Use HiGHS solver by default, with Big M, and End-of-Life for v1 and v2 #575
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Bill-Becker
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Mar 30, 2024
Bill-Becker
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- See PR Use HiGHS solver by default and on production, include other OS solvers #574
mining operations may use > 1,000 GWh
Use HiGHS solver by default and on production, include other OS solvers
Bill-Becker
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Bill-Becker
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This builds locally and I was able to run test_job_endpoint just as a quick check. Thanks @Bill-Becker!
CHANGELOG.md
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| - See updates from REopt.jl v0.44.0: https://github.com/NREL/REopt.jl/releases/tag/v0.44.0 | ||
| - HiGHS, Cbc, and SCIP solvers use Big M notation constraints only in REopt.jl | ||
| #### Deprecated | ||
| - End-of-Life for v1 and v2 of the API for external/public interfacing from NREL servers |
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@Bill-Becker should we include a bit more detail about what this means for users? E.g., Will users no longer be able to access results using v1 and v2 endpoints, or just will no longer be able to post to these endpoints?
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I made a discussion forum post about this, and added a link in both the API response error message and in the Changelog in 089153d
| @@ -296,7 +296,7 @@ class SOLVERS(models.TextChoices): | |||
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| solver_name = models.TextField( | |||
| blank=True, | |||
| default=SOLVERS.XPRESS, | |||
| default=SOLVERS.HIGHS, | |||
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This might not be critical for this PR, but if you use an empty string (below) for the solver_name input, it does not automatically select HiGHS and the error under "messages" is just Unexpected Error...
post_1["Settings"]["solver_name"] = '' or ""
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Ok, yeah I'll punt on this for now. I don't think the user would enter an empty string accidentally in most cases.
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My proposal is (i) agreeing to punt for now, and (ii) making a fix for this on the REopt.jl side to allow empty strings as input which default to HiGHS longer-term.
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@Bill-Becker this look good to me! I just had two minor comments that could be worth addressing depending on priority. I spun up this branch locally and tested all of the solvers as well as the error messages from the v1 and v2 endpoints.
Thanks Amanda! I addressed one of the two items, and punted on the other. |
