[Dip] Dippy
Ted Ralphs
ted at lehigh.edu
Wed Feb 5 12:34:59 EST 2014
You are correct---you need to run the setup.py script that is in the source
directory, but COIN_INSTALL_DIR should still be set to the location where
Dip is installed, i.e., the build directory. In other words, just run the
command I indicated:
COIN_INSTALL_DIR=/path/to/Dip-0.9.8/build python setup.py install
but run it in the directory /path/to/Dip-0.9.8/Dip, where the setup.py file
actually lives. Everything should then work and DipPy should be installed.
Cheers,
Ted
On Mon, Feb 3, 2014 at 10:59 AM, Romain Montagné <romain.montagne at polymtl.ca
> wrote:
> Ok, I have been able to install Dip-0.9.8 correctly, I think:
>
> dhcp-10-231-192-228:Documents romainmontagne$ cd ./Dip-0.9.8
>
> dhcp-10-231-192-228:Dip-0.9.8 romainmontagne$ ls
> AUTHORS Data Makefile.am config.guess ltmain.sh
> Alps Dependencies Makefile.in config.sub missing
> BuildTools Dip Osi configure share
> Cbc GiMPy README configure.ac
> Cgl GrUMPy ThirdParty depcomp
> Clp INSTALL build doxydoc
> CoinUtils LICENSE conf install-sh
>
> dhcp-10-231-192-228:Dip-0.9.8 romainmontagne$ cd build
>
> dhcp-10-231-192-228:build romainmontagne$ ls
> Alps GiMPy config.status
> Cbc GrUMPy include
> Cgl Makefile lib
> Clp Osi libtool
> CoinUtils bin share
> Data coin_subdirs.txt
> Dip config.log
>
>
> However, in my "build folder", there is no "setup.py", which makes it
> impossible to execute the last command
> (COIN_INSTALL_DIR=/path/to/Dip-0.9.8/build python setup.py install )...stuck
> again.
>
> There is however a setup.py in this folder:
>
> dhcp-10-231-192-228:Dip romainmontagne$ cd
> /Users/romainmontagne/Documents/Dip-0.9.8/Dip
>
> dhcp-10-231-192-228:Dip romainmontagne$ ls
> AUTHORS config.guess ez_setup.pyc
> LICENSE config.sub install-sh
> MSVisualStudio configure ltmain.sh
> Makefile.am configure.ac missing
> Makefile.in data py-compile
> README depcomp scripts
> README.rst dip-uninstalled.pc.in setup.py
> bugs dip.pc.in src
> build examples test
> coinor.dippy.egg-info ez_setup.py
>
> But if i
> type COIN_INSTALL_DIR=/Users/romainmontagne/Documents/Dip-0.9.8/Dip python
> setup.py install, here is what I get:
>
> dhcp-10-231-192-228:Dip romainmontagne$
> COIN_INSTALL_DIR=/Users/romainmontagne/Documents/Dip-0.9.8/Dip python
> setup.py install
> Traceback (most recent call last):
> File "setup.py", line 87, in <module>
> libraries = get_libs(coin_install_dir)
> File "setup.py", line 31, in get_libs
> 'doc', 'Dip', 'dip_addlibs.txt')) as f:
> IOError: [Errno 2] No such file or directory:
> '/Users/romainmontagne/Documents/Dip-0.9.8/Dip/share/coin/doc/Dip/dip_addlibs.txt'
>
>
> I have a feeling I'm pretty close...I hope!
>
> Romain
>
>
>
>
> Le 30 janv. 2014 à 18:59, Ted Ralphs a écrit :
>
> The problem now is that when the binaries you downloaded were built, they
> were linked with the gfortran library. You can fix this by installing
> gfortran with homebrew or by removing the dependency from the
> dip_addlibs.txt file. However, I do believe that easiest thing is always
> just to download and build COIN on your own machine so that you know
> everything works fine. Something like the following should work:
>
> Download http://www.coin-or.org/download/source/Dip/Dip-0.9.8.tgz
>
> tar -xzvf Dip-0.9.8.tgz
> cd /path/to/Dip-0.9.8
> mkdir build
> cd build
> ../configure
> make
> make install
> COIN_INSTALL_DIR=/path/to/Dip-0.9.8/build python setup.py install
>
> To answer your questions, most Python packages can be built with "python
> setup.py install", but they may depend on libraries that one also has to
> install separately and that is the crux of the problem. They Python
> extension that is required to use DipPy will be built automatically on all
> platforms with just the Python setup command, but Dip itself must already
> be installed somewhere.
>
> If you have more questions, it would be great if you could post them to
> the Dip mailing list so that other users can benefit from the answers.
> Please do feel free to ask, though, as I would like Dip to be easy to use
> as possible. It's useful to know what roadblocks there are to using it.
