8.5.2. 异常返回码

8.5.2.1. C/C++ 中的异常返回码

运行的结果码，或者说错误码，Error Code。

结果码	结果状态	中文说明	英文说明
0	MDO_OKAY	没有异常	Nothing wrong.
-1	MDO_ERROR	未指明的内部错误	Unspecified internal error.
-2	MDO_NOMEMORY	内存不足	Insufficient memory.
-3	MDO_INVALID_ARGUMENT	参数无效	Arguments is not valid.
-10	MDO_INVALID_LICENSE	许可证无效	License is not valid.
-11	MDO_HOME_ENV_NOT_FOUND	环境变量 MINDOPT_HOME 未找到	MINDOPT_HOME not exists.
-12	MDO_DLL_ERROR	MindOpt的动态库加载失败	Failed to load a dynamic library.
-1000	MDO_IO_ERROR	IO 通信错误	(I/O) General IO error.
-1001	MDO_FILE_READ_ERROR	读取文件数据失败	(I/O) Failed to read data from file.
-1002	MDO_FILE_WRITE_ERROR	写文件数据失败	(I/O) Failed to write data to file.
-1003	MDO_DIRECTORY_ERROR	路径错误	(I/O) Invalid directory.
-1100	MDO_FORMAT_ERROR	文件解析错误	(I/O) Failed to parse the file.
-1101	MDO_VERSION_ERROR	客户端和服务端版本不一致	(I/O) Failed to load model/parameter from file due to incompatiable version error.
-1200	MDO_REMOTE_INVALID_TOKEN	远程计算服务中输入的 token ID 无效	(I/O) The input token ID for the remote computing is not valid.
-1201	MDO_REMOTE_CONNECTION_ERROR	与远程计算服务器连接错误	(I/O) Failed to connect to the remote computing server.
-2000	MDO_MODEL_INPUT_ERROR	输入或读取优化模型错误	Failed to input/load a model.
-2001	MDO_MODEL_EMPTY	优化模型为空	Model is empty.
-2002	MDO_MODEL_INVALID_ROW_IDX	模型的行指标无效	Row index is not valid.
-2003	MDO_MODEL_INVALID_COL_IDX	模型的列指标无效	Column index is not valid.
-2004	MDO_MODEL_INVALID_ROW_NAME	模型的行名称无效	Row name is not valid.
-2005	MDO_MODEL_INVALID_COL_NAME	模型的列名称无效	Column name is not valid.
-2006	MDO_MODEL_INVALID_SYM_MAT_IDX	对称矩阵的索引无效	Index of the symmetric matrix is not valid.
-2007	MDO_MODEL_INVALID_SYM_MAT_ROW_IDX	对称矩阵的行索引无效	Row index of a symmetric matrix is not valid.
-2008	MDO_MODEL_INVALID_SYM_MAT_COL_IDX	对称矩阵的列索引无效	Column index of a symmetric matrix is not valid.
-2010	MDO_MODEL_INVALID_STR_ATTR	字符串型属性无法识别	A string attribute was not recognized.
-2011	MDO_MODEL_INVALID_INT_ATTR	整数型属性无法识别	An integer attribute was not recognized.
-2012	MDO_MODEL_INVALID_REAL_ATTR	实数型属性无法识别	A real attribute was not recognized.
-2013	MDO_MODEL_INVALID_REAL_ATTR_SYM_MAT	对称矩阵的实数性属性无法识别	A real attribute for symmetric matirx was not recognized.
-2014	MDO_MODEL_INVALID_CHAR_ATTR	模型的字符属性无法识别	A char attribute was not recognized.
-2019	MDO_MODEL_INVALID_ATTR_NAME	模型的属性名称无法识别	A name for attribute was not recognized.
-3000	MDO_NO_SOLN	问题的解不可用	Solution is not available.
-3001	MDO_NO_RAY	始射线不可用	Unbounded ray is not available.
-3002	MDO_NO_STATISTICS	求解器的统计信息不可用	Solver statistics is not available.
-3003	MDO_INVALID_BASIS_STATUS	无法识别的 basis 状态值	Unrecognized basis status.
-3004	MDO_IIS_NO_SOLN	当前模型的 IIS 不可用	No IIS available for the current model.
-3005	MDO_IIS_FEASIBLE	可解模型的 IIS 不可用	IIS is not available on a feasible model.
-4000	MDO_PARAM_SET_ERROR	设置参数错误	Failed to change a parameter value.
-4001	MDO_PARAM_GET_ERROR	获取参数错误	Failed to retrieve a parameter value.
-9000	MDO_ABORT_ITERATION_LIMIT	求解已达到最大迭代数	Iteration limit was reached in optimization.
-9001	MDO_ABORT_TIME_LIMIT	求解时长已超过限制	Time limit was reached in optimization.
-9002	MDO_ABORT_CTRL_C	求解中遇到Ctrl+C命令中断求解过程	Control-C command was captured in optimization.
-9003	MDO_ABORT_NODE_LIMIT	求解节点数已达到she限制	Node limit was reached in optimization.
-9004	MDO_ABORT_STALLING_NODE_LIMIT	连续未能发现更优解的节点数超过限制	Stalling node limit was reached in optimization.
-9011	MDO_ABORT_INVALID_METHOD	您选择的优化算法当前不支持	Selected optimization method is not supported.
-9012	MDO_ABORT_SOLVER_NOT_AVAILABLE	求解器不支持求解输入的问题	Optimization solver is not available for the input model.
-10000~-19999	MDO_SIMPLEX_NUMERIC	单纯形法的数值错误	Numerical difficulties in Simplex algorithm.
-20000~-29999	MDO_INTERIOR_NUMERIC	内点法的数值错误	Numerical difficulties in Interior-point algorithm.
-30000	MDO_IIS_NUMERIC	计算IIS时发生数值错误	Numerical difficulties occurred while computing IIS.

8.5.2.2. Python

MindOpt Python SDK 中的异常返回码及其说明可以通过以下方式获得：

model = MdoModel()
try:

    # Input and solve the problem.
    ...
    model.solve_prob()

except MdoError as e:
    print("Received Mindopt exception.")
    print(" - Code          : {}".format(e.code))
    print(" - Reason        : {}".format(e.message))