<div dir="ltr">Yes I recompiled but the result is the same as before.<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jan 28, 2014 at 5:36 PM, Kenneth Raffenetti <span dir="ltr"><<a href="mailto:raffenet@mcs.anl.gov" target="_blank">raffenet@mcs.anl.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Just making sure, you recompiled your program with mpicxx before running it again?<div class="im"><br>
<br>
On 01/28/2014 10:30 AM, ehsan saei wrote:<br>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">
Thanks but, still the same result<br>
<br>
<br>
On Tue, Jan 28, 2014 at 5:20 PM, Kenneth Raffenetti<br></div><div class="im">
<<a href="mailto:raffenet@mcs.anl.gov" target="_blank">raffenet@mcs.anl.gov</a> <mailto:<a href="mailto:raffenet@mcs.anl.gov" target="_blank">raffenet@mcs.anl.gov</a>>> wrote:<br>
<br>
    Try running 'sudo update-alternatives --set mpi<br>
    /usr/include/mpich2'. This tells the Ubuntu alternatives system to<br>
    use mpich2 by default.<br>
<br>
    Ken<br>
<br>
<br>
    On 01/28/2014 10:15 AM, ehsan saei wrote:<br>
<br>
        Yes you are right. I have both of them. Now what is the solution for<br>
        this machine?<br>
<br>
<br>
        On Tue, Jan 28, 2014 at 4:23 PM, Kenneth Raffenetti<br>
        <<a href="mailto:raffenet@mcs.anl.gov" target="_blank">raffenet@mcs.anl.gov</a> <mailto:<a href="mailto:raffenet@mcs.anl.gov" target="_blank">raffenet@mcs.anl.gov</a>><br></div><div class="im">
        <mailto:<a href="mailto:raffenet@mcs.anl.gov" target="_blank">raffenet@mcs.anl.gov</a> <mailto:<a href="mailto:raffenet@mcs.anl.gov" target="_blank">raffenet@mcs.anl.gov</a>>><u></u>> wrote:<br>
<br>
             This problem usually comes from having a mix of openmpi and<br>
        mpich<br>
             both installed on the same machine. Is that the case? You<br>
        can search<br>
             for openmpi by running something like this from the command<br>
        line:<br>
<br>
                dpkg -l | grep openmpi<br>
<br>
<br>
             On 01/28/2014 08:50 AM, ehsan saei wrote:<br>
<br>
                 for size the output is 1 independent from the number of<br>
                 processed that I<br>
                 declare with "mpiexec -n ..."<br>
<br>
<br>
                 On Tue, Jan 28, 2014 at 3:12 PM, Reuti<br>
                 <<a href="mailto:reuti@staff.uni-marburg.de" target="_blank">reuti@staff.uni-marburg.de</a><br>
        <mailto:<a href="mailto:reuti@staff.uni-marburg.de" target="_blank">reuti@staff.uni-<u></u>marburg.de</a>><br>
        <mailto:<a href="mailto:reuti@staff.uni-__marburg.de" target="_blank">reuti@staff.uni-__<u></u>marburg.de</a><br>
        <mailto:<a href="mailto:reuti@staff.uni-marburg.de" target="_blank">reuti@staff.uni-<u></u>marburg.de</a>>><br></div>
                 <mailto:<a href="mailto:reuti@staff.uni-____marburg.de" target="_blank">reuti@staff.uni-____<u></u>marburg.de</a><br>
        <mailto:<a href="mailto:reuti@staff.uni-__marburg.de" target="_blank">reuti@staff.uni-__<u></u>marburg.de</a>><div class="im"><br>
<br>
                 <mailto:<a href="mailto:reuti@staff.uni-__marburg.de" target="_blank">reuti@staff.uni-__<u></u>marburg.de</a><br>
        <mailto:<a href="mailto:reuti@staff.uni-marburg.de" target="_blank">reuti@staff.uni-<u></u>marburg.de</a>>>>> wrote:<br>
<br>
                      Am 28.01.2014 um 11:18 schrieb ehsan saei:<br>
<br>
                       > I still have the problem with mpi<br>
<br>
                      In the program you cited you don't output the<br>
        size. Can you<br>
                 output<br>
                      the size in addition?<br>
<br>
                      -- Reuti<br>
<br>
<br>
<br>
                       > On Mon, Jan 27, 2014 at 4:47 PM, ehsan saei<br>
                 <<a href="mailto:ehsan.saei@gmail.com" target="_blank">ehsan.saei@gmail.com</a> <mailto:<a href="mailto:ehsan.saei@gmail.com" target="_blank">ehsan.saei@gmail.com</a>><br>
