Manik Mayur wrote:
Hi,
I am trying to install GROMACS-4.0.5, but while making mpirun with the option --enable-mpi it gives the following sets of errors:

../gromacs-4.0.5/src/gmxlib/.libs/libgmx_mpi.so: undefined reference to `ah_find' ../gromacs-4.0.5/src/gmxlib/.libs/libgmx_mpi.so: undefined reference to `lam_ksignal' ../gromacs-4.0.5/src/gmxlib/.libs/libgmx_mpi.so: undefined reference to `lam_arr_append' ../gromacs-4.0.5/src/gmxlib/.libs/libgmx_mpi.so: undefined reference to `ah_delete' ../gromacs-4.0.5/src/gmxlib/.libs/libgmx_mpi.so: undefined reference to `lam_errorstr' ../gromacs-4.0.5/src/gmxlib/.libs/libgmx_mpi.so: undefined reference to `lam_ssi_cr_did' ../gromacs-4.0.5/src/gmxlib/.libs/libgmx_mpi.so: undefined reference to `lam_rtrnameget' ../gromacs-4.0.5/src/gmxlib/.libs/libgmx_mpi.so: undefined reference to `lam_mutex_trylock'
...................
...................

The important thing to note is that I have successfully compiled and installed mpi version of mdrun on the same machine, for GROMACS-4.0.4.
What am I missing here?

Probably you've changed/removed your MPI library between configure and make, or between versions of GROMACS, or something similar. Unpack a clean GROMACS tarball and start again with configure.

Mark
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