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<div class="moz-cite-prefix">I don't think that is going to work --
but you can try it. Cleanup could be ugly though.</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">If you want to streamline your testing
I don't recommend having a single executable call MPI_Initialize
and MPI_Finalize repeatedly -- you should generally only do that
once. You can, however, mimic what we did in the BabyBLAS and
OpenBLAS assignments and have the size of the matrix and</div>
<div class="moz-cite-prefix">the number of OpenMP threads to used
per processor be COMMAND LINE ARGUMENTS. That should be a
minimal code addition and you can copy the relevant portions from
the fortran codes we used before.<br>
</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">You could then have a PBS script for
executing on 1 processor, another for 2 processors, another for 3
processors, etc., and inside that scripts call the same program
over and over again -- but use a different matrix size and number
of OpenMP threads per processor in each call. <br>
</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">I expect you to really hit these
processors hard, so I made sure that before I left 218 today that
the AC was on its lowest setting!</div>
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<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">During our time tomorrow afternoon I
hope to show you how I had to structure a program to "re-use" the
processes I had created on each node.</div>
<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix"><br>
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<div class="moz-cite-prefix">On 4/21/20 7:14 PM, William Carl
Baglivio wrote:<br>
</div>
<blockquote type="cite"
cite="mid:8c870007b84c430c8f30a2200f45a8fc@BN6PR01MB2228.prod.exchangelabs.com">
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Dr. Pounds,</div>
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One of the factors of MPI that I've been trying to stay mindful
of is making sure that the MPI stuff is fully closed out (so I
don't leave any fragments behind). In the main section of
mmm_mpi.c, I want to run the tests over a range of dimensions as
opposed to having to go back and define the dimension every
time. I am good to loop the code after the MPI_Finalize() call?
I.e.</div>
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<br>
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For (int I = 2000; I < 10000; I += 2000)</div>
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{</div>
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setting up code; running mmm; returning results;
MPI_Finalize();</div>
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}</div>
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<br>
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~Will B.</div>
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<pre class="moz-signature" cols="72">--
Andrew J. Pounds, Ph.D. (<a class="moz-txt-link-abbreviated" href="mailto:pounds_aj@mercer.edu">pounds_aj@mercer.edu</a>)
Professor of Chemistry and Computer Science
Director of the Computational Science Program
Mercer University, Macon, GA 31207 (478) 301-5627
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