88 строки
2.7 KiB
C
88 строки
2.7 KiB
C
/* -*- C -*-
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*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/**
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* @file
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*
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* Name Discovery
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*
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* Since each launcher/environment can be different, the NDS provides a mechanism
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* by which writers of PLS launchers can provide the necessary corresponding logic
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* for process name discovery. Accordingly, each PLS MUST:
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*
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* - set the environmental parameter OMPI_MCA_ns_nds to indicate the
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* name discovery facility used by the launcher.
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*
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* - have a corresponding entry in the orte_ns_base_nds table (defined in
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* src/ns/base/ns_base_nds.c) that identifies the mode and its associated
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* function for obtaining the process name. This information is stored in an array
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* of orte_ns_base_nds_t structures - each of which contains the string name of the
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* mode (that must correspond exactly with the value of the environmental
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* parameter OMPI_MCA_ns_nds as set by the launcher) and a function pointer
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* to the necessary name discovery function.
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*
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* WARNING: Be sure to increment the orte_plsnds_max value so that the name discovery
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* subsystem will correctly search the entire array.
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*
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*/
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#ifndef ORTE_NS_BASE_NDS_H_
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#define ORTE_NS_BASE_NDS_H_
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#include "orte_config.h"
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#include "include/orte_types.h"
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#include "include/orte_constants.h"
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#include "mca/ns/ns_types.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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/*
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* Define the nds function pointer
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*/
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typedef int (*orte_ns_nds_fn_t)(void);
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/*
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* Define the nds structure
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*/
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typedef struct {
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char *mode;
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orte_ns_nds_fn_t discover;
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} orte_ns_nds_t;
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/*
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* Name discovery mechanisms
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*/
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int orte_ns_nds_env_get(void);
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int orte_ns_nds_env_put(const orte_process_name_t* proc,
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orte_vpid_t vpid_start, size_t num_procs,
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char ***environ);
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int orte_ns_nds_pipe_get(void);
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int orte_ns_nds_pipe_put(const orte_process_name_t* proc, orte_vpid_t vpid_start, size_t num_procs, int fd);
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int orte_ns_nds_bproc_get(void);
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int orte_ns_nds_bproc_put(orte_cellid_t cell, orte_jobid_t job,
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orte_vpid_t vpid_start, orte_vpid_t global_vpid_start,
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int num_procs, char ***env);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif /* ORTE_PLSNDS_H */
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