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

ehsan saei ehsan.saei at gmail.com
Tue Jan 28 11:11:25 CST 2014


 here is the result:
/etc/alternatives/mpicxx ->/usr/bin/mpicxx.mpich2
/etc/alternatives/mpiexec ->/usr/bin/mpiexec.openmpi


On Tue, Jan 28, 2014 at 5:58 PM, Kenneth Raffenetti <raffenet at mcs.anl.gov>wrote:

> To double check that the alternatives system did the right thing, can you
> can check the output of these commands and send us the results?
>
>   ls -l /etc/alternatives/mpicxx
>   ls -l /etc/alternatives/mpiexec
>
>
> On 01/28/2014 10:42 AM, ehsan saei wrote:
>
>> Yes I recompiled but the result is the same as before.
>>
>>
>> On Tue, Jan 28, 2014 at 5:36 PM, Kenneth Raffenetti
>> <raffenet at mcs.anl.gov <mailto:raffenet at mcs.anl.gov>> wrote:
>>
>>     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>
>>         <mailto: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>>
>>                  <mailto: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>>>
>>                           <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
>>         <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>>>
>>                                <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
>>         <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>>>
>>                           <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
>>         <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>>>
>>                           <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 <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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