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→Summer 2018
[[Wei Wu]] [[Work Logs]] [[Wei Wu(Work log)|(log page)]]
2018-06-11 <br> Set up wiki page and RDP for work. Installed CUDA on dbserver. Waiting for Matlab and Gurobi to be
installed on the dbserver (or I will do it myself later this week). Started looking at the paper inn progress [http://mcnair.bakerinstitute.org/wiki/Estimating_Unobserved_Complementarities_between_Entrepreneurs_and_Venture_Capitalists ''Estimating Unobserved Complementarities between Entrepreneurs and Venture Capitalists''] and its related Matlab code. Began looking for ways to incorporate CUDA parallel computation with Matlab and Julia.
2018-06-12 <br>
*Installed tightVNC on dbserver by following steps 1-3 from this [https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-on-ubuntu-14-04 tightVNC tutorial]
*Matlab matching code with Ed, James, and Chenyu via Skype.
2018-06-13 <br>Continued searching for a method to set up vnc for dbserver without ssh. Started moving the selenium box, monitors, keyboards, etc, from Room 310. Matlab matching code with Ed, James, and Chenyu via Skype.
2018-06-18 <br>Trained on using PostgreSQL for DBServer.
2018-06-19 <br>Further training with SQL and SDC Platinum. Job assignment among team members.
2018-06-20 <br>
*Started reading a short tutorial on GMM and its implementation[https://www.kevinsheppard.com/images/5/55/Chapter6.pdf][https://ocw.mit.edu/courses/economics/14-385-nonlinear-econometric-analysis-fall-2007/lecture-notes/lec13_gmm.pdf]. Should have a good grasp before the end of the week.
*[http://www.gurobi.com/documentation/8.0/quickstart_windows.pdf Gurobi interface guide]
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2018-06-21<br>
*Huge problem with code '''gmm_2stage_estimated.m'''. In line 80, we compute ''W'' by taking the inverse of matrix ''Om''. We kept getting ''W'' as an ill-conditioned matrix, whose entries are infinitely large. There might be a bug in the readjusted code. I will try to catch it by comparing with the original code. If I can't, will try to set up another skype phone call with Chenyu.
'''Update''': This might be related to the bug reported in the [http://mcnair.bakerinstitute.org/wiki/Estimating_Unobserved_Complementarities_between_Entrepreneurs_and_Venture_Capitalists_Matlab_Code#Bugs Matlab Code page]. I also don't think the fix was correct. I will look into that.
2018-06-22<br>
*Want to test Matlab and its parallel computing toolbox on DBServer. Cannot use the Matlab GUI remotely. This is possible due to the environment variable setting for remote access. '''Update''': now we have Matlab GUI. Nvidia CUDA is configured correctly as well. Today is a good day for a Linux user.
*Probably it's the right time to further configure the VNC server on DBServer. [https://www.tightvnc.com/vncserver.1.php Documentation for TightVNC configuration]. '''Done'''. Documented in the [http://mcnair.bakerinstitute.org/wiki/Database_Server_Documentation Database Server Documentation]
2018-06-25/26<br>
Looking at quick tutorials for C/C++ and CUDA, in case that I will need to read CUDA code in the future.
[[Category:Work Log]]
2018-06-27<br>
Sick. Working from home.
2018-06-28<br>
Emailed Chenyu about the bug in '''gmm_2stage_estimated.m'''.
2018-06-29<br>
Set up a meeting with Jeremy to talk about the Matlab code and paper.
2018-07-02 <br>Meeting with Jeremy. Here is a[http://hpc.fs.uni-lj.si/sites/default/files/HPC_for_dummies.pdf gentle introduction to HPC] for myself (and whoever might benefit from it).
