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openmpi/ompi/mca/btl/template/btl_template.h
Brian Barrett acce172a87 * after checking with Tim, add MCA_BTL_TAG_MAX constant - avoid having to
hard code 256 into all the module structs.
* Update template btl to match change

This commit was SVN r6348.
2005-07-05 14:03:49 +00:00

312 строки
8.4 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* 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
*/
#ifndef MCA_PTL_TEMPLATE_H
#define MCA_PTL_TEMPLATE_H
/* Standard system includes */
#include <sys/types.h>
#include <string.h>
/* Open MPI includes */
#include "class/ompi_free_list.h"
#include "class/ompi_bitmap.h"
#include "opal/event/event.h"
#include "mca/pml/pml.h"
#include "mca/btl/btl.h"
#include "mca/btl/base/base.h"
#include "opal/util/output.h"
#include "mca/mpool/mpool.h"
#include "mca/btl/btl.h"
#if defined(c_plusplus) || defined(__cplusplus)
extern "C" {
#endif
#define MCA_BTL_HAS_MPOOL 1
/**
* Infiniband (TEMPLATE) BTL component.
*/
struct mca_btl_template_component_t {
mca_btl_base_component_1_0_0_t super; /**< base BTL component */
uint32_t template_num_btls;
/**< number of hcas available to the TEMPLATE component */
struct mca_btl_template_module_t *template_btls;
/**< array of available BTL modules */
int template_free_list_num;
/**< initial size of free lists */
int template_free_list_max;
/**< maximum size of free lists */
int template_free_list_inc;
/**< number of elements to alloc when growing free lists */
opal_list_t template_procs;
/**< list of template proc structures */
opal_mutex_t template_lock;
/**< lock for accessing module state */
char* template_mpool_name;
/**< name of memory pool */
bool leave_pinned;
/**< pin memory on first use and leave pinned */
};
typedef struct mca_btl_template_component_t mca_btl_template_component_t;
extern mca_btl_template_component_t mca_btl_template_component;
/**
* BTL Module Interface
*/
struct mca_btl_template_module_t {
mca_btl_base_module_t super; /**< base BTL interface */
mca_btl_base_recv_reg_t template_reg[MCA_BTL_TAG_MAX];
/* free list of fragment descriptors */
ompi_free_list_t template_frag_eager;
ompi_free_list_t template_frag_max;
ompi_free_list_t template_frag_user;
/* lock for accessing module state */
opal_mutex_t template_lock;
#if MCA_BTL_HAS_MPOOL
struct mca_mpool_base_module_t* template_mpool;
#endif
};
typedef struct mca_btl_template_module_t mca_btl_template_module_t;
extern mca_btl_template_module_t mca_btl_template_module;
/**
* Register TEMPLATE component parameters with the MCA framework
*/
extern int mca_btl_template_component_open(void);
/**
* Any final cleanup before being unloaded.
*/
extern int mca_btl_template_component_close(void);
/**
* TEMPLATE component initialization.
*
* @param num_btl_modules (OUT) Number of BTLs returned in BTL array.
* @param allow_multi_user_threads (OUT) Flag indicating wether BTL supports user threads (TRUE)
* @param have_hidden_threads (OUT) Flag indicating wether BTL uses threads (TRUE)
*/
extern mca_btl_base_module_t** mca_btl_template_component_init(
int *num_btl_modules,
bool allow_multi_user_threads,
bool have_hidden_threads
);
/**
* TEMPLATE component progress.
*/
extern int mca_btl_template_component_progress(void);
/**
* Cleanup any resources held by the BTL.
*
* @param btl BTL instance.
* @return OMPI_SUCCESS or error status on failure.
*/
extern int mca_btl_template_finalize(
struct mca_btl_base_module_t* btl
);
/**
* PML->BTL notification of change in the process list.
*
* @param btl (IN)
* @param nprocs (IN) Number of processes
* @param procs (IN) Set of processes
* @param peers (OUT) Set of (optional) peer addressing info.
* @param peers (IN/OUT) Set of processes that are reachable via this BTL.
* @return OMPI_SUCCESS or error status on failure.
