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start [2015/10/23 08:45] neyronstart [2016/02/24 21:48] neyron
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 ===== Overview ===== ===== Overview =====
  
-This batch system is based on a database (PostgreSQL (preferred) or MySQL), a script language (Perl) and an optional scalable administrative tool (e.g. [[http://taktuk.gforge.inria.fr|Taktuk]]). It is composed of modules which interact mainly via the database and are executed as independent programs. Therefore, formally, there is no API, the system interaction is completely defined by the database schema. This approach eases the development of specific modules. Indeed, each module (such as schedulers) may be developed in any language having a database access library.+OAR architecture is based on a database (PostgreSQL (preferred) or MySQL), a script language (Perl) and an optional scalable administrative tool (e.g. [[http://taktuk.gforge.inria.fr|Taktuk]]). It is composed of modules which interact mainly via the database and are executed as independent programs. Therefore, formally, there is no API, the system interaction is completely defined by the database schema. This approach eases the development of specific modules. Indeed, each module (such as schedulers) may be developed in any language having a database access library.
  
 ===== Main features ===== ===== Main features =====
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 ===== Why using OAR ===== ===== Why using OAR =====
-==== OAR advantages ==== 
- 
-We present below some points that explain benefits of the new version of OAR. 
  
 === A better resource management === === A better resource management ===
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 OAR 2 features a mechanism to manage resources like software licenses or other non-material resources the same way it manages classical resources. OAR 2 features a mechanism to manage resources like software licenses or other non-material resources the same way it manages classical resources.
  
-==== OAR Uses and Users ==== 
- 
-At the present time, OAR is used in several countries (France, Slovakia, Brazil) by several types of users. These users are not only programmers and computer specialists but also simple scientists, novices at programming. Thus the spread of users type is wide. 
- 
-They are mainly: 
- 
-  * physicists 
-  * biologists that work on medical imaging, radioactivity study... 
-  * weathermen 
-  * chemical engineers 
-  * computer sciences engineers and researchers that work on many subjects as cryptography, data mining, HPC... 
-  * stargazers that work on subjetcs like trajectory computation and data analysis from probes 
  
-===== OAR capabilities =====+===== More technical details =====
  
 Oar is an opensource batch scheduler which provides a simple and flexible exploitation of a cluster. Oar is an opensource batch scheduler which provides a simple and flexible exploitation of a cluster.
  
-It manages resources of clusters as a traditional batch scheduler (as PBS / Torque / LSF / SGE). In other words, it doesn't execute your job on the resources but manages them (reservation, acces granting) in order to allow you to connect these resources and use them.+It manages resources of clusters like other traditional batch scheduler (as PBS / Torque / LSF / SGE). In other words, it doesn't execute your job on the resources but manages them (reservation, acces granting) in order to allow you to connect these resources and use them.
  
 Its design is based on high level tools: Its design is based on high level tools:
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   * scalable exploiting tool Taktuk.   * scalable exploiting tool Taktuk.
  
-It is flexible enough to be suitable for production clusters and research experimentsIt currently manages over than 5000 nodes and has executed more than 5 million jobs.+It is flexible enough to be suitable to manage production HPC clusters as well as other computer infrastructures such as research testbeds like [[http://www.grid5000.fr|Grid'5000]]
  
 OAR advantages: OAR advantages:
start.txt · Last modified: 2018/05/27 11:59 by neyron
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