If all processes are coming out to be rank 0, it *may* mean that you're
dynamically linking to the wrong MPI library at run time, or have some other
kind of MPI implementation/version mismatch.
At least, it can mean this in a POSIX environment. I don't rightly know what
it means in a Windows environment, but I thought I'd throw this out there...
On Aug 9, 2011, at 8:55 AM, Shiqing Fan wrote:
> Hi Renyong,
>
> If the same problem occurs under Linux, then the Boost.MPI library might have
> compatible issues with Open MPI, but it still needs to be verified.
>
> However, I'm also confused why the simple code didn't work for you. The only
> guess is the environment is messed up by different MPI implementations, that
> the launched mpi processes are several 'singleton' jobs which have all rank 0.
>
>
> Regards,
> Shiqing
>
> On 2011-08-09 2:00 PM, renyong.yang wrote:
>> Hi,
>>
>> I've solved the same weird error on Linux, but have not tried Windows
>> yet. The error recurs on Linux system, when I firstly use mpich on my Linux,
>> the program works fine, then I uninstalled it and switched to your open-mpi,
>> the error came out without warning, and I tried to change the compiler to
>> mpic++ other than g++, the error remains. So I doubt if the Boost.MPI is
>> compatible with current MPI system, I recompiled the Boost.MPI library and
>> substituted the old ones, the code with Boost library came back to work. So
>> I guess the old compiled Boost library depends on other library like mpich,
>> so it can't work with current open-mpi because they are incompatible,
>> however, I'm still confused why simple code (In the last mail I sent to you)
>> which does not depend on Boost library(I never used mpich on Windows
>> before), can not work.
>>
>> Wishes~
>> Renyong
>>
>> 2011/8/9 Shiqing Fan <f...@hlrs.de>
>> Hi,
>>
>> The code works for me under MinGW console with the pre-compiled installer.
>> Could you try "which mpicc" to ensure that the correct Open MPI commands are
>> in path?
>>
>> For building Open MPI by your self with CMake, you have to configure it in
>> the GUI and then generate the sln files by pressing the generate button. I
>> don't recommend to use the other two means, they haven't been tested for
>> some while.
>>
>>
>> Regards,
>> Shiqing
>>
>>
>> On 2011-08-09 3:48 AM, renyong.yang wrote:
>>> hi,
>>> the following code:
>>> int main(int argc, char **argv)
>>> {
>>> int procnum;
>>>
>>> /* Initialize MPI */
>>> MPI_Init(&argc, &argv);
>>>
>>> /* Find out this processor number */
>>> MPI_Comm_rank(MPI_COMM_WORLD, &procnum);
>>> /* Find out the number of processors */
>>> std::cout << "I'm process: " << procnum << std::endl;
>>> MPI_Finalize();
>>>
>>> return 0;
>>> }
>>>
>>> also goes with the same rank "0" error, I think if there's something wrong
>>> with the auxiliary program "mpirun" ?
>>>
>>> BTW, I tried all the 3 means on your
>>> http://svn.open-mpi.org/svn/ompi/trunk/README.WINDOWS.txt guideline but
>>> none worked to compile my own dll for
>>> http://www.open-mpi.org/software/ompi/v1.4/downloads/openmpi-1.4.3.tar.bz2,
>>> the first approach failed because I found no .sln file in the distributed
>>> tarballs after configuring with cmake, the second mean I can not use is the
>>> lacking of
>>> ompi-static.tgz
>>>
>>>
>>> file, the 3rd solution I tried does not work neither, because I don't know
>>> what the
>>> ash.exe
>>>
>>> shell interpreter you are actually pointing to, so I'd be much appreciated
>>> if you can tell me the a working approach. Thanks very much.
>>>
>>> 2011/8/9 Shiqing Fan <f...@hlrs.de>
>>> Hi,
>>>
>>> I've never tried this Boost.MPI with Open MPI on Windows. Does it work
>>> without the Boost.MPI library? Did you run your test under MinGW?
>>>
>>>
>>> Regards,
>>> Shiqing
>>>
>>>
>>> On 2011-08-08 5:31 PM, renyong.yang wrote:
>>>> Run time environment of mine is Windows 7, with the unstable
>>>> OpenMPI_v1.5.3-2_win32.exe release for Windows, together with Microsoft
>>>> Compute Cluster Pack. Additionally I'm using Boost.MPI library v1.47
>>>> compiled by mingw, I write those following codes:
>>>> int main(int argc, char **argv)
>>>> {
>>>> mpi::environment env(argc, argv); // Boost.MPI class
>>>> boost::mpi::communicator worldCom; // Boost.MPI class
>>>> std::cout << "rank():" << worldCom.rank() << std::endl;
>>>> worldCom.barrier();
>>>>
>>>>
>>>>
>>>> return 0;
>>>> }
>>>> and successfully compiled and linked with your library as "a.exe" by
>>>> mingw, however, if I run it:
>>>> >mpirun -np 4 a.exe
>>>> the command will create 4 process with the same rank "0", I wonder if it's
>>>> the bug of your unstable release for windows?
>>>> BTW, can you publish the Visual studio project to the subversion? Thanks
>>>> very much.
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> devel mailing list
>>>>
>>>> de...@open-mpi.org
>>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>>
>>>
>>> --
>>> ---------------------------------------------------------------
>>> Shiqing Fan
>>> High Performance Computing Center Stuttgart (HLRS)
>>> Tel: ++49(0)711-685-87234 Nobelstrasse 19
>>> Fax: ++49(0)711-685-65832 70569 Stuttgart
>>>
>>> http://www.hlrs.de/organization/people/shiqing-fan/
>>>
>>> email:
>>> f...@hlrs.de
>>>
>>
>>
>> --
>> ---------------------------------------------------------------
>> Shiqing Fan
>> High Performance Computing Center Stuttgart (HLRS)
>> Tel: ++49(0)711-685-87234 Nobelstrasse 19
>> Fax: ++49(0)711-685-65832 70569 Stuttgart
>>
>> http://www.hlrs.de/organization/people/shiqing-fan/
>>
>> email:
>> f...@hlrs.de
>>
>
>
> --
> ---------------------------------------------------------------
> Shiqing Fan
> High Performance Computing Center Stuttgart (HLRS)
> Tel: ++49(0)711-685-87234 Nobelstrasse 19
> Fax: ++49(0)711-685-65832 70569 Stuttgart
>
> http://www.hlrs.de/organization/people/shiqing-fan/
>
> email:
> f...@hlrs.de
> _______________________________________________
> devel mailing list
> de...@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/devel
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