Pure Mpi.NET News List

New Mpi Management Service

An Mpi Managment Service will now be installed and started during installation. This service will allow a user to execute a method (for a given type and assembly) in a separate application domain.

The Mpi Mgmt Client class will allow a user to execute the method in mgmt services on machines associated with an Mpi Environment.

Files can also be copied with the client to the service machines.

See the example under Examples\VS2008\Management.

Tools for Executing Remote Processes

Starting the processes on many remote machines used to be difficult. Either you had to TS into each box and start your exe, or use additional 3rd party software . Pure Mpi.NET now comes with a remote execution utility under Install\Tools. Also included are example bat files to start all processes in parallel, and to clean up the proccesses.

Reduction Operations now on Comm object

Associative reduction operations are now supported on the communication interface. A simple summation example is below:

static int Sum(int left, int right)
{
    return left + right;
}
 
static void Main(string[] args)
{
    ProcessorGroup.Process("MPIEnvironment",
        delegate(IDictionary<string, Comm> comms)
        {
            Comm comm = comms["MPI_COMM_WORLD"];
            Console.WriteLine("Rank:{0} Result:{1}", comm.Rank, 
                comm.Reduce<int>(0, comm.Rank, Sum));
        });
}

Pure Mpi.NET on InfoQ!

Pure Mpi.NET is in the news on InfoQ - MPI for .NET. Just to clarify, Pure Mpi.NET is free to everyone to try, but if you want to use it in a commerial setting, please contact sales@purempi.net to obtain a license.

Cleaner way to begin parallel processing

A method was added to the ProcessorGroup class to help instantiating, starting, waiting, and disposing of the mpi service host threads. Along w/ using an anonymous delegate, the code cleans up rather nicely.

static void Main(string[] args)
{
    ProcessorGroup.Process("MPIEnvironment",
        delegate(IDictionary<string, Comm> comms)
        {
            Comm comm = comms["MPI_COMM_WORLD"];
            Console.WriteLine("Rank: {0}", comm.Rank);
 
            string broadcastRoot = comm.Rank.ToString();
            comm.Broadcast<string>(1, ref broadcastRoot);
            Console.WriteLine("Broadcast root: {0}", broadcastRoot);
        });
}

Pure Mpi.NET Just Released!

Version 1.0.0.0 has finally been released! Download it and give it a try.