>
> Cheers,
>
> Ted
>
>
> On Wed, Jan 29, 2014 at 11:16 PM, Romain Montagné <
> romain.montagne at polymtl.ca> wrote:
>
>> Hello Ted,
>>
>> I am embarrassed to continue asking for your help, I have already wasted
>> too much of your time.
>>
>> But setting up dippy is getting trickier by the day, each time a problem
>> is solved, a new one appears. Here is the last one: after coping with the
>> sudo issue, here the error I get in my terminal:
>>
>> dhcp-10-231-192-228:~ romainmontagne$ sudo -i
>> Password:
>> dhcp-10-231-192-228:~ root# export
>> COIN_INSTALL_DIR=/Users/romainmontagne/Documents/Coin
>> dhcp-10-231-192-228:~ root# easy_install coinor.dippy
>> Searching for coinor.dippy
>> Reading http://pypi.python.org/simple/coinor.dippy/
>> Best match: coinor.dippy 1.9.8
>> Downloading
>> https://pypi.python.org/packages/source/c/coinor.dippy/coinor.dippy-1.9.8.tar.gz#md5=7d14f5b85b1ebb3dcfd9538dd207ca9b
>> Processing coinor.dippy-1.9.8.tar.gz
>> Running coinor.dippy-1.9.8/setup.py -q bdist_egg --dist-dir
>> /tmp/easy_install-6zl0Pn/coinor.dippy-1.9.8/egg-dist-tmp-rnw0ec
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> In file included from src/dippy/DippyDecompAlgo.cpp:3:
>> src/dippy/DippyDecompAlgo.h: In constructor
>> 'DippyAlgoMixin::DippyAlgoMixin(UtilParameters*, PyObject*)':
>> src/dippy/DippyDecompAlgo.h:31: warning: 'DippyAlgoMixin::m_utilParam'
>> will be initialized after
>> src/dippy/DippyDecompAlgo.h:24: warning: 'PyObject*
>> DippyAlgoMixin::pDownLB'
>> src/dippy/DippyDecompAlgo.h:39: warning: when initialized here
>> src/dippy/DippyDecompAlgo.cpp: In member function 'bool
>> DippyAlgoMixin::chooseBranchSet(DecompAlgo*, std::vector<std::pair<int,
>> double>, std::allocator<std::pair<int, double> > >&,
>> std::vector<std::pair<int, double>, std::allocator<std::pair<int, double> >
>> >&, std::vector<std::pair<int, double>, std::allocator<std::pair<int,
>> double> > >&, std::vector<std::pair<int, double>,
>> std::allocator<std::pair<int, double> > >&)':
>> src/dippy/DippyDecompAlgo.cpp:29: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:29: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp: In member function 'void
>> DippyAlgoMixin::postProcessBranch(DecompAlgo*, DecompStatus)':
>> src/dippy/DippyDecompAlgo.cpp:99: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:99: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:99: warning: unused variable 'pResult'
>> src/dippy/DippyDecompAlgo.cpp: In member function 'void
>> DippyAlgoMixin::postProcessNode(DecompAlgo*, DecompStatus)':
>> src/dippy/DippyDecompAlgo.cpp:109: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:109: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:109: warning: unused variable 'pResult'
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> In file included from src/dippy/DippyDecompAlgo.cpp:3:
>> src/dippy/DippyDecompAlgo.h: In constructor
>> 'DippyAlgoMixin::DippyAlgoMixin(UtilParameters*, PyObject*)':
>> src/dippy/DippyDecompAlgo.h:31: warning: 'DippyAlgoMixin::m_utilParam'
>> will be initialized after
>> src/dippy/DippyDecompAlgo.h:24: warning: 'PyObject*
>> DippyAlgoMixin::pDownLB'
>> src/dippy/DippyDecompAlgo.h:39: warning: when initialized here
>> src/dippy/DippyDecompAlgo.cpp: In member function 'bool
>> DippyAlgoMixin::chooseBranchSet(DecompAlgo*, std::vector<std::pair<int,
>> double>, std::allocator<std::pair<int, double> > >&,
>> std::vector<std::pair<int, double>, std::allocator<std::pair<int, double> >
>> >&, std::vector<std::pair<int, double>, std::allocator<std::pair<int,
>> double> > >&, std::vector<std::pair<int, double>,
>> std::allocator<std::pair<int, double> > >&)':
>> src/dippy/DippyDecompAlgo.cpp:29: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:29: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp: In member function 'void
>> DippyAlgoMixin::postProcessBranch(DecompAlgo*, DecompStatus)':
>> src/dippy/DippyDecompAlgo.cpp:99: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:99: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:99: warning: unused variable 'pResult'
>> src/dippy/DippyDecompAlgo.cpp: In member function 'void
>> DippyAlgoMixin::postProcessNode(DecompAlgo*, DecompStatus)':
>> src/dippy/DippyDecompAlgo.cpp:109: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:109: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompAlgo.cpp:109: warning: unused variable 'pResult'
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> src/dippy/DippyDecompApp.cpp: In member function 'void
>> DippyDecompApp::createModels()':
>> src/dippy/DippyDecompApp.cpp:24: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:44: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:50: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:56: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:87: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:93: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:99: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:105: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:154: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:185: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:185: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:199: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:205: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:211: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:241: warning: comparison between signed and
>> unsigned integer expressions
>> src/dippy/DippyDecompApp.cpp:254: warning: comparison between signed and
