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[stem-dev] Notes from the STEM community call on December 14, 2017

The notes from today’s call appear below. Happy Holidays to All!


Notes from the STEM Call on December 14, 2017


Welcome to Professor Shiyong Liu, systems engineer/economist from China, visiting IBM Almaden, plans to use STEM in a proposal to China’s National Science Foundation on road network, high speed trains; will be joining call when possible


Others on the call: Jamie, Stefan, Ahmad, Kun, Tekla, Emily, Nereyda, Judy


Next Call: Thursday, January 18, 2018 (Moved to third Thursday by consensus)


1. STEM 3.0.0 Milestone 5: Release to follow solution of problem with launcher on Mac

*Pending solution Ahmad is working on (see item 3); workaround available at


2. Updates 

Emily: Setting the limit to 1000 gives an infinite rate; will post to wiki once finished testing. Still having trouble running batch experiments on windows 7; works on first batch but doesn’t work after initial run. Jamie: May be a windows security problem; he & Emily to try on windows 8 & 10 machines at home

Potential Solution: Write a windows batch script (batch file launch calls batch file to reiterate values); Emily to try, may enlist windows expert at her university 


Nereyda: To present poster on 1/7/2018 at Transportation Research Board; release to stem website 1/8. One-page handout on STEM is ready for distribution; will incorporate Kun’s email input into explanation at the meeting


Tekla: Problem with model generator disappeared with Mac; persists with Windows, icon doesn’t show up; problem either in compilation or generator, should show in error log

Potential Solution: Post to stem-dev for assistance UPDATE: Tekla has posted description of problem, now available at stem-dev Digest, Vol 104, Issue 2


3. STEM Update

Ahmad: Experiencing dependency problem when working to update STEM. Has updated STEM platform, specified latest plug ins; can’t find newest version of Eclipse after version 4.4. Jamie: Eclipse bug? Complicated problem; other people aren’t finding the delta pack

Potential Solution: Ahmad will (1) send Jamie & Stefan an email with list of issues, allowing them to operate on same platform; (2) submit to Bugzilla as bug “New target platform” to forward to Eclipse master (also step to becoming an Eclipse committer)


4. Bugs: See item 3 above


5. Items from Participants

Emily: Vaccination runs with stochastic solver, isolation won’t. Jamie: Try build with deterministic solver, test to be sure it’s running, delete solver, and drag in stochastic solver; clear error log before each run, keep open. Stefan: No technical reason both functions (vaccination and isolation) shouldn’t work with stochastic solver


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