Buffer allocation and usage

void MPI.bufferAttach(byte [] buffer)

buffer

buffer array

Provides to MPI a buffer in user's memory to be used for buffering outgoing messages. Java binding of the MPI operation MPI_BUFFER_ATTACH.

byte [] MPI.bufferDetach()

returns:

buffer array

Detach the buffer currently associated with MPI. Java binding of the MPI operation MPI_BUFFER_DETACH. The MPI constant MPI_BSEND_OVERHEAD is available as MPI.BSEND_OVERHEAD.