Phylanx Report: March 2020

The thirty-first month of work focused on work in the following areas:

• Fixing build system and contiguous integration issues
• Phylanx code base
  • Merged distributed random and constant primitives
  • Working on distributed identity and retiling primitives
• Tiling:
  • Focused on completing the polyhedral pipeline including a new algorithm for detecting affine loop nests
  • New data and task data-structures are added to facilitate code generation and improve Phylanx support
  • Initial tiling solver algorithm will be done soon.
  • Started working on implementing parts of it.
• Fixed APEX various bugs related to profile output
  • Fixed performance issue related to lock contention in APEX
  • Reported, resolved Phylanx nightly build errors
  • Investigating distributed trace output bugs
• Traveler tools:
  • Updates to Traveler-Integrated to keep consistent with Jetlag pipeline
  • Front-end changes to increase rendering speed for both time series and interval data coming from traces.
  • Bug fixes in linked panning and zooming in Traveler-Integrated

Organizational Activities and Results

• Weekly group-meeting, minutes:
  • March 4^th, March 11^st, March 18^th, March 25^th: https://drive.google.com/drive/folders/0B-L3qi_kGiCLN0NRaHZDU3d4Q1k
    

Repository Activity March 1st – March 31st:

Impact on Other Projects

• HPX Pull Requests:
  • Pull request: Change C++ standard handling (#4378)
  • Pull request: Adding serialization support for std::variant (if available) and std::tuple (#4417)
  • Pull request: Fix APEX linking in dependent projects (#4451)
  • Pull request: Fixing build system to actually build variant test (#4449)