http://blogs.msdn.com/b/hpctrekker/archive/2008/07/03/microsoft-mpi-stack-explained.aspxThe Microsoft HPC solution comes with an enhanced MPI stack. For sure, it is not the only MPI stack that runs on windows. ANL has an mpich2 mpi stack, so does HP. How does MSMPI differ from the ANL one, of which it is based on? 1. MSMPI comes in bothen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/hpctrekker/archive/2008/07/03/microsoft-mpi-stack-explained.aspx#8849814Tue, 12 Aug 2008 06:28:05 GMT91d46819-8472-40ad-a661-2c78acb4018c:8849814News<p>Later this year Microsoft ships the second version of the Windows HPC Server SKU, Windows HPC Server</p> <img src="http://blogs.msdn.com/aggbug.aspx?PostID=8849814" width="1" height="1">http://blogs.msdn.com/b/hpctrekker/archive/2008/07/03/microsoft-mpi-stack-explained.aspx#8849399Tue, 12 Aug 2008 02:00:31 GMT91d46819-8472-40ad-a661-2c78acb4018c:8849399VolkerW's WebLog<p>Later this year Microsoft ships the second version of the Windows HPC Server SKU, Windows HPC Server</p> <img src="http://blogs.msdn.com/aggbug.aspx?PostID=8849399" width="1" height="1">