On a multiprocessor system that is running a 64-bit version of Windows Server 2003, CPU 0 approaches a 100-percent and FLUENT hangs
Running FLUENT on a multiprocessor system that is running a 64-bit version of Windows Server 2003, CPU 0 approaches a 100-percent CPU Usage reading earlier than do the other CPUs on the system. A tool such as Performance Monitor may show that much of the CPU 0 resources are used at the Deferred Procedure Call (DPC) level. You do not receive an error message. After it seems to initialize, it will utilize one processor fully, and the system will completely lock up after five minutes or so.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article (http://support.microsoft.com/kb/908675). Only apply it to systems that are experiencing this specific problem.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix.