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Subject: Re: [OMPI users] openmpi-1.6.4 mpicc fails to compile hello_c.c
From: Jeff Squyres (jsquyres) (jsquyres_at_[hidden])
Date: 2013-03-07 09:34:44

On Mar 7, 2013, at 9:31 AM, Reuti <reuti_at_[hidden]> wrote:

>> [root_at_tesla examples]# echo $LD_LIBRARY_PATH
>> /opt/scyld/openmpi/1.6.4/gnu/lib
>> [root_at_tesla examples]# which mpicc
>> /opt/scyld/openmpi/1.6.4/gnu/bin/mpicc
>> [root_at_tesla examples]# mpicc -o hello_c hello_c.c
>> /tmp/ccuZg1I9.o: In function `main':
>> hello_c.c:(.text+0x1d): undefined reference to `ompi_mpi_comm_world'
>> hello_c.c:(.text+0x2b): undefined reference to `ompi_mpi_comm_world'
> What is the output if you compile in addition with -v (verbose)?

Also, what's the output if you use --showme? I'd like to see the underlying command that is being used.

When you successfully compile/link hello_cxx, what does "ldd hello_cxx" show?

Jeff Squyres
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