>> unsigned integer expressions
>> src/dippy/DippyDecompApp.cpp:266: warning: comparison between signed and
>> unsigned integer expressions
>> src/dippy/DippyDecompApp.cpp:280: warning: format '%d' expects type
>> 'int', but argument 2 has type 'size_t'
>> src/dippy/DippyDecompApp.cpp:280: warning: format '%d' expects type
>> 'int', but argument 2 has type 'size_t'
>> src/dippy/DippyDecompApp.cpp:19: warning: unused variable 'len'
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual
>> DecompSolverStatus DippyDecompApp::solveRelaxed(int, const double*,
>> DecompVarList&)':
>> src/dippy/DippyDecompApp.cpp:348: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:348: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual bool
>> DippyDecompApp::APPisUserFeasible(const double*, int, double)':
>> src/dippy/DippyDecompApp.cpp:409: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:409: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual int
>> DippyDecompApp::generateCuts(const double*, DecompCutList&)':
>> src/dippy/DippyDecompApp.cpp:439: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:439: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:463: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:469: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:459: warning: unused variable 'value'
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual int
>> DippyDecompApp::APPheuristics(const double*, const double*,
>> std::vector<DecompSolution*, std::allocator<DecompSolution*> >&)':
>> src/dippy/DippyDecompApp.cpp:502: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:502: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual int
>> DippyDecompApp::generateInitVars(DecompVarList&)':
>> src/dippy/DippyDecompApp.cpp:552: warning: deprecated conversion from
>> string constant to 'char*'
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> src/dippy/DippyDecompApp.cpp: In member function 'void
>> DippyDecompApp::createModels()':
>> src/dippy/DippyDecompApp.cpp:24: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:35: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:38: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:44: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:50: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:56: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:87: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:93: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:99: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:105: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:152: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:152: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:154: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:170: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:185: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:185: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:194: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:199: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:205: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:211: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:241: warning: comparison between signed and
>> unsigned integer expressions
>> src/dippy/DippyDecompApp.cpp:247: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:254: warning: comparison between signed and
>> unsigned integer expressions
>> src/dippy/DippyDecompApp.cpp:263: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:263: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:266: warning: comparison between signed and
>> unsigned integer expressions
>> src/dippy/DippyDecompApp.cpp:280: warning: format '%d' expects type
>> 'int', but argument 2 has type 'size_t'
>> src/dippy/DippyDecompApp.cpp:280: warning: format '%d' expects type
>> 'int', but argument 2 has type 'size_t'
>> src/dippy/DippyDecompApp.cpp:285: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:19: warning: unused variable 'len'
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual
>> DecompSolverStatus DippyDecompApp::solveRelaxed(int, const double*,
>> DecompVarList&)':
>> src/dippy/DippyDecompApp.cpp:348: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:348: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:358: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual bool
>> DippyDecompApp::APPisUserFeasible(const double*, int, double)':
>> src/dippy/DippyDecompApp.cpp:409: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:409: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual int
>> DippyDecompApp::generateCuts(const double*, DecompCutList&)':
>> src/dippy/DippyDecompApp.cpp:439: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:439: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:453: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp:463: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:469: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:459: warning: unused variable 'value'
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual int
>> DippyDecompApp::APPheuristics(const double*, const double*,
>> std::vector<DecompSolution*, std::allocator<DecompSolution*> >&)':
>> src/dippy/DippyDecompApp.cpp:502: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:502: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:516: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyDecompApp.cpp: In member function 'virtual int
>> DippyDecompApp::generateInitVars(DecompVarList&)':
