What is the recommended way to calculate FLOP?

[zenineasa]

I have been looking to see if there is a way to extract information on the number of floating point operations taken to solve a problem. Is there a direct way to do that in IPOPT? If otherwise, is there a recommended method to do the same?

[svigerske]

There is no direct way to do that. Ipopt itself doesn't count this. You would have to rely on the CPU to do that for you. A tool like per may help to get the counts for a process:

• https://bnikolic.co.uk/blog/hpc-howto-measure-flops
• https://bnikolic.co.uk/blog/python/flops/2019/09/27/python-counting-events.html
• https://stackoverflow.com/questions/4335011/measuring-flops-of-an-application-with-the-linux-perf-tool