예제 #1
0
파일: igather.c 프로젝트: jeffhammond/mpich
/*@
MPI_Igather - Gathers together values from a group of processes in
              a nonblocking way

Input Parameters:
+ sendbuf - starting address of the send buffer (choice)
. sendcount - number of elements in send buffer (non-negative integer)
. sendtype - data type of send buffer elements (handle)
. recvcount - number of elements for any single receive (non-negative integer, significant only at root)
. recvtype - data type of receive buffer elements (significant only at root) (handle)
. root - rank of receiving process (integer)
- comm - communicator (handle)

Output Parameters:
+ recvbuf - starting address of the receive buffer (significant only at root) (choice)
- request - communication request (handle)

.N ThreadSafe

.N Fortran

.N Errors
@*/
int MPI_Igather(const void *sendbuf, int sendcount, MPI_Datatype sendtype,
                void *recvbuf, int recvcount, MPI_Datatype recvtype,
                int root, MPI_Comm comm, MPI_Request * request)
{
    int mpi_errno = MPI_SUCCESS;
    MPIR_Comm *comm_ptr = NULL;
    MPIR_Request *request_ptr = NULL;
    MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_IGATHER);

    MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_IGATHER);

    /* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
            MPIR_ERRTEST_COMM(comm, mpi_errno);
        }
        MPID_END_ERROR_CHECKS;
    }
#endif /* HAVE_ERROR_CHECKING */

    /* Convert MPI object handles to object pointers */
    MPIR_Comm_get_ptr(comm, comm_ptr);

    /* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
            MPIR_Datatype *sendtype_ptr = NULL, *recvtype_ptr = NULL;
            int rank;

            MPIR_Comm_valid_ptr(comm_ptr, mpi_errno, FALSE);
            if (mpi_errno != MPI_SUCCESS)
                goto fn_fail;

            if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTRACOMM) {
                MPIR_ERRTEST_INTRA_ROOT(comm_ptr, root, mpi_errno);

                if (sendbuf != MPI_IN_PLACE) {
                    MPIR_ERRTEST_COUNT(sendcount, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(sendtype, "sendtype", mpi_errno);
                    if (HANDLE_GET_KIND(sendtype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(sendtype, sendtype_ptr);
                        MPIR_Datatype_valid_ptr(sendtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                        MPIR_Datatype_committed_ptr(sendtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                    }
                    MPIR_ERRTEST_USERBUFFER(sendbuf, sendcount, sendtype, mpi_errno);
                }

                rank = comm_ptr->rank;
                if (rank == root) {
                    MPIR_ERRTEST_COUNT(recvcount, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(recvtype, "recvtype", mpi_errno);
                    if (HANDLE_GET_KIND(recvtype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(recvtype, recvtype_ptr);
                        MPIR_Datatype_valid_ptr(recvtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                        MPIR_Datatype_committed_ptr(recvtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                    }
                    MPIR_ERRTEST_RECVBUF_INPLACE(recvbuf, recvcount, mpi_errno);
                    MPIR_ERRTEST_USERBUFFER(recvbuf, recvcount, recvtype, mpi_errno);

                    /* catch common aliasing cases */
                    if (recvbuf != MPI_IN_PLACE && sendtype == recvtype && sendcount == recvcount &&
                        sendcount != 0) {
                        MPI_Aint recvtype_size;
                        MPIR_Datatype_get_size_macro(recvtype, recvtype_size);
                        MPIR_ERRTEST_ALIAS_COLL(sendbuf,
                                                (char *) recvbuf +
                                                comm_ptr->rank * recvcount * recvtype_size,
                                                mpi_errno);
                    }
                } else
                    MPIR_ERRTEST_SENDBUF_INPLACE(sendbuf, sendcount, mpi_errno);
            }

            if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTERCOMM) {
                MPIR_ERRTEST_INTER_ROOT(comm_ptr, root, mpi_errno);

