NAME

       mpiexec.slurm - Run an MPI program under Slurm

SYNOPSIS

       mpiexec.slurm args executable pgmargs

       where args are comannd line arguments for mpiexec (see below), executable is the name of
       the eecutable and pgmargs are command line arguments for the executable. For example the
       following command will run the MPI program a.out on 4 processes:

               mpiexec.slurm -n 4 a.out

       mpiexec.slurm supports the following options:

                [-n nprocs]
                [-host hostname]
                [-verbose]
                [-nostdin]
                [-allstdin]
                [-nostdout]
                [-pernode]
                [-config config_file]
                [-help|-?]
                [-man]

DESCRIPTION

       The mpiexec.slurm

OPTIONS

       -n <np>
           Specify the number of processes to use

       -host hostname
           Name of host on which to run processes

       -verbose
           Increase the verbosity of mpiexec.slurm informational messages. Multiple -verbose's
           will further increase mpiexec.slurm's verbosity. By default only errors will be
           displayed.

       -nostdin
           Do not connect the standard input stream of process 0 to the mpiexec process.  If the
           process attempts to read from stdin, it will see an end-of-file.

       -allstdin
           Send the standard input stream of mpiexec.slurm to all processes. Each character typed
           to mpiexec (or read from a file) is duplicated numproc times, and sent to each
           process. This permits every process to read, for example, configuration information
           from the input stream.

       -nostdout
           Do not connect the standard output and error streams of each process back to the
           mpiexec.slurm process. Standard output and error will be respectively writte in files
           of the form job.ojobid and job.ejobid for batch jobs, and directly to the controlling
           terminal for interactive jobs.

       -pernode
           Allocate only one process per compute node. For SMP nodes, only one processor will be
           allocated a job. This flag is used to implement multiple level parallelism with MPI
           between nodes, and threads within a node, assmuming the code is set up to do that.

       -config <config_file>
           Process executable and arguments are specified in the given configuration file.  This
           flag permits the use of heterogeneous jobs using multiple executables. No executable
           is given on the command line when using the -config flag. If config_file is "-", then
           the configuration is read from standard input. In this case the flag -nostdin is
           mandatory, as it is not possible to separate the contents of the configuration file
           from process input. The config_file can contain lines beginning with "#", that are
           considered comments and ignored and and one or more lines with the following format:

                   -n XX : executable [args]

           where XX is the number of processes to be used, executable is the name of the program
           to run and args are its arguments. For example:

                   # Sample mpiexec config file
                   # Launch two instance of foo
                   -n 2 : foo
                   # and three instances of bar
                   -n 3 bar

           There is no support for hostname task layout in a config file at the moment.

       -help|-?
           Display a brief help page