/**
* GB distributed client.
*
* @param rank of the MPI where the server runs on.
* @throws IOException
*/
public void clientPart(int rank) throws IOException, MPIException {
if (rank != 0) {
throw new UnsupportedOperationException("only master at rank 0 implemented: " + rank);
}
Comm engine = MPIEngine.getCommunicator();
DistHashTableMPI<Integer, GenPolynomial<C>> theList =
new DistHashTableMPI<Integer, GenPolynomial<C>>();
theList.init();
MPIChannel chan = new MPIChannel(engine, rank);
MPIReducerClient<C> R = new MPIReducerClient<C>(chan, theList);
R.run();
chan.close();
theList.terminate();
return;
}
/**
* Constructor.
*
* @param threads number of threads to use.
* @param pool ThreadPool to use.
* @param pl pair selection strategy
*/
public GroebnerBaseDistributedMPI(int threads, ThreadPool pool, PairList<C> pl)
throws IOException {
super(new ReductionPar<C>(), pl);
int size = 0;
try {
engine = MPIEngine.getCommunicator();
size = engine.Size();
} catch (MPIException e) {
throw new IOException(e);
}
if (size < 2) {
throw new IllegalArgumentException("Minimal 2 MPI processes required, not " + size);
}
if (threads != size || pool.getNumber() != size) {
throw new IllegalArgumentException(
"threads != size: " + threads + " != " + size + ", #pool " + pool.getNumber());
}
this.threads = threads;
this.pool = pool;
}