Amdahl's Law

    (Named after Gene Amdahl) If F is the fraction of
   a calculation that is sequential, and (1-F) is the fraction
   that can be parallelised, then the maximum speedup that can
   be achieved by using P processors is 1/(F+(1-F)/P).

   [Gene Amdahl, "Validity of the Single Processor Approach to
   Achieving Large-Scale Computing Capabilities", AFIPS
   Conference Proceedings, (30), pp. 483-485, 1967].

   (2002-10-16)