mpid_rma.c 16.6 KB
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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
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/*
 *  (C) 2001 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */

#include "mpidimpl.h"
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#include "mpidrma.h"
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/*
=== BEGIN_MPI_T_CVAR_INFO_BLOCK ===

cvars:
    - name        : MPIR_CVAR_CH3_RMA_SLOTS_SIZE
      category    : CH3
      type        : int
      default     : 262144
      class       : none
      verbosity   : MPI_T_VERBOSITY_USER_BASIC
      scope       : MPI_T_SCOPE_ALL_EQ
      description : >-
        Number of RMA slots during window creation. Each slot contains
        a linked list of target elements. The distribution of ranks among
        slots follows a round-robin pattern. Requires a positive value.

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    - name        : MPIR_CVAR_CH3_RMA_LOCK_DATA_BYTES
      category    : CH3
      type        : int
      default     : 655360
      class       : none
      verbosity   : MPI_T_VERBOSITY_USER_BASIC
      scope       : MPI_T_SCOPE_ALL_EQ
      description : >-
        Size (in bytes) of available lock data this window can provided. If
        current buffered lock data is more than this value, the process will
        drop the upcoming operation data. Requires a positive calue.

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=== END_MPI_T_CVAR_INFO_BLOCK ===
*/

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MPIU_THREADSAFE_INIT_DECL(initRMAoptions);

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MPIDI_RMA_Win_list_t *MPIDI_RMA_Win_list = NULL, *MPIDI_RMA_Win_list_tail = NULL;

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static int win_init(MPI_Aint size, int disp_unit, int create_flavor, int model,
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                    MPID_Comm * comm_ptr, MPID_Win ** win_ptr);
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#define MPID_WIN_FTABLE_SET_DEFAULTS(win_ptr)                   \
    do {                                                        \
        /* Get ptr to RMAFns, which is embedded in MPID_Win */  \
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        MPID_RMAFns *ftable         = &(*(win_ptr))->RMAFns;    \
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        ftable->Win_free            = MPIDI_Win_free;           \
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        ftable->Win_attach          = MPIDI_Win_attach;         \
        ftable->Win_detach          = MPIDI_Win_detach;         \
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        ftable->Win_shared_query    = MPIDI_Win_shared_query;   \
                                                                \
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        ftable->Win_set_info        = MPIDI_Win_set_info;       \
        ftable->Win_get_info        = MPIDI_Win_get_info;       \
                                                                \
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        ftable->Put                 = MPIDI_Put;                \
        ftable->Get                 = MPIDI_Get;                \
        ftable->Accumulate          = MPIDI_Accumulate;         \
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        ftable->Get_accumulate      = MPIDI_Get_accumulate;     \
        ftable->Fetch_and_op        = MPIDI_Fetch_and_op;       \
        ftable->Compare_and_swap    = MPIDI_Compare_and_swap;   \
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                                                                \
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        ftable->Rput                = MPIDI_Rput;               \
        ftable->Rget                = MPIDI_Rget;               \
        ftable->Raccumulate         = MPIDI_Raccumulate;        \
        ftable->Rget_accumulate     = MPIDI_Rget_accumulate;    \
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                                                                \
        ftable->Win_fence           = MPIDI_Win_fence;          \
        ftable->Win_post            = MPIDI_Win_post;           \
        ftable->Win_start           = MPIDI_Win_start;          \
        ftable->Win_complete        = MPIDI_Win_complete;       \
        ftable->Win_wait            = MPIDI_Win_wait;           \
        ftable->Win_test            = MPIDI_Win_test;           \
                                                                \
        ftable->Win_lock            = MPIDI_Win_lock;           \
        ftable->Win_unlock          = MPIDI_Win_unlock;         \
        ftable->Win_lock_all        = MPIDI_Win_lock_all;       \
        ftable->Win_unlock_all      = MPIDI_Win_unlock_all;     \
                                                                \
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        ftable->Win_flush           = MPIDI_Win_flush;          \
        ftable->Win_flush_all       = MPIDI_Win_flush_all;      \
        ftable->Win_flush_local     = MPIDI_Win_flush_local;    \
        ftable->Win_flush_local_all = MPIDI_Win_flush_local_all;\
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        ftable->Win_sync            = MPIDI_Win_sync;           \
    } while (0)


