Persistent Scatter

7.13.4. Persistent Scatter

Up: Persistent Collective Operations Next: Persistent Gather-to-all Previous: Persistent Gather

MPI_SCATTER_INIT(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, root, comm, info, request)
IN sendbuf	address of send buffer (choice, significant only at root)
IN sendcount	number of elements sent to each MPI process (non-negative integer, significant only at root)
IN sendtype	datatype of send buffer elements (handle, significant only at root)
OUT recvbuf	address of receive buffer (choice)
IN recvcount	number of elements in receive buffer (non-negative integer)
IN recvtype	datatype of receive buffer elements (handle)
IN root	rank of sending MPI process (integer)
IN comm	communicator (handle)
IN info	info argument (handle)
OUT request	communication request (handle)

C binding
int MPI_Scatter_init(const void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf, int recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm, MPI_Info info, MPI_Request *request) int MPI_Scatter_init_c(const void *sendbuf, MPI_Count sendcount, MPI_Datatype sendtype, void *recvbuf, MPI_Count recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm, MPI_Info info, MPI_Request *request) Fortran 2008 binding
MPI_Scatter_init(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, root, comm, info, request, ierror) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER, INTENT(IN) :: sendcount, recvcount, root 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_Scatter_init(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, root, 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 INTEGER, INTENT(IN) :: root 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_SCATTER_INIT(SENDBUF, SENDCOUNT, SENDTYPE, RECVBUF, RECVCOUNT, RECVTYPE, ROOT, COMM, INFO, REQUEST, IERROR) <type> SENDBUF(*), RECVBUF(*) INTEGER SENDCOUNT, SENDTYPE, RECVCOUNT, RECVTYPE, ROOT, COMM, INFO, REQUEST, IERROR

Creates a persistent collective communication request for the scatter operation.

MPI_SCATTERV_INIT(sendbuf, sendcounts, displs, sendtype, recvbuf, recvcount, recvtype, root, comm, info, request)
IN sendbuf	address of send buffer (choice, significant only at root)
IN sendcounts	nonnegative integer array (of length group size) specifying the number of elements to send to each MPI process (significant only at root)
IN displs	integer array (of length group size). Entry i specifies the displacement (relative to sendbuf) from which to take the outgoing data to MPI process i (significant only at root)
IN sendtype	datatype of send buffer elements (handle, significant only at root)
OUT recvbuf	address of receive buffer (choice, significant only at root)
IN recvcount	number of elements in receive buffer (non-negative integer)
IN recvtype	datatype of receive buffer elements (handle)
IN root	rank of sending MPI process (integer)
IN comm	communicator (handle)
IN info	info argument (handle)
OUT request	communication request (handle)

C binding
int MPI_Scatterv_init(const void *sendbuf, const int sendcounts[], const int displs[], MPI_Datatype sendtype, void *recvbuf, int recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm, MPI_Info info, MPI_Request *request) int MPI_Scatterv_init_c(const void *sendbuf, const MPI_Count sendcounts[], const MPI_Aint displs[], MPI_Datatype sendtype, void *recvbuf, MPI_Count recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm, MPI_Info info, MPI_Request *request) Fortran 2008 binding
MPI_Scatterv_init(sendbuf, sendcounts, displs, sendtype, recvbuf, recvcount, recvtype, root, comm, info, request, ierror) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER, INTENT(IN), ASYNCHRONOUS :: sendcounts(*), displs(*) TYPE(MPI_Datatype), INTENT(IN) :: sendtype, recvtype TYPE(*), DIMENSION(..), ASYNCHRONOUS :: recvbuf INTEGER, INTENT(IN) :: recvcount, root TYPE(MPI_Comm), INTENT(IN) :: comm TYPE(MPI_Info), INTENT(IN) :: info TYPE(MPI_Request), INTENT(OUT) :: request INTEGER, OPTIONAL, INTENT(OUT) :: ierror MPI_Scatterv_init(sendbuf, sendcounts, displs, sendtype, recvbuf, recvcount, recvtype, root, comm, info, request, ierror) !(_c) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN), ASYNCHRONOUS :: sendcounts(*) INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(IN), ASYNCHRONOUS :: displs(*) TYPE(MPI_Datatype), INTENT(IN) :: sendtype, recvtype TYPE(*), DIMENSION(..), ASYNCHRONOUS :: recvbuf INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN) :: recvcount INTEGER, INTENT(IN) :: root 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_SCATTERV_INIT(SENDBUF, SENDCOUNTS, DISPLS, SENDTYPE, RECVBUF, RECVCOUNT, RECVTYPE, ROOT, COMM, INFO, REQUEST, IERROR) <type> SENDBUF(*), RECVBUF(*) INTEGER SENDCOUNTS(*), DISPLS(*), SENDTYPE, RECVCOUNT, RECVTYPE, ROOT, COMM, INFO, REQUEST, IERROR

Creates a persistent collective communication request for the scatterv operation.

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