Kyran Adams (Work Log)

Spring 2018

Kyran Adams Work Logs (log page)

2018-01-26: Started to try to fix a bug that occurs both in the Adjusted and Readjusted code. The bug is that on the second stage of gmm_2stage_estimation, there is a matrix dimension mismatch. Also, I'm not really sure of the point of the solver at all. The genetic algorithm only runs a few iterations (< 5), and it is actually gurobi that does most of the work. Useful finding: this runs astronomically faster with gurobi display turned off (lol).

2018-01-25: Continued working on matlab page. Deleted unused smle and cmaes estimators. Not sure why we have so many estimators (that apparently don't work) in the first place. Deleted unused example.m. Profiled program and created an option to plot the GA's progress. Put up signs with Dr. Dayton for event tomorrow.

2018-01-24: Kept working through the codebase and editing the matlab page. Deleted "strip_" files because they only work with task="monte_data". Deleted JCtest files because they were unnecessary. Deleted gurobi_gmm... because it was unused.

2018-01-22: Kept working on the Matlab page. Read reference paper in Estimating Unobserved Complementarities between Entrepreneurs and Venture Capitalists. Talked with Ed about what I'm supposed to do; I'm going to refactor the code and hopefully simplify it a bit and remove some redundancies, and figure out what each file does, what the data files mean, what the program outputs, and the general control flow.

Possibly useful info:

• only 'ga' and 'msm' work apparently, I have to verify this
• Christy and Abhijit both worked on this
• This program is supposed to solve for the distribution of "unobserved complementarities" between VC and firms?

2018-01-19: Wrote page Using R in PostgreSQL. Also started wiki page Estimating Unobserved Complementarities between Entrepreneurs and Venture Capitalists Matlab Code. Tried to understand even a little of what's going on in this codebase

2018-01-18: Started work on running R functions from PostgreSQL queries following this tutorial. First installed R 3.4.3, then realized we needed R 3.3.0 for PL/R to work with PostgreSQL 9.5. Installed R 3.3.0. Link from tutorial for PL/R doesn't work, I used this instead. To use R from pgAdmin III, follow the instructions in the tutorial: choose the database, click SQL, and run "CREATE EXTENSION plr;". This was run on databases tigertest and template1. You should be able to run the given examples. Another possibly useful presentation on PL/R. Keep in mind, if the version of PostgreSQL is updated, both the R version and PL/R version will have to match it.

Fall 2017

2017-11-22: Fixed outjoiner.py python 3 compatibility bugs, color coded plot so errors are easier to see

2017-11-20: Continued debugging circles.py and changed outjoiner.py so it generates an error file, which contains all files with errors.

2017-11-17: Finished duplicated points code, but it still gives errors... Wrote a plotter so that I can debug it more.

2017-11-15: Worked on making duplicated points work with circles.py.

2017-11-13: Put some examples of nonworking files into OliverLovesCircles/problemdata. The files are not just St. Louis, but a lot of different files, meaning the bug is pretty widespread. Found possible solution; removing duplicate points before running program fixes it?

2017-11-10:

1. Wrote some docs for ecircalg.py. Narrowed the St. Louis problem to the algorithm itself; it's returning circles with a radius of 0.0 for some reason. Wrote some testing code that prints errors if there are unenclosed points or circles with too few points.
2. Also created a new parts list for the GPU build using server parts. Did some research on NVLink.

2017-11-08: Commented and wrote documentation for vc_circles, circles, and outjoiner.

2017-11-03: Fixed bug in circles.py that output place names in files as lists instead of strings (['S','t','L','o','u','i','s'] instead of "St. Louis"). Changed vc_circles.py to call outjoiner.py automatically. Refactored vc_circles.py, circles.py, and outjoiner.py to put all of the configuration in vc_circles.py. Wrote out method to plot circles using ArcMap in here.

2017-11-01: Familiarized with Enclosing Circle Algorithm to find St. Louis bug

2017-10-30: Rechecked parts compatibility, switched PSU and case

2017-10-27: Decided on dual GPU system, switched motherboard and CPU

2017-10-25: Worked on the partpicker for the dual GPU build.

2017-10-23: Started researching GPU Build. Researched the practical differences between single vs. multiple GPUs.

2017-10-20: Set up my wiki page :)