                if (root == MPI_ROOT) {
                    MPIR_ERRTEST_COUNT(recvcount, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(recvtype, "recvtype", mpi_errno);
                    if (HANDLE_GET_KIND(recvtype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(recvtype, recvtype_ptr);
                        MPIR_Datatype_valid_ptr(recvtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                        MPIR_Datatype_committed_ptr(recvtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                    }
                    MPIR_ERRTEST_RECVBUF_INPLACE(recvbuf, recvcount, mpi_errno);
                    MPIR_ERRTEST_USERBUFFER(recvbuf, recvcount, recvtype, mpi_errno);
                }

                else if (root != MPI_PROC_NULL) {
                    MPIR_ERRTEST_COUNT(sendcount, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(sendtype, "sendtype", mpi_errno);
                    if (HANDLE_GET_KIND(sendtype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(sendtype, sendtype_ptr);
                        MPIR_Datatype_valid_ptr(sendtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                        MPIR_Datatype_committed_ptr(sendtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                    }
                    MPIR_ERRTEST_SENDBUF_INPLACE(sendbuf, sendcount, mpi_errno);
                    MPIR_ERRTEST_USERBUFFER(sendbuf, sendcount, sendtype, mpi_errno);
                }
            }
        }
        MPID_END_ERROR_CHECKS;
    }
#endif /* HAVE_ERROR_CHECKING */

    /* ... body of routine ...  */

    mpi_errno = MPIR_Igather(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype,
                             root, comm_ptr, &request_ptr);
    if (mpi_errno)
        MPIR_ERR_POP(mpi_errno);

    /* create a complete request, if needed */
    if (!request_ptr)
        request_ptr = MPIR_Request_create_complete(MPIR_REQUEST_KIND__COLL);
    /* return the handle of the request to the user */
    *request = request_ptr->handle;

    /* ... end of body of routine ... */

  fn_exit:
    MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_IGATHER);
    MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    return mpi_errno;

  fn_fail:
    /* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
    {
        mpi_errno =
            MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, __func__, __LINE__, MPI_ERR_OTHER,
                                 "**mpi_igather", "**mpi_igather %p %d %D %p %d %D %d %C %p",
                                 sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, root,
                                 comm, request);
    }
#endif
    mpi_errno = MPIR_Err_return_comm(comm_ptr, __func__, mpi_errno);
    goto fn_exit;
    /* --END ERROR HANDLING-- */
}
예제 #2
0
파일: igatherv.c 프로젝트: agrimaldi/pmap
/*@
MPI_Igatherv - XXX description here

Input Parameters:
+ sendbuf - starting address of the send buffer (choice)
. sendcount - number of elements in send buffer (non-negative integer)
. sendtype - data type of send buffer elements (handle)
. recvcounts - non-negative integer array (of length group size) containing the number of elements that are received from each process (significant only at root)
. displs - integer array (of length group size). Entry i specifies the displacement relative to recvbuf at which to place the incoming data from process i (significant only at root)
. recvtype - data type of receive buffer elements (significant only at root) (handle)
. root - rank of receiving process (integer)
- comm - communicator (handle)

Output Parameters:
+ recvbuf - starting address of the receive buffer (significant only at root) (choice)
- request - communication request (handle)

.N ThreadSafe

.N Fortran

.N Errors
@*/
int MPI_Igatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
                 const int recvcounts[], const int displs[], MPI_Datatype recvtype, int root,
                 MPI_Comm comm, MPI_Request *request)
{
    int mpi_errno = MPI_SUCCESS;
    MPID_Comm *comm_ptr = NULL;
    MPID_MPI_STATE_DECL(MPID_STATE_MPI_IGATHERV);

    MPIU_THREAD_CS_ENTER(ALLFUNC,);
    MPID_MPI_FUNC_ENTER(MPID_STATE_MPI_IGATHERV);

    /* Validate parameters, especially handles needing to be converted */
#   ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS
        {
            MPIR_ERRTEST_COMM(comm, mpi_errno);

            /* TODO more checks may be appropriate */
        }
        MPID_END_ERROR_CHECKS
    }
#   endif /* HAVE_ERROR_CHECKING */

