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openmpi/ompi/mca/btl/elan/btl_elan_proc.h
George Bosilca 6310ce955c The first patch related to the Active Message stuff. So far, here is what we have:
- the registration array is now global instead of one by BTL.
- each framework have to declare the entries in the registration array reserved. Then
  it have to define the internal way of sharing (or not) these entries between all
  components. As an example, the PML will not share as there is only one active PML
  at any moment, while the BTLs will have to. The tag is 8 bits long, the first 3
  are reserved for the framework while the remaining 5 are use internally by each
  framework.
- The registration function is optional. If a BTL do not provide such function,
  nothing happens. However, in the case where such function is provided in the BTL
  structure, it will be called by the BML, when a tag is registered.

Now, it's time for the second step... Converting OB1 from a switch based PML to an
active message one.

This commit was SVN r17140.
2008-01-15 05:32:53 +00:00

62 строки
1.8 KiB
C

/*
* Copyright (c) 2004-2007 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef MCA_BTL_ELAN_PROC_H
#define MCA_BTL_ELAN_PROC_H
#include "orte/mca/ns/ns.h"
#include "opal/class/opal_object.h"
#include "ompi/proc/proc.h"
#include "btl_elan.h"
#include "btl_elan_endpoint.h"
BEGIN_C_DECLS
/**
* Represents the state of a remote process and the set of addresses
* that it exports. Also cache an instance of mca_btl_base_endpoint_t for
* each
* BTL instance that attempts to open a connection to the process.
*/
struct mca_btl_elan_proc_t {
opal_list_item_t super;
/**< allow proc to be placed on a list */
ompi_proc_t *proc_ompi;
/**< pointer to corresponding ompi_proc_t */
orte_process_name_t proc_guid;
/**< globally unique identifier for the process */
unsigned int *elan_vp_array;
size_t proc_addr_count;
/**< number of addresses published by endpoint */
struct mca_btl_base_endpoint_t **proc_endpoints;
/**< array of endpoints that have been created to access this proc */
size_t proc_endpoint_count;
/**< number of endpoints */
opal_mutex_t proc_lock;
/**< lock to protect against concurrent access to proc state */
};
typedef struct mca_btl_elan_proc_t mca_btl_elan_proc_t;
OBJ_CLASS_DECLARATION(mca_btl_elan_proc_t);
mca_btl_elan_proc_t* mca_btl_elan_proc_create(ompi_proc_t* ompi_proc);
int mca_btl_elan_proc_insert(mca_btl_elan_proc_t*, mca_btl_base_endpoint_t*);
END_C_DECLS
#endif /* MCA_BTL_ELAN_PROC_H */