XSLPsetcbpreupdatelinearization
XSLPsetcbpreupdatelinearization |
Purpose
Set a user callback to be called before the linearization is updated
Synopsis
int XPRS_CC XSLPsetcbpreupdatelinearization(XSLPprob Prob, int (XPRS_CC *UserFunc) (XSLPprob myProb, void *myObject, int *ifRepeat), void *Object);
Arguments
XSLPsetcbslpend|
Prob
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The current SLP problem.
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UserFunc
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The function to be called at the end of the SLP optimization.
UserFunc returns an integer value. If the return value is nonzero, the optimization will return an error code and the "User Return Code" error will be set.
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myProb
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The problem passed to the callback function.
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myObject
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The user-defined object passed as
Object to
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ifRepeat
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If returned nonzero, SLP restart the lienarization update.
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Object
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Address of a user-defined object, which can be used for any purpose by the function.
Object is passed to
UserFunc as
myObject.
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Further information
This callback is intended to be used with user functions, allowing to peak where the functions will be evaluated, and then asked to redo the linearization. This is usefull for user functions returning their own partial derivatives implemented in a parallel setup. The callback is called again after the linearization is complete with ifRepeat being initialzied to -1, to indicate that any further evaluations are no longer part of updating the linearization.