    /* Convert MPI object handles to object pointers */
    MPID_Comm_get_ptr(comm, comm_ptr);

    /* Validate parameters and objects (post conversion) */
#   ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS
        {
            MPID_Datatype *sendtype_ptr=NULL, *recvtype_ptr=NULL;
            int i, rank, comm_size;

            MPID_Comm_valid_ptr( comm_ptr, mpi_errno );
            if (mpi_errno != MPI_SUCCESS) goto fn_fail;

            if (comm_ptr->comm_kind == MPID_INTRACOMM) {
                MPIR_ERRTEST_INTRA_ROOT(comm_ptr, root, mpi_errno);

                if (sendbuf != MPI_IN_PLACE) {
                    MPIR_ERRTEST_COUNT(sendcount, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(sendtype, "sendtype", mpi_errno);
                    if (HANDLE_GET_KIND(sendtype) != HANDLE_KIND_BUILTIN) {
                        MPID_Datatype_get_ptr(sendtype, sendtype_ptr);
                        MPID_Datatype_valid_ptr( sendtype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                        MPID_Datatype_committed_ptr( sendtype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                    }
                    MPIR_ERRTEST_USERBUFFER(sendbuf,sendcount,sendtype,mpi_errno);
                }

                rank = comm_ptr->rank;
                if (rank == root) {
                    comm_size = comm_ptr->local_size;
                    for (i=0; i<comm_size; i++) {
                        MPIR_ERRTEST_COUNT(recvcounts[i], mpi_errno);
                        MPIR_ERRTEST_DATATYPE(recvtype, "recvtype", mpi_errno);
                    }
                    if (HANDLE_GET_KIND(recvtype) != HANDLE_KIND_BUILTIN) {
                        MPID_Datatype_get_ptr(recvtype, recvtype_ptr);
                        MPID_Datatype_valid_ptr( recvtype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                        MPID_Datatype_committed_ptr( recvtype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                    }

                    for (i=0; i<comm_size; i++) {
                        if (recvcounts[i] > 0) {
                            MPIR_ERRTEST_RECVBUF_INPLACE(recvbuf, recvcounts[i], mpi_errno);
                            MPIR_ERRTEST_USERBUFFER(recvbuf,recvcounts[i],recvtype,mpi_errno);
                            break;
                        }
                    }
                }
                else
                    MPIR_ERRTEST_SENDBUF_INPLACE(sendbuf, sendcount, mpi_errno);
            }

            if (comm_ptr->comm_kind == MPID_INTERCOMM) {
                MPIR_ERRTEST_INTER_ROOT(comm_ptr, root, mpi_errno);

                if (root == MPI_ROOT) {
                    comm_size = comm_ptr->remote_size;
                    for (i=0; i<comm_size; i++) {
                        MPIR_ERRTEST_COUNT(recvcounts[i], mpi_errno);
                        MPIR_ERRTEST_DATATYPE(recvtype, "recvtype", mpi_errno);
                    }
                    if (HANDLE_GET_KIND(recvtype) != HANDLE_KIND_BUILTIN) {
                        MPID_Datatype_get_ptr(recvtype, recvtype_ptr);
                        MPID_Datatype_valid_ptr( recvtype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                        MPID_Datatype_committed_ptr( recvtype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                    }
                    for (i=0; i<comm_size; i++) {
                        if (recvcounts[i] > 0) {
                            MPIR_ERRTEST_RECVBUF_INPLACE(recvbuf, recvcounts[i], mpi_errno);
                            MPIR_ERRTEST_USERBUFFER(recvbuf,recvcounts[i],recvtype,mpi_errno);
                            break;
                        }
                    }
                }
                else if (root != MPI_PROC_NULL) {
                    MPIR_ERRTEST_COUNT(sendcount, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(sendtype, "sendtype", mpi_errno);
                    if (HANDLE_GET_KIND(sendtype) != HANDLE_KIND_BUILTIN) {
                        MPID_Datatype_get_ptr(sendtype, sendtype_ptr);
                        MPID_Datatype_valid_ptr( sendtype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                        MPID_Datatype_committed_ptr( sendtype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                    }
                    MPIR_ERRTEST_SENDBUF_INPLACE(sendbuf, sendcount, mpi_errno);
                    MPIR_ERRTEST_USERBUFFER(sendbuf,sendcount,sendtype,mpi_errno);
                }
            }
        }
        MPID_END_ERROR_CHECKS
    }
#   endif /* HAVE_ERROR_CHECKING */