>> src/dippy/DippyDecompApp.cpp:552: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyDecompApp.cpp:564: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> In file included from src/dippy/DippySolve.cpp:6:
>> src/dippy/DippyDecompAlgo.h: In constructor
>> 'DippyAlgoMixin::DippyAlgoMixin(UtilParameters*, PyObject*)':
>> src/dippy/DippyDecompAlgo.h:31: warning: 'DippyAlgoMixin::m_utilParam'
>> will be initialized after
>> src/dippy/DippyDecompAlgo.h:24: warning: 'PyObject*
>> DippyAlgoMixin::pDownLB'
>> src/dippy/DippyDecompAlgo.h:39: warning: when initialized here
>> src/dippy/DippySolve.cpp: In function 'PyObject* Solve(PyObject*,
>> PyObject*)':
>> src/dippy/DippySolve.cpp:148: warning: unused variable 'size'
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> In file included from src/dippy/DippySolve.cpp:6:
>> src/dippy/DippyDecompAlgo.h: In constructor
>> 'DippyAlgoMixin::DippyAlgoMixin(UtilParameters*, PyObject*)':
>> src/dippy/DippyDecompAlgo.h:31: warning: 'DippyAlgoMixin::m_utilParam'
>> will be initialized after
>> src/dippy/DippyDecompAlgo.h:24: warning: 'PyObject*
>> DippyAlgoMixin::pDownLB'
>> src/dippy/DippyDecompAlgo.h:39: warning: when initialized here
>> src/dippy/DippySolve.cpp: In function 'PyObject* Solve(PyObject*,
>> PyObject*)':
>> src/dippy/DippySolve.cpp:148: warning: unused variable 'size'
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> src/dippy/DippyModule.cpp: In function 'void init_dippy()':
>> src/dippy/DippyModule.cpp:23: warning: unused variable 'pMod'
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> src/dippy/DippyModule.cpp: In function 'void init_dippy()':
>> src/dippy/DippyModule.cpp:23: warning: unused variable 'pMod'
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> src/dippy/DippyPythonUtils.cpp: In function 'void
>> pyColDict_AsPairedVector(PyObject*, std::vector<std::pair<int, double>,
>> std::allocator<std::pair<int, double> > >&, std::map<PyObject*, int,
>> std::less<PyObject*>, std::allocator<std::pair<PyObject* const, int> > >)':
>> src/dippy/DippyPythonUtils.cpp:192: warning: comparison between signed
>> and unsigned integer expressions
>> src/dippy/DippyPythonUtils.cpp:193: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyPythonUtils.cpp: In function 'int
>> pyColDict_AsPackedArrays(PyObject*, std::map<PyObject*, int,
>> std::less<PyObject*>, std::allocator<std::pair<PyObject* const, int> > >,
>> int**, double**)':
>> src/dippy/DippyPythonUtils.cpp:230: warning: comparison between signed
>> and unsigned integer expressions
>> src/dippy/DippyPythonUtils.cpp:231: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyPythonUtils.cpp: In function 'CoinPackedMatrix*
>> pyConstraints_AsPackedMatrix(PyObject*, std::map<PyObject*, int,
>> std::less<PyObject*>, std::allocator<std::pair<PyObject* const, int> > >,
>> std::map<PyObject*, int, std::less<PyObject*>,
>> std::allocator<std::pair<PyObject* const, int> > >)':
>> src/dippy/DippyPythonUtils.cpp:261: warning: unused variable 'lb'
>> src/dippy/DippyPythonUtils.cpp:261: warning: unused variable 'ub'
>> cc1plus: warning: command line option "-Wstrict-prototypes" is valid for
>> Ada/C/ObjC but not for C++
>> src/dippy/DippyPythonUtils.cpp: In function 'PyObject*
>> pyTupleList_FromDoubleArray(const double*, PyObject*)':
>> src/dippy/DippyPythonUtils.cpp:23: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyPythonUtils.cpp: In function 'void
>> pyColDict_AsPairedVector(PyObject*, std::vector<std::pair<int, double>,
>> std::allocator<std::pair<int, double> > >&, std::map<PyObject*, int,
>> std::less<PyObject*>, std::allocator<std::pair<PyObject* const, int> > >)':
>> src/dippy/DippyPythonUtils.cpp:181: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyPythonUtils.cpp:192: warning: comparison between signed
>> and unsigned integer expressions
>> src/dippy/DippyPythonUtils.cpp:193: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyPythonUtils.cpp: In function 'int
>> pyColDict_AsPackedArrays(PyObject*, std::map<PyObject*, int,
>> std::less<PyObject*>, std::allocator<std::pair<PyObject* const, int> > >,
>> int**, double**)':
>> src/dippy/DippyPythonUtils.cpp:217: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyPythonUtils.cpp:230: warning: comparison between signed
>> and unsigned integer expressions
>> src/dippy/DippyPythonUtils.cpp:231: warning: deprecated conversion from
>> string constant to 'char*'
>> src/dippy/DippyPythonUtils.cpp: In function 'CoinPackedMatrix*
>> pyConstraints_AsPackedMatrix(PyObject*, std::map<PyObject*, int,
>> std::less<PyObject*>, std::allocator<std::pair<PyObject* const, int> > >,
>> std::map<PyObject*, int, std::less<PyObject*>,
>> std::allocator<std::pair<PyObject* const, int> > >)':
>> src/dippy/DippyPythonUtils.cpp:258: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyPythonUtils.cpp:268: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyPythonUtils.cpp:285: warning: implicit conversion shortens
>> 64-bit value into a 32-bit value
>> src/dippy/DippyPythonUtils.cpp:261: warning: unused variable 'lb'
>> src/dippy/DippyPythonUtils.cpp:261: warning: unused variable 'ub'
>> ld: warning: directory not found for option
>> '-L/Users/jenkins/slave/workspace/all-1.7.4-macosx-x86_64-clang500.2.76/1.7.4/build/lib'
>> ld: warning: directory not found for option
>> '-L/usr/local/gfortran/lib/gcc/x86_64-apple-darwin11/4.6.2'
>> ld: warning: directory not found for option
>> '-L/usr/local/gfortran/lib/gcc/x86_64-apple-darwin11/4.6.2/../../..'
