NAME

       smpirun - Exectute MPI programs in the SimGrid simulator

SYNOPSIS

       smpirun  [SMPI  OPTIONS]…  -platform  <platform.xml>  -hostfile  <hostfile>  program [SIMULATION OPTIONS]
       [PROGRAM OPTIONS]

DESCRIPTION

       smpirun car run MPI programs that were compiled with smpicc  on  top  of  the  simulator.  Basically,  it
       generates a deployment files from the provided hostfile (if needed), and launches the simulation with the
       right arguments. It is intended to be easy to use to regular MPI users.

MANDATORY PARAMETERS

       -platform <platform.xml>
              XML file describing the platform on which we want to deploy the  program.   Please  refer  to  the
              online  documentation.  ⟨https://simgrid.org/doc/latest/Tutorial_MPI_Applications.html#describing-
              your-platform⟩

       -hostfile, -machinefile <hostfile>
              Hostfile listing all the machines in use

SMPI OPTIONS

       The smpirun itself accepts some optional parameters, that are not to  be  mixed  with  the  configuration
       options described in the next section.

       -help  Print the usage and a summary of the available options.

       -keep-temps
              Do not remove the generated files after execution.

       -wrapper <command>
              Use  command to run the program (e.g. "valgrind", "gdb --args", "rr record").  You usually want to
              use the "-foreground" option as well in order to have a TTY.

       -foreground
              Run the child process in the foreground.  This gives the child process access to the TTY.

       -map   Display the machine on which each process rank is mapped.

       -np <numprocs>
              Use that amount of processes. By default, there is the same number of processes as  there  are  of
              hosts in the hostfile.

       -no-privatize
              Disable the globals privatization, that is activated by default.  This should only be necessary if
              you use dynamic libraries, but you should probably link statically instead of disabling  this.  Do
              not link statically against SimGrid, only the others.

       -trace Activate the trace mechanism if available (equivalent to --cfg=tracing:yes --cfg=tracing/smpi:yes)

       -trace-ti
              Activate time independent tracing.

       -trace-comment <comment>
              Put a comment on the top of the trace file.

       -trace-comment-file <file>
              Insert the content of the file at the head of the trace file as a comment.

       -trace-grouped
              Group MPI processes by location.

       -trace-resource
              Trace resource utilization.

       -trace-file <tracefile>
              Name of the tracefile

       -quiet Reduce output verbosity. This is useful to make tests reproducible.

SIMULATION OPTIONS

       You  can  change many simulation parameter on the command line by passing --cfg=parameter:value after the
       program  name.   A  full  list  of  existing   parameters   and   their   meaning   can   be   found   at
       https://simgrid.org/doc/latest/Configuring_SimGrid.html

       Here are some options commonly used with SMPI:

       --cfg=smpi/cpu-threshold:XXX
              Only simulate computation chunks that last more than XXX seconds.

       --cfg=smpi/simulate-computation:no
              Disable the simulation of all computation chunks (that are still executed on the host machine).

AUTHORS

       The SimGrid team (simgrid-devel@lists.gforge.inria.fr)

COPYRIGHT AND LICENCE

       Copyright (c) 2014-2019. The SimGrid Team. All rights reserved.

       This  program  is  free  software;  you  may redistribute it and/or modify it under the terms of GNU LGPL
       (v2.1) license.

SEE ALSO

       smpicc(1) smpicxx(1) smpiff(1) smpif90(1)

                                                                                                      smpirun(1)