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#undef FUNCNAME
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#define FUNCNAME MPID_Win_create
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#undef FCNAME
#define FCNAME MPIDI_QUOTE(FUNCNAME)
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int MPID_Win_create(void *base, MPI_Aint size, int disp_unit, MPID_Info * info,
                    MPID_Comm * comm_ptr, MPID_Win ** win_ptr)
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{
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    int mpi_errno = MPI_SUCCESS;
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    MPIDI_STATE_DECL(MPID_STATE_MPID_WIN_CREATE);
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    MPIDI_RMA_FUNC_ENTER(MPID_STATE_MPID_WIN_CREATE);

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    /* Check to make sure the communicator hasn't already been revoked */
    if (comm_ptr->revoked) {
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        MPIU_ERR_SETANDJUMP(mpi_errno, MPIX_ERR_REVOKED, "**revoked");
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    }

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    mpi_errno =
        win_init(size, disp_unit, MPI_WIN_FLAVOR_CREATE, MPI_WIN_UNIFIED, comm_ptr, win_ptr);
    if (mpi_errno)
        MPIU_ERR_POP(mpi_errno);
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    (*win_ptr)->base = base;

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    /* FOR CREATE, alloc_shm info is default to set to FALSE */
    (*win_ptr)->info_args.alloc_shm = FALSE;
    if (info != NULL) {
        int alloc_shm_flag = 0;
        char shm_alloc_value[MPI_MAX_INFO_VAL+1];
        MPIR_Info_get_impl(info, "alloc_shm", MPI_MAX_INFO_VAL, shm_alloc_value, &alloc_shm_flag);
        if ((alloc_shm_flag == 1) && (!strncmp(shm_alloc_value, "true", sizeof("true"))))
            (*win_ptr)->info_args.alloc_shm = TRUE;
    }

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    mpi_errno = MPIDI_CH3U_Win_fns.create(base, size, disp_unit, info, comm_ptr, win_ptr);
    if (mpi_errno)
        MPIU_ERR_POP(mpi_errno);
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  fn_fail:
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    MPIDI_FUNC_EXIT(MPID_STATE_MPID_WIN_CREATE);
    return mpi_errno;
}


#undef FUNCNAME
#define FUNCNAME MPID_Win_allocate
#undef FCNAME
#define FCNAME MPIDI_QUOTE(FUNCNAME)
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int MPID_Win_allocate(MPI_Aint size, int disp_unit, MPID_Info * info,
                      MPID_Comm * comm_ptr, void *baseptr, MPID_Win ** win_ptr)
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{
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    int mpi_errno = MPI_SUCCESS;
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    MPIDI_STATE_DECL(MPID_STATE_MPID_WIN_ALLOCATE);
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    MPIDI_RMA_FUNC_ENTER(MPID_STATE_MPID_WIN_ALLOCATE);

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    mpi_errno =
        win_init(size, disp_unit, MPI_WIN_FLAVOR_ALLOCATE, MPI_WIN_UNIFIED, comm_ptr, win_ptr);
    if (mpi_errno != MPI_SUCCESS) {
        MPIU_ERR_POP(mpi_errno);
    }
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    /* FOR ALLOCATE, alloc_shm info is default to set to TRUE */
    (*win_ptr)->info_args.alloc_shm = TRUE;

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    if (info != NULL) {
        int alloc_shm_flag = 0;
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        char shm_alloc_value[MPI_MAX_INFO_VAL + 1];
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        MPIR_Info_get_impl(info, "alloc_shm", MPI_MAX_INFO_VAL, shm_alloc_value, &alloc_shm_flag);
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        if ((alloc_shm_flag == 1) && (!strncmp(shm_alloc_value, "false", sizeof("false"))))
            (*win_ptr)->info_args.alloc_shm = FALSE;
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    }

