SNOPT 7.6 Compatibility

[aykutonol]

First of all, thanks for this great interface.

In a previous version, I was able to use SNOPT 7.6 through snopt76_adapter. However, in the current version, snopt_adapter_76.h is referenced in snopt_adapter.h but I cannot find it. Still, I can successfully install if I comment out setUserFun(&SnoptAdapter::ObjectiveAndConstraintFct); in snopt_adapter.cc which is somehow not declared. Yet, make test fails.

Also, there is a mismatch for the SNOPT version variable between ifopt/ifopt_snopt/cmake/FindSNOPT.cmake and ifopt/ifopt_snopt/CMakeList.txt, i.e., snopt_v76 vs SNOPT_v76.

Solution The following steps solved the issue for me:

• Correcting the variable name problem
• Adding this->initialize("print_file.out",1); (namely, initializing SNOPT) and removing setUserFun(&SnoptAdapter::ObjectiveAndConstraintFct);

I hope that helps and thanks again for sharing your work.

[stevenjj]

Just want to say thanks @aykutonol. For others who are having issues with the snopt v7.6 interface, this was the specific change:

in ifopt_snopt/src/snopt_adapter.cc change

setUserFun(&SnoptAdapter::ObjectiveAndConstraintFct);

to

  // setUserFun(&SnoptAdapter::ObjectiveAndConstraintFct);
  this->initialize("print_file.out",1);

snopt needs to be initialized in a different way due to the interface change.

I also had to resolve the SNOPT cmake version variable. The quickest fix was to change the following line in ifopt_snopt/cmake/FindSNOPT.cmake from

set(snopt_v76 FALSE) # set true if snopt version >= v7.6

to

set(SNOPT_v76 TRUE) # set true if snopt version >= v7.6