OpenACC Tutorial - Profiling: Difference between revisions

OpenACC Tutorial - Profiling (view source)

57 bytes added , 1 year ago

The Visual Profiler only works with CUDA C/C++ or OpenACC codes

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 One graphical profiler available for OpenACC applications is the
 [https://developer.nvidia.com/nvidia-visual-profiler NVIDIA Visual Profiler (NVVP)].
-It's a cross-platform analyzing tool for code written with OpenACC and CUDA C/C++ instructions.
+It's a cross-platform analyzing tool '''for codes written with OpenACC and CUDA C/C++ instructions'''.
+Consequently, if the executable is not using the GPU, you will get no result from this profiler.
 When [[Visualization/en#Remote_windows_with_X11-forwarding|X11 is forwarded to an X-Server]], or when using a [[VNC|Linux desktop environment]] (also via [[JupyterHub#Desktop|JupyterHub]] with two (2) CPU cores, 5000M of memory and one (1) GPU),
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 # Select ''File > New Session'', or click on the corresponding button in the toolbar.
 # Click on the ''Browse'' button at the right of the ''File'' path editor.
-## Browse to the <code>cq-formation-openacc/cpp</code> directory.
+## Change directory if needed.
-## Select the executable <code>cg.x</code> that was compiled in a previous section. Then click ''OK''.
+## Select an executable built from codes written with OpenACC and CUDA C/C++ instructions.
 # Below the ''Arguments'' editor, select the profiling option ''Profile current process only''.
 # Click ''Next >'' to review additional profiling options.