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Ticket #3983 (new minor enhancement)

Opened 4 years ago

Last modified 4 years ago

Need to design a general "capabilities" set of query methods for the solver hierarchy

Reported by: jwatson Owned by: wehart
Priority: normal Milestone: Long Term
Component: coopr.pyomo Version:
Keywords: Cc: wehart@…, dlwoodruff@…

Description

I just added a "allows-warm-starts" predicate to the solver hierarchy (to allow PH to do the right thing, depending on the solver being used), but immediately realized that we also need a "does-quadratic-lp" and "does-quadratic-mip" methods. For example, glpk barfs when given a completely legal LP file with quadratic PH terms, and the error message isn't all that clear (writing a parser to handle the error cases will be extremely difficult). It would be far cleaner to have PH query the solver to see if the requisite capabilities are there.

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comment:1 Changed 4 years ago by wehart

  • Milestone set to Long Term
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