# # Copyright (c) 2009 Cisco Systems, Inc. All rights reserved. # $COPYRIGHT$ # # Additional copyrights may follow # # $HEADER$ # # This is the default system-wide MCA parameters defaults file. # Specifically, the MCA parameter "mca_param_files" defaults to a # value of # "$HOME/.openmpi/mca-params.conf:$sysconf/openmpi-mca-params.conf" # (this file is the latter of the two). So if the default value of # mca_param_files is not changed, this file is used to set system-wide # MCA parameters. This file can therefore be used to set system-wide # default MCA parameters for all users. Of course, users can override # these values if they want, but this file is an excellent location # for setting system-specific MCA parameters for those users who don't # know / care enough to investigate the proper values for them. # Note that this file is only applicable where it is visible (in a # filesystem sense). Specifically, MPI processes each read this file # during their startup to determine what default values for MCA # parameters should be used. mpirun does not bundle up the values in # this file from the node where it was run and send them to all nodes; # the default value decisions are effectively distributed. Hence, # these values are only applicable on nodes that "see" this file. If # $sysconf is a directory on a local disk, it is likely that changes # to this file will need to be propagated to other nodes. If $sysconf # is a directory that is shared via a networked filesystem, changes to # this file will be visible to all nodes that share this $sysconf. # The format is straightforward: one per line, mca_param_name = # rvalue. Quoting is ignored (so if you use quotes or escape # characters, they'll be included as part of the value). For example: # Disable run-time MPI parameter checking # mpi_param_check = 0 # Note that the value "~/" will be expanded to the current user's home # directory. For example: # Change component loading path # component_path = /usr/local/lib/openmpi:~/my_openmpi_components # See "ompi_info --param all all" for a full listing of Open MPI MCA # parameters available and their default values. # # Basic behavior to smooth startup orte_abort_timeout = 10 opal_set_max_sys_limits = 1 ## Add the interface for out-of-band communication ## and set it up #oob_tcp_listen_mode = listen_thread oob_tcp_sndbuf = 32768 oob_tcp_rcvbuf = 32768