MPI: Difference between revisions

Jump to navigation Jump to search
No change in size ,  8 years ago
Line 1: Line 1:
== A Primer on Parallel Programming ==
== A Primer on Parallel Programming ==
{{quote|To pull a bigger wagon it is easier to add more oxen that to find (or build) a bigger ox.|Gropp, Lusk & Skjellum|Using MPI}}
{{quote|To pull a bigger wagon it is easier to add more oxen than to find (or build) a bigger ox.|Gropp, Lusk & Skjellum|Using MPI}}


In order to build a house as quickly as possible we do not look to a faster person to do all the construction more quickly, we use many people and spread the work among them so that tasks are being performed at the same time --- "in parallel". Computational problems are similar. There is a limit to how fast a single machine can work, so we attempt to divide up the problem and assign work to be completed concurrently to multiple computers.
In order to build a house as quickly as possible we do not look to a faster person to do all the construction more quickly, we use many people and spread the work among them so that tasks are being performed at the same time --- "in parallel". Computational problems are similar. There is a limit to how fast a single machine can work, so we attempt to divide up the problem and assign work to be completed concurrently to multiple computers.
Bureaucrats, cc_docs_admin, cc_staff
2,879

edits

Navigation menu