Phylanx Report: June 2020

The 34^th month of work focused on work in the following areas:

• Fixing build system and contiguous integration issues
  • Implement changes needed to adapt to HPX modularization
• Jetlag:
  • Got one of Chris’s codes to run through Phylanx
  • Continued to update/improve/debug the JetLag system.
  • Made a new movie of the JetLag demo
  • Contributed the modulus operator
  • improved hpxrun.py to take a node list
  • Jetlag talk for the symposium
  • Registered for the PEARC jetlag talk
• Traveller:
  • Re-integration of tooltip, selection, and highlighting in faster Gantt view.
  • UI improvements, including collapsible file menu to preserve screen space
  • Ordering of threads now numeric in Gantt view
  • Fixes for Jetlag integration
  • Refactoring of tooltip support in progress.
• APEX:
  • APEX/HPX integration bugs fixed:
    • Fixed unit conversion when writing out TAU profiles
  • Added POWER9 buildbot configuration for continuous integration testing
  • Investigated, reported and resolved build / test failures from buildbot and nightly regression tests.
  • Updated buildbot continuous integration server and links from GitHub.
  • Added “untimed timers” option to support high-level timers that start and stop on different operating system threads
  • Added capture of /proc/self/status “Threads” value to observe the total number of OS threads spawned by an application
  • Added capture of OS context switches (both voluntary and nonvoluntary)
• PyFleaux:
  • Create jupyter notebook as a getting started guide
  • Explore ways to extend Numpy to better support the Phylanx front end
• Phylanx:
  • Implemented distributed primitives: conv1d_d, argmin_d, argmax_d
  • Implemented local primitives: mod
  • Adding 3D support for retiling, random_d, and constant_d primitives
  • Working on distributed statistics primitives
  • Improve PhySL compiler error messages
• Tiling
  • Revised mincut paper to include regret analysis. Currently submitted to WAOA.
  • Working on setting up performance testing for existing distributed primitives.

Organizational Activities and Result

Weekly group-meeting, minutes:

• June 3^rd, June 10^th, June 17^th, June 23^th: https://drive.google.com/drive/folders/0B-L3qi_kGiCLN0NRaHZDU3d4Q1k