Homework assignment #5

To turn in your homework, you need a PR and an E3 entry for the PR URL.

Question

Based on what you wrote in the previous homework assignment or the course notes, use the provided pybind11 wrapper file mod.cpp to create the Python wrapper. This assignment is to help you practice the modern C++ techniques employed in the provided wrapper file.

The provided wrapper file counts the number that the Python constructor of Matrix class is called, by using an undocumented feature of pybind11. The check for the call count is to ensure you are using the provided wrapper file. You are not asked to understand the mechanism of the checking code.

Note that your code needs to use tiling technique to speed up the matrix-matrix multiplication without limiting the matrix or tiling size, as you have done in homework assignment #3. You may copy this part of code from your previous submission.

Submission

Your PR needs to be created against the hw5 branch. (Not master!) You need to create a sub-directory using exactly your GitHub username as your working directory (nsdhw_23au/hw5/$username/). The hierarchy should be:

- nsdhw_23au (<- repository root)
  - hw5
    - username (<- your working directory)
      - Makefile
      - xxx.{cc|cpp|cxx}
      - (any other files you need)

In every commit in your PR, you can only change the files in your working directory. You may not touch anything else. Failure to follow may cost you points.

The CI should pass with your submission. The grader may reference the result as well as additional information for grading. To get it running, your branch name should start with <username>-hw5**, e.g, yungyuc-hw5-attempt1. See the CI configuration file and the Github Action documentation for more information.

Your submission needs to be compatible with the runtime environment required by the grader. If the grader cannot get the expected results, you can lose all points.

There are totally 5 points in this homework assignment. The grader may attempt to run the script with the environment variable PRELOAD_MKL set, if validate.py doesn't pass without it. Your work is considered pass in either case.