[mpich-discuss] A problem in running mpi code on ubuntu 13.10

[Kenneth Raffenetti]

Try running 'sudo update-alternatives --set mpi /usr/include/mpich2'. 
This tells the Ubuntu alternatives system to use mpich2 by default.

Ken

On 01/28/2014 10:15 AM, ehsan saei wrote:
> Yes you are right. I have both of them. Now what is the solution for
> this machine?
>
>
> On Tue, Jan 28, 2014 at 4:23 PM, Kenneth Raffenetti
> <raffenet at mcs.anl.gov <mailto:raffenet at mcs.anl.gov>> wrote:
>
>     This problem usually comes from having a mix of openmpi and mpich
>     both installed on the same machine. Is that the case? You can search
>     for openmpi by running something like this from the command line:
>
>        dpkg -l | grep openmpi
>
>
>     On 01/28/2014 08:50 AM, ehsan saei wrote:
>
>         for size the output is 1 independent from the number of
>         processed that I
>         declare with "mpiexec -n ..."
>
>
>         On Tue, Jan 28, 2014 at 3:12 PM, Reuti
>         <reuti at staff.uni-marburg.de <mailto:reuti at staff.uni-marburg.de>
>         <mailto:reuti at staff.uni-__marburg.de
>         <mailto:reuti at staff.uni-marburg.de>>> wrote:
>
>              Am 28.01.2014 um 11:18 schrieb ehsan saei:
>
>               > I still have the problem with mpi
>
>              In the program you cited you don't output the size. Can you
>         output
>              the size in addition?
>
>              -- Reuti
>
>
>
>               > On Mon, Jan 27, 2014 at 4:47 PM, ehsan saei
>         <ehsan.saei at gmail.com <mailto:ehsan.saei at gmail.com>
>              <mailto:ehsan.saei at gmail.com
>         <mailto:ehsan.saei at gmail.com>>> wrote:
>               > which mpicxx returns: /usr/bin/mpicxx
>               >
>               >
>               > On Mon, Jan 27, 2014 at 4:44 PM, Reuti
>              <reuti at staff.uni-marburg.de
>         <mailto:reuti at staff.uni-marburg.de>
>         <mailto:reuti at staff.uni-__marburg.de
>         <mailto:reuti at staff.uni-marburg.de>>> wrote:
>               > Am 27.01.2014 um 16:41 schrieb ehsan saei:
>               >
>               > > I compile the code with:  mpicxx main.cpp
>               > > and run it with: mpiexec -n 8 ./a.out
>               >
>               > Does `which mpicxx` resp. `which mpiexec` point to the
>         intended
>              target?
>               >
>               > -- Reuti
>               >
>               >
>               > > I use a single computer with dual core core i3
>               > >
>               > >
>               > > On Mon, Jan 27, 2014 at 4:39 PM, Wesley Bland
>              <wbland at mcs.anl.gov <mailto:wbland at mcs.anl.gov>
>         <mailto:wbland at mcs.anl.gov <mailto:wbland at mcs.anl.gov>>> wrote:
>               > > The code is fine. The problem is most likely either
>         the way
>              you’re executing your code or the way you installed it. Can
>         you tell
>              us how you executed in on the command line to start?
>               > >
>               > > Thanks,
>               > > Wesley
>               > >
>               > >
>               > >
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