7 ms·
Amdahl's law is not misleading. Amdahl's law shows the speed up under a fixed problem size. Gustafson simple showed that since we parallelized an aspect of a pr
by frostirosti 10y ago
Amdahl's law is not misleading. Amdahl's law shows the speed up under a fixed problem size. Gustafson simple showed that since we parallelized an aspect of a problem, we can solve larger problems with the time saved. Amdahl's law is the max for fixed problem sizes.
- frostirosti 10y agoReevaluating Amdahl's Law. http://www.johngustafson.net/pubs/pub13/amdahl.pdf http://www.johngustafson.net/pubs/pub13/amdahl.pdf
- dnautics 10y agowow even this is a bit hard to parse (and I work with John!) Basically, Gustafson's law says, "yeah but really what you're going to do with massively parallel computing is you're going to run more copies of the same program, which has a linear scaling factor".
- zzzcpan 10y agoThe misleading part is how it is used. As things change, theoretical speed up of the solution becomes irrelevant, and problems also change.