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Summary: The HelloMPI is a series of basic MPI programs designed to run on the Windows High Performance Computing MPI implementation. Setup: - Download the windows high performance computing SDK -- HPC Pack SDK: http://www.microsoft.com/downloads/details.aspx?familyid=12887DA1-9410-4A59-B903-693116BFD30E&displaylang=en - Install it to c:/WinHPC, or set the WINHPCDIR in your environment to the install directory - Make sure you have a Microsoft compiler installed. -- Windows SDK is free: http://msdn.microsoft.com/en-us/windows/bb980924.aspx -- you may also want a debugger, windbg is free as well: http://www.microsoft.com/whdc/DevTools/Debugging/default.mspx - add the compiler to your path, or run these examples in a development console -- starting a dev console if you have Visual Studio installed is usually done by running 'Visual Studio 200X Command Prompt' under the start menu. -- you can also manually run vcvars.bat: c:\Program Files\Microsoft Visual Studio 8\VC\bin\vcvars32.bat Running: from your command prompt type make <example> where <example> is something like 01: - make 01 - make PI This will compile and run the application. You can also say make run <example>: - make run 01 This will not re-compile, but will just re-run the example Notes: The examples here are only a scratch-the-surface set of things you can do with MPI, but sometimes just getting things working basically is the hardest part. Please let me know if you have any problems. Enjoy! Aaron Brady