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    mpi_errno = MPIDI_CH3U_Win_fns.allocate(size, disp_unit, info, comm_ptr, baseptr, win_ptr);
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    if (mpi_errno != MPI_SUCCESS) {
        MPIU_ERR_POP(mpi_errno);
    }
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  fn_fail:
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    MPIDI_FUNC_EXIT(MPID_STATE_MPID_WIN_ALLOCATE);
    return mpi_errno;
}


#undef FUNCNAME
#define FUNCNAME MPID_Win_create_dynamic
#undef FCNAME
#define FCNAME MPIDI_QUOTE(FUNCNAME)
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int MPID_Win_create_dynamic(MPID_Info * info, MPID_Comm * comm_ptr, MPID_Win ** win_ptr)
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{
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    int mpi_errno = MPI_SUCCESS;
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    MPIDI_STATE_DECL(MPID_STATE_MPID_WIN_CREATE_DYNAMIC);
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    MPIDI_RMA_FUNC_ENTER(MPID_STATE_MPID_WIN_CREATE_DYNAMIC);
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    mpi_errno = win_init(0 /* spec defines size to be 0 */ ,
                         1 /* spec defines disp_unit to be 1 */ ,
                         MPI_WIN_FLAVOR_DYNAMIC, MPI_WIN_UNIFIED, comm_ptr, win_ptr);
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    if (mpi_errno)
        MPIU_ERR_POP(mpi_errno);
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    (*win_ptr)->base = MPI_BOTTOM;

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    mpi_errno = MPIDI_CH3U_Win_fns.create_dynamic(info, comm_ptr, win_ptr);
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    if (mpi_errno != MPI_SUCCESS) {
        MPIU_ERR_POP(mpi_errno);
    }
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  fn_fail:
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    MPIDI_FUNC_EXIT(MPID_STATE_MPID_WIN_CREATE_DYNAMIC);
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    return mpi_errno;
}


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/* The memory allocation functions */
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#undef FUNCNAME
#define FUNCNAME MPID_Alloc_mem
#undef FCNAME
#define FCNAME MPIDI_QUOTE(FUNCNAME)
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void *MPID_Alloc_mem(size_t size, MPID_Info * info_ptr)
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{
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    void *ap = NULL;
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    MPIDI_STATE_DECL(MPID_STATE_MPID_ALLOC_MEM);

    MPIDI_FUNC_ENTER(MPID_STATE_MPID_ALLOC_MEM);

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    ap = MPIDI_Alloc_mem(size, info_ptr);
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    MPIDI_FUNC_EXIT(MPID_STATE_MPID_ALLOC_MEM);
    return ap;
}


#undef FUNCNAME
#define FUNCNAME MPID_Free_mem
#undef FCNAME
#define FCNAME MPIDI_QUOTE(FUNCNAME)
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int MPID_Free_mem(void *ptr)
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{
    int mpi_errno = MPI_SUCCESS;
    MPIDI_STATE_DECL(MPID_STATE_MPID_FREE_MEM);

    MPIDI_FUNC_ENTER(MPID_STATE_MPID_FREE_MEM);

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    mpi_errno = MPIDI_Free_mem(ptr);
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    if (mpi_errno != MPI_SUCCESS) {
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        MPIU_ERR_POP(mpi_errno);
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    }
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  fn_fail:
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    MPIDI_FUNC_EXIT(MPID_STATE_MPID_FREE_MEM);
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    return mpi_errno;
}

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#undef FUNCNAME
#define FUNCNAME MPID_Win_allocate_shared
#undef FCNAME
#define FCNAME MPIDI_QUOTE(FUNCNAME)
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int MPID_Win_allocate_shared(MPI_Aint size, int disp_unit, MPID_Info * info, MPID_Comm * comm_ptr,
                             void *base_ptr, MPID_Win ** win_ptr)
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{
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    int mpi_errno = MPI_SUCCESS;
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    MPIDI_STATE_DECL(MPID_STATE_MPID_WIN_ALLOCATE_SHARED);
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    MPIDI_RMA_FUNC_ENTER(MPID_STATE_MPID_WIN_ALLOCATE_SHARED);

