[mpich-discuss] libmpi.so.12 error
Sophie Norman
sophie.norman at gmail.com
Tue Sep 9 06:37:24 CDT 2014
I've looked and there's definitely no OpenMPI installation, there is
however a Python-mpi4py installation, could that be causing the problem?
On 9 September 2014 12:08, Kenneth Raffenetti <raffenet at mcs.anl.gov> wrote:
> That looks like an error message from OpenMPI's mpiexec. That is surely
> part of the problem here. Do you have an OpenMPI installation somewhere
> that may be conflicting with your MPICH? One solution would be to make sure
> that the path to MPICH's mpiexec is first in your environment.
>
> Ken
>
> On 09/09/2014 05:31 PM, Sophie Norman wrote:
>
>> Hi Ken
>>
>> When I run that code I get the following error
>>
>> ------------------------------------------------------------
>> --------------
>> mpiexec was unable to launch the specified application as it could not
>> find an executable:
>>
>> Executable: -l
>> Node: raspberrypi
>>
>> while attempting to start process rank 0.
>> ------------------------------------------------------------
>> --------------
>>
>> Sophie
>>
>> On 9 September 2014 02:07, Kenneth Raffenetti <raffenet at mcs.anl.gov
>> <mailto:raffenet at mcs.anl.gov>> wrote:
>>
>> Let's try to verify that the library is properly located on all the
>> nodes you are running. We can do a simple test with mpiexec. Try
>> running:
>>
>> mpiexec -n 4 -machinefile /home/pi/mpi_testing/____machinefile -l
>> ls /home/rpimpi/mpich3-install/__lib/libmpi.so.12
>>
>> Ken
>>
>> On 09/08/2014 07:03 PM, Sophie Norman wrote:
>>
>> Hi Ken,
>> Yes I used mpicc to build the binary
>>
>> the oputput of mpicc -show is
>>
>> gcc -I/home/rpimpi/mpich3-install/__include
>> -L/home/rpimpi/mpich3-install/__lib -Wl,-rpath
>> -Wl,/home/rpimpi/mpich3-__install/lib -Wl,--enable-new-dtags
>> -lmpi -lrt
>> -lpthread
>>
>>
>> Sophie
>>
>> On 9 September 2014 00:48, 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:
>>
>> Did you use mpicc to build your binary? What is the output
>> of 'mpicc
>> -show'. The compile wrappers should encode an RPATH tag in
>> your
>> program so that setting an LD_LIBRARY_PATH to find libmpi.so
>> is
>> unncessary.
>>
>> Ken
>>
>>
>> On 09/08/2014 06:44 PM, Sophie Norman wrote:
>>
>> Hi,
>>
>> When running NAS parallel benchmarks using 4 Raspberry
>> Pi nodes each
>> running MPICH-3.1.2 I get the following error when I
>> try to run the
>> integer sort benchmark
>>
>> ~/NPB3.3/NPB3.3-MPI/bin $ mpiexec -n 4 -machinefile
>> /home/pi/mpi_testing/____machinefile ./is.S.4
>>
>>
>> NAS Parallel Benchmarks 3.3 -- IS Benchmark
>>
>> Size: 65536 (class S)
>> Iterations: 10
>> Number of processes: 1
>>
>> ERROR: compiled for 4 processes
>> Number of active processes: 1
>> Exiting program!
>>
>> ./is.S.4: error while loading shared libraries:
>> libmpi.so.12: cannot
>> open shared object file: No such file or directory
>> ./is.S.4: error while loading shared libraries:
>> libmpi.so.12: cannot
>> open shared object file: No such file or directory
>> ./is.S.4: error while loading shared libraries:
>> libmpi.so.12: cannot
>> open shared object file: No such file or directory
>>
>>
>>
>> I have tried
>> export
>>
>> LD_LIBRARY_PATH=$LD_LIBRARY_____PATH:/home/rpimpi/mpich3-___
>> _install/lib
>> on each of the nodes, and each node works individually
>> when run with
>> the file ./is.S.1
>>
>> $ldd ./is.S.4 give the following output for the master
>> node
>>
>> /usr/lib/arm-linux-gnueabihf/____libcofi_rpi.so
>> (0xb6edf000)
>> libmpi.so.12 =>
>> /home/rpimpi/mpich3-install/____lib/libmpi.so.12
>> (0xb6ca3000)
>> libc.so.6 => /lib/arm-linux-gnueabihf/libc.____so.6
>> (0xb6b68000)
>> librt.so.1 => /lib/arm-linux-gnueabihf/____librt.so.1
>> (0xb6b59000)
>> libpthread.so.0 =>
>> /lib/arm-linux-gnueabihf/____libpthread.so.0
>> (0xb6b3a000)
>> libgfortran.so.3 =>
>> /usr/lib/arm-linux-gnueabihf/____libgfortran.so.3
>> (0xb6a93000)
>> libm.so.6 => /lib/arm-linux-gnueabihf/libm.____so.6
>> (0xb6a22000)
>> libgcc_s.so.1 => /lib/arm-linux-gnueabihf/____
>> libgcc_s.so.1
>> (0xb69fa000)
>> /lib/ld-linux-armhf.so.3 (0xb6eed000)
>>
>>
>> please help
>>
>> Thanks
>>
>> Sophie
>>
>>
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