Article 49KR8 Improving HPC Performance with the Roofline Model

Improving HPC Performance with the Roofline Model

by
Rich Brueckner
from High-Performance Computing News Analysis | insideHPC on (#49KR8)
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"When we are optimizing our objective is to determine which hardware resource the code is exhausting (there must be one, otherwise it would run faster!), and then see how to modify the code to reduce its need for that resource. It is therefore essential to understand the maximum theoretical performance of that aspect of the machine, since if we are already achieving the peak performance we should give up, or choose a different algorithm."

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