    /* ... body of routine ...  */

    mpi_errno = MPIR_Igatherv_impl(sendbuf, sendcount, sendtype, recvbuf, recvcounts, displs, recvtype, root, comm_ptr, request);
    if (mpi_errno) MPIU_ERR_POP(mpi_errno);

    /* ... end of body of routine ... */

fn_exit:
    MPID_MPI_FUNC_EXIT(MPID_STATE_MPI_IGATHERV);
    MPIU_THREAD_CS_EXIT(ALLFUNC,);
    return mpi_errno;

fn_fail:
    /* --BEGIN ERROR HANDLING-- */
#   ifdef HAVE_ERROR_CHECKING
    {
        mpi_errno = MPIR_Err_create_code(
            mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
            "**mpi_igatherv", "**mpi_igatherv %p %d %D %p %p %p %D %d %C %p", sendbuf, sendcount, sendtype, recvbuf, recvcounts, displs, recvtype, root, comm, request);
    }
#   endif
    mpi_errno = MPIR_Err_return_comm(comm_ptr, FCNAME, mpi_errno);
    goto fn_exit;
    /* --END ERROR HANDLING-- */
    goto fn_exit;
}
예제 #3
0
파일: gatherv.c 프로젝트: jeffhammond/mpich
/*@

MPI_Gatherv - Gathers into specified locations from all processes in a group

Input Parameters:
+ sendbuf - starting address of send buffer (choice)
. sendcount - number of elements in send buffer (integer)
. sendtype - data type of send buffer elements (handle)
. recvcounts - integer array (of length group size)
containing the number of elements that are received from each process
(significant only at 'root')
. displs - integer array (of length group size). Entry
 'i'  specifies the displacement relative to recvbuf  at
which to place the incoming data from process  'i'  (significant only
at root)
. recvtype - data type of recv buffer elements
(significant only at 'root') (handle)
. root - rank of receiving process (integer)
- comm - communicator (handle)

Output Parameters:
. recvbuf - address of receive buffer (choice, significant only at 'root')

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_COMM
.N MPI_ERR_TYPE
.N MPI_ERR_BUFFER
@*/
int MPI_Gatherv(const void *sendbuf, int sendcount, MPI_Datatype sendtype,
                void *recvbuf, const int *recvcounts, const int *displs,
                MPI_Datatype recvtype, int root, MPI_Comm comm)
{
    int mpi_errno = MPI_SUCCESS;
    MPIR_Comm *comm_ptr = NULL;
    MPIR_Errflag_t errflag = MPIR_ERR_NONE;
    MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_GATHERV);

    MPIR_ERRTEST_INITIALIZED_ORDIE();

    MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    MPIR_FUNC_TERSE_COLL_ENTER(MPID_STATE_MPI_GATHERV);

    /* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
            MPIR_ERRTEST_COMM(comm, mpi_errno);
        }
        MPID_END_ERROR_CHECKS;
    }
#endif /* HAVE_ERROR_CHECKING */

    /* Convert MPI object handles to object pointers */
    MPIR_Comm_get_ptr(comm, comm_ptr);

    /* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
            MPIR_Datatype *sendtype_ptr = NULL, *recvtype_ptr = NULL;
            int i, rank, comm_size;

