[yt-svn] commit/yt-doc: sskory: Adding a note about how to automate num_procs.

[Bitbucket]

1 new commit in yt-doc:


https://bitbucket.org/yt_analysis/yt-doc/changeset/57479e0525a8/
changeset:   57479e0525a8
user:        sskory
date:        2011-12-15 00:43:03
summary:     Adding a note about how to automate num_procs.
affected #:  1 file

diff -r 6cd96899aab9d96431d13fb08274a9c465d3e28e -r 57479e0525a8dec0da5d7e0fa75273b540a22f6e source/advanced/parallel_computation.rst
--- a/source/advanced/parallel_computation.rst
+++ b/source/advanced/parallel_computation.rst
@@ -151,6 +151,11 @@
    
    # The number 4, below, is the number of processes to parallelize over, which
    # is generally equal to the number of MPI tasks the job is launched with.
+   # If num_procs is set to zero or a negative number, the for loop below
+   # will be run such that each iteration of the loop is done by a single MPI
+   # task. Put another way, setting it to zero means that no matter how many
+   # MPI tasks the job is run with, num_procs will default to the number of
+   # MPI tasks automatically.
    num_procs = 4
    
    # fns is a list of all Enzo hierarchy files in directories one level down.

Repository URL: https://bitbucket.org/yt_analysis/yt-doc/

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