*
*/
extern int mca_btl_template_add_procs(
struct mca_btl_base_module_t* btl,
size_t nprocs,
struct ompi_proc_t **procs,
struct mca_btl_base_endpoint_t** peers,
ompi_bitmap_t* reachable
);
/**
* PML->BTL notification of change in the process list.
*
* @param btl (IN) BTL instance
* @param nproc (IN) Number of processes.
* @param procs (IN) Set of processes.
* @param peers (IN) Set of peer data structures.
* @return Status indicating if cleanup was successful
*
*/
extern int mca_btl_template_del_procs(
struct mca_btl_base_module_t* btl,
size_t nprocs,
struct ompi_proc_t **procs,
struct mca_btl_base_endpoint_t** peers
);
/**
* Initiate an asynchronous send.
*
* @param btl (IN) BTL module
* @param endpoint (IN) BTL addressing information
* @param descriptor (IN) Description of the data to be transfered
* @param tag (IN) The tag value used to notify the peer.
*/
extern int mca_btl_template_send(
struct mca_btl_base_module_t* btl,
struct mca_btl_base_endpoint_t* btl_peer,
struct mca_btl_base_descriptor_t* descriptor,
mca_btl_base_tag_t tag
);
/**
* Initiate an asynchronous put.
*
* @param btl (IN) BTL module
* @param endpoint (IN) BTL addressing information
* @param descriptor (IN) Description of the data to be transferred
*/
extern int mca_btl_template_put(
struct mca_btl_base_module_t* btl,
struct mca_btl_base_endpoint_t* btl_peer,
struct mca_btl_base_descriptor_t* decriptor
);
/**
* Initiate an asynchronous get.
*
* @param btl (IN) BTL module
* @param endpoint (IN) BTL addressing information
* @param descriptor (IN) Description of the data to be transferred
*/
extern int mca_btl_template_get(
struct mca_btl_base_module_t* btl,
struct mca_btl_base_endpoint_t* btl_peer,
struct mca_btl_base_descriptor_t* decriptor
);
/**
* Register a callback function that is called on receipt
* of a fragment.
*
* @param btl (IN) BTL module
* @return Status indicating if registration was successful
*
*/
extern int mca_btl_template_register(
struct mca_btl_base_module_t* btl,
mca_btl_base_tag_t tag,
mca_btl_base_module_recv_cb_fn_t cbfunc,
void* cbdata);
/**
* Allocate a descriptor with a segment of the requested size.
* Note that the BTL layer may choose to return a smaller size
* if it cannot support the request.
*
* @param btl (IN) BTL module
* @param size (IN) Request segment size.
*/
extern mca_btl_base_descriptor_t* mca_btl_template_alloc(
struct mca_btl_base_module_t* btl,
size_t size);
/**
* Return a segment allocated by this BTL.
*
* @param btl (IN) BTL module
* @param descriptor (IN) Allocated descriptor.
*/
extern int mca_btl_template_free(
struct mca_btl_base_module_t* btl,
mca_btl_base_descriptor_t* des);
/**
* Prepare a descriptor for send/rdma using the supplied
* convertor. If the convertor references data that is contigous,
* the descriptor may simply point to the user buffer. Otherwise,
* this routine is responsible for allocating buffer space and
* packing if required.
*
* @param btl (IN) BTL module
* @param endpoint (IN) BTL peer addressing
* @param convertor (IN) Data type convertor
* @param reserve (IN) Additional bytes requested by upper layer to precede user data
* @param size (IN/OUT) Number of bytes to prepare (IN), number of bytes actually prepared (OUT)
*/
mca_btl_base_descriptor_t* mca_btl_template_prepare_src(
struct mca_btl_base_module_t* btl,
struct mca_btl_base_endpoint_t* peer,
struct mca_mpool_base_registration_t*,
struct ompi_convertor_t* convertor,
size_t reserve,
size_t* size
);
extern mca_btl_base_descriptor_t* mca_btl_template_prepare_dst(
struct mca_btl_base_module_t* btl,
struct mca_btl_base_endpoint_t* peer,
struct mca_mpool_base_registration_t*,
struct ompi_convertor_t* convertor,
size_t reserve,
size_t* size);
#if defined(c_plusplus) || defined(__cplusplus)
}
#endif
#endif