[Ipopt] Using a Third Party Software in IPOPT MA57 Interface

[Joel Andersson]

Hello Begum,

For curiosity, does using CSparse work well together with IPOPT? Or did you
want to avoid the other linear solvers written in Fortran (and mostly with
non-permissive licenses)?

Did you use symbolic QR or LU? I assume you ignore symmetry?

Joel






2014-08-21 3:43 GMT+02:00 Senses,Begum <bgmsenses at ufl.edu>:

>
> I was just typing you an email about this. My code was working fine before
> therefore I did not even run make test. After I have started having
> troubles I have decided to run make test and you are right it should not
> work anyway because I am only adding -lcsparse into the matlabinterface
> makefile. I know I am having trouble using csparse functions because when I
> command out cparse functions I can run ipopt from Matlab without any
> trouble but when I add those functions my matlab crashes even before the
> first ipopt iteration. I am thinking maybe the problem is about an update I
> did in my computer (I dont remember doing any updates either but why would
> it stop working if I did not change anything.)
>
>
> On Wed, 20 Aug 2014 18:34:53 -0700, Tony Kelman wrote:
>
>> Are you sure you were running make test before, or were you just
>> building the Matlab interface? To run standalone executables like from
>> make test then you'll need to add -lcsparse to other link flags too,
>> not just in the MatlabInterface folder. I think there are some ADDLIBS
>> configure variables you can set for this.
>>
>>
>> -----Original Message----- From: Senses,Begum
>> Sent: Wednesday, August 20, 2014 6:18 PM
>> To: Tony Kelman
>> Cc: Ipopt
>> Subject: Re: [Ipopt] Using a Third Party Software in IPOPT MA57 Interface
>>
>>
>> Unfortunately It is still not working.
>>
>> On Wed, 20 Aug 2014 18:03:00 -0700, Tony Kelman wrote:
>>
>>> I don't think csparse uses pkg-config, but I could be wrong there.
>>>
>>> Try
>>> @COIN_HAS_PKGCONFIG_TRUE at LIBS =
>>> `PKG_CONFIG_PATH=@COIN_PKG_CONFIG_PATH@ @PKG_CONFIG@ --libs ipopt |
>>> sed -e 's/-framework vecLib//g'` -lcsparse
>>>
>>> And if you're on a system that doesn't have pkg-config installed,
>>> then you'll need to add -lcsparse to the line that starts with
>>> @COIN_HAS_PKGCONFIG_FALSE at LIBS = ...
>>>
>>>
>>>
>>> -----Original Message----- From: Senses,Begum
>>> Sent: Wednesday, August 20, 2014 5:59 PM
>>> To: Tony Kelman
>>> Cc: Ipopt
>>> Subject: Re: [Ipopt] Using a Third Party Software in IPOPT MA57 Interface
>>>
>>>
>>> Hi Tony,
>>>
>>> I downloaded Ipopt again did all of these steps again and it still does
>>> not work. I have also tried adding the changes to the Makefile.in file.
>>>
>>> @COIN_HAS_PKGCONFIG_TRUE at LIBS = `PKG_CONFIG_PATH=@COIN_PKG_CONFIG_PATH@
>>> @PKG_CONFIG@ --libs ipopt | sed -e 's/-framework vecLib//g'` I changed
>>> this line with
>>>
>>> @COIN_HAS_PKGCONFIG_TRUE at LIBS = `PKG_CONFIG_PATH=@COIN_PKG_CONFIG_PATH@
>>> @PKG_CONFIG@ --libs ipopt csparse | sed -e 's/-framework vecLib//g'`
>>>
>>> and then ran the configure script again but it is still not working.
>>>
>>>
>>> On Wed, 20 Aug 2014 17:45:49 -0700, Tony Kelman wrote:
>>>
>>>> Begum,
>>>>
>>>> Sounds like you reran configure since you made that change. Configure
>>>> auto-generates the Makefiles from Makefile.in, overwriting any changes
>>>> you made. Try making the change where you add -lcsparse to LIBS in
>>>> Makefile.in instead, then run configure and it should work again.
>>>>
>>>> -Tony
>>>>
>>>>
>>>> -----Original Message----- From: Senses,Begum
>>>> Sent: Wednesday, August 20, 2014 5:36 PM
>>>> To: Ipopt
>>>> Subject: [Ipopt] Using a Third Party Software in IPOPT MA57 Interface
>>>>
>>>>
>>>> Hello everyone,
>>>>
>>>> I am trying to use a Third party software in
>>>>
>>>>
>>>>
>>>> ../CoinIpopt/Ipopt/src/Algorithm/LinearSolvers/
>>>> IpMa57SolverInterface.cpp.
>>>> This third party software is called CSPARSE which is written by Tim
>>>> Davis. I was able to use this software in this file before but it
>>>> stopped working. Obviously I have changed something somewhere but I
>>>> could not find it maybe one of you can think of anything.
>>>>
>>>> These are the steps that I am performing right now.
>>>>
>>>> 1) Compile the third party software and obtain libcsparse.a library.
>>>> 2) Copy this library to CoinIpopt/lib folder.
>>>> 3) Copy the main .h file of CSPARSE (cs.h) to the same folder with
>>>> IpMa57SolverInterface.cpp file which is in
>>>> CoinIpopt/Ipopt/src/Algorithm/LinearSolvers folder.
>>>> 4) Modify the makefile in CoinIpopt/Ipopt/contrib/MatlabInterface/src .
>>>> I used to have LIBS = -L/CoinIpopt/lib -lipopt . I added -lcsparse to
>>>> this line.
>>>> 5) The last step is adding
>>>>
>>>> extern "C"
>>>> {
>>>>
>>>> #include "cs.h"
>>>>
>>>> }
>>>>
>>>> command at the beginning of the IpMa57TSolverInterface.cpp file.
>>>>
>>>> As I mentioned before these steps used to work fine but now when I run
>>>> make test it gives me the following error
>>>>
>>>> Undefined symbols for architecture x86_64:
>>>>   "_cs_amd", referenced from:
>>>>       Ipopt::Ma57TSolverInterface::SymbolicFactorization(int const*,
>>>> int const*) in libipopt.a(IpMa57TSolverInterface.o)
>>>>
>>>> cs_amd is the function that I am trying to use from CSPARSE software.
>>>>
>>>> Thank you.
>>>>
>>>
> --
> Senses, Begum
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Joel Andersson, PhD
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