308 строки
10 KiB
C
308 строки
10 KiB
C
/*
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* Copyright (c) 2013 Mellanox Technologies, Inc.
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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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#ifndef MCA_SPML_H
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#define MCA_SPML_H
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#include "oshmem_config.h"
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#include "oshmem/types.h"
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#include "oshmem/constants.h"
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#include "opal/mca/mca.h"
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#include "oshmem/proc/proc.h"
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#include "ompi/mca/btl/btl.h"
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BEGIN_C_DECLS
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/*
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* SPML component types
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*/
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/**
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* MCA->PML Called by MCA framework to initialize the component.
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*
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* @param priority (OUT) Relative priority or ranking used by MCA to
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* selected a component.
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*
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* @param enable_progress_threads (IN) Whether this component is
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* allowed to run a hidden/progress thread or not.
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*
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* @param enable_mpi_threads (IN) Whether support for multiple MPI
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* threads is enabled or not (i.e., MPI_THREAD_MULTIPLE), which
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* indicates whether multiple threads may invoke this component
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* simultaneously or not.
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*/
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typedef enum {
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MCA_SPML_BASE_PUT_SYNCHRONOUS,
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MCA_SPML_BASE_PUT_COMPLETE,
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MCA_SPML_BASE_PUT_BUFFERED,
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MCA_SPML_BASE_PUT_READY,
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MCA_SPML_BASE_PUT_STANDARD,
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MCA_SPML_BASE_PUT_SIZE
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} mca_spml_base_put_mode_t;
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typedef struct mca_spml_base_module_1_0_0_t * (*mca_spml_base_component_init_fn_t)(int *priority,
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bool enable_progress_threads,
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bool enable_mpi_threads);
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typedef int (*mca_spml_base_component_finalize_fn_t)(void);
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/**
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* SPML component version and interface functions.
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*/
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struct mca_spml_base_component_2_0_0_t {
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mca_base_component_t spmlm_version;
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mca_base_component_data_t spmlm_data;
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mca_spml_base_component_init_fn_t spmlm_init;
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mca_spml_base_component_finalize_fn_t spmlm_finalize;
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};
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typedef struct mca_spml_base_component_2_0_0_t mca_spml_base_component_2_0_0_t;
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typedef mca_spml_base_component_2_0_0_t mca_spml_base_component_t;
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/**
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* MCA management functions.
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*/
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/**
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* memory key
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*/
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typedef struct mca_spml_mkey {
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union {
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struct {
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uint32_t rkey;
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uint32_t lkey;
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} ib;
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uint64_t key;
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};
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uint64_t va_base;
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void *spml_context; /* spml module can attach internal structures here */
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} mca_spml_mkey_t;
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/**
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* Downcall from MCA layer to enable the PML/BTLs.
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*
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* @param enable Enable/Disable SPML forwarding
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* @return OSHMEM_SUCCESS or failure status.
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*/
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typedef int (*mca_spml_base_module_enable_fn_t)(bool enable);
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/**
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* Waits for an int variable to change on the local PE.
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* Blocked until the variable is not equal to value.
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*
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* @param addr Address of the variable to pool on.
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* @param value The value to pool on. Pool until the value held in addr is different than value.
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* @return OSHMEM_SUCCESS or failure status.
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*/
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typedef int (*mca_spml_base_module_wait_fn_t)(void* addr,
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int cmp,
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void* value,
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int datatype);
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/**
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* Register (Pinn) a buffer of 'size' bits starting in address addr
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*
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* @param addr base address of the registered buffer.
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* @param size the size of the buffer to be registered.
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* @param seg_id sysv segment id
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* @param count number of internal transports (btls) that registered memory
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* @return array of mkeys (one mkey per "btl") or NULL on failure
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*
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*/
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typedef mca_spml_mkey_t * (*mca_spml_base_module_register_fn_t)(void *addr,
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size_t size,
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uint64_t shmid,
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int *count);
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/**
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* deregister memory pinned by register()
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*/
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typedef int (*mca_spml_base_module_deregister_fn_t)(mca_spml_mkey_t *mkeys);
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/**
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* try to fill up mkeys that can be used to reach remote pe.
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* @param pe remote pe
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* @param seg 0 - symmetric heap, 1 - static data, everything else are static data in .so
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* @param mkeys mkeys array
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*
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* @return OSHMEM_SUCCSESS if keys are found
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*/
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typedef int (*mca_spml_base_module_oob_get_mkeys_fn_t)(int pe,
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uint32_t seg,
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mca_spml_mkey_t *mkeys);
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/**
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* For each proc setup a datastructure that indicates the BTLs
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* that can be used to reach the destination.
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*
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* @param procs A list of all procs participating in the parallel application.
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* @param nprocs The number of procs in the parallel application.
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* @return OSHMEM_SUCCESS or failure status.
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*
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*/
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typedef int (*mca_spml_base_module_add_procs_fn_t)(oshmem_proc_t** procs,
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size_t nprocs);
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typedef int (*mca_spml_base_module_del_procs_fn_t)(oshmem_proc_t** procs,
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size_t nprocs);
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/**
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* Transfer data to a remote pe.
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*
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* @param dst_addr The address in the remote PE of the object being written.
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* @param size The number of bytes to be written.
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* @param src_addr An address on the local PE holdng the value to be written.
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* @param dst The remote PE to be written to.
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* @return OSHMEM_SUCCESS or failure status.
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*/
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typedef int (*mca_spml_base_module_put_fn_t)(void *dst_addr,
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size_t size,
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void *src_addr,
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int dst);
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/**
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* These routines provide the means for copying contiguous data to another PE without
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* blocking the caller. These routines return before the data has been delivered to the
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* remote PE.
