>> Having to recompile to run on single- vs dual-processor 
>machines doesn't
>> seem like it would fly.
>Oh, I don't know.  Many applications require compiling for a target 
>architecture; SQL Server, for example, won't use a 2nd 
>processor without 
>re-installation.   I'm not sure about Oracle.

Uh, that is not quite true - at leasdt not for current versions. SQL Server will pick 
up and use whatever processors the underlying OS supports. Now, depending on how you 
install the OS (Windows, that is) you may have ended up with a kernel and HAL that 
does not support multiprocessor. In this case, you have to change HAL. But you 
certainly don't have to reinstalsl SQL Server or Windows. Just a reboot (pretty normal 
when you add a CPU...)

Now, there can be licensing issues if you are in per-processor licensing, but that's a 
completely different issue. Also, the "Standard Edition" only uses up to 4 CPUs, but 
again, that's a different issue.


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