After you enter a QP problem, whether interactively or by reading a formatted file, you can then save the problem in a formatted file. The formats available to you are LP, MPS, and SAV. When you save a QP problem in one of these formats, the quadratic information will also be recorded in the formatted file.
In addition, you can save the quadratic part of a problem in a QP file (a formatted file with the extension .qp, as explained in the reference manual of ILOG CPLEX File Formats). To do so:
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In the Interactive Optimizer, use the
write command
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In the Callable Library, use the routine
CPXqpwrite.
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Writing a QP format file is not supported by
IloCplex.
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