# Package mpi

- Interface Summary
  Interface | Description
  --- | ---
  Freeable | Objects freeables must be freed calling the method free.

- Class Summary
  Class | Description
  --- | ---
  CartComm | Communicator with cartesian structure.
  CartParms | Cartesian topology information associated with a communicator.
  Comm | The `Comm` class represents communicators.
  Count | This class represents `MPI_Count`.
  Datatype | The `Datatype` class represents `MPI_Datatype` handles.
  DistGraphNeighbors | Adjacency information for a distributed graph topology.
  DoubleComplex | This class wraps a complex number stored in a buffer.
  DoubleInt | Struct class for `MPI.DOUBLE_INT` datatype.
  Errhandler | Error handler.
  File | This class represents `MPI_File`.
  FileView | This class represents file views.
  FloatComplex | This class wraps a complex number stored in a buffer.
  FloatInt | Struct class for `MPI.FLOAT_INT` datatype.
  GraphComm | Communicator with graph structure.
  GraphParms | Graph topology information associated with a communicator.
  Group | This class represents `MPI_Group`.
  Info | This class represents `MPI_Info`.
  Int2 | Struct class for `MPI.INT2` datatype.
  Intercomm | This class represents intercommunicators.
  Intracomm | This class represents intracommunicator.
  LongInt | Struct class for `MPI.LONG_INT` datatype.
  Message | This class represents `MPI_Message`.
  MPI | MPI environment.
  Op | This class represents `MPI_Op`.
  Prequest | Persistent request object.
  Request | Request object.
  ShiftParms | Source and destination ranks for "shift" communication.
  ShortInt | Struct class for `MPI.SHORT_INT` datatype.
  Status | This class represents `MPI_Status`.
  Struct | Base class for defining struct data types.
  UserFunction | Java equivalent of the `MPI_USER_FUNCTION`.
  Version | Version and Subversion for MPI
  Win | This class represents `MPI_Win`.

- Exception Summary
  Exception | Description
  --- | ---
  MPIException | Signals that an MPI exception of some sort has occurred.