ITK Registration Optimization/2007-04-06-tcon

Agenda

Tests

• Two types of tests
  • Baseline: LinearInterp is useful for profiling
    • Profile reports in Reports subdir
  • Optimization: OptMattesMI is a self-contained test
    • Submit to dashboard
      • test name / method
      • non-optimized speed
      • optimized speed
      • optimized error (difference from non-optimized results)

Timing

• Priority
• Thread affinity

Performance Dashboard

• Ranking computers?
  • CPU, memory, etc in dashboard
  • MFlops as measured by Whetstone?
• Public submission of performance
  • Logins and passwords configured in cmake
  • Encryption in cmake?
• Organization of Experiments/Dashboards
  • When new experiment?
• Appropriate summary statistics
  • Per machine: day -vs- speed/error
  • Per test: mflops -vs- speed/error
  • All, day -vs- change in performance

Review of OptMattesMI

• Lessons learned
  • Mutex bad
  • Memory good

ctest suite

• Ideal set of tests is machine specific
  • e.g., Number of threads and image size