>> ld: warning: directory not found for option
>> '-L/Users/jenkins/slave/workspace/all-1.7.4-macosx-x86_64-clang500.2.76/1.7.4/build/lib'
>> ld: library not found for -lgfortran
>> collect2: ld returned 1 exit status
>> ld: warning: directory not found for option
>> '-L/Users/jenkins/slave/workspace/all-1.7.4-macosx-x86_64-clang500.2.76/1.7.4/build/lib'
>> ld: warning: directory not found for option
>> '-L/usr/local/gfortran/lib/gcc/x86_64-apple-darwin11/4.6.2'
>> ld: warning: directory not found for option
>> '-L/usr/local/gfortran/lib/gcc/x86_64-apple-darwin11/4.6.2/../../..'
>> ld: warning: directory not found for option
>> '-L/Users/jenkins/slave/workspace/all-1.7.4-macosx-x86_64-clang500.2.76/1.7.4/build/lib'
>> ld: library not found for -lgfortran
>> collect2: ld returned 1 exit status
>> lipo: can't open input file: /var/tmp//cclF0Brz.out (No such file or
>> directory)
>> error: Setup script exited with error: command 'llvm-g++-4.2' failed with
>> exit status 1
>>
>> You may know what is wrong again?
>>
>> Out of curiosity, why can't all programs be set up with a "python
>> setup.py"? I suppose that requires additional effort for the computer
>> scientist who makes the program?
>>
>> Again, thank you for responding to the previous mails!
>>
>> Romain
>>
>>
>> Le 28 janv. 2014 à 01:21, Ted Ralphs a écrit :
>>
>> The reason you are still getting the key error is because of the sudo
>> command. sudo logs you in as another user who does not inherit your
>> environment variables. You need to do
>>
>> sudo COIN_INSTALL_DIR=... python setup.py
>>
>> Alternatively, you could use virtualenv or Homebrew Python to avoid sudo.
>>
>> For some reason, you are still getting the source distribution rather
>> than the binary, but I guess the reason is probably that you are using an
>> older version of OS X and/or Python.
>>
>> Everything should work easily on Linux. To avoid issues with not being
>> admin, you can use virtualenv. I don't believe there could be an
>> incompatibility with a particular flavor of Linux if you are building from
>> source. With binaries you may not have compatibility because of the version
>> of libc installed or something like that. But in general, I've never met a
>> Linux machine that Dip wouldn't build and install on out of the box.
>>
>> Cheers,
>>
>> Ted
>>
>>
>> On Mon, Jan 27, 2014 at 12:06 PM, Romain Montagné <
>> romain.montagne at polymtl.ca> wrote:
>>
>>> Hello,
>>>
>>> I tried downloading dippy on my computer at the lab (GERAD) with some
>>> help, but new problems arose: the technician told me they were due to the
>>> fact that
>>>
>>> - I am not admin
>>>
>>> - there seems to be incompatibilities between dippy and Oracle linux 6.3
>>>
>>> Does that make any sense?
