Multi-processor UNIX

[Sanjay Tikku]

I am trying to do a comparative analysis of different UNIX (and look alikes)
versions and determine which one is the most suitable as a platform for 
parallel processing work. I am thinking of either starting with SYSTEM V/BSD 
version and changing it suitably for multi-processor work or starting out with
say Mach and then modify it appropriately to suit our needs here.

If anyone has any opinion or comments on this subject it will be really helpful.

I am specifically interested in knowing:  

a) Any literature which compares SYSTEM V and BSD versions regarding their 
   adaptability for multi-processor work. 

b) Any literature on existing multi-processor systems like Mach compared
   to standard UNIX versions.

c) If anyone has strong recommendations based on this kind of work done by
   them.

Thanks in advance

sanjay
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