Persistent Neighborhood Alltoall

9.8.2. Persistent Neighborhood Alltoall

Up: Persistent Neighborhood Communication on Process Topologies Next: An Application Example Previous: Persistent Neighborhood Gather

MPI_NEIGHBOR_ALLTOALL_INIT(sendbuf, sendcount, sendtype, recvbuf, recvcount, recvtype, comm, info, request)
IN sendbuf	starting address of send buffer (choice)
IN sendcount	number of elements sent to each neighbor (non-negative integer)
IN sendtype	datatype of send buffer elements (handle)
OUT recvbuf	starting address of receive buffer (choice)
IN recvcount	number of elements received from each neighbor (non-negative integer)
IN recvtype	datatype of receive buffer elements (handle)
IN comm	communicator with associated virtual topology (handle)
IN info	info argument (handle)
OUT request	communication request (handle)

C binding
int MPI_Neighbor_alltoall_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_Neighbor_alltoall_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_Neighbor_alltoall_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_Neighbor_alltoall_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_NEIGHBOR_ALLTOALL_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 neighborhood alltoall operation.

MPI_NEIGHBOR_ALLTOALLV_INIT(sendbuf, sendcounts, sdispls, sendtype, recvbuf, recvcounts, rdispls, recvtype, comm, info, request)
IN sendbuf	starting address of send buffer (choice)
IN sendcounts	nonnegative integer array (of length outdegree) specifying the number of elements to send to each neighbor
IN sdispls	integer array (of length outdegree). Entry j specifies the displacement (relative to sendbuf) from which send the outgoing data to neighbor j
IN sendtype	datatype of send buffer elements (handle)
OUT recvbuf	starting address of receive buffer (choice)
IN recvcounts	nonnegative integer array (of length indegree) specifying the number of elements that are received from each neighbor
IN rdispls	integer array (of length indegree). Entry i specifies the displacement (relative to recvbuf) at which to place the incoming data from neighbor i
IN recvtype	datatype of receive buffer elements (handle)
IN comm	communicator with associated virtual topology (handle)
IN info	info argument (handle)
OUT request	communication request (handle)

C binding
int MPI_Neighbor_alltoallv_init(const void *sendbuf, const int sendcounts[], const int sdispls[], MPI_Datatype sendtype, void *recvbuf, const int recvcounts[], const int rdispls[], MPI_Datatype recvtype, MPI_Comm comm, MPI_Info info, MPI_Request *request) int MPI_Neighbor_alltoallv_init_c(const void *sendbuf, const MPI_Count sendcounts[], const MPI_Aint sdispls[], MPI_Datatype sendtype, void *recvbuf, const MPI_Count recvcounts[], const MPI_Aint rdispls[], MPI_Datatype recvtype, MPI_Comm comm, MPI_Info info, MPI_Request *request) Fortran 2008 binding
MPI_Neighbor_alltoallv_init(sendbuf, sendcounts, sdispls, sendtype, recvbuf, recvcounts, rdispls, recvtype, comm, info, request, ierror) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER, INTENT(IN), ASYNCHRONOUS :: sendcounts(*), sdispls(*), recvcounts(*), rdispls(*) 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_Neighbor_alltoallv_init(sendbuf, sendcounts, sdispls, sendtype, recvbuf, recvcounts, rdispls, recvtype, comm, info, request, ierror) !(_c) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN), ASYNCHRONOUS :: sendcounts(*), recvcounts(*) INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(IN), ASYNCHRONOUS :: sdispls(*), rdispls(*) 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_NEIGHBOR_ALLTOALLV_INIT(SENDBUF, SENDCOUNTS, SDISPLS, SENDTYPE, RECVBUF, RECVCOUNTS, RDISPLS, RECVTYPE, COMM, INFO, REQUEST, IERROR) <type> SENDBUF(*), RECVBUF(*) INTEGER SENDCOUNTS(*), SDISPLS(*), SENDTYPE, RECVCOUNTS(*), RDISPLS(*), RECVTYPE, COMM, INFO, REQUEST, IERROR

Creates a persistent collective communication request for the neighborhood alltoallv operation.

