Difference between revisions of "Team Lion F2017"
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* Also shows CPU time while the hotspot was executing and estimates its effectiveness either by CPU usage or by Threads Concurrency | * Also shows CPU time while the hotspot was executing and estimates its effectiveness either by CPU usage or by Threads Concurrency | ||
| − | Results of Concurrency tests on Workshop 6 | + | ====Results of Concurrency tests on Workshop 6==== |
| − | matmul_0 | + | I ran the Concurrency test on each of the functions in Workshop 6. I isolated each function by commenting out all others, then ran them 1 by 1. This was to get an idea of how they perform on their own. Finally I ran them all together to see how the program runs overall. |
| + | |||
| + | ====matmul_0 (Serial)==== | ||
[[File:Conc-01.png]] | [[File:Conc-01.png]] | ||
| − | |||
[[File:Conc-02.png]] | [[File:Conc-02.png]] | ||
| − | matmul_1 | + | ====matmul_1 (Serial with j-k loops reversed)==== |
[[File:Conc-11.png]] | [[File:Conc-11.png]] | ||
| − | |||
[[File:Conc-12.png]] | [[File:Conc-12.png]] | ||
| − | matmul_2 | + | ====matmul_2 (Cilk Plus with cilk_for)==== |
[[File:Conc-21.png]] | [[File:Conc-21.png]] | ||
| − | |||
[[File:Conc-22.png]] | [[File:Conc-22.png]] | ||
| − | matmul_3 | + | ====matmul_3 (+array notation, reducer)==== |
[[File:Conc-31.png]] | [[File:Conc-31.png]] | ||
| − | |||
[[File:Conc-32.png]] | [[File:Conc-32.png]] | ||
| − | matmul_4 | + | ====matmul_4 (+vectorization)==== |
[[File:Conc-41.png]] | [[File:Conc-41.png]] | ||
| − | |||
[[File:Conc-42.png]] | [[File:Conc-42.png]] | ||
| − | with all | + | ====Final test with all functions==== |
[[File:Conc-51.png]] | [[File:Conc-51.png]] | ||
| − | |||
[[File:Conc-52.png]] | [[File:Conc-52.png]] | ||
| − | === | + | ===Locks & Waits=== |
===HPC Performance Characterization=== | ===HPC Performance Characterization=== | ||
Revision as of 10:26, 5 January 2018
Contents
Group Members
Intel Parallel Studio vTune Amplifier
What is VTune Amplifier?
- A tool created by Intel to provide performance analysis on software.
- Offers both a GUI and command-line version for both Windows and Linux
- GUI only for OSX
- Basic features available on both Intel and AMD processors, but advanced features only for Intel
How to use it?
- Available as a standalone unit or part of the following packages:
- Intel Parallel Studio XE Cluster Edition and Professional Edition
- Intel Media Server Studio Professional Edition
- Intel System Studio
Can be run on a local machine
Hotspots
Basic hotspot analysis
Advanced hotspot analysis
Parallelism
Concurrency
- Best for visualizing thread parallelism on available cores, finding areas with high or low concurrency, and identifying serial bottlenecks in your code
- Provides information on how many threads were running at each moment during application execution
- Includes threads which are currently running or ready to run and therefore are not waiting at a defined waiting or blocking API
- Also shows CPU time while the hotspot was executing and estimates its effectiveness either by CPU usage or by Threads Concurrency
Results of Concurrency tests on Workshop 6
I ran the Concurrency test on each of the functions in Workshop 6. I isolated each function by commenting out all others, then ran them 1 by 1. This was to get an idea of how they perform on their own. Finally I ran them all together to see how the program runs overall.
matmul_0 (Serial)
matmul_1 (Serial with j-k loops reversed)
matmul_2 (Cilk Plus with cilk_for)
matmul_3 (+array notation, reducer)
matmul_4 (+vectorization)
Final test with all functions
Locks & Waits
HPC Performance Characterization
Microarchitecture
General Exploration
Memory Access
references
https://en.wikipedia.org/wiki/VTune
https://software.intel.com/en-us/get-started-with-vtune
https://software.intel.com/en-us/vtune-amplifier-help-analysis-types
https://software.intel.com/en-us/vtune-amplifier-help-basic-hotspots-analysis
https://software.intel.com/en-us/vtune-amplifier-help-advanced-hotspots-analysis
https://software.intel.com/en-us/vtune-amplifier-help-concurrency-analysis
https://software.intel.com/en-us/vtune-amplifier-help-locks-and-waits-analysis
https://software.intel.com/en-us/vtune-amplifier-help-hpc-performance-characterization-analysis
https://software.intel.com/en-us/vtune-amplifier-help-general-exploration-analysis
https://software.intel.com/en-us/vtune-amplifier-help-memory-access-analysis
