SYNOPSIS
mpirun [MPI OPTIONS] ltsmin-reduce-dist [OPTIONS] <input> [<output>]
DESCRIPTION
Using the option --workers=N, this tool starts the command mpirun silently in the background with the suitable options, i.e. -np 4. Alternatively, one may wish to call mpirun with additional options. This can be done using the --mpi option, e.g.:
mpirun -np 4 -mca btl tcp,self {manname} --mpiOPTIONS
LTS I/O Options
- --block-size=BYTES
-
Size of a block in bytes. Defaults to 32,768.
- --cluster-size=BLOCKS
-
Number of blocks in a cluster. Defaults to 32.
Hybrid Runtime Options
The Hybrid Runtime Environment provides startup options for several parallel architectures.
Posix threads options
If the application supports it and Posix threads are supported by the OS then the following option is available:
- --threads[=count]
-
Start count worker threads. The default count is the number of CPU’s in the system.
Posix processes options
If the application supports it and Posix shared memory is supported by the OS then the following option is available:
- --procs[=count]
-
Fork count worker processes. The default count is the number of CPUs in the system.
Note that MacOS X only supports Posix shared memory from version 10.7 (Lion) onwards.
MPI options
If the application supports it and MPI support was compiled into the binary then the following options are available:
- --workers=count
-
Start the program with count MPI workers.
- --mpirun=mpirun arguments
-
Invoke mpirun with the given arguments.
- --mpi
-
Ignore --workers and --mpirun options and start the MPI runtime.
General Options
- -v
-
Increase the level of verbosity
- -q
-
Be quiet; do not print anything to the terminal.
- --debug=file
-
Enable debugging output for file.
- --version
-
Print version string of this tool.
- -h, --help
-
Print help text
- --usage
-
Print short usage summary.
- --stats
-
Enable statistics gathering/printing.
- --timeout=INT
-
Terminate after the given amount of seconds.
- --where
-
Include file and line number in debug messages.
- --when
-
Include the wall time since program start in all messages.