Journal Name:
- International Journal of Science and Engineering Investigations
Key Words:
Author Name | University of Author |
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Abstract (2. Language):
Using Amdahl’s Law it is possible to estimate the
upper bound for parallel speedup. In deriving the Law it is
assumed that the considered application can use limitless
number of processors so that the processing time of the code
parallel fraction can be reduced to 0. In real applications it is
more useful to calculate the shortest parallel computing time
and the required number of processors. This can be
accomplished by using the ideas related to the methods of
Program Evaluation and Review Technique and critical path in
directed acyclic graphs representing parallel algorithms. We
can calculate the number of processors needed to process
parallel code in the shortest time. We call this number the
critical number of processors.
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