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Intel Parallel Studio VTune Amplifier

1,485 bytes added, 23:38, 29 November 2020
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[[File:Header.png]]
this will open this menu, allowing you to make changes to the application parameters
[[File:Benchmarking menu.png]]
 
allowing you to make changes to the application parameters in the centre box or just inherit the settings from Visual studio's settings,
 
'''HotSpot detection settings include:'''
 
'''User-mode sampling:'''
includes only this current program and is for testing code efficiency (regardless of other processes)
 
'''Hardware event based sampling:'''
includes all processes running on the current system.
 
Pressing the play button will start the benchmarking.
 
== Performance Analysis ==
 
Running the performance brings up this summary after the code finishes executing.
 
[[File:SummaryJ.png]]
 
This displays the time it took for the program to execute, what active thread took the longest, what task took the longest, how much your CPU was utilized, and (not pictured here) your run parameters and CPU info (what model CPU this test was performed on).
 
[[File:EfCPU.png]]
 
The CPU effective graph indicates how many threads the program used and it's poor,ok, and ideal performance segments can be adjusted to match the desired utilization in terms of max number of threads used at anytime ( and anything over ideal would be considered over-utilization).
 
 
== ==
 
pressing any of the tasks (or the bottom-up tab at the top) will bring up the bottom-up menu as shown below
 
[[File:Bottom-up.png]]
 
This displays the actual times spent on each thread and if you selected a task when that task takes place.
 
The CPU time is also displayed here and the brown section indicates how much each (sample rate) section used the CPU in terms of % of total utilization of the program.
== Sources ==
# [https://software.intel.com/content/www/us/en/develop/tools/vtune-profiler.html Intel VTune Profile]
# [https://software.intel.com/content/www/us/en/develop/documentation/vtune-help/top/launch/getting-started.html Installation and Features]
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