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Entering a Parallel Universe
![[article image]](/system/assets/0000/1310/080609_CACMpg15_Entering_a_Parallel.large.jpg?1251209884&1251209883 "University of Illinois at Urbana-Champaign's Universal Parallel Computing Research Center")
Photograph by Aaron Tersteeg
The promise of parallel computing has run afoul of the harsh reality of Amdahl's Law, which puts a ceiling on the benefit of converting sequential code to parallel code. The upshot is that parallelism will not necessarily reap rewards.
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