[OS-tickets] [Optimization Services] #59: AD routines do not handle linear functions properly

Optimization Services coin-trac at coin-or.org
Sat Jan 21 21:46:30 EST 2017


#59: AD routines do not handle linear functions properly
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 Reporter:  gassmann          |      Owner:  gassmann
     Type:  task              |     Status:  new
 Priority:  minor             |  Milestone:
Component:  solver interface  |    Version:
 Keywords:                    |
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 A "nonlinear" expression containing only a scalar multiple of a decision
 variable is not handled properly when the variable is also mentioned in
 the linear part. In the worst case this can lead to a segmentation fault,
 because it will try to access the wrong element of the sparse Jacobian.

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Ticket URL: <https://projects.coin-or.org/OS/ticket/59>
Optimization Services <http://projects.coin-or.org/OS>
An interface for Web services implementing optimization.



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