Why I got error: `error while loading shared libraries: libmpich.so.3`?

Question

I installed mpich-3.0.4 not in a default location. I installed it based on the mpich installer's guidance.

However when I try to run:

mpiexec -n 4 -f machinefile ./mpich-3.0.4/examples/cpi

It gives me an error, which is:

./mpitrial/official_examples/cpi: error while loading shared libraries: libmpich.so.3: cannot open shared object file: No such file or directory

I had set PATH and LD_LIBRARY_PATH. But is still gives me that error.

Finally I just typed:

sudo apt-get install mpich2

Afterwards, I can run the mpiexec without error.

Why did this happen?

When you say `which mpiexec`, does it give the correct path (the path to your custom 3.0.4 installation)? — Wesley Bland, Feb 07 '14 at 17:47
@WesleyBland Yes, Sir. I also type `which mpicc`, `which mpif90`, etc. But thanks for make some diagnose — Santosa Sandy, Feb 07 '14 at 18:18
And just to be sure, if you `echo $LD_LIBRARY_PATH`, the first directory is wherever your `/lib` is located? — Wesley Bland, Feb 07 '14 at 18:25
@WesleyBland It will give: `/mirror/mpich-3/lib:` And my instalation directory for mpi is `/mirror/mpich-3/` — Santosa Sandy, Feb 07 '14 at 18:37

Ketan Maheshwari · Accepted Answer · 2014-02-07T18:59:42.063

4

Assuming you are installing mpich 3 from source, you need to provide --enable-shared option while configuring in order to create an so, which is shared library. See section 2.6 of the guide you linked. An example from my config.log:

./configure --prefix=/home/kcm92/mpich3-install --enable-shared
make && make install

edited Feb 07 '14 at 18:59

answered Feb 07 '14 at 18:49

Ketan Maheshwari

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OK I did not read that Section. Thank you @Ketan – Santosa Sandy Feb 07 '14 at 18:54

Why I got error: `error while loading shared libraries: libmpich.so.3`?

1 Answers1