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openmpi/orte/mca/rmaps/load_balance/rmaps_lb.h
Ralph Castain 1dc12046f1 Modify the OMPI paffinity and mapping system to support socket-level mapping and binding. Mostly refactors existing code, with modifications to the odls_default module to support the new capabilities.
Adds several new mpirun options:

* -bysocket - assign ranks on a node by socket. Effectively load balances the procs assigned to a node across the available sockets. Note that ranks can still be bound to a specific core within the socket, or to the entire socket - the mapping is independent of the binding.

* -bind-to-socket - bind each rank to all the cores on the socket to which they are assigned.

* -bind-to-core - currently the default behavior (maintained from prior default)

* -npersocket N - launch N procs for every socket on a node. Note that this implies we know how many sockets are on a node. Mpirun will determine its local values. These can be overridden by provided values, either via MCA param or in a hostfile

Similar features/options are provided at the board level for multi-board nodes.

Documentation to follow...

This commit was SVN r21791.
2009-08-11 02:51:27 +00:00

38 строки
1.0 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*
* Resource Mapping
*/
#ifndef ORTE_RMAPS_LB_H
#define ORTE_RMAPS_LB_H
#include "orte_config.h"
#include "orte/mca/rmaps/rmaps.h"
BEGIN_C_DECLS
ORTE_MODULE_DECLSPEC extern orte_rmaps_base_component_t mca_rmaps_load_balance_component;
extern orte_rmaps_base_module_t orte_rmaps_load_balance_module;
END_C_DECLS
#endif