If you are running service oriented architecture (SOA) services on an HPC Pack 2008 R2 cluster, the 2012 release of HPC Pack requires the SOA services to be compiled with .NET Framework 4 or a later version. If you have any SOA services compiled with a version of .NET Framework earlier than 4, it may not be able to run on HPC Pack 2012.
There are two ways to solve the issue:
<?xml version="1.0" encoding="utf-8" ?>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
With the change, the legacy SOA services should run on HPC Pack 2012. If you have any questions, head over to the Windows HPC Discussion forums and let us know.