Hands-On tools@bsc.es 2018 Copy files for the hands-on You can - - PowerPoint PPT Presentation

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Hands-On tools@bsc.es 2018 Copy files for the hands-on You can - - PowerPoint PPT Presentation

Nov 22, 2023 319 likes •392 views

Clustering Hands-On tools@bsc.es 2018 Copy files for the hands-on You can download the material for most of the hands on from the web site https://tools.bsc.es/tools-hands-on. Clustering has to be executed on a Linux machine. > ls

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SLIDE 1

Clustering Hands-On

tools@bsc.es

2018

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SLIDE 2

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Copy files for the hands-on

  • You can download the material for most of the hands on from the web site

https://tools.bsc.es/tools-hands-on.

  • Clustering has to be executed on a Linux machine.

> ls -l tools-material … clustering/ … dimemas/ … extrae/ … traces/

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Cluster-based analysis

  • Run the clustering tool on the provided trace

> module load clustering_suite > cd tools-material/clustering > BurstClustering

  • d clustering.xml
  • i ../traces/lulesh2_27p.prv
  • o lulesh2_27p_clustered.prv
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Cluster-based analysis (II)

  • Check the clustering scatter plot
  • Work (Y) vs. Performance (X)
  • Look at the clusters shape: Variability indicate potential imbalances

> gnuplot lulesh2_27p_clustered.IPC.PAPI_TOT_INS.gnuplot

Variable speed Variable speed Variable work

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Cluster-based analysis (III)

  • Check the clustered trace
  • Load with Paraver
  • Display the distribution of clusters over time
  • File  Load configuration  paraver/cfgs/clustering/clusterID_window.cfg

> paraver/bin/wxparaver $HOME/lulesh2_27p_clustered.prv

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Cluster-based analysis (III)

  • Correlate scatter plots & timelines to detect imbalances

Variable work and/or Variable speed + Simultaneously @ different processes = Imbalances