Introduction to MPI - MPI Playlist - Video 2

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This Introduction to MPI video was taken from the two day MPI workshop as part of the XSEDE Monthly Workshop Series:

This is video 2 of 6

XSEDE has a Code of Conduct and a Terminology policy, information regarding those two things can be found at the links below:

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Thanks for the lecture. I will like to confirm that the MPI_SUM combines the "mypi" values from all the slave PEs and not sum all the " mypi"...

b.c.
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Thanks for the lecture. Very clear and useful! I do have a question. For the example of "finding pi". If I have 1000 PE, when I input the number of intervals, do I have to input a multiple times of 1000 like 2000? How about 1500? or how about a number smaller than the PE number, like 800?

qinqinkong