            MPIR_Comm_valid_ptr(comm_ptr, mpi_errno, FALSE);
            if (mpi_errno != MPI_SUCCESS)
                goto fn_fail;

            if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTRACOMM) {
                MPIR_ERRTEST_INTRA_ROOT(comm_ptr, root, mpi_errno);

                if (sendbuf != MPI_IN_PLACE) {
                    MPIR_ERRTEST_COUNT(sendcount, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(sendtype, "sendtype", mpi_errno);
                    if (HANDLE_GET_KIND(sendtype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(sendtype, sendtype_ptr);
                        MPIR_Datatype_valid_ptr(sendtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                        MPIR_Datatype_committed_ptr(sendtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                    }
                    MPIR_ERRTEST_USERBUFFER(sendbuf, sendcount, sendtype, mpi_errno);
                }

                rank = comm_ptr->rank;
                if (rank == root) {
                    comm_size = comm_ptr->local_size;
                    for (i = 0; i < comm_size; i++) {
                        MPIR_ERRTEST_COUNT(recvcounts[i], mpi_errno);
                        MPIR_ERRTEST_DATATYPE(recvtype, "recvtype", mpi_errno);
                    }
                    if (HANDLE_GET_KIND(recvtype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(recvtype, recvtype_ptr);
                        MPIR_Datatype_valid_ptr(recvtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                        MPIR_Datatype_committed_ptr(recvtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                    }

                    for (i = 0; i < comm_size; i++) {
                        if (recvcounts[i] > 0) {
                            MPIR_ERRTEST_RECVBUF_INPLACE(recvbuf, recvcounts[i], mpi_errno);
                            MPIR_ERRTEST_USERBUFFER(recvbuf, recvcounts[i], recvtype, mpi_errno);
                            break;
                        }
                    }

                    /* catch common aliasing cases */
                    if (sendbuf != MPI_IN_PLACE && sendtype == recvtype &&
                        recvcounts[comm_ptr->rank] != 0 && sendcount != 0) {
                        int recvtype_size;
                        MPIR_Datatype_get_size_macro(recvtype, recvtype_size);
                        MPIR_ERRTEST_ALIAS_COLL(sendbuf,
                                                (char *) recvbuf +
                                                displs[comm_ptr->rank] * recvtype_size, mpi_errno);
                    }
                } else
                    MPIR_ERRTEST_SENDBUF_INPLACE(sendbuf, sendcount, mpi_errno);
            }

            if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTERCOMM) {
                MPIR_ERRTEST_INTER_ROOT(comm_ptr, root, mpi_errno);

                if (root == MPI_ROOT) {
                    comm_size = comm_ptr->remote_size;
                    for (i = 0; i < comm_size; i++) {
                        MPIR_ERRTEST_COUNT(recvcounts[i], mpi_errno);
                        MPIR_ERRTEST_DATATYPE(recvtype, "recvtype", mpi_errno);
                    }
                    if (HANDLE_GET_KIND(recvtype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(recvtype, recvtype_ptr);
                        MPIR_Datatype_valid_ptr(recvtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                        MPIR_Datatype_committed_ptr(recvtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                    }
                    for (i = 0; i < comm_size; i++) {
                        if (recvcounts[i] > 0) {
                            MPIR_ERRTEST_RECVBUF_INPLACE(recvbuf, recvcounts[i], mpi_errno);
                            MPIR_ERRTEST_USERBUFFER(recvbuf, recvcounts[i], recvtype, mpi_errno);
                            break;
                        }
                    }
                } else if (root != MPI_PROC_NULL) {
                    MPIR_ERRTEST_COUNT(sendcount, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(sendtype, "sendtype", mpi_errno);
                    if (HANDLE_GET_KIND(sendtype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(sendtype, sendtype_ptr);
                        MPIR_Datatype_valid_ptr(sendtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                        MPIR_Datatype_committed_ptr(sendtype_ptr, mpi_errno);
                        if (mpi_errno != MPI_SUCCESS)
                            goto fn_fail;
                    }
                    MPIR_ERRTEST_SENDBUF_INPLACE(sendbuf, sendcount, mpi_errno);
                    MPIR_ERRTEST_USERBUFFER(sendbuf, sendcount, sendtype, mpi_errno);
                }
            }
        }
        MPID_END_ERROR_CHECKS;
    }
#endif /* HAVE_ERROR_CHECKING */