>>>
>>>
>>> I tried again on my mac-os, because it seems much simpler with
>>> easy_install as you advised:
>>>
>>> dhcp-10-231-192-228:~ romainmontagne$ uname -a
>>> Darwin dhcp-10-231-192-228 11.4.2 Darwin Kernel Version 11.4.2: Thu Aug
>>> 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64 x86_64 %my
>>> mac os is 64 bits after all
>>>
>>>
>>> dhcp-10-231-192-228:~ romainmontagne$ cd
>>> /Users/romainmontagne/Documents/Coin
>>> dhcp-10-231-192-228:Coin romainmontagne$ ls %the binaries are in this
>>> directory
>>> bin include lib share
>>>
>>>
>>> dhcp-10-231-192-228:Coin romainmontagne$ export
>>> COIN_INSTALL_DIR=/Users/romainmontagne/Documents/Coin %like you told me
>>> to do
>>> dhcp-10-231-192-228:Coin romainmontagne$ sudo easy_install coinor.dippy
>>> Password:
>>> Searching for coinor.dippy
>>> Reading http://pypi.python.org/simple/coinor.dippy/
>>> Best match: coinor.dippy 1.9.8
>>> Downloading
>>> https://pypi.python.org/packages/source/c/coinor.dippy/coinor.dippy-1.9.8.tar.gz#md5=7d14f5b85b1ebb3dcfd9538dd207ca9b
>>> Processing coinor.dippy-1.9.8.tar.gz
>>> Running coinor.dippy-1.9.8/setup.py -q bdist_egg --dist-dir
>>> /tmp/easy_install-Q6hWNr/coinor.dippy-1.9.8/egg-dist-tmp-D_QuHi
>>> Traceback (most recent call last):
>>> File "/usr/bin/easy_install-2.7", line 10, in <module>
>>> load_entry_point('setuptools==0.6c12dev-r85381', 'console_scripts',
>>> 'easy_install')()
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py",
>>> line 1712, in main
>>> with_ei_usage(lambda:
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py",
>>> line 1700, in with_ei_usage
>>> return f()
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py",
>>> line 1716, in <lambda>
>>> distclass=DistributionWithoutHelpCommands, **kw
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/core.py",
>>> line 152, in setup
>>> dist.run_commands()
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py",
>>> line 953, in run_commands
>>> self.run_command(cmd)
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py",
>>> line 972, in run_command
>>> cmd_obj.run()
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py",
>>> line 211, in run
>>> self.easy_install(spec, not self.no_deps)
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py",
>>> line 446, in easy_install
>>> return self.install_item(spec, dist.location, tmpdir, deps)
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py",
>>> line 476, in install_item
>>> dists = self.install_eggs(spec, download, tmpdir)
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py",
>>> line 655, in install_eggs
>>> return self.build_and_install(setup_script, setup_base)
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py",
>>> line 930, in build_and_install
>>> self.run_setup(setup_script, setup_base, args)
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py",
>>> line 919, in run_setup
>>> run_setup(setup_script, args)
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/sandbox.py",
>>> line 62, in run_setup
>>> lambda: execfile(
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/sandbox.py",
>>> line 105, in run
>>> return func()
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/sandbox.py",
>>> line 64, in <lambda>
>>> {'__file__':setup_script, '__name__':'__main__'}
>>> File "setup.py", line 15, in <module>
>>> File
>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/UserDict.py",
>>> line 23, in __getitem__
>>> raise KeyError(key)
>>> KeyError: 'COIN_INSTALL_DIR'
>>>
>>>
>>>
>>> Can't get rid of the key error...
>>>
>>> What is weird is that my mac os uses 64 bits, but in Python, if I type
>>> platform.architecture(), it returns "32 bits". Any chance the problem comes
>>> from there?
>>>
>>> Thanks again!
>>>
>>> Romain
>>>
>>>
>>>
>>>
>>> Le 26 janv. 2014 à 23:01, Ted Ralphs a écrit :
>>>
>>> Hi Romain,
>>>
>>> Yes, that would be an issue. I guess that Dip should build easily out of
>>> the box if you want to use OS X.
>>>
>>> Cheers,
>>>
>>> Ted
>>>
>>>
>>> On Sun, Jan 26, 2014 at 10:54 PM, Romain Montagné <
>>> romain.montagne at polymtl.ca> wrote:
>>>
>>>> Hello,
>>>>
>>>> Thank you for the very quick and detailed response.
>>>>
>>>> It still doesn't work, I think its because I'm using a 32 bit macosx
>>>> (and not 64), and I did not find such a binary distribution. I will try
>>>> tomorrow on a linux platform and keep you posted.
>>>>
>>>> Best regards,
>>>>
>>>> Romain
>>>>
>>>>
>>>>
>>>> Le 26 janv. 2014 à 21:39, Ted Ralphs a écrit :
>>>>
>>>> Hi Romaine,
>>>>
>>>> What command are you using to install---easy_install or pip? I uploaded
>>>> a binary package for OSX, but I think it's built with Homebrew. Somehow,
>>>> you are ending up with a source distribution---this is either because you
>>>> are using pip or because there is no binary matching your version of
>>>> Python. In either case, the solution is to install Dip somewhere then set
>>>> the environment variable COIN_INSTALL_DIR to the location of the
>>>> installation. To install COIN, you can either download a binary
>>>> distribution for OSX from here:
>>>>
>>>>
>>>> http://www.coin-or.org/download/binary/CoinAll/COIN-OR-1.7.4-macosx-x86_64-clang500.2.76.tgz
>>>>
>>>> or you can build Dip yourself, according to the quick start
>>>> instructions here:
>>>>
>>>> https://projects.coin-or.org/Dip/
>>>>
>>>> After installing, just set COIN_INSTALL_DIR to the location of the
>>>> installation directory and then everything should work. I'll try to make
>>>> the error message a bit more informative.
>>>>
>>>> I will also try to build and upload a binary package for the system
>>>> Python on OSX, which would mean installing with easy_install should then
>>>> work out of the box.
