doc/html/slurm.shtml - SchedMD/slurm - Git at Google

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 <h1>SLURM: A Highly Scalable Resource Manager</h1>

 <p>SLURM is an open-source resource manager designed for Linux clusters of
 all sizes.
 It provides three key functions.
 First it allocates exclusive and/or non-exclusive access to resources
 (computer nodes) to users for some duration of time so they can perform work.
 Second, it provides a framework for starting, executing, and monitoring work
 (typically a parallel job) on a set of allocated nodes.
 Finally, it arbitrates contention for resources by managing a queue of
 pending work. </p>

 <p>SLURM's design is very modular with dozens of optional plugins.
 In its simplest configuration, it can be installed and configured in a
 couple of minutes (see <a href="http://www.linux-mag.com/id/7239/1/">
 Caos NSA and Perceus: All-in-one Cluster Software Stack</a>
 by Jeffrey B. Layton).
 More complex configurations rely upon a
 <a href="http://www.mysql.com/">MySQL</a> database for archiving
 <a href="accounting.html">accounting</a> records, managing
 <a href="resource_limits.html">resource limits</a> by user or bank account,
 or supporting sophisticated
 <a href="priority_multifactor.html">job prioritization</a> algorithms.
 SLURM also provides an Applications Programming Interface (API) for
 integration with external schedulers such as
 <a href="http://www.clusterresources.com/pages/products/maui-cluster-scheduler.php">
 The Maui Scheduler</a> or
 <a href="http://www.clusterresources.com/pages/products/moab-cluster-suite.php">
 Moab Cluster Suite</a>.</p>

 <p>While other resource managers do exist, SLURM is unique in several
 respects:
 <ul>
 <li>Its source code is freely available under the
 <a href="http://www.gnu.org/licenses/gpl.html">GNU General Public License</a>.</li>
 <li>It is designed to operate in a heterogeneous cluster with up to 65,536 nodes
 and hundreds of thousands of processors.</li>
 <li>It is portable; written in C with a GNU autoconf configuration engine.
 While initially written for Linux, other UNIX-like operating systems should
 be easy porting targets.</li>
 <li>SLURM is highly tolerant of system failures, including failure of the node
 executing its control functions.</li>
 <li>A plugin mechanism exists to support various interconnects, authentication
 mechanisms, schedulers, etc. These plugins are documented and  simple enough for the motivated end user to understand the source and add functionality.</li>
 </ul></p>

 <p>SLURM provides resource management on about 1000 computers worldwide,
 including many of the most powerful computers in the world:
 <ul>
 <li><a href="https://asc.llnl.gov/computing_resources/bluegenel/">BlueGene/L</a>
 at LLNL with 106,496 dual-core processors</li>
 <li><a href="http://c-r-labs.com/">EKA</a> at Computational Research Laboratories,
 India with 14,240 Xeon processors and Infiniband interconnect</li>
 <li><a href="https://asc.llnl.gov/computing_resources/purple/">ASC Purple</a>
 an IBM SP/AIX cluster at LLNL with 12,208 Power5 processors and a Federation switch</li>
 <li><a href="http://www.bsc.es/plantillaA.php?cat_id=5">MareNostrum</a>
 a Linux cluster at Barcelona Supercomputer Center
 with 10,240 PowerPC processors and a Myrinet switch</li>
 <li><a href="http://en.wikipedia.org/wiki/Anton_(computer)">Anton</a>
 a massively parallel supercomputer designed and built by
 <a href="http://www.deshawresearch.com/">D. E. Shaw Research</a>
 for molecular dynamics simulation using 512 custom-designed ASICs
 and a three-dimensional torus interconnect </li>
 <li><a href="http://news.xinhuanet.com/english/2009-10/29/content_12356478.htm">Tianhe</a> at The National University of Defence Technology (NUDT) with
 6,144 Intel CPUs and 5,120 AMD GPUs.  Debuting as China's fastest super computer</li>
 </ul>
 <p>SLURM is actively being developed, distributed and supported by
 <a href="https://www.llnl.gov">Lawrence Livermore National Laboratory</a>,
 <a href="http://www.hp.com">Hewlett-Packard</a> and
 <a href="http://www.bull.com">Bull</a>.
 It is also distributed and supported by
 <a href="http://www.adaptivecomputing.com">Adaptive Computing</a>,
 <a href="http://www.infiscale.com">Infiscale</a>,
 <a href="http://www.ibm.com">IBM</a> and
 <a href="http://www.sun.com">Sun Microsystems</a>.</p>