    /* ... body of routine ...  */

    mpi_errno = MPIR_Gatherv(sendbuf, sendcount, sendtype,
                             recvbuf, recvcounts, displs, recvtype, root, comm_ptr, &errflag);
    if (mpi_errno)
        goto fn_fail;

    /* ... end of body of routine ... */

  fn_exit:
    MPIR_FUNC_TERSE_COLL_EXIT(MPID_STATE_MPI_GATHERV);
    MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    return mpi_errno;

  fn_fail:
    /* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
    {
        mpi_errno =
            MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, __func__, __LINE__, MPI_ERR_OTHER,
                                 "**mpi_gatherv", "**mpi_gatherv %p %d %D %p %p %p %D %d %C",
                                 sendbuf, sendcount, sendtype, recvbuf, recvcounts, displs,
                                 recvtype, root, comm);
    }
#endif
    mpi_errno = MPIR_Err_return_comm(comm_ptr, __func__, mpi_errno);
    goto fn_exit;
    /* --END ERROR HANDLING-- */
}
예제 #4
0
파일: bcast.c 프로젝트: jeffhammond/mpich
/*@
MPI_Bcast - Broadcasts a message from the process with rank "root" to
            all other processes of the communicator

Input/Output Parameters:
. buffer - starting address of buffer (choice)

Input Parameters:
+ count - number of entries in buffer (integer)
. datatype - data type of buffer (handle)
. root - rank of broadcast root (integer)
- comm - communicator (handle)

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_COMM
.N MPI_ERR_COUNT
.N MPI_ERR_TYPE
.N MPI_ERR_BUFFER
.N MPI_ERR_ROOT
@*/
int MPI_Bcast(void *buffer, int count, MPI_Datatype datatype, int root, MPI_Comm comm)
{
    int mpi_errno = MPI_SUCCESS;
    MPIR_Comm *comm_ptr = NULL;
    MPIR_Errflag_t errflag = MPIR_ERR_NONE;
    MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_BCAST);

    MPIR_ERRTEST_INITIALIZED_ORDIE();

    MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    MPIR_FUNC_TERSE_COLL_ENTER(MPID_STATE_MPI_BCAST);

    /* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
            MPIR_ERRTEST_COMM(comm, mpi_errno);
        }
        MPID_END_ERROR_CHECKS;
    }
#endif /* HAVE_ERROR_CHECKING */

    /* Convert MPI object handles to object pointers */
    MPIR_Comm_get_ptr(comm, comm_ptr);

    /* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
            MPIR_Datatype *datatype_ptr = NULL;

            MPIR_Comm_valid_ptr(comm_ptr, mpi_errno, FALSE);
            if (mpi_errno != MPI_SUCCESS)
                goto fn_fail;
            MPIR_ERRTEST_COUNT(count, mpi_errno);
            MPIR_ERRTEST_DATATYPE(datatype, "datatype", mpi_errno);
            if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTRACOMM) {
                MPIR_ERRTEST_INTRA_ROOT(comm_ptr, root, mpi_errno);
            } else {
                MPIR_ERRTEST_INTER_ROOT(comm_ptr, root, mpi_errno);
            }

            if (HANDLE_GET_KIND(datatype) != HANDLE_KIND_BUILTIN) {
                MPIR_Datatype_get_ptr(datatype, datatype_ptr);
                MPIR_Datatype_valid_ptr(datatype_ptr, mpi_errno);
                if (mpi_errno != MPI_SUCCESS)
                    goto fn_fail;
                MPIR_Datatype_committed_ptr(datatype_ptr, mpi_errno);
                if (mpi_errno != MPI_SUCCESS)
                    goto fn_fail;
            }