>>>>
>>>> Cheers,
>>>>
>>>> Ted
>>>>
>>>>
>>>> On Sun, Jan 26, 2014 at 9:22 PM, Stuart Mitchell <
>>>> stu at stuartmitchell.com> wrote:
>>>>
>>>>> I think you should contact the dippy devs micheal or Ted for this
>>>>> problem
>>>>> On 27 Jan 2014 10:21, "Romain Montagné" <romain.montagne at polymtl.ca>
>>>>> wrote:
>>>>>
>>>>>> Thank you. I hate to continue bothering you, but i get the following
>>>>>> error in my terminal:
>>>>>>
>>>>>>
>>>>>> Downloading/unpacking coinor.dippy
>>>>>> Downloading coinor.dippy-1.9.8.tar.gz (2.1MB): 2.1MB downloaded
>>>>>> Running setup.py egg_info for package coinor.dippy
>>>>>> Traceback (most recent call last):
>>>>>> File "<string>", line 16, in <module>
>>>>>> File
>>>>>> "/var/folders/tz/vj_t06957xgfs3mq910ny_zh0000gn/T/pip-build/coinor.dippy/setup.py",
>>>>>> line 15, in <module>
>>>>>> coin_install_dir = os.environ['COIN_INSTALL_DIR']
>>>>>> File
>>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/UserDict.py",
>>>>>> line 23, in __getitem__
>>>>>> raise KeyError(key)
>>>>>> KeyError: 'COIN_INSTALL_DIR'
>>>>>> Complete output from command python setup.py egg_info:
>>>>>> Traceback (most recent call last):
>>>>>>
>>>>>> File "<string>", line 16, in <module>
>>>>>>
>>>>>> File
>>>>>> "/var/folders/tz/vj_t06957xgfs3mq910ny_zh0000gn/T/pip-build/coinor.dippy/setup.py",
>>>>>> line 15, in <module>
>>>>>>
>>>>>> coin_install_dir = os.environ['COIN_INSTALL_DIR']
>>>>>>
>>>>>> File
>>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/UserDict.py",
>>>>>> line 23, in __getitem__
>>>>>>
>>>>>> raise KeyError(key)
>>>>>>
>>>>>> KeyError: 'COIN_INSTALL_DIR'
>>>>>>
>>>>>> ----------------------------------------
>>>>>> Command python setup.py egg_info failed with error code 1 in
>>>>>> /var/folders/tz/vj_t06957xgfs3mq910ny_zh0000gn/T/pip-build/coinor.dippy
>>>>>>
>>>>>>
>>>>>>
>>>>>> It's killing me to not find the solution. Have you ever seen this
>>>>>> error?
>>>>>>
>>>>>> Romain
>>>>>>
>>>>>>
>>>>>> Le 26 janv. 2014 à 19:54, Stuart Mitchell a écrit :
>>>>>>
>>>>>> I think coinor.dippy is what you want.
>>>>>> On 27 Jan 2014 03:18, "Romain Montagné" <romain.montagne at polymtl.ca>
>>>>>> wrote:
>>>>>>
>>>>>>> Thanks for the tip. However I have been struggling trying to install
>>>>>>> DIPPY. When i "pip install dippy", I think it downloads this package:
>>>>>>> https://pypi.python.org/pypi/Dippy , which evidently isn't what I
>>>>>>> need!
>>>>>>>
>>>>>>> Any suggestions?
>>>>>>>
>>>>>>> Thanks!
>>>>>>>
>>>>>>> Romain
>>>>>>>
>>>>>>> Le 14 juil. 2013 à 19:48, Stuart Mitchell a écrit :
>>>>>>>
>>>>>>> Yeah this is a problem.
>>>>>>>
>>>>>>> To fully solve this problem you need a branch and price framework, I
>>>>>>> can suggest DIPPY
>>>>>>> http://www.optimization-online.org/DB_FILE/2011/02/2921.pdf
>>>>>>>
>>>>>>> Stu
>>>>>>>
>>>>>>>
>>>>>>> On Sat, Jul 13, 2013 at 7:51 AM, Romain Montagné <
>>>>>>> romain.montagne at polymtl.ca> wrote:
>>>>>>>
>>>>>>>> Hello Stuart,
>>>>>>>>
>>>>>>>> Thanks to your different examples available online (optimization
>>>>>>>> with Pulp), I have learned so much. In particular, your example of the
>>>>>>>> Cutting Stock Problem using Column Generation has helped me a lot
>>>>>>>> understand column generation.
