 ##  [Gustafson's Law](/gustafsons-law) 

  ##  [Gustafson's Law](https://natural.quantumdictionary.io/gustafsons-law-0) 

  
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**Natural &amp; Formal Sciences Dictionary**

 
Definition

A scaling principle that asserts achievable parallel speedup can increase with problem size by keeping total execution time roughly constant while enlarging the parallel portion; it emphasizes weak scaling behavior where larger problems expose more parallel work.