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    mpi_errno =
        win_init(size, disp_unit, MPI_WIN_FLAVOR_SHARED, MPI_WIN_UNIFIED, comm_ptr, win_ptr);
    if (mpi_errno)
        MPIU_ERR_POP(mpi_errno);
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    /* FOR ALLOCATE_SHARED, alloc_shm info is default to set to TRUE */
    (*win_ptr)->info_args.alloc_shm = TRUE;

    if (info != NULL) {
        int alloc_shm_flag = 0;
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        char shm_alloc_value[MPI_MAX_INFO_VAL + 1];
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        MPIR_Info_get_impl(info, "alloc_shm", MPI_MAX_INFO_VAL, shm_alloc_value, &alloc_shm_flag);
        /* if value of 'alloc_shm' info is not set to true, throw an error */
        if (alloc_shm_flag == 1 && strncmp(shm_alloc_value, "true", sizeof("true")))
            MPIU_ERR_SETANDJUMP(mpi_errno, MPI_ERR_OTHER, "**infoval");
    }

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    mpi_errno =
        MPIDI_CH3U_Win_fns.allocate_shared(size, disp_unit, info, comm_ptr, base_ptr, win_ptr);
    if (mpi_errno != MPI_SUCCESS)
        MPIU_ERR_POP(mpi_errno);
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  fn_fail:
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    MPIDI_FUNC_EXIT(MPID_STATE_MPID_WIN_ALLOCATE_SHARED);
    return mpi_errno;
}
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#undef FUNCNAME
#define FUNCNAME win_init
#undef FCNAME
#define FCNAME MPIU_QUOTE(FUNCNAME)
static int win_init(MPI_Aint size, int disp_unit, int create_flavor, int model,
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                    MPID_Comm * comm_ptr, MPID_Win ** win_ptr)
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{
    int mpi_errno = MPI_SUCCESS;
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    int i;
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    MPID_Comm *win_comm_ptr;
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    int win_target_pool_size;
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    MPIDI_RMA_Win_list_t *win_elem;
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    MPIU_CHKPMEM_DECL(5);
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    MPIDI_STATE_DECL(MPID_STATE_WIN_INIT);

    MPIDI_FUNC_ENTER(MPID_STATE_WIN_INIT);

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    if (initRMAoptions) {
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        MPIU_THREADSAFE_INIT_BLOCK_BEGIN(initRMAoptions);
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        MPIDI_CH3_RMA_Init_sync_pvars();
        MPIDI_CH3_RMA_Init_pkthandler_pvars();
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        MPIU_THREADSAFE_INIT_CLEAR(initRMAoptions);
        MPIU_THREADSAFE_INIT_BLOCK_END(initRMAoptions);
    }

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    *win_ptr = (MPID_Win *) MPIU_Handle_obj_alloc(&MPID_Win_mem);
    MPIU_ERR_CHKANDJUMP1(!(*win_ptr), mpi_errno, MPI_ERR_OTHER, "**nomem",
                         "**nomem %s", "MPID_Win_mem");
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    mpi_errno = MPIR_Comm_dup_impl(comm_ptr, &win_comm_ptr);
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    if (mpi_errno)
        MPIU_ERR_POP(mpi_errno);
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    MPIU_Object_set_ref(*win_ptr, 1);

