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MPI: Using Platform MPI - Revision history
2026-05-04T22:48:16Z
Revision history for this page on the wiki
MediaWiki 1.35.0
http://wiki.define-technology.com/mediawiki-1.35.0/index.php?title=MPI:_Using_Platform_MPI&diff=1135&oldid=prev
David at 11:03, 15 October 2012
2012-10-15T11:03:24Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:03, 15 October 2012</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l36" >Line 36:</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></syntaxhighlight></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></syntaxhighlight></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">===</del>== Set Compiler for MPI <del class="diffchange diffchange-inline">===</del>==</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>== Set Compiler for MPI ==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''GNU'''</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''GNU'''</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">===</del>== Run without LSF <del class="diffchange diffchange-inline">===</del>==</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>== Run without LSF ==</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>export MPI_USELSF=0</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>export MPI_USELSF=0</div></td></tr>
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David
http://wiki.define-technology.com/mediawiki-1.35.0/index.php?title=MPI:_Using_Platform_MPI&diff=1134&oldid=prev
David: Created page with "== Hosts File == When running on nodes (not through LSF), the hosts file needs to be in the format: <syntaxhighlight> host1:12 host2:12 </syntaxhighlight> Note, the normal nodename format (no :core..."
2012-10-15T11:02:59Z
<p>Created page with "== Hosts File == When running on nodes (not through LSF), the hosts file needs to be in the format: <syntaxhighlight> host1:12 host2:12 </syntaxhighlight> Note, the normal nodename format (no :core..."</p>
<p><b>New page</b></p><div>== Hosts File ==<br />
When running on nodes (not through LSF), the hosts file needs to be in the format:<br />
<syntaxhighlight><br />
host1:12<br />
host2:12<br />
</syntaxhighlight><br />
Note, the normal nodename format (no :cores) worked for up to 10 cores but bombed out with ssh errors at 11/12 cores. <br />
<br />
== Debugging ==<br />
* Include the -prot flag to see what IP/communication<br />
* Include the -d flag to turn debugging on<br />
<syntaxhighlight><br />
mpirun -d -prot -np 24 -hostfile ./hosts ./binary<br />
</syntaxhighlight><br />
<br />
== Run on particular subnet (eth1) ==<br />
Best to add to modulefile<br />
<syntaxhighlight><br />
setenv MPIRUN_OPTIONS "-prot subnet 10.41.32.0"<br />
</syntaxhighlight><br />
<br />
== Bind to CPU (affinity) ==<br />
* Map first rank on each node to 0 (ppn=1)<br />
<syntaxhighlight><br />
-cpu_bind=v,MAP_CPU:0<br />
</syntaxhighlight><br />
<br />
* Map 2 MPI procs to each physical CPU (on 6 core intels)<br />
<syntaxhighlight><br />
-cpu_bind=v,MAP_CPU:0,6<br />
</syntaxhighlight><br />
<br />
== Force to run on Eth (When IB Present) ==<br />
<syntaxhighlight><br />
mpirun -TCP -np 2 -hostlist "node1 node2" a.out<br />
</syntaxhighlight><br />
<br />
===== Set Compiler for MPI =====<br />
'''GNU'''<br />
<syntaxhighlight><br />
setenv MPI_CC /usr/bin/gcc<br />
setenv MPI_CXX /usr/bin/g++<br />
setenv MPI_F77 /usr/bin/g77<br />
setenv MPI_F90 /usr/bin/gfortran<br />
setenv CC /usr/bin/gcc<br />
setenv FC /usr/bin/gfortran<br />
</syntaxhighlight><br />
<br />
'''Intel'''<br />
<syntaxhighlight><br />
setenv MPI_CXX icc<br />
setenv MPI_CC icc<br />
setenv MPI_F77 ifort<br />
setenv MPI_F90 ifort<br />
setenv CC icc<br />
setenv FC ifort<br />
</syntaxhighlight><br />
<br />
===== Run without LSF =====<br />
<syntaxhighlight><br />
export MPI_USELSF=0<br />
</syntaxhighlight></div>
David