Question

尝试使用TSP包接口使用concorde算法解决着名的TSP问题导致状态127。我在concorde_path（）中放置了concorde可执行文件的路径。并运行concorde_help（）命令，该命令导致状态127警告消息。在运行solve_TSP函数时遇到以下错误

data("USCA312")
solve_TSP(USCA312, method = "concorde", control = list(clo = "-V"))
Used parameters:
clo  =  -V
precision    =  6
exe  =  C:/Users/gourav.trivedi/Downloads/concorde
verbose  =  TRUE
Warning in tsp_concorde(x_, control = control) :
  Concorde can only handle distances < 2^31. Reducing precision for Concorde to 3
Error in tsp_concorde(x_, control = control) : 
  Problems with reading Concorde's output.
Is concorde properly installed?
For details see ? Concorde
In addition: Warning message:
running command '"C:/Users/gourav.trivedi/Downloads/concorde" -x -V -o file38087a417c0e.sol file38087a417c0e.dat' had status 127

Answer 1

我没有Windows（它在Linux上运行正常），但您需要检查：

1）协和广告适用于您的系统。它需要Cygwin（见http://www.math.uwaterloo.ca/tsp/concorde/downloads/downloads.htm）。尝试从命令行界面执行示例。

2）路径正确。

希望这有帮助。

TSP Concorde因状态127消息而失败

1 个答案: