Phylanx Report: May 2019

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

• Publications
• Modularization of Visualization Tools

Organizational Activities and Results

• Weekly group-meeting, minutes:
  • May 2nd: https://drive.google.com/open?id=1ODFydZuBHskNyz1PRmw7NLhBglTcZIr-
  • May 9th: https://drive.google.com/open?id=1AiYMvAz4H1cJuFMVTioA1Y-MOxpg_aM8
  • May 16th: https://drive.google.com/open?id=1TfoQnyxHbvjYSHpXXX2WXr3bEFtM5CM8
  • May 23rd: https://drive.google.com/open?id=1uNRR0Tnyey64U5K-DtnuUKpQJbNWEfoU
• Phylanx Seminars:
  • Multi-threaded Computing
    • http://phylanx.stellar-group.org/index.php/2019/05/23/phylanx-seminar-multi-threaded-computing/
• hpxMP Paper “Moving into the future – bridging the compatibility gap between OpenMP and Asynchronous Many-task Runtime Systems” submitted to IWOMP for review
• ICPP conference paper “Runtime Adaptive Task Inlining on Asynchronous Multitasking Runtime Systems ” accepted to main conference

Development Activities and Results

• General
  • Performance improvements in HPX have improved performance of Phylanx
    • Scheduler improvements
  • HPX version 1.3 released
• Traveler
  • Creation of swagger API for performance data
  • New view management for Traveler Gantt chart pushed to master.
    • Sub-task detail view now pops up in a new window on shift-click.
    • Legend view added for function colors.
    • See figure below:
  • New Atria (Traveler Tree) modularization has code and tree views linked
• Tiling
  • Looking into online versions of the tiling problem
    • Assumptions such as:
      • Instructions arrive one at a time
      • No previous knowledge of program sequence
• Primitives & Algorithms
  • Updated K-means example (PRs #978 and #982)
  • Added extract_scalar_positive_integer_value to base primitive (PR #984)
  • Missing BlazeTensor conditionals were added (PR #967)
  • Documentation was updated to work on windows platform (PR #986)
• Python
  • Created an LLVM IR
  • Work on integrating Numba
  • Added support for lazy compilation

Repository Activity May 1st – May 31st:

Code statistics

-------------------------------------------------------------------------------
Language                     files          blank        comment           code
-------------------------------------------------------------------------------
C++                            435          17368           5501          88004
C/C++ Header                   284           6097           3528          30277
Python                         137           2576           1794           6793
CMake                          105            915            771           3823
YAML                             2             24             77            641
Dockerfile                       2              6             27             53
Markdown                         2             17              0             46
CSS                              1             14             10             38
HTML                             2              5              6             22
DOS Batch                        2              0              0             12
INI                              1              0              0              8
-------------------------------------------------------------------------------
SUM:                           973          27022          11714         129717
-------------------------------------------------------------------------------

Impact on Other Projects

• Blaze Tensor Pull Requests:
  • Adding dilatedsubvector view (PR #22)
  • Move Traits into their corresponding header files (PR #23)
  • Adding dilatedsubmatrix view (PR #25)
  • Making sure dilatedsubvector can be created from subvector (PR #27)
  • Adding Tensor Vector Multiplication (PR #28)