--with-mpi

[bjoo]

Hi Guys,
--with-mpi on the configure script appears to be overloaded. I originally specified it to point to the location of the MPI distro which was used to compile QMP programs. It has now been overloaded to also define -DUSE_MPI (to select MPI vs QMP comms harness). This is bad because it is natural to have --with-qmp= --with-mpi= set together for a normal QMP build, and this will add -DQMP_COMMS and -DMPI_COMMS on the command line.

We should find a way around. How about

--with-qmp= sets -DQMP_COMMS
--with-mpi= sets -DMPI_COMMS
--with-mpihome= sets MPI_HOME, but not -DMPI_COMMS

Thoughts?

[gshi]

Sounds good to me. Please go ahead and implement it.

[bjoo]

RESOLVED: Now with --with-mpi= on its own means "define -DMPI_COMMS and build for MPI using the MPI in ".

--with-qmp= together with --with-mpi= means: "define -DQMP_COMMS and build for QMP, but using the mpicc, mpirun etc in "

[gshi]

That's more intuitive, better solution. Thanks

[rbabich]

Agreed. I like this.