HP-MPI Version 1.2 for Windows Release Note

-restart restart an installed service
NOTE: All remote services must use the same port. If you are not using the default port, make
sure you select a port that is available on all remote nodes.
1.3.4 Upgrade Instructions
If HP-MPI is already installed, uninstall the existing version. This can be done with the clusrun
command by running the uninstall executable in MPI_ROOT with the /verysilent flag. The
uninstall executable name is generally the same on all nodes. However, be sure to examine the
output to verify all nodes uninstalled HP-MPI. Also, check that all files have been removed by
the uninstall as an added check.
To uninstall using clusrun, enter the following on one command line:
headnode> clusrun /all "C:\Program Files
(x86)\Hewlett-Packard\HP-MPI\unins000.exe" /verysilent
To verify all files have been deleted, enter the following on one command line:
headnode> clusrun /all dir "C:\Program Files
(x86)\Hewlett-Packard\HP-MPI"
The only files you should see are the licenses directories. If you see any other directories or
files, manually delete them. You might see a directory missed because a user was running HP-MPI
during the uninstall. It is common to see the uninstall .exe or .dat file not removed. Future
installs/uninstalls will be easier if you remove these before installing HP-MPI again.
To delete the unins000.exe, enter the following on one line:
headnode> clusrun /all del "C:\Program Files (x86)\Hewlett-Packard\HP-MPI
\unins000.exe"
When the HP-MPI directory is clean, you can proceed with installing the new version of HP-MPI.
1.4 Configuring Your Environment
The default install directory location for HP-MPI for Windows is one of the following directories:
On 64-bit Windows:
C:\Program Files (x86)\Hewlett-Packard\HP-MPI
On 32-bit Windows:
C:\Program Files\Hewlett-Packard\HP-MPI
The default install defines the system environment variable MPI_ROOT, but does not put
"%MPI_ROOT%\bin" in the system path or your user path.
If you choose to move the HP-MPI installation directory from its default location:
• Change the system environment variable MPI_ROOT to reflect the new location.
• You may need to add "%MPI_ROOT%\bin\mpirun.exe", "%MPI_ROOT%\bin\mpid.exe",
"%MPI_ROOT%\bin\mpidiag.exe", and "%MPI_ROOT%\bin\mpisrvutil.exe" to the
firewall exceptions depending on how your system is configured.
HP-MPI must be installed in the same directory on every execution host.
To determine the version of an HP-MPI installation, use the -version flag on the mpirun
command:
C:\> "%MPI_ROOT%\bin\mpirun" -version
1.4 Configuring Your Environment 15