[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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