Our PhD student, and JuMP coder extraordinaire, Oscar Dowson, presented on SolverStudio, Julia and JuMP at the JuliaOpt/JuMP Developers conference, June 12-16, 2017, at the Sloan School of Business, Massachusetts Institute of Technology. Watch Oscar’s presentation on YouTube.
There’s a nice article “IP in the i” by Martin J. Chlond in “INFORMS Transactions on Education 16(1), pp. 39–41” about using SolverStudio to solve the new Wijuko and ABC Logic puzzles, including a SolverStudio implementation.
We have released SolverStudio_00_09_03_00 20160520. This includes:
- Fixes for NEOS to avoid connection aborted errors (caused by NEOS getting tougher, and us having been pinging their server too frequently).
- Update of CMPL to v1.1, which gives substantial speed improvements. (Thanks, Mike, for this.) This improves support for Mike’s CMPL/SolverStudio textbook.
- Update to GLPK/GMPL 4.6
If you speak German, you may be interested in the recently published book:
Mike Steglich, Dieter Feige und Peter Klaus: Logistik-Entscheidungen: Modellbasierte Entscheidungsunterstützung in der Logistik mit LogisticsLab, 2. aktualisierte und komplett überarbeitete Auflage, De Gruyter, Berlin und Boston 2016.
This covers using SolverStudio and the CMPL modelling language. Mike Steglich has done a great job of adding CMPL support to SolverStudio; it is great to have SolverStudio as a core part of his new book.
For more information, including CMPL examples, see the Logistics Lab.
Check out this webinar on 20 May on using AMPL with the Gurobi solver. Looks very interesting. Andrew
You may find that SolverStudio (v 0.09.02 or earlier) is not working with NEOS. NEOS have recently tweaked their systems, and so you need to edit RunGAMSNEOS.py or RunAMPLNEOS.py and change all lines with “time.sleep(1)” into “time.sleep(5)”. This will be fixed in the next release. Andrew
SolverStudio is pleased to be part of the IFORS initiative to support operations research activities in developing countries, where access to specialist commercial software is often prohibited by licensing costs. For more on this initiative, see the IFORS Developing Countries OR Resources Website.
We have released SolverStudio_00_09_02_00 20160408.
This updates the Julia handling to work with Julia 4 and associated JuMP changes. We also update the Julia examples, and add “Advanced Data Item Usage.xlsx” as an example for users wanting to push SolverStudio’s capabilities!