            MPIR_ERRTEST_BUF_INPLACE(buffer, count, mpi_errno);
            MPIR_ERRTEST_USERBUFFER(buffer, count, datatype, mpi_errno);
        }
        MPID_END_ERROR_CHECKS;
    }
#endif /* HAVE_ERROR_CHECKING */

    /* ... body of routine ...  */

    mpi_errno = MPIR_Bcast(buffer, count, datatype, root, comm_ptr, &errflag);
    if (mpi_errno)
        MPIR_ERR_POP(mpi_errno);

    /* ... end of body of routine ... */

  fn_exit:
    MPIR_FUNC_TERSE_COLL_EXIT(MPID_STATE_MPI_BCAST);
    MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    return mpi_errno;

  fn_fail:
    /* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
    {
        mpi_errno =
            MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, __func__, __LINE__, MPI_ERR_OTHER,
                                 "**mpi_bcast", "**mpi_bcast %p %d %D %d %C", buffer, count,
                                 datatype, root, comm);
    }
#endif
    mpi_errno = MPIR_Err_return_comm(comm_ptr, __func__, mpi_errno);
    goto fn_exit;
    /* --END ERROR HANDLING-- */
}
예제 #5
0
파일: reduce.c 프로젝트: NexMirror/MPICH
/*@

MPI_Reduce - Reduces values on all processes to a single value

Input Parameters:
+ sendbuf - address of send buffer (choice) 
. count - number of elements in send buffer (integer) 
. datatype - data type of elements of send buffer (handle) 
. op - reduce operation (handle) 
. root - rank of root process (integer) 
- comm - communicator (handle) 

Output Parameters:
. recvbuf - address of receive buffer (choice, 
 significant only at 'root') 

.N ThreadSafe

.N Fortran

.N collops

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_COMM
.N MPI_ERR_COUNT
.N MPI_ERR_TYPE
.N MPI_ERR_BUFFER
.N MPI_ERR_BUFFER_ALIAS

@*/
int MPI_Reduce(const void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype,
	       MPI_Op op, int root, MPI_Comm comm)
{
    int mpi_errno = MPI_SUCCESS;
    MPIR_Comm *comm_ptr = NULL;
    MPIR_Errflag_t errflag = MPIR_ERR_NONE;
    MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_REDUCE);

    MPIR_ERRTEST_INITIALIZED_ORDIE();
    
    MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    MPIR_FUNC_TERSE_COLL_ENTER(MPID_STATE_MPI_REDUCE);

    /* Validate parameters, especially handles needing to be converted */
#   ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
	    MPIR_ERRTEST_COMM(comm, mpi_errno);
	}
        MPID_END_ERROR_CHECKS;
    }
#   endif /* HAVE_ERROR_CHECKING */

    /* Convert MPI object handles to object pointers */
    MPIR_Comm_get_ptr( comm, comm_ptr );

    /* Validate parameters and objects (post conversion) */
#   ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
	    MPIR_Datatype *datatype_ptr = NULL;
            MPIR_Op *op_ptr = NULL;
            int rank;
	    
            MPIR_Comm_valid_ptr( comm_ptr, mpi_errno, FALSE );
            if (mpi_errno != MPI_SUCCESS) goto fn_fail;

	    if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTRACOMM) {
		MPIR_ERRTEST_INTRA_ROOT(comm_ptr, root, mpi_errno);

                MPIR_ERRTEST_COUNT(count, mpi_errno);
                MPIR_ERRTEST_DATATYPE(datatype, "datatype", mpi_errno);
                if (HANDLE_GET_KIND(datatype) != HANDLE_KIND_BUILTIN) {
                    MPIR_Datatype_get_ptr(datatype, datatype_ptr);
                    MPIR_Datatype_valid_ptr( datatype_ptr, mpi_errno );
                    if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                    MPIR_Datatype_committed_ptr( datatype_ptr, mpi_errno );
                    if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                }

                if (sendbuf != MPI_IN_PLACE)
                    MPIR_ERRTEST_USERBUFFER(sendbuf,count,datatype,mpi_errno);