MPI_NEIGHBOR_ALLTOALLW_INIT(sendbuf, sendcounts, sdispls, sendtypes, recvbuf, recvcounts, rdispls, recvtypes, comm, info, request)
IN sendbuf	starting address of send buffer (choice)
IN sendcounts	nonnegative integer array (of length outdegree) specifying the number of elements to send to each neighbor
IN sdispls	integer array (of length outdegree). Entry j specifies the displacement in bytes (relative to sendbuf) from which to take the outgoing data destined for neighbor j (array of integers)
IN sendtypes	array of datatypes (of length outdegree). Entry j specifies the type of data to send to neighbor j (array of handles)
OUT recvbuf	starting address of receive buffer (choice)
IN recvcounts	nonnegative integer array (of length indegree) specifying the number of elements that are received from each neighbor
IN rdispls	integer array (of length indegree). Entry i specifies the displacement in bytes (relative to recvbuf) at which to place the incoming data from neighbor i (array of integers)
IN recvtypes	array of datatypes (of length indegree). Entry i specifies the type of data received from neighbor i (array of handles)
IN comm	communicator with associated virtual topology (handle)
IN info	info argument (handle)
OUT request	communication request (handle)

C binding
int MPI_Neighbor_alltoallw_init(const void *sendbuf, const int sendcounts[], const MPI_Aint sdispls[], const MPI_Datatype sendtypes[], void *recvbuf, const int recvcounts[], const MPI_Aint rdispls[], const MPI_Datatype recvtypes[], MPI_Comm comm, MPI_Info info, MPI_Request *request) int MPI_Neighbor_alltoallw_init_c(const void *sendbuf, const MPI_Count sendcounts[], const MPI_Aint sdispls[], const MPI_Datatype sendtypes[], void *recvbuf, const MPI_Count recvcounts[], const MPI_Aint rdispls[], const MPI_Datatype recvtypes[], MPI_Comm comm, MPI_Info info, MPI_Request *request) Fortran 2008 binding
MPI_Neighbor_alltoallw_init(sendbuf, sendcounts, sdispls, sendtypes, recvbuf, recvcounts, rdispls, recvtypes, comm, info, request, ierror) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER, INTENT(IN), ASYNCHRONOUS :: sendcounts(*), recvcounts(*) INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(IN), ASYNCHRONOUS :: sdispls(*), rdispls(*) TYPE(MPI_Datatype), INTENT(IN), ASYNCHRONOUS :: sendtypes(*), recvtypes(*) 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_Neighbor_alltoallw_init(sendbuf, sendcounts, sdispls, sendtypes, recvbuf, recvcounts, rdispls, recvtypes, comm, info, request, ierror) !(_c) TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN), ASYNCHRONOUS :: sendcounts(*), recvcounts(*) INTEGER(KIND=MPI_ADDRESS_KIND), INTENT(IN), ASYNCHRONOUS :: sdispls(*), rdispls(*) TYPE(MPI_Datatype), INTENT(IN), ASYNCHRONOUS :: sendtypes(*), recvtypes(*) 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_NEIGHBOR_ALLTOALLW_INIT(SENDBUF, SENDCOUNTS, SDISPLS, SENDTYPES, RECVBUF, RECVCOUNTS, RDISPLS, RECVTYPES, COMM, INFO, REQUEST, IERROR) <type> SENDBUF(*), RECVBUF(*) INTEGER SENDCOUNTS(*), SENDTYPES(*), RECVCOUNTS(*), RECVTYPES(*), COMM, INFO, REQUEST, IERROR INTEGER(KIND=MPI_ADDRESS_KIND) SDISPLS(*), RDISPLS(*)

Creates a persistent collective communication request for the neighborhood alltoallw operation.

Up: Persistent Neighborhood Communication on Process Topologies Next: An Application Example Previous: Persistent Neighborhood Gather

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