Hi
It seems that you have mixed an "old" LAM-MPI installation with OpenMPI.
To make sure your OpenMPI installation is ok you could try to use the
complete path to mpirun:
/data1/cluster/openmpi/bin/mpirun -np 1 /tmp/openmpi-1.4.3/examples/ring_c
You should also make sure that the compile-command is the one of
OpenMPI and not of LAM MPI.
( /data1/cluster/openmpi/bin/mpiCC or something like that)
Check your PATH environment variable to make sure it doesn't contain
any of the LAM MPI directories,
and make sure you set the LD_LIBRARY_PATH variable correctly (see
http://www.open-mpi.org/faq/?category=running#run-prereqs)
Hope this helps
Jody
On Thu, Jul 7, 2011 at 8:44 AM, zhuangchao <freeoser_at_[hidden]> wrote:
> hello all :
>
> I installed the openmpi-1.4.3 on redhat as the following step :
>
> 1. ./configure --prefix=/data1/cluster/openmpi
>
> 2. make
>
> 3. make install
>
> And I compiled the examples of openmpi-1.4.3 as the following
> step :
>
> 1. make
>
> Then I run the example :
>
> ./mpirun -np 1 /tmp/openmpi-1.4.3/examples/ring_c
>
> I get the following error :
>
> -----------------------------------------------------------------------------
> It seems that there is no lamd running on the host node1.
> This indicates that the LAM/MPI runtime environment is not operating.
> The LAM/MPI runtime environment is necessary for MPI programs to run
> (the MPI program tired to invoke the "MPI_Init" function).
>
> Please run the "lamboot" command the start the LAM/MPI runtime
> environment. See the LAM/MPI documentation for how to invoke
> "lamboot" across multiple machines.
> -----------------------------------------------------------------------------
>
> I run openmpi , but I get the error from lam-mpi . why ?
> Can you help me ?
>
> Thank you !
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>
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