On 02/26/2016 05:28 PM, Ranjan Maitra wrote:
Thanks again!
OK, is there a way to calculate the FLOP instructions in C?
What do you mean "calculate the FLOP instructions"? Are you trying to
evaluate an algorithm or benchmark an implementation? These are two
different things. You can compare algorithms theoretically or by
measurement, but only measurement will work for implementations. You
can count each floating point instruction generated by the compiler by
looking at the binary code, but maybe you want to count every
instruction during execution, or see which instructions take longer, or
just measure the total execution time of the algorithm on a given set
of input.
Indeed, I wanted to measure the total execution time of the algorithms (i.e.
difference in CPU time after and before the function executing the algorithm is
called) and independent of extraneous issues such as what other process is
running at some time, etc. I wanted to see if, in some case, some of the
available theoretical guarantees actually hold or not.
Thanks again!
Best wishes,
Ranjan
Did you see my reply?
It shows you the basics of what you need to use
in order to get exactly what you want.
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