    /* (*win_ptr)->errhandler is set by upper level; */
    /* (*win_ptr)->base is set by caller; */
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    (*win_ptr)->size = size;
    (*win_ptr)->disp_unit = disp_unit;
    (*win_ptr)->create_flavor = create_flavor;
    (*win_ptr)->model = model;
    (*win_ptr)->attributes = NULL;
    (*win_ptr)->comm_ptr = win_comm_ptr;
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    (*win_ptr)->at_completion_counter = 0;
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    /* (*win_ptr)->base_addrs[] is set by caller; */
    /* (*win_ptr)->sizes[] is set by caller; */
    /* (*win_ptr)->disp_units[] is set by caller; */
    /* (*win_ptr)->all_win_handles[] is set by caller; */
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    (*win_ptr)->current_lock_type = MPID_LOCK_NONE;
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    (*win_ptr)->shared_lock_ref_cnt = 0;
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    (*win_ptr)->lock_queue = NULL;
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    (*win_ptr)->lock_queue_tail = NULL;
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    (*win_ptr)->shm_allocated = FALSE;
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    (*win_ptr)->states.access_state = MPIDI_RMA_NONE;
    (*win_ptr)->states.exposure_state = MPIDI_RMA_NONE;
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    (*win_ptr)->non_empty_slots = 0;
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    (*win_ptr)->accumulated_ops_cnt = 0;
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    (*win_ptr)->active_req_cnt = 0;
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    (*win_ptr)->fence_sync_req = MPI_REQUEST_NULL;
    (*win_ptr)->start_req = NULL;
    (*win_ptr)->start_ranks_in_win_grp = NULL;
    (*win_ptr)->start_grp_size = 0;
    (*win_ptr)->lock_all_assert = 0;
    (*win_ptr)->lock_epoch_count = 0;
    (*win_ptr)->outstanding_locks = 0;
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    (*win_ptr)->current_lock_data_bytes = 0;
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    /* Initialize the info flags */
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    (*win_ptr)->info_args.no_locks = 0;
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    (*win_ptr)->info_args.accumulate_ordering = MPIDI_ACC_ORDER_RAR | MPIDI_ACC_ORDER_RAW |
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        MPIDI_ACC_ORDER_WAR | MPIDI_ACC_ORDER_WAW;
    (*win_ptr)->info_args.accumulate_ops = MPIDI_ACC_OPS_SAME_OP_NO_OP;
    (*win_ptr)->info_args.same_size = 0;
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    (*win_ptr)->info_args.alloc_shared_noncontig = 0;
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    (*win_ptr)->info_args.alloc_shm = FALSE;
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    MPIU_CHKPMEM_MALLOC((*win_ptr)->op_pool_start, MPIDI_RMA_Op_t *,
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                        sizeof(MPIDI_RMA_Op_t) * MPIR_CVAR_CH3_RMA_OP_WIN_POOL_SIZE, mpi_errno,
                        "RMA op pool");
    (*win_ptr)->op_pool = NULL;
    (*win_ptr)->op_pool_tail = NULL;
    for (i = 0; i < MPIR_CVAR_CH3_RMA_OP_WIN_POOL_SIZE; i++) {
        (*win_ptr)->op_pool_start[i].pool_type = MPIDI_RMA_POOL_WIN;
        MPL_LL_APPEND((*win_ptr)->op_pool, (*win_ptr)->op_pool_tail, &((*win_ptr)->op_pool_start[i]));
    }

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    win_target_pool_size = MPIR_MIN(MPIR_CVAR_CH3_RMA_TARGET_WIN_POOL_SIZE, MPIR_Comm_size(win_comm_ptr));
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    MPIU_CHKPMEM_MALLOC((*win_ptr)->target_pool_start, MPIDI_RMA_Target_t *,
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                        sizeof(MPIDI_RMA_Target_t) * win_target_pool_size,
                        mpi_errno, "RMA target pool");
    (*win_ptr)->target_pool = NULL;
    (*win_ptr)->target_pool_tail = NULL;
    for (i = 0; i < win_target_pool_size; i++) {
        (*win_ptr)->target_pool_start[i].pool_type = MPIDI_RMA_POOL_WIN;
        MPL_LL_APPEND((*win_ptr)->target_pool, (*win_ptr)->target_pool_tail, &((*win_ptr)->target_pool_start[i]));
    }

