MPI installation on Win 7/ 64 bit

The solution was to install the 32-bit version of MPICH2; both the version coming with Nonmem and the version from http://www.mcs.anl.gov/research/projects/mpich2/ work ok. I got many personal mails telling me that my 64-bit version of MPICH was not running. As I had noted, it was running mpiexec -hosts 2 localhost computername.exe DIETERPC DIETERPC but it did not play well with nonmem compiled with gfortran. Here the summary with MPICH for a short Bayes run (20 iterations) and an i7 with 4 real cores CPUs Time (s) 1 101 2 55 4 33 (50% CPU time) 8 35 (100% CPU time) So almost perfect scaling with 2 CPUs, and as I would expect no improvement beyond 4. The 100% CPU time indicated is simply bogus. Dieter > > I am trying to get the MPI feature in 7.2 running. > > -- My system: Window 7, 64 bit. German. Gfortran 4.6.0 > > -- All single-CPU tests work ok. > > -- File passing works ok: > > >>Nmfe72 foce_parallel.ctl foce_parallel.res -parafile=fpiwini8.pnm > [nodes]=4 > > Surprisingly slow (32 seconds vs. 3 seconds with one thread), but > never mind. > > -- Test if smpd/mpiexec is working (computername.exe in directory) > > >smpd -start > MPICH2 Daemon (C) 2003 Argonne National Lab started. > > >mpiexec -hosts 1 localhost computername.exe > DIETERPC > > ### Everything works ok up to here > > > > Nmfe72 foce_parallel.ctl foce_parallel.res -parafile=mpiwini8.pnm > [nodes]=4 > doing nmtran > > WARNINGS AND ERRORS (IF ANY) FOR PROBLEM 1 > > (WARNING 2) NM-TRAN INFERS THAT THE DATA ARE POPULATION. > CREATING MUMODEL ROUTINE... > 1 Datei(en) kopiert. > Finished compiling fsubs > > USING PARALLEL PROFILE mpiwini8.pnm > MPI TRANSFER TYPE SELECTED > Completed call to gfcompile.bat > Starting MPI version of nonmem execution ... > C:\tmp\test1\output konnte nicht gefunden warden (could not be found) > > ---- > All subdirectories are created ok, but the process returns immediately > with the above message. >