<span id="result_box" class="" lang="en"><span class="hps">Good afternoon.</span><br> <span class="hps">I am installing</span> <span class="hps">the</span> <span class="hps">WRF</span> <span class="hps">numerical</span> <span class="hps">model</span> <span class="hps">in</span> <span class="hps">a</span> <span class="hps">single computer</span> <span class="hps">with 2</span> <span class="hps">cores and</span> <span class="hps">2 threads</span> <span class="hps">and I see that</span> <span class="hps">there are 3</span> <span class="hps">ways to run</span><span>:</span> <span class="hps">Serial,</span> <span class="hps">OpenMP</span> <span class="hps">and</span> <span class="hps">Dmpar</span><span>.</span><br>
 <span class="hps">Mpich</span> <span class="hps atn">(</span><span>Dmpar</span> <span class="hps">option</span><span>) can</span> <span class="hps">be run on a</span> <span class="hps">single computer</span><span>?</span><span>.</span><br>
 <span class="hps">In other</span> <span class="hps">words,</span> <span class="hps">if I run</span> <span class="hps">the program with</span> <span class="hps">mpich</span> <span class="hps">indicating</span> <span class="hps">the two nuclei</span> <span class="hps">is faster than</span> <span class="hps">with</span> <span class="hps">openmp</span><span>?</span><br>
 <span class="hps">How many processes</span> <span class="hps atn">(-</span><span>np</span><span>) should</span> <span class="hps">tell</span> <span class="hps">mpich</span> <span class="hps">to be</span> <span class="hps">faster than</span> <span class="hps">openmp</span><span>?</span><br>
 <span class="hps">I'm</span> <span class="hps">running</span> <span class="hps">as follows</span><span>:</span><br><br>export CC=icc<br>export FC=ifort<br>./configure --prefix=$HOME/Mpich2<br>make<br>make install<br>
cd $HOME<br>touch .mpd.conf<br>chmod 600 .mpd.conf<br>gedit .mpdhost y escribir:<br>MPD_SECRETWORD=angelo1903<br>mpdboot -v -n 1 --ncpus=2<br>mpirun -np 2 ./run.exe<br><br><br> <span class="hps">In advance</span> <span class="hps">thank you very much</span><span>.</span></span><br clear="all">
<br>-- <br>Angelo Pascualetti A.<br>Meteorólogo<br>Direccion General Aeronautica Civil<br>Aeropuerto Cerro Moreno<br>Antofagasta<br><br>