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    (*win_ptr)->num_slots = MPIR_MIN(MPIR_CVAR_CH3_RMA_SLOTS_SIZE, MPIR_Comm_size(win_comm_ptr));
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    MPIU_CHKPMEM_MALLOC((*win_ptr)->slots, MPIDI_RMA_Slot_t *,
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                        sizeof(MPIDI_RMA_Slot_t) * (*win_ptr)->num_slots, mpi_errno, "RMA slots");
    for (i = 0; i < (*win_ptr)->num_slots; i++) {
        (*win_ptr)->slots[i].target_list = NULL;
        (*win_ptr)->slots[i].target_list_tail = NULL;
    }

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    /* FIXME: we can optimize by letting the user to pass WIN INFO hint if they will not use passive target,
       in such case we do not need to allocate window pool for lock entries. */
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    MPIU_CHKPMEM_MALLOC((*win_ptr)->lock_entry_pool_start, MPIDI_RMA_Lock_entry_t *,
                        sizeof(MPIDI_RMA_Lock_entry_t) * MPIR_CVAR_CH3_RMA_LOCK_ENTRY_WIN_POOL_SIZE,
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                        mpi_errno, "RMA lock entry pool");
    (*win_ptr)->lock_entry_pool = NULL;
    (*win_ptr)->lock_entry_pool_tail = NULL;
    for (i = 0; i < MPIR_CVAR_CH3_RMA_LOCK_ENTRY_WIN_POOL_SIZE; i++) {
        MPL_LL_APPEND((*win_ptr)->lock_entry_pool, (*win_ptr)->lock_entry_pool_tail,
                      &((*win_ptr)->lock_entry_pool_start[i]));
    }

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    MPID_WIN_FTABLE_SET_DEFAULTS(win_ptr);

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    /* enqueue window into the global list */
    MPIU_CHKPMEM_MALLOC(win_elem, MPIDI_RMA_Win_list_t *, sizeof(MPIDI_RMA_Win_list_t), mpi_errno,
                        "Window list element");
    win_elem->win_ptr = *win_ptr;
    MPL_LL_APPEND(MPIDI_RMA_Win_list, MPIDI_RMA_Win_list_tail, win_elem);

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  fn_exit:
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    MPIDI_FUNC_EXIT(MPID_STATE_WIN_INIT);
    return mpi_errno;
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  fn_fail:
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    MPIU_CHKPMEM_REAP();
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    goto fn_exit;
}
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#undef FUNCNAME
#define FUNCNAME MPID_Win_set_info
#undef FCNAME
#define FCNAME MPIDI_QUOTE(FUNCNAME)
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int MPID_Win_set_info(MPID_Win * win, MPID_Info * info)
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{
    int mpi_errno = MPI_SUCCESS;
    MPIDI_STATE_DECL(MPID_STATE_MPID_WIN_SET_INFO);

    MPIDI_FUNC_ENTER(MPID_STATE_MPID_WIN_SET_INFO);

    mpi_errno = win->RMAFns.Win_set_info(win, info);
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    if (mpi_errno != MPI_SUCCESS) {
        MPIU_ERR_POP(mpi_errno);
    }
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  fn_exit:
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    MPIDI_FUNC_EXIT(MPID_STATE_MPID_WIN_SET_INFO);
    return mpi_errno;
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  fn_fail:
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    goto fn_exit;
}


#undef FUNCNAME
#define FUNCNAME MPID_Win_get_info
#undef FCNAME
#define FCNAME MPIDI_QUOTE(FUNCNAME)
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int MPID_Win_get_info(MPID_Win * win, MPID_Info ** info_used)
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{
    int mpi_errno = MPI_SUCCESS;
    MPIDI_STATE_DECL(MPID_STATE_MPID_WIN_GET_INFO);

    MPIDI_FUNC_ENTER(MPID_STATE_MPID_WIN_GET_INFO);

    mpi_errno = win->RMAFns.Win_get_info(win, info_used);
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    if (mpi_errno != MPI_SUCCESS) {
        MPIU_ERR_POP(mpi_errno);
    }
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  fn_exit:
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    MPIDI_FUNC_EXIT(MPID_STATE_MPID_WIN_GET_INFO);
    return mpi_errno;
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  fn_fail:
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    goto fn_exit;
}