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*
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* @param dst_addr The address in the remote PE of the object being written.
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* @param size The number of bytes to be written.
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* @param src_addr An address on the local PE holdng the value to be written.
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* @param dst The remote PE to be written to.
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* @param handle The address of a handle to be passed to shmem_wait_nb() or
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* shmem_test_nb() to wait or poll for the completion of the transfer.
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* @return OSHMEM_SUCCESS or failure status.
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*/
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typedef int (*mca_spml_base_module_put_nb_fn_t)(void *dst_addr,
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size_t size,
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void *src_addr,
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int dst,
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void **handle);
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/**
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* Blocking data transfer from remote PE.
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* Read data from remote PE.
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*
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* @param dst_addr - The address on the local PE, to write the result of the get operation to.
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* @param size - The number of bytes to be read.
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* @param src_addr - The address on the remote PE, to read from.
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* @param src - The ID of the remote PE.
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* @return - OSHMEM_SUCCESS or failure status.
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*/
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typedef int (*mca_spml_base_module_get_fn_t)(void *dst_addr,
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size_t size,
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void *src_addr,
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int src);
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/**
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* Post a receive and wait for completion.
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*
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* @param buf (IN) User buffer.
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* @param count (IN) The number of bytes to be sent.
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* @param src (IN) The ID of the remote PE.
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* @return OSHMEM_SUCCESS or failure status.
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*/
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typedef int (*mca_spml_base_module_recv_fn_t)(void *buf, size_t count, int src);
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/**
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* Post a send request and wait for completion.
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*
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* @param buf (IN) User buffer.
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* @param count (IN) The number of bytes to be sent.
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* @param dst (IN) The ID of the remote PE.
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* @param mode (IN) Send mode (STANDARD,BUFFERED,SYNCHRONOUS,READY)
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* @return OSHMEM_SUCCESS or failure status.
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*/
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typedef int (*mca_spml_base_module_send_fn_t)(void *buf,
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size_t count,
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int dst,
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mca_spml_base_put_mode_t mode);
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/**
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* Wait for completion of all outstanding put() requests
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*
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* @return - OSHMEM_SUCCESS or failure status.
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*/
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typedef int (*mca_spml_base_module_fence_fn_t)(void);
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/**
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* Waits for completion of a non-blocking put or get issued by the calling PE.
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*
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* @return - OSHMEM_SUCCESS or failure status.
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*/
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typedef int (*mca_spml_base_module_wait_nb_fn_t)(void*);
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typedef void* (*mca_spml_base_module_get_remote_context_fn_t)(void*);
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typedef void (*mca_spml_base_module_set_remote_context_fn_t)(void**, void*);
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typedef int (*mca_spml_base_module_get_remote_context_size_fn_t)(void*);
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typedef void (*mca_spml_base_module_set_remote_context_size_fn_t)(void**, int);
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/**
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* SPML instance.
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*/
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struct mca_spml_base_module_1_0_0_t {
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mca_spml_base_module_add_procs_fn_t spml_add_procs;
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mca_spml_base_module_del_procs_fn_t spml_del_procs;
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mca_spml_base_module_enable_fn_t spml_enable;
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mca_spml_base_module_register_fn_t spml_register;
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mca_spml_base_module_deregister_fn_t spml_deregister;
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mca_spml_base_module_oob_get_mkeys_fn_t spml_oob_get_mkeys;
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mca_spml_base_module_put_fn_t spml_put;
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mca_spml_base_module_put_nb_fn_t spml_put_nb;
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mca_spml_base_module_get_fn_t spml_get;
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mca_spml_base_module_recv_fn_t spml_recv;
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mca_spml_base_module_send_fn_t spml_send;
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mca_spml_base_module_wait_fn_t spml_wait;
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mca_spml_base_module_wait_nb_fn_t spml_wait_nb;
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mca_spml_base_module_fence_fn_t spml_fence;
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mca_spml_base_module_get_remote_context_fn_t spml_get_remote_context;
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mca_spml_base_module_set_remote_context_fn_t spml_set_remote_context;
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mca_spml_base_module_get_remote_context_size_fn_t spml_get_remote_context_size;
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mca_spml_base_module_set_remote_context_size_fn_t spml_set_remote_context_size;
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void *self;
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};
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typedef struct mca_spml_base_module_1_0_0_t mca_spml_base_module_1_0_0_t;
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typedef mca_spml_base_module_1_0_0_t mca_spml_base_module_t;
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/*
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* Macro for use in components that are of type spml
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*/
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#define MCA_SPML_BASE_VERSION_2_0_0 \
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MCA_BASE_VERSION_2_0_0, \
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"spml", 2, 0, 0
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/*
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* macro for doing direct call / call through struct
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*/
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#if MCA_oshmem_spml_DIRECT_CALL
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#include MCA_oshmem_spml_DIRECT_CALL_HEADER
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#define MCA_SPML_CALL_STAMP(a, b) mca_spml_ ## a ## _ ## b
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#define MCA_SPML_CALL_EXPANDER(a, b) MCA_SPML_CALL_STAMP(a,b)
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#define MCA_SPML_CALL(a) MCA_SPML_CALL_EXPANDER(MCA_oshmem_spml_DIRECT_CALL_COMPONENT, a)
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#else
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#define MCA_SPML_CALL(a) mca_spml.spml_ ## a
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#endif
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OSHMEM_DECLSPEC extern mca_spml_base_module_t mca_spml;
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END_C_DECLS
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#endif /* MCA_SPML_H */
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