OFR-IIASA

This could also be relevant for an issue previously observed #120

Here is an example of the iteration log if this helps - sorry needed to save it as a txt file [700f_iteration_log.txt](https://github.com/iiasa/message_ix/files/4502104/700f_iteration_log.txt)

Having now tested this feature in a [PR](https://github.com/iiasa/message_ix/pull/612), I must say I like the workflow suggested by Matt.

One solution that has worked in the past was to use the cplex lpmethod 2 and then use the advanced bases. This has worked in the past, but the issue...

I believe that a scenario being optimal with unscaled infeasibilities returns an error for message standalone - @danielhuppmann is this true? If this is the case, then I believe that...

In discussion with @volker-krey , @behnam-zakeri and @khaeru it was decided that the default behavior in such cases should be, that if MESSAGE is solved optimally with unscaled infeasibilities, then...

After playing with some alternatives, I have the following solution to counteract the issue. I have added a few lines to generate a second "cplex.opt" file as "cplex.op2" in "models.py",...

I did the install this morning on macOS: step1. I deleted Anaconda and GAMS. step2. rebooted machine. step3. installed GAMS 35.2 (including ticking the box to add to PATH) step4....

Marek, As for questions 1, 2 and 3 -> No, I havent installed JDK. 4. Yes, the Westeros tutorial solved. 5. No, i believe this shouldnt create any issues. 6....

Marek, no i didnt define $JAVA_HOME. This is only needed if Java is installed manually. I didnt do this so it is done so as part of the MESSAGEix installation...