 <p style="text-align:center;">Last modified 25 March 2009</p>

 <!--#include virtual="footer.txt"-->
	<!--#include virtual="header.txt"-->

	<h1>SLURM: A Highly Scalable Resource Manager</h1>

	<p>SLURM is an open-source resource manager designed for Linux clusters of
	all sizes.
	It provides three key functions.
	First it allocates exclusive and/or non-exclusive access to resources
	(computer nodes) to users for some duration of time so they can perform work.
	Second, it provides a framework for starting, executing, and monitoring work
	(typically a parallel job) on a set of allocated nodes.
	Finally, it arbitrates contention for resources by managing a queue of
	pending work. </p>

	<p>SLURM's design is very modular with dozens of optional plugins.
	In its simplest configuration, it can be installed and configured in a
	couple of minutes (see <a href="http://www.linux-mag.com/id/7239/1/">
	Caos NSA and Perceus: All-in-one Cluster Software Stack</a>
	by Jeffrey B. Layton).
	More complex configurations rely upon a
	<a href="http://www.mysql.com/">MySQL</a> database for archiving
	<a href="accounting.html">accounting</a> records, managing
	<a href="resource_limits.html">resource limits</a> by user or bank account,
	or supporting sophisticated
	<a href="priority_multifactor.html">job prioritization</a> algorithms.
	SLURM also provides an Applications Programming Interface (API) for
	integration with external schedulers such as
	<a href="http://www.clusterresources.com/pages/products/maui-cluster-scheduler.php">
	The Maui Scheduler</a> or
	<a href="http://www.clusterresources.com/pages/products/moab-cluster-suite.php">
	Moab Cluster Suite</a>.</p>

	<p>While other resource managers do exist, SLURM is unique in several
	respects:
	<ul>
	<li>Its source code is freely available under the
	<a href="http://www.gnu.org/licenses/gpl.html">GNU General Public License</a>.</li>
	<li>It is designed to operate in a heterogeneous cluster with up to 65,536 nodes
	and hundreds of thousands of processors.</li>
	<li>It is portable; written in C with a GNU autoconf configuration engine.
	While initially written for Linux, other UNIX-like operating systems should
	be easy porting targets.</li>
	<li>SLURM is highly tolerant of system failures, including failure of the node
	executing its control functions.</li>
	<li>A plugin mechanism exists to support various interconnects, authentication
	mechanisms, schedulers, etc. These plugins are documented and simple enough for the motivated end user to understand the source and add functionality.</li>
	</ul></p>

	<p>SLURM provides resource management on about 1000 computers worldwide,
	including many of the most powerful computers in the world:
	<ul>
	<li><a href="https://asc.llnl.gov/computing_resources/bluegenel/">BlueGene/L</a>
	at LLNL with 106,496 dual-core processors</li>
	<li><a href="http://c-r-labs.com/">EKA</a> at Computational Research Laboratories,
	India with 14,240 Xeon processors and Infiniband interconnect</li>
	<li><a href="https://asc.llnl.gov/computing_resources/purple/">ASC Purple</a>
	an IBM SP/AIX cluster at LLNL with 12,208 Power5 processors and a Federation switch</li>
	<li><a href="http://www.bsc.es/plantillaA.php?cat_id=5">MareNostrum</a>
	a Linux cluster at Barcelona Supercomputer Center
	with 10,240 PowerPC processors and a Myrinet switch</li>
	<li><a href="http://en.wikipedia.org/wiki/Anton_(computer)">Anton</a>
	a massively parallel supercomputer designed and built by
	<a href="http://www.deshawresearch.com/">D. E. Shaw Research</a>
	for molecular dynamics simulation using 512 custom-designed ASICs
	and a three-dimensional torus interconnect </li>
	<li><a href="http://news.xinhuanet.com/english/2009-10/29/content_12356478.htm">Tianhe</a> at The National University of Defence Technology (NUDT) with
	6,144 Intel CPUs and 5,120 AMD GPUs. Debuting as China's fastest super computer</li>
	</ul>
	<p>SLURM is actively being developed, distributed and supported by
	<a href="https://www.llnl.gov">Lawrence Livermore National Laboratory</a>,
	<a href="http://www.hp.com">Hewlett-Packard</a> and
	<a href="http://www.bull.com">Bull</a>.
	It is also distributed and supported by
	<a href="http://www.adaptivecomputing.com">Adaptive Computing</a>,
	<a href="http://www.infiscale.com">Infiscale</a>,
	<a href="http://www.ibm.com">IBM</a> and
	<a href="http://www.sun.com">Sun Microsystems</a>.</p>

	<p style="text-align:center;">Last modified 25 March 2009</p>

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