added MPI.NET

docs.it4i/software/csc.md

@@ -68,4 +68,42 @@ csharp> from f in Directory.GetFiles ("mydirectory")
 { "mydirectory/mynewfile.cs", "mydirectory/script.sh" }
 ```
 
+## MPI.NET
+
+MPI is available for mono.
+
+```csc
+using System;
+using MPI;
+
+class MPIHello
+{
+    static void Main(string[] args)
+    {
+        using (new MPI.Environment(ref args))
+        {
+           Console.WriteLine("Greetings from node {0} of {1} running on {2}",
+           Communicator.world.Rank, Communicator.world.Size,
+           MPI.Environment.ProcessorName);
+        }
+    }
+}
+```
+
+Compile and run the program on Anselm:
+
+```console
+$ qsub -I -A DD-13-5 -q qexp -l select=2:ncpus=16,walltime=00:30:00
+
+$ ml mpi.net
+
+$ mcs -out:csc.exe -reference:/apps/tools/mpi.net/1.0.0-mono-3.12.1/lib/MPI.dll csc.cs
+
+$ mpirun -n 4 mono csc.exe
+Greetings from node 2 of 4 running on cn204
+Greetings from node 0 of 4 running on cn204
+Greetings from node 3 of 4 running on cn199
+Greetings from node 1 of 4 running on cn199
+```
+
 For more informations look at [Mono documentation page](http://www.mono-project.com/docs/).