7.13.12. Persistent Exclusive Scan

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MPI_EXSCAN_INIT(sendbuf, recvbuf, count, datatype, op, comm, info, request)
IN sendbufstarting address of send buffer (choice)
OUT recvbufstarting address of receive buffer (choice)
IN countnumber of elements in input buffer (nonnegative integer)
IN datatypedatatype of elements of input buffer (handle)
IN opoperation (handle)
IN commintra-communicator (handle)
IN infoinfo argument (handle)
OUT requestcommunication request (handle)
C binding
int MPI_Exscan_init(const void *sendbuf, void *recvbuf, int count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm, MPI_Info info, MPI_Request *request)
int MPI_Exscan_init_c(const void *sendbuf, void *recvbuf, MPI_Count count, MPI_Datatype datatype, MPI_Op op, MPI_Comm comm, MPI_Info info, MPI_Request *request)
Fortran 2008 binding
MPI_Exscan_init(sendbuf, recvbuf, count, datatype, op, comm, info, request, ierror)
TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf
TYPE(*), DIMENSION(..), ASYNCHRONOUS :: recvbuf
INTEGER, INTENT(IN) :: count
TYPE(MPI_Datatype), INTENT(IN) :: datatype
TYPE(MPI_Op), INTENT(IN) :: op
TYPE(MPI_Comm), INTENT(IN) :: comm
TYPE(MPI_Info), INTENT(IN) :: info
TYPE(MPI_Request), INTENT(OUT) :: request
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
MPI_Exscan_init(sendbuf, recvbuf, count, datatype, op, comm, info, request, ierror) !(_c)
TYPE(*), DIMENSION(..), INTENT(IN), ASYNCHRONOUS :: sendbuf
TYPE(*), DIMENSION(..), ASYNCHRONOUS :: recvbuf
INTEGER(KIND=MPI_COUNT_KIND), INTENT(IN) :: count
TYPE(MPI_Datatype), INTENT(IN) :: datatype
TYPE(MPI_Op), INTENT(IN) :: op
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_EXSCAN_INIT(SENDBUF, RECVBUF, COUNT, DATATYPE, OP, COMM, INFO, REQUEST, IERROR)
<type> SENDBUF(*), RECVBUF(*)
INTEGER COUNT, DATATYPE, OP, COMM, INFO, REQUEST, IERROR

Creates a persistent collective communication request for the exclusive scan operation (see Section Exclusive Scan).

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