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Intel documentation indicates that the optimization parameters used with -O3 can change between versions of the compiler. I would like to evaluate the difference in optimizations between v16.3 and v17. Is there a simple way to arrive at the options used in a similar fashion that gcc allows with the options shown in my Subject line?
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Hi, Mark
You can use -qopt-report option to generate optimization report which will tell you what optimizations apply on each function or loops.
See reference from: https://software.intel.com/en-us/node/522935
Or to get a list of options actually used, you can try '-#'
See if this helps.
Thank you.
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Yuan,
Thanks! The '-#' option gave me the output I want. Now I'm stuck trying to figure out what the following mean since there's no existing documentation for them:
-mGLOB_extended_instructions=
-mGLOB_advanced_optim=
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