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Why a function's GFLOPS changed when turned on callstack feature in roofline?

Frank_Fu
Beginner
241 Views

Hi,

I am wondering why this a function's GFLOPS changed in the roofline, when I select the "With callstacks" feature.

Here is the screenshot without selecting the "callstacks".

And we see that the red dot, which is the bgk function, shows it has 2.39GFLOPS.

1.png

 

Now after selecting the "With Callstacks", I find that the "bgk" function becomes 0.003 GFLOPS

Frank_Fu_0-1598849083863.png

 

2.png

 

What does this mean?

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Frank_Fu
Beginner
236 Views

OK, I see it shows the Total GFLOPS = Total GFLOP / Total Elapsed time

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