        <mailto:<a href="mailto:ehsan.saei@gmail.com" target="_blank">ehsan.saei@gmail.com</a> <mailto:<a href="mailto:ehsan.saei@gmail.com" target="_blank">ehsan.saei@gmail.com</a>>><br>
                      <mailto:<a href="mailto:ehsan.saei@gmail.com" target="_blank">ehsan.saei@gmail.com</a><br>
        <mailto:<a href="mailto:ehsan.saei@gmail.com" target="_blank">ehsan.saei@gmail.com</a>><br>
<br>
                 <mailto:<a href="mailto:ehsan.saei@gmail.com" target="_blank">ehsan.saei@gmail.com</a><br></div><div class="im">
        <mailto:<a href="mailto:ehsan.saei@gmail.com" target="_blank">ehsan.saei@gmail.com</a>>><u></u>>__> wrote:<br>
                       > which mpicxx returns: /usr/bin/mpicxx<br>
                       ><br>
                       ><br>
                       > On Mon, Jan 27, 2014 at 4:44 PM, Reuti<br>
                      <<a href="mailto:reuti@staff.uni-marburg.de" target="_blank">reuti@staff.uni-marburg.de</a><br>
        <mailto:<a href="mailto:reuti@staff.uni-marburg.de" target="_blank">reuti@staff.uni-<u></u>marburg.de</a>><br>
                 <mailto:<a href="mailto:reuti@staff.uni-__marburg.de" target="_blank">reuti@staff.uni-__<u></u>marburg.de</a><br>
        <mailto:<a href="mailto:reuti@staff.uni-marburg.de" target="_blank">reuti@staff.uni-<u></u>marburg.de</a>>><br></div>
                 <mailto:<a href="mailto:reuti@staff.uni-____marburg.de" target="_blank">reuti@staff.uni-____<u></u>marburg.de</a><br>
        <mailto:<a href="mailto:reuti@staff.uni-__marburg.de" target="_blank">reuti@staff.uni-__<u></u>marburg.de</a>><div><div class="h5"><br>
<br>
                 <mailto:<a href="mailto:reuti@staff.uni-__marburg.de" target="_blank">reuti@staff.uni-__<u></u>marburg.de</a><br>
        <mailto:<a href="mailto:reuti@staff.uni-marburg.de" target="_blank">reuti@staff.uni-<u></u>marburg.de</a>>>>> wrote:<br>
                       > Am 27.01.2014 um 16:41 schrieb ehsan saei:<br>
                       ><br>
                       > > I compile the code with:  mpicxx main.cpp<br>
                       > > and run it with: mpiexec -n 8 ./a.out<br>
                       ><br>
                       > Does `which mpicxx` resp. `which mpiexec` point<br>
        to the<br>
                 intended<br>
                      target?<br>
                       ><br>
                       > -- Reuti<br>
                       ><br>
                       ><br>
                       > > I use a single computer with dual core core i3<br>
                       > ><br>
                       > ><br>
                       > > On Mon, Jan 27, 2014 at 4:39 PM, Wesley Bland<br>
                      <<a href="mailto:wbland@mcs.anl.gov" target="_blank">wbland@mcs.anl.gov</a> <mailto:<a href="mailto:wbland@mcs.anl.gov" target="_blank">wbland@mcs.anl.gov</a>><br>
        <mailto:<a href="mailto:wbland@mcs.anl.gov" target="_blank">wbland@mcs.anl.gov</a> <mailto:<a href="mailto:wbland@mcs.anl.gov" target="_blank">wbland@mcs.anl.gov</a>>><br>
                 <mailto:<a href="mailto:wbland@mcs.anl.gov" target="_blank">wbland@mcs.anl.gov</a> <mailto:<a href="mailto:wbland@mcs.anl.gov" target="_blank">wbland@mcs.anl.gov</a>><br>
        <mailto:<a href="mailto:wbland@mcs.anl.gov" target="_blank">wbland@mcs.anl.gov</a> <mailto:<a href="mailto:wbland@mcs.anl.gov" target="_blank">wbland@mcs.anl.gov</a>>>>> wrote:<br>
                       > > The code is fine. The problem is most likely<br>
        either<br>
                 the way<br>
                      you’re executing your code or the way you<br>
        installed it. Can<br>
                 you tell<br>
                      us how you executed in on the command line to start?<br>
                       > ><br>
                       > > Thanks,<br>
                       > > Wesley<br>
                       > ><br>
                       > ><br>
                       > ><br>
                       > ><br></div></div>
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