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最近我想尝试一些开源求解器而不是 CPLEX。我发现 PICOS + zibopt 可能是一个不错的选择。但是，我只能找到有关如何使 zibopt 在 windows 下正确使用 python 的说明。我下载了scip的windows库（.dll文件），并尝试根据命令“python setup.py install”安装python-zibopt。总是弹出错误“ blockmemshell/memory.h no such file”。我觉得是因为我的编译器VS120COMNTOOL没有找到scip求解器。我现在有没有机会让 scip 在 Windows 下工作？

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1 回答 1

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你看过 SCIP 3.1.0 当前的 python 界面了吗？它使用 SCIP 优化套件中的库，因此您不必将另一个 LP 求解器链接到 SCIP。在 Windows 上，请尝试这个修改后的 setup.py 文件：

import sys, os, readline, glob, platform
from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
from Cython.Build import cythonize

BASEDIR = os.path.dirname(os.path.abspath(__file__))
BASEDIR = os.path.dirname(BASEDIR)
BASEDIR = os.path.dirname(BASEDIR)
INCLUDEDIR = os.path.join(BASEDIR,'src')
BASEDIR = os.path.dirname(BASEDIR)

#identify compiler version
prefix = "MSC v."
i = sys.version.find(prefix)
if i == -1:
  raise Exception('cannot determine compiler version')
i = i + len(prefix)
s, rest = sys.version[i:].split(" ", 1)
majorVersion = int(s[:-2]) - 6
minorVersion = int(s[2:3]) / 10.0

if platform.architecture()[0].find('64')>=0:
  LIBDIR  = os.path.join(BASEDIR,'vc'+str(majorVersion),'scip_spx','x64','Release')
else:
  LIBDIR  = os.path.join(BASEDIR,'vc'+str(majorVersion),'scip_spx','Release')
print('BASEDIR='+ BASEDIR)
print('INCLUDEDIR='+ INCLUDEDIR)
print('LIBDIR='+ LIBDIR)

def complete(text, state):
  return (glob.glob(text+'*')+[None])[state]

readline.set_completer_delims(' \t\n;')
readline.parse_and_bind("tab: complete")
readline.set_completer(complete)

libscipopt = 'lib/libscipopt.so'
includescip = 'include/scip'

ext_modules = []

ext_modules += [Extension('pyscipopt.scip', [os.path.join('pyscipopt', 'scip.pyx')],
                      #extra_compile_args=['-g', '-O0', '-UNDEBUG'],
                      include_dirs=[INCLUDEDIR],
                      library_dirs=[LIBDIR],
                      #runtime_library_dirs=[os.path.abspath('lib')],
                      libraries=['spx', 'scip_spx'])]
                      #libraries=['scipopt', 'readline', 'z', 'gmp', 'ncurses', 'm'])]

setup(
  name = 'pyscipopt',
  version = '0.1',
  description = 'wrapper for SCIP in Python',
  author = 'Zuse Institute Berlin',
  author_email = 'scip@zib.de',
  license = 'MIT',
  cmdclass = {'build_ext' : build_ext},
  ext_modules = ext_modules,
  packages=['pyscipopt']
)
于 2014-11-03T12:26:33.260 回答