Persistent All-Gather

7.13.5. Persistent All-Gather

Up: Persistent Collective Operations Next: Persistent All-to-All Scatter/Gather Previous: Persistent Scatter

MPI_ALLGATHER_INIT(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, comm, info, request)
IN sendbuf	starting address of send buffer (choice)
IN sendcount	number of elements in send buffer (nonnegative integer)
IN sendtype	datatype of send buffer elements (handle)
OUT recvbuf	address of receive buffer (choice)
IN recvcount	number of elements received from each MPI process (nonnegative integer)
IN recvtype	datatype of receive buffer elements (handle)
IN comm	communicator (handle)
IN info	info argument (handle)
OUT request	communication request (handle)

C binding
int MPI_Allgather_init(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf, int recvcount, MPI_Datatype recvtype, MPI_Comm comm, MPI_Info info, MPI_Request *request) int MPI_Allgather_init_c(const void *sendbuf, MPI_Count sendcount, MPI_Datatype sendtype, void *recvbuf, MPI_Count recvcount, MPI_Datatype recvtype, MPI_Comm comm, MPI_Info info, MPI_Request *request) Fortran 2008 binding
MPI_Allgather_init(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, comm, info, request, ierror) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER, INTENT(IN) :: sendcount, recvcount TYPE(MPI_Datatype), INTENT(IN) :: sendtype, recvtype TYPE(*), DIMENSION(..), ASYNCHRONOUS :: recvbuf TYPE(MPI_Comm), INTENT(IN) :: comm TYPE(MPI_Info), INTENT(IN) :: info TYPE(MPI_Request), INTENT(OUT) :: request INTEGER, OPTIONAL, INTENT(OUT) :: ierror MPI_Allgather_init(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, comm, info, request, ierror) !(_c) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN) :: sendcount, recvcount TYPE(MPI_Datatype), INTENT(IN) :: sendtype, recvtype TYPE(*), DIMENSION(..), ASYNCHRONOUS :: recvbuf TYPE(MPI_Comm), INTENT(IN) :: comm TYPE(MPI_Info), INTENT(IN) :: info TYPE(MPI_Request), INTENT(OUT) :: request INTEGER, OPTIONAL, INTENT(OUT) :: ierror Fortran binding
MPI_ALLGATHER_INIT(SENDBUF, SENDCOUNT, SENDTYPE, RECVBUF, RECVCOUNT, RECVTYPE, COMM, INFO, REQUEST, IERROR) <type> SENDBUF(*), RECVBUF(*) INTEGER SENDCOUNT, SENDTYPE, RECVCOUNT, RECVTYPE, COMM, INFO, REQUEST, IERROR

Creates a persistent collective communication request for the allgather operation (see Section All-Gather).

MPI_ALLGATHERV_INIT(sendbuf, sendcount, sendtype, recvbuf, recvcounts, displs, recvtype, comm, info, request)
IN sendbuf	starting address of send buffer (choice)
IN sendcount	number of elements in send buffer (nonnegative integer)
IN sendtype	datatype of send buffer elements (handle)
OUT recvbuf	address of receive buffer (choice)
IN recvcounts	nonnegative integer array (of length group size) containing the number of elements that are received from each MPI process
IN displs	integer array (of length group size). Entry i specifies the displacement (relative to recvbuf) at which to place the incoming data from MPI process i
IN recvtype	datatype of receive buffer elements (handle)
IN comm	communicator (handle)
IN info	info argument (handle)
OUT request	communication request (handle)

C binding
int MPI_Allgatherv_init(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf, const int recvcounts[], const int displs[], MPI_Datatype recvtype, MPI_Comm comm, MPI_Info info, MPI_Request *request) int MPI_Allgatherv_init_c(const void *sendbuf, MPI_Count sendcount, MPI_Datatype sendtype, void *recvbuf, const MPI_Count recvcounts[], const MPI_Aint displs[], MPI_Datatype recvtype, MPI_Comm comm, MPI_Info info, MPI_Request *request) Fortran 2008 binding
MPI_Allgatherv_init(sendbuf, sendcount, sendtype, recvbuf, recvcounts, displs, recvtype, comm, info, request, ierror) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER, INTENT(IN) :: sendcount TYPE(MPI_Datatype), INTENT(IN) :: sendtype, recvtype TYPE(*), DIMENSION(..), ASYNCHRONOUS :: recvbuf INTEGER, INTENT(IN), ASYNCHRONOUS :: recvcounts(*), displs(*) TYPE(MPI_Comm), INTENT(IN) :: comm TYPE(MPI_Info), INTENT(IN) :: info TYPE(MPI_Request), INTENT(OUT) :: request INTEGER, OPTIONAL, INTENT(OUT) :: ierror MPI_Allgatherv_init(sendbuf, sendcount, sendtype, recvbuf, recvcounts, displs, recvtype, comm, info, request, ierror) !(_c) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN) :: sendcount TYPE(MPI_Datatype), INTENT(IN) :: sendtype, recvtype TYPE(*), DIMENSION(..), ASYNCHRONOUS :: recvbuf INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN), ASYNCHRONOUS :: recvcounts(*) INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(IN), ASYNCHRONOUS :: displs(*) TYPE(MPI_Comm), INTENT(IN) :: comm TYPE(MPI_Info), INTENT(IN) :: info TYPE(MPI_Request), INTENT(OUT) :: request INTEGER, OPTIONAL, INTENT(OUT) :: ierror Fortran binding
MPI_ALLGATHERV_INIT(SENDBUF, SENDCOUNT, SENDTYPE, RECVBUF, RECVCOUNTS, DISPLS, RECVTYPE, COMM, INFO, REQUEST, IERROR) <type> SENDBUF(*), RECVBUF(*) INTEGER SENDCOUNT, SENDTYPE, RECVCOUNTS(*), DISPLS(*), RECVTYPE, COMM, INFO, REQUEST, IERROR

Creates a persistent collective communication request for the allgatherv operation (see Section All-Gather).

Up: Persistent Collective Operations Next: Persistent All-to-All Scatter/Gather Previous: Persistent Scatter

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