There are two methods the first (and not my preferred method!) is to simply find the latest version from the on-line repositories as of today the latest version was 1.6.5. Open MPI is relatively simple to install, I should point out I have not tried this on a Fedora machine but as long as you have the same libraries/dependencies then it should be the same procedure. They also allow for the manipulation of process groups.
An example is the world communicator which contains attributes such as the size (number of processors) and rank (ordered topology) of the group. Communicators: These connect all the MPI processes into groups, called process groups.This operations protocol is usually called a master-to-slave process. Point-to-Point communication: Most common example I can think of is the use of a head node splitting a dataset into smaller memory chunks based on the number of sub-processors that are available, where each will then compute the same task in parallel.Collective functions: Main example is the MPI Reduce function, which allows you to perform simple operations such as a summation using the family of processors to do so.For an in-depth idea of what it can do visit the website but a few key things that are useful to know are: It stands for Message Parsing Interface (MPI) and allows you to do a whole manner of parallelised computing applications. In a world where time is of the essence and most computers these days have more than one core, why let them sit around idle doing nothing, put them to good use!! Open MPI ( ) is one of the most liberating tools out there.
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