[CentOS] Cluster server options?

Bent Terp wrote:
>> 2 minutes of frantic googling led to this project:
>> http://www.kerrighed.org which at least seems to be alive, but I
>> haven't tried it myself.
>>     
> You might also want to look at this one: http://www.xtreemos.org/
>   

those are both grid solutions.  as any high performance clustering 
solution inherently must be.  You still have to program with MPI or 
anther grid-oriented programming methodology and break your workload up 
into parallel chunks

The OP specifically stated he wants his cluster to function as a single 
processor, so a single conventionally written (and presumably 
single-threaded)  program would run faster, and thats just not possible.