Question

我正在尝试将Python 2.6嵌入到MATLAB（7.12）中。我想嵌入一个用C编写的mex文件。这对于使用标量的小型简单示例很有用。但是，如果导入Numpy（1.6.1），MATLAB崩溃了。无论如何我说，因为我尝试了很多方法来加载numpy库，包括

在python模块（.py）中：
```
from numpy import *
```

在mex文件中使用PyRun_SimpleString：

PyRun_SimpleString(“from numpy import *”);

使用Py_oBject_CallObject调用numpy函数：

pOut  = PyObject_CallObject(pFunc, pArgs);

最初，我认为这可能是将Numpy嵌入C中的问题。但是，当嵌入在使用Visual Studio 2005 C编译器的/ MD（多线程）开关从命令行编译的简单C文件中时，Numpy工作正常。接下来，我想我只需要在MATLAB中更改make文件以包含/ MD开关。没有这样的运气，mexopts.bat与/ MD开关编译。我还手动注释了Numpy init模块中的行，以找出崩溃的MATLAB。似乎加载任何扩展名为pyd的文件会导致MATLAB崩溃。在NumPy中加载的第一个这样的文件是multiarray.pyd。 MATLAB文档描述了如何使用Visual Studio调试mex文件，并在下面放置了错误消息。在这一点上，我知道问题是pyd的内存问题和MATLAB的一些冲突。有趣的是，我可以在MATLAB中使用系统命令来启动使用numpy的python中的进程，并且不会生成错误。我将在MATLAB的错误消息下面粘贴，然后在可视化工作室中粘贴MATLAB崩溃的过程中的DEBUG输出。但是，我并没有粘贴整个事情，因为第一次机会的例外列表很长。有没有解决这个集成问题的建议？

MATLAB error
Matlab has encountered an internal problem and needs to close 
MATLAB crash file:C:\Users\pml355\AppData\Local\Temp\matlab_crash_dump.3484-1:


------------------------------------------------------------------------
       Segmentation violation detected at Tue Oct 18 12:19:03 2011
------------------------------------------------------------------------

Configuration:
  Crash Decoding  : Disabled
  Default Encoding: windows-1252
  MATLAB License  : 163857
  MATLAB Root     : C:\Program Files\MATLAB\R2011a
  MATLAB Version  : 7.12.0.635 (R2011a)
  Operating System: Microsoft Windows 7
  Processor ID    : x86 Family 6 Model 7 Stepping 10, GenuineIntel
  Virtual Machine : Java 1.6.0_17-b04 with Sun Microsystems Inc. Java HotSpot(TM) Client VM mixed mode
  Window System   : Version 6.1 (Build 7600)

Fault Count: 1

Abnormal termination:
Segmentation violation

Register State (from fault):
  EAX = 00000001  EBX = 69c38c20
  ECX = 00000001  EDX = 24ae1da8
  ESP = 0088af0c  EBP = 0088af44
  ESI = 69c38c20  EDI = 24ae1da0

  EIP = 69b93d31  EFL = 00010202

   CS = 0000001b   DS = 00000023   SS = 00000023
   ES = 00000023   FS = 0000003b   GS = 00000000


Stack Trace (from fault):
[  0] 0x69b93d31 C:/Python26/Lib/site-packages/numpy/core/multiarray.pyd+00081201 ( ???+000000 )
[  1] 0x69bfead4 C:/Python26/Lib/site-packages/numpy/core/multiarray.pyd+00518868 ( ???+000000 )
[  2] 0x69c08039 C:/Python26/Lib/site-packages/numpy/core/multiarray.pyd+00557113 ( ???+000000 )
[  3] 0x08692b09                           C:/Python26/python26.dll+00076553 ( PyEval_EvalFrameEx+007833 )
[  4] 0x08690adf                           C:/Python26/python26.dll+00068319 ( PyEval_EvalCodeEx+002255 )



This error was detected while a MEX-file was running. If the MEX-file
is not an official MathWorks function, please examine its source code
for errors. Please consult the External Interfaces Guide for information
on debugging MEX-files.

If this problem is reproducible, please submit a Service Request via:
    http://www.mathworks.com/support/contact_us/

A technical support engineer might contact you with further information.

Thank you for your help.

Visual Studios DEBUGGER的输出

First-chance exception at 0x0c12c128 in MATLAB.exe: 0xC0000005: Access violation reading location 0x00000004.
First-chance exception at 0x0c12c128 in MATLAB.exe: 0xC0000005: Access violation reading location 0x00000004.
First-chance exception at 0x0c12c128 in MATLAB.exe: 0xC0000005: Access violation reading location 0x00000004.
First-chance exception at 0x751d9673 in MATLAB.exe: Microsoft C++ exception: jitCgFailedException at memory location 0x00c3e210..
First-chance exception at 0x751d9673 in MATLAB.exe: Microsoft C++ exception: jitCgFailedException at memory location 0x00c3e400..
First-chance exception at 0x69b93d31 in MATLAB.exe: 0xC0000005: Access violation writing location 0x00000001.
> throw_segv_longjmp_seh_filter()
throw_segv_longjmp_seh_filter(): invoking THROW_SEGV_LONGJMP SEH filter
> mnUnhandledWindowsExceptionFilter()
MATLAB.exe has triggered a breakpoint

Answer 1

尝试从Python方面解决问题：Python是一种很棒的粘合语言，我建议你让Python运行你的Matlab和C程序。 Python有：

numpy的
PyLab
Matplotlib
IPython

因此，对于几乎任何现有的Matlab模块，该组合都是一个很好的选择。

Answer 2

使用matlab 2014b，可以直接在m代码中添加call python functions。

在MATLAB中嵌入Python

2 个答案: