Cluster: Difference between revisions
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== Overview == | == Overview == | ||
The cluster is composed by 4 machine types :<br> | The cluster is composed by 4 machine types :<br> | ||
*User Interfaces (UI)<br> | *User Interfaces (UI)<br> | ||
This is the cluster front-end, to use the cluster, you need to log into those machines<br> | This is the cluster front-end, to use the cluster, you need to log into those machines<br> | ||
*Computing Element (CE)<br> | *Computing Element (CE)<br> | ||
This server is the core of the batch system : it run submitted jobs on worker nodes<br> | This server is the core of the batch system : it run submitted jobs on worker nodes<br> | ||
*Worker Nodes (WN)<br> | *Worker Nodes (WN)<br> | ||
This is the power of the cluster : they run jobs and send the status back to the CE<br> | This is the power of the cluster : they run jobs and send the status back to the CE<br> | ||
*Storage Elements<br> | *Storage Elements<br> | ||
This is the memory of the cluster : they contains data, software, ...<br> | This is the memory of the cluster : they contains data, software, ...<br> | ||
<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> | ||
<pre>ssh username@icecube.iihe.ac.be | <pre>ssh username@icecube.iihe.ac.be | ||
</pre> | </pre> | ||
After a successful login, you'll see this message :<br> | After a successful login, you'll see this message :<br> | ||
<pre>========================================== | |||
Welcome on the IIHE ULB-VUB cluster | |||
==========================================< | Cluster status http://ganglia.iihe.ac.be | ||
IT Help support-iihe@ulb.ac.be | |||
========================================== | |||
</pre> | |||
Your default current working directory is your home folder (/user/username), this one is shared amoung the whole cluster<br> | |||
<br> | <br> | ||
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The cluster is decomposed in queues | The cluster is decomposed in queues | ||
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<br> | |||
=== Job submission === | |||
To submit a job, you just have to use the following command : | |||
qsub job.sh | |||
OPTIONS | |||
-q queuename : choose the queue (default: any) | |||
-N "JobName" : name of the job | |||
-m : mail options | |||
-l : resources options | |||
== Useful links == | == Useful links == | ||
Revision as of 10:28, 13 February 2014
IIHE local cluster
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
- Computing Element (CE)
This server is the core of the batch system : it run submitted jobs on worker nodes
- Worker Nodes (WN)
This is the power of the cluster : they run jobs and send the status back to the CE
- Storage Elements
This is the memory of the cluster : they contains data, software, ...
How to connect
To connect to the cluster, you must use your IIHE credentials (same as for wifi)
ssh username@icecube.iihe.ac.be
After a successful login, you'll see this message :
========================================== Welcome on the IIHE ULB-VUB cluster Cluster status http://ganglia.iihe.ac.be IT Help support-iihe@ulb.ac.be ==========================================
Your default current working directory is your home folder (/user/username), this one is shared amoung the whole cluster
Batch System
Queues
The cluster is decomposed in queues
| any | lowmem | standard | highmem | gpu | |
|---|---|---|---|---|---|
| Description | |||||
| CPU's | |||||
| Walltime default/limit | |||||
| Memory default/limit |
Job submission
To submit a job, you just have to use the following command :
qsub job.sh
OPTIONS
-q queuename : choose the queue (default: any)
-N "JobName" : name of the job
-m : mail options
-l : resources options
Useful links
Ganglia Monitoring : Servers status
JobMonArch : Running jobs overview
