Microsoft Compute Cluster Pack Service Pack 1 (SP1) provides improved reliability and performance for Windows compute clusters. This service pack provides support for Windows Server 2003 with Service Pack 2 (SP2) and Windows Deployment Services. In addition, this service pack supports the Compute Cluster Pack client utilities on computers running Windows Vistaâ?¢. While it can be installed on x64-based versions of Windows Server 2003 that have not been upgraded with SP2, we recommend that you upgrade to Windows Server 2003 with SP2 to take advantage of the improvements that Compute Cluster Pack SP1 provides.

Windows Compute Cluster Server 2003 brings together the power of commodity x64 (64-bit x86) computers, the ease of use and security of Active Directory directory service, and the Windows operating system to provide a security-enhanced and affordable high-performance computing (HPC) solution.