The product group has released the HPC Server 2008 Community Technology Preview (CTP). This is the next major milestone on our way to RTM. As always, the software is available via Microsoft Connect.
If you are interested in the CTP build, please visit this page on Microsoft Connect. You’ll have to provide a bit of information about yourself and any intended use. As always, the team provides newsgroup support via Microsoft Connect.
Source:→ MSDN Blogs
Windows, HPC Server, Windows HPC Server, CTP, Release