OpenACC Tutorial - Profiling: Difference between revisions

OpenACC Tutorial - Profiling (view source)

103 bytes added , 1 year ago

Interpretation of Intensity

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-== Computational Intensity  == <!--T:19-->
+=== Interpretation of the Compiler Feedback === <!--T:19-->
-Computational Intensity of a loop is a measure of how much work is being done compared to memory operations.
+The ''Computational Intensity'' of a loop is a measure of how much work is being done compared to memory operations.
+Basically:
 <!--T:20-->
-'''Computation Intensity = Compute Operations / Memory Operations'''
+<math>\mbox{Computational Intensity} = \frac{\mbox{Compute Operations}}{\mbox{Memory Operations}}</math>
 <!--T:21-->
-Computational Intensity of 1.0 or greater suggests that the loop might run well on a GPU.
+In the compiler feedback, an <code>Intensity</code> <math>\ge</math> 1.0 suggests that the loop might run well on a GPU.
 == Understanding the code  == <!--T:22-->