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

Kenneth Raffenetti raffenet at mcs.anl.gov
Tue Jan 28 10:36:30 CST 2014 

Just making sure, you recompiled your program with mpicxx before running 
it again?

On 01/28/2014 10:30 AM, ehsan saei wrote:
> Thanks but, still the same result
>
>
> On Tue, Jan 28, 2014 at 5:20 PM, Kenneth Raffenetti
> <raffenet at mcs.anl.gov <mailto:raffenet at mcs.anl.gov>> wrote:
>
>     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>
>         <mailto: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>>
>                  <mailto: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>>
>                       <mailto: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>>
>                  <mailto: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>>
>                  <mailto: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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