[kepler-dev] [kepler-users] Invoking MATLAB interface

[Daniel Crawl]

Hi Peter,

The ptmatlab.dll included with Kepler 1.0 will not work with
Matlab 2009a. I've compiled one that does:

https://code.kepler-project.org/code/kepler/trunk/modules/common/lib/ptmatlab.dll

If you get this error:

matlabEngine.open(null) : can't find Matlab engine. Try
starting Matlab by hand as an application to verify that
Matlab is set up properly and the license is correct.


Then try running "matlab /regserver". On windows, the Matlab
C API communicates with Matlab via COM, and apparently the
COM interface is not automatically registered when Matlab is
installed!


  --dan


Peter Li wrote:
> Hi,
>
> Yes, