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08.08.2014
Analytics libraries
R/parallel
Add-on package extends R by adding parallel computing capabilities
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2557021/
Rmpi
Wrapper to MPI
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19.05.2014
with my /home/layton
directory on my local system (host = desktop
). I also access an HPC system that has its own /home/jlayton
directory (the login node is login1
). On the HPC system I only keep some
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26.02.2014
). In fact, that’s the subject of the next article.
The Author
Jeff Layton has been in the HPC business for almost 25 years (starting when he was 4 years old). He can be found lounging around at a nearby
14%
15.01.2014
(MPI), provisioning, and monitoring can also limit the data received and frequency at which it is gathered. As previously mentioned, oversubscribed networks are another source of bottlenecks, so you need
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10.09.2013
domains. Assuming that your application is scalable or that you might want to tackle larger data sets, what are the options to move beyond OpenMP? In a single word, MPI (okay, it is an acronym). MPI
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28.08.2013
with libgpg-error
1.7.
MPI library (optional but required for multinode MPI support). Tested with SGI Message-Passing Toolkit 1.25/1.26 but presumably any MPI library should work.
Because these tools
26%
17.07.2013
Hadoop version 2 expands Hadoop beyond MapReduce and opens the door to MPI applications operating on large parallel data stores.
... non-MapReduce algorithms has long been a goal of the Hadoop developers. Indeed, YARN now offers new processing frameworks, including MPI, as part of the Hadoop infrastructure.
Please note that existing ...
Hadoop version 2 expands Hadoop beyond MapReduce and opens the door to MPI applications operating on large parallel data stores.
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03.07.2013
to understand the MPI portion, and so on. At this point, Amdahl’s Law says that to get better performance, you need to focus on the serial portion of your application.
Whence Does Serial Come?
The parts
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05.06.2013
to the question of how to get started writing programs for HPC clusters is, “learn MPI programming.” MPI (Message Passing Interface) is the mechanism used to pass data between nodes (really, processes).
Typically
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08.05.2013
and many nodes, so why not use these cores to copy data? There is a project to do just this: dcp
is a simple code that uses MPI and a library called libcircle
to copy a file. This sounds exactly like what