HP-MPI V2.3 for Linux Release Note

A.2 Collective Communication
int MPI_AllgatherL(void* sendbuf, MPI_Aint sendcount, MPI_Datatype sendtype,
void* recvbuf, MPI_Aint recvcount, MPI_Datatype recvtype, MPI_Comm comm)
IN sendbuf starting address of send buffer (choice)
IN sendcount number of elements in send buffer
IN sendtype data type of send buffer elements (handle)
OUT recvbuf address of receive buffer (choice)
IN recvcount number of elements received from any process
IN recvtype data type of receive buffer elements (handle)
IN comm communicator (handle)
int MPI_AllgathervL(void* sendbuf, MPI_Aint sendcount, MPI_Datatype sendtype,
void* recvbuf, MPI_Aint *recvcounts, int *displs, MPI_Datatype recvtype,
MPI_Comm comm)
IN sendbuf starting address of send buffer (choice)
IN sendcount number of elements in send buffer
IN sendtype data type of send buffer elements (handle)
OUT recvbuf address of receive buffer (choice)
IN recvcounts Array containing the number of elements that are
received from each process
IN displs Array of displacements relative to recvbuf
IN recvtype data type of receive buffer elements (handle)
IN comm communicator (handle)
int MPI_AllreduceL(void* sendbuf, void* recvbuf, MPI_Aint count, MPI_Datatype
datatype, MPI_Op op, MPI_Comm comm)
IN sendbuf starting address of send buffer (choice)
OUT recvbuf starting address of receive buffer (choice)
IN count number of elements in send buffer
IN datatype data type of elements of send buffer (handle)
IN op operation (handle)
IN comm communicator (handle)
int MPI_AlltoallL(void* sendbuf, MPI_Aint sendcount, MPI_Datatype sendtype,
void* recvbuf, MPI_Aint recvcount, MPI_Datatype recvtype, MPI_Comm comm)
IN sendbuf starting address of send buffer (choice)
IN sendcount number of elements sent to each process
IN sendtype data type of send buffer elements (handle)
OUT recvbuf address of receive buffer (choice)
IN recvcount number of elements received from any process
IN recvtype data type of receive buffer elements (handle)
IN comm communicator (handle)
A.2 Collective Communication 43