Buffer allocation and usage

void MPI.Buffer_attach(byte [] buffer)

Java binding of the MPI operation MPI_BUFFER_ATTACH. The value of size is taken to be size of the buffer argument.

byte [] MPI.Buffer_detach()

Java binding of the MPI operation MPI_BUFFER_DETACH. The return value is buffer. The size of the returned arrray is size.

The constant MPI_BSEND_OVERHEAD is available as MPI.BSEND_OVERHEAD.