Chapter 17

  -parallelism (p279)
  -types of parallelism
	 -micro vs macroscopic
	 -symmetric vs asymmetric
	 -fine vs coarse-grain
	 -explicit vs. implicit
  -Flynn Classification (283)
	 -SISD (conventional)
	 -MISD (fault tolerance)
	 -SIMD (vector/graphics processors)
	 -MIMD (SMP vs AMP) 
  -Challenges 
	 -The 3 C's : Communication, Coordination and Contention
	 -bottlenecks in memory, I/O, OS and largely resources