# # Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana # University Research and Technology # Corporation. All rights reserved. # Copyright (c) 2004-2005 The University of Tennessee and The University # of Tennessee Research Foundation. All rights # reserved. # Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, # University of Stuttgart. All rights reserved. # Copyright (c) 2004-2005 The Regents of the University of California. # All rights reserved. # Copyright (c) 2006 Cisco Systems, Inc. All rights reserved. # Copyright (c) 2011 Los Alamos National Security, LLC. # 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 mca_component_show_load_errors = 0 orte_abort_timeout = 10 opal_set_max_sys_limits = 1 # Define timeout for daemons to report back during launch orte_startup_timeout = 1000 ## Protect the shared file systems orte_no_session_dirs = /panfs,/scratch,/users,/usr/projects orte_tmpdir_base = /tmp ## Require an allocation to run - protects the frontend ## from inadvertent job executions orte_allocation_required = 1 # Output a brief periodic report on launch progress orte_report_launch_progress = 1 ## MPI behavior ## Do NOT specify mpi_leave_pinned so system ## can figure out for itself whether or not ## it is supported and usable notifier = syslog ## Protect looped collectives coll_sync_priority = 100 coll_sync_barrier_before = 1000 ## Activate hierarchical collectives coll_hierarch_priority = 90 ## Add the interface for out-of-band communication ## and set it up oob_tcp_if_include=ib0 oob_tcp_peer_retries = 1000 oob_tcp_disable_family = IPv6 oob_tcp_listen_mode = listen_thread oob_tcp_sndbuf = 32768 oob_tcp_rcvbuf = 32768 ## Define the MPI interconnects btl = sm,openib,self ## Setup OpenIB btl_openib_want_fork_support = 0 btl_openib_cpc_include = oob btl_openib_flags = 2 btl_openib_max_btls = 1 btl_openib_receive_queues = S,4096,1024:S,12288,512:S,65536,512 btl_openib_cq_size = 16384 ## Enable cpu affinity hwloc_base_binding_policy = core ## Setup MPI options mpi_show_handle_leaks = 1 mpi_warn_on_fork = 1 mpi_abort_print_stack = 1