Greg Glockner
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Latest activity by Greg Glockner-
Greg Glockner commented,
Official comment By default, after solving a MIP, AMPL fixes the integer variables and solves the LP relaxation. This is known as the fixed LP. To prevent this, set the AMPL parameter basis=1.
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Greg Glockner commented,
I don't think this has been thoroughly investigated, but I doubt it will work: the Gurobi Python library (gurobipy) uses cython to call the native Gurobi library.
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Greg Glockner commented,
Official comment Thanks. You should enable node files, and look into tuning to reduce the number of nodes.
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Greg Glockner commented,
Please post your logs so that we can understand the model.
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Greg Glockner commented,
Official comment This may be possible but it's not a supported system: An x64 processor is strongly recommended; the x86 processor is deprecated I don't believe Arduino offers an x64 processor You would be better...
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Greg Glockner commented,
In general, whenever you get an infeasible model, it is useful to run IIS, to understand why it is infeasible.
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Greg Glockner commented,
As Dr. Horn said, DegenMoves may not solve your performance issue. To understand your performance issue, can you post a sample log file?
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Greg Glockner commented,
Also, please try the sample Makefile in the examples/build directory.
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Greg Glockner commented,
First step is to get the error message that is lost when you are opening the desktop application. Try running the interactive shell from an interactive prompt: On Windows, open cmd, then run: guro...
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Greg Glockner commented,
Gurobi Optimizer 7.5 is not compatible with Python 3.5. Can you try again with Python 3.6?