dedicated queue<br>
|-
|-
! scope="row" | CPU's
! scope="row" | CPU's (Jobs)
| 542<br>
| nowrap="nowrap" align="center" | 494<br>
| 88<br>
| nowrap="nowrap" align="center" | 88<br>
| 384<br>
| nowrap="nowrap" align="center" | 384<br>
| 16<br>
| nowrap="nowrap" align="center" | 8<br>
| 54<br>
| nowrap="nowrap" align="center" | 24<br>
| nowrap="nowrap" align="center" | 14<br>
|-
|-
! scope="row" | Walltime default/limit
! scope="row" | Walltime default/limit
| colspan="5" | 144 hours (6 days) / 240 hours (10 days)
| nowrap="nowrap" align="center" colspan="4" | 144 hours (6 days) / 240 hours (10 days)
| nowrap="nowrap" align="center" | 15 hours / 15 hours<br>
| nowrap="nowrap" align="center" | 50 hours / 50 hours<br>
|-
|-
! scope="row" | Memory default/limit
! scope="row" | Memory default/limit
| <br>
| nowrap="nowrap" align="center" | 2 Gb<br>
| <br>
| nowrap="nowrap" align="center" | 2 Gb<br>
| <br>
| nowrap="nowrap" align="center" | 3 Gb<br>
| <br>
| nowrap="nowrap" align="center" | 4 Gb<br>
| <br>
| nowrap="nowrap" align="center" | 3 Gb<br>
| nowrap="nowrap" align="center" | 6 Gb<br>
|}
|}


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''OPTIONS''
''OPTIONS''


-q queueName&nbsp;: choose the queue (default: any)
*-q queueName&nbsp;: choose the queue (default: any)


-N jobName&nbsp;: name of the job
*-N jobName&nbsp;: name of the job


-I&nbsp;: pass in interactive mode
*-I&nbsp;: (capital i) pass in interactive mode


-m&nbsp;: mail options
*-m mailaddress&nbsp;: set mail address (use in conjonction with -m) : MUST be @ulb.ac.be or @vub.ac.be


-l&nbsp;: resources options
*-m [a|b|e]&nbsp;: send mail on job status change (a = aborted , b = begin, e = end)
 
*-l&nbsp;: resources options


<br>
<br>
Line 198: Line 166:
=== Job management ===
=== Job management ===


To see all jobs (running / queued), you can use the '''qstat''' command or go to the [http://ganglia.iihe.ac.be/addons/job_monarch/?c=iihe JobMonArch] page
To see all jobs (running / queued), you can use the '''qstat''' command or go to the [http://ganglia.iihe.ac.be/addons/job_monarch/?c=nodes JobMonArch] page
<pre>qstat
<pre>qstat
</pre>  
</pre>  
''OPTIONS''
''OPTIONS''


-u username&nbsp;: list only jobs submitted by username
* -u username&nbsp;: list only jobs submitted by username
 
* -n&nbsp;: show nodes where jobs are running
 
* -q&nbsp;: show the job repartition on queues


-n&nbsp;: show nodes where jobs are running
<br>


-q&nbsp;: show the job repartition on queues
== Backup ==


/user, /data and /ice3 use snapshot backup system.
<br>
<br>
They're located in :
*/backup_user
**daily : 5
**weekly : 4
**monthly : 3
*/backup_data
**daily : 6
*/backup_ice3
**daily : 5
**weekly : 4
**monthly : 3
Each directory contains a snapshot of a specific period.
To restore, just copy files from those directory to the location you want.


== Useful links ==
== Useful links ==
Line 215: Line 205:
[http://ganglia.iihe.ac.be Ganglia Monitoring]&nbsp;: Servers status
[http://ganglia.iihe.ac.be Ganglia Monitoring]&nbsp;: Servers status


[http://ganglia.iihe.ac.be/addons/job_monarch/?c=iihe JobMonArch]&nbsp;: Jobs overview
[http://ganglia.iihe.ac.be/addons/job_monarch/?c=nodes JobMonArch]&nbsp;: Jobs overview

Latest revision as of 15:03, 16 September 2016

IIHE local cluster

Deprecated, see T2B wiki

Overview

The cluster is composed by 4 machine types :

  • User Interfaces (UI)

This is the cluster front-end, to use the cluster, you need to log into those machines

Servers : ui01, ui02

  • Computing Element (CE)

This server is the core of the batch system : it run submitted jobs on worker nodes

Servers : ce

  • Worker Nodes (WN)

This is the power of the cluster : they run jobs and send the status back to the CE

Servers : slave*

  • Storage Elements

This is the memory of the cluster : they contains data, software, ...

Servers : datang (/data, /software), lxserv (/user), x4500 (/ice3)



How to connect

To connect to the cluster, you must use your IIHE credentials (same as for wifi)

ssh username@icecube.iihe.ac.be

TIP : icecube.iihe.ac.be & lxpub.iihe.ac.be points automatically to available UI's (ui01, ui02, ...)


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

==========================================
Welcome on the IIHE ULB-VUB cluster

Cluster status  http://ganglia.iihe.ac.be
Documentation   http://wiki.iihe.ac.be/index.php/Cluster
IT Help         support-iihe@ulb.ac.be
==========================================

username@uiXX:~$

Your default current working directory is your home folder.


Directory Structure

Here is a description of most useful directories

/user/{username}

Your home folder

/data

Main data repository

/data/user/{username}

Users data folder

/data/ICxx

IceCube datasets

/software

The local software area

/ice3

This folder is the old software area. We strongly recommend you to build your tools in the /software directory

/cvmfs

Centralised CVMFS software repository for IceCube and CERN (see CMFS)

Batch System

Queues

The cluster is decomposed in queues


any lowmem standard highmem express gpu
Description default queue, all available nodes (except GPUs & express)
 2 Gb RAM
 3 Gb RAM
 4 Gb RAM
 Limited walltime
 GPU's dedicated queue
CPU's (Jobs) 494
 88
 384
 8
 24
 14
Walltime default/limit 144 hours (6 days) / 240 hours (10 days) 15 hours / 15 hours
 50 hours / 50 hours
Memory default/limit 2 Gb
 2 Gb
 3 Gb
 4 Gb
 3 Gb
 6 Gb


Job submission

To submit a job, you just have to use the qsub command : 

qsub myjob.sh

OPTIONS

  • -q queueName : choose the queue (default: any)
  • -N jobName : name of the job
  • -I : (capital i) pass in interactive mode
  • -m mailaddress : set mail address (use in conjonction with -m) : MUST be @ulb.ac.be or @vub.ac.be
  • -m [a|b|e] : send mail on job status change (a = aborted , b = begin, e = end)
  • -l : resources options


Job management

To see all jobs (running / queued), you can use the qstat command or go to the JobMonArch page 

qstat

OPTIONS

  • -u username : list only jobs submitted by username
  • -n : show nodes where jobs are running
  • -q : show the job repartition on queues


Backup

/user, /data and /ice3 use snapshot backup system.
They're located in :

  • /backup_user
    • daily : 5
    • weekly : 4
    • monthly : 3
  • /backup_data
    • daily : 6
  • /backup_ice3
    • daily : 5
    • weekly : 4
    • monthly : 3

Each directory contains a snapshot of a specific period. To restore, just copy files from those directory to the location you want.

Useful links

Ganglia Monitoring : Servers status

JobMonArch : Jobs overview

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