                rank = comm_ptr->rank;
                if (rank == root) {
                    MPIR_ERRTEST_RECVBUF_INPLACE(recvbuf, count, mpi_errno);
                    MPIR_ERRTEST_USERBUFFER(recvbuf,count,datatype,mpi_errno);
                    if (count != 0 && sendbuf != MPI_IN_PLACE) {
                        MPIR_ERRTEST_ALIAS_COLL(sendbuf, recvbuf, mpi_errno);
                    }
                }
                else
                    MPIR_ERRTEST_SENDBUF_INPLACE(sendbuf, count, mpi_errno);
            }

	    if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTERCOMM) {
		MPIR_ERRTEST_INTER_ROOT(comm_ptr, root, mpi_errno);

                if (root == MPI_ROOT) {
                    MPIR_ERRTEST_COUNT(count, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(datatype, "datatype", mpi_errno);
                    if (HANDLE_GET_KIND(datatype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(datatype, datatype_ptr);
                        MPIR_Datatype_valid_ptr( datatype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                        MPIR_Datatype_committed_ptr( datatype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                    }
                    MPIR_ERRTEST_RECVBUF_INPLACE(recvbuf, count, mpi_errno);
                    MPIR_ERRTEST_USERBUFFER(recvbuf,count,datatype,mpi_errno);
                }
                
                else if (root != MPI_PROC_NULL) {
                    MPIR_ERRTEST_COUNT(count, mpi_errno);
                    MPIR_ERRTEST_DATATYPE(datatype, "datatype", mpi_errno);
                    if (HANDLE_GET_KIND(datatype) != HANDLE_KIND_BUILTIN) {
                        MPIR_Datatype_get_ptr(datatype, datatype_ptr);
                        MPIR_Datatype_valid_ptr( datatype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                        MPIR_Datatype_committed_ptr( datatype_ptr, mpi_errno );
                        if (mpi_errno != MPI_SUCCESS) goto fn_fail;
                    }
                    MPIR_ERRTEST_SENDBUF_INPLACE(sendbuf, count, mpi_errno);
                    MPIR_ERRTEST_USERBUFFER(sendbuf,count,datatype,mpi_errno);
                }
            }

	    MPIR_ERRTEST_OP(op, mpi_errno);

            if (mpi_errno != MPI_SUCCESS) goto fn_fail;
            if (HANDLE_GET_KIND(op) != HANDLE_KIND_BUILTIN) {
                MPIR_Op_get_ptr(op, op_ptr);
                MPIR_Op_valid_ptr( op_ptr, mpi_errno );
            }
            if (HANDLE_GET_KIND(op) == HANDLE_KIND_BUILTIN) {
                mpi_errno = 
                    ( * MPIR_OP_HDL_TO_DTYPE_FN(op) )(datatype); 
            }
	    if (mpi_errno != MPI_SUCCESS) goto fn_fail;
        }
        MPID_END_ERROR_CHECKS;
    }
#   endif /* HAVE_ERROR_CHECKING */

    /* ... body of routine ...  */

    mpi_errno = MPIR_Reduce(sendbuf, recvbuf, count, datatype, op, root, comm_ptr, &errflag);
    if (mpi_errno) MPIR_ERR_POP(mpi_errno);
    
    /* ... end of body of routine ... */
    
  fn_exit:
    MPIR_FUNC_TERSE_COLL_EXIT(MPID_STATE_MPI_REDUCE);
    MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    return mpi_errno;

  fn_fail:
    /* --BEGIN ERROR HANDLING-- */
#   ifdef HAVE_ERROR_CHECKING
    {
    mpi_errno = MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, 
				     FCNAME, __LINE__, MPI_ERR_OTHER,
	"**mpi_reduce", "**mpi_reduce %p %p %d %D %O %d %C", sendbuf, recvbuf, 
				     count, datatype, op, root, comm);
    }
#   endif
    mpi_errno = MPIR_Err_return_comm( comm_ptr, FCNAME, mpi_errno );
    goto fn_exit;
    /* --END ERROR HANDLING-- */
}