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在MATLAB中嵌入Python

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我试图将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 . 我说无论如何,因为我已经尝试了许多方法来加载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)开关的命令行编译的简单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.

Output from Visual Studios DEBUGGER

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

2 回答

  • 0

    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

    • PyLab

    • Matplotlib

    • IPython

    因此,该组合是几乎任何现有Matlab模块的良好替代方案 .

  • 4

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

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