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count floating point operations with VTune

benarisse
Beginner
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I need to count floating point operations executed in one of my c programs. Therefore I started a new Sampling Activity with the event FP_COMP_OPS_EXE.X87. Unfortunalety the number of counted FLOPS was much to few. I am currently working on an Intel Core i7 920 (2.67 GHz). My OS is Ubuntu 8.10 (Kernel Linux 2.6.27-11-generic).
Do you have any idea?
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TimP
Honored Contributor III
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I think you might benefit from the topic FLOPS count discussed recently here in the forum.
Default options of current compilers for Core i7 use SSE2 rather than x87 instructions.

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Vladimir_T_Intel
Moderator
366 Views
Quoting - benarisse
I need to count floating point operations executed in one of my c programs. Therefore I started a new Sampling Activity with the event FP_COMP_OPS_EXE.X87. Unfortunalety the number of counted FLOPS was much to few. I am currently working on an Intel Core i7 920 (2.67 GHz). My OS is Ubuntu 8.10 (Kernel Linux 2.6.27-11-generic).
Do you have any idea?
I think you might benefit from the topic FLOPS countdiscussed recently here in the forum.
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TimP
Honored Contributor III
367 Views
I think you might benefit from the topic FLOPS count discussed recently here in the forum.
Default options of current compilers for Core i7 use SSE2 rather than x87 instructions.
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benarisse
Beginner
366 Views
Quoting - tim18
Default options of current compilers for Core i7 use SSE2 rather than x87 instructions.

Thanks for your help!
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