>>>>>>>>
>>>>>>>> However, there is a point that remains mysterious: you solve the
>>>>>>>> Relaxed Master Problem and the SubProblem until the SubProblem's objective
>>>>>>>> is positive. Then, you solve the Master Problem one last time, but this
>>>>>>>> time with Integrity constraints. However it is not guaranteed that, at this
>>>>>>>> point, solving the Master Problem with Integrity constraints will give you
>>>>>>>> the optimal solution. Let me clarify my point with a trivial example:
>>>>>>>>
>>>>>>>> Consider the following Cutting Stock Problem:
>>>>>>>> -You have big rolls of standard width 90 cm
>>>>>>>> -You can cut it into small rolls of widths 30 cm or 45 cm
>>>>>>>> -You have the following demand: you need to produce one 30cm roll,
>>>>>>>> and one 45cm roll
>>>>>>>> -You simply want to minimize the amount of big rolls used
>>>>>>>>
>>>>>>>> The obvious optimal solution would be to cut one big roll using the
>>>>>>>> pattern P0=[1,1].
>>>>>>>>
>>>>>>>> If you start the column generation algorithm using the patterns P1=
>>>>>>>> [3,0] and P2= [0,2], solving the first subproblem gives a positive reduced
>>>>>>>> cost, which means the relaxed Master Problem is optimal: indeed, using 0.5
>>>>>>>> of P2 and 0.333 of P1 gives an objective equal to 0.83. However, solving
>>>>>>>> the Master Problem with the integrity constraints gives an objective equal
>>>>>>>> to 2 (two big rolls are cut, one of P1, the other of P2).
>>>>>>>>
>>>>>>>> The conclusion of this is that the column generation approach as
>>>>>>>> described in your example gives the optimal solution for the Relaxed Master
>>>>>>>> Problem. I suppose obtaining the optimal solution for the Master Problem
>>>>>>>> with integrity constraints requires some sort of sophisticated branching
>>>>>>>> scheme...
>>>>>>>>
>>>>>>>> How do you deal with this point? What do you generally tell your
>>>>>>>> students regarding this?
>>>>>>>>
>>>>>>>> Thank you for your help.
>>>>>>>>
>>>>>>>> Best regards,
>>>>>>>>
>>>>>>>> Romain
>>>>>>>>
>>>>>>>>
>>>>>>>> Le 26 mai 2013 à 00:20, Stuart Mitchell a écrit :
>>>>>>>>
>>>>>>>> No you don't have too its just easier for debugging.
>>>>>>>> On 26 May 2013 13:27, "Romain Montagné" <romain.montagne at polymtl.ca>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Hello Stuart,
>>>>>>>>>
>>>>>>>>> I am an OR student at Polytechnique Montreal, I discovered Pulp a
>>>>>>>>> few weeks ago and I must say, I am absolutely thrilled by its simplicity
>>>>>>>>> and effectiveness. Thank you! I am very grateful.
>>>>>>>>>
>>>>>>>>> As you say in one of your papers, using python is a relief
>>>>>>>>> compared to "the agony of C++" !
>>>>>>>>>
>>>>>>>>> I have a question though, why is it necessary to write the
>>>>>>>>> problems' data in an lp. file ? (e.g. :
>>>>>>>>> prob.writeLP("BeerDistributionProblem.lp"))
>>>>>>>>>
>>>>>>>>> I have tried to solve the problem without writing this line, and
>>>>>>>>> it works, so I was wondering why you do that. Is it easier for the solver
>>>>>>>>> to read it this way or something?
>>>>>>>>>
>>>>>>>>> Thank you very much for you help, and for your contribution to
>>>>>>>>> Operations Research!
>>>>>>>>>
>>>>>>>>> Best Regards,
>>>>>>>>>
>>>>>>>>> Romain
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Stuart Mitchell
>>>>>>> PhD Engineering Science
>>>>>>> Extraordinary Freelance Programmer and Optimisation Guru
>>>>>>> www.stuartmitchell.com
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>
>>>>
>>>> --
>>>> Dr. Ted Ralphs
>>>> Associate Professor, Lehigh University
>>>> (610) 628-1280
>>>> ted 'at' lehigh 'dot' edu
>>>> coral.ie.lehigh.edu/~ted
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Dr. Ted Ralphs
>>> Associate Professor, Lehigh University
>>> (610) 628-1280
>>> ted 'at' lehigh 'dot' edu
>>> coral.ie.lehigh.edu/~ted
>>>
>>>
>>>
>>
>>
>> --
>> Dr. Ted Ralphs
>> Associate Professor, Lehigh University
>> (610) 628-1280
>> ted 'at' lehigh 'dot' edu
>> coral.ie.lehigh.edu/~ted
>>
>>
>>
>
>
> --
> Dr. Ted Ralphs
> Associate Professor, Lehigh University
> (610) 628-1280
> ted 'at' lehigh 'dot' edu
> coral.ie.lehigh.edu/~ted
>
>
>
--
Dr. Ted Ralphs
Associate Professor, Lehigh University
(610) 628-1280
ted 'at' lehigh 'dot' edu
coral.ie.lehigh.edu/~ted
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