mpirun is a .NET Assembly. It is used to launch MPI and non-MPI
processes on local and remote computers.
How do you specify the machines on which your program will be run?
The simplest way is to call vsched -m. This command will produce a file called
machines, which consists of a list of the machines your batch job
has allocated. If a machines file is produced, do not use the -mach_file
and -pg_file parameters for mpirun.
-
ctc001.tc.cornell.edu 4 demo.exe
- ctc002.tc.cornell.edu 3 demoSub.exe
- ctc003.tc.cornell.edu
2 demoSub2.exe
-np specifies the number of tasks to run
-wd specifies the working directory to be used by the MPI processes.
-h | -help displays the command line arguments for mpirun
-verbose prints verbose output for debugging purposes
-mpi_debug invokes extra checks on the input parameters and extra output
if errors occur at runtime.
-mpi_verbose switch to verbose output mode for the MPI/Pro application. This
information is different from that produced by the -verbose flag.
Example: mpirun -np 4 myexecutable.exe
In this example, the machines file and executable
must be in the directory in which you issue the mpirun command.
