Error loading MPI DLL in mpi4py

Question

I am trying to use Mpi4py 1.3 with python 2.7 on Windows 7 64bits. I downloaded the installable version from here which includes OpenMPI 1.6.3 so in the installed directory

Answer 1

For anyone who gets this error "from mpi4py import MPI ImportError: DLL load failed: The specified procedure could not be found." i solved it by downgrade the MSMPI to V10.0 it did not work with V10.2. And use MPISdk V8.0 you have to uninstall the MSMPI that you have it now and install V10.0 from this link MSMPIV10.0 It does not accept to install new version without uninstalling the old one, hopefully it's gonna work