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gammapy / gamma-speed

Measure gamma-ray data analysis speed (focus on multi-core likelihood fitting speed-ups)
https://gamma-speed.readthedocs.org/
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Document compilers used #2

Open cdeil opened 11 years ago

cdeil commented 11 years ago

We want to try out different C++ compilers and see if some are faster: gcc, clang, icc (Intel) Can you summarize the versions on the different computers we use?

The intel compiler is free for non-commercial use ... can you install it on the Ubuntu machines? http://software.intel.com/en-us/non-commercial-software-development

cdeil commented 11 years ago

For the Intel compiler we should also try the -fast option. This means the binary will only run on very similar machines (lfs1 and lfc301 are compatible), but should give better floating point performance. We should also check whether it still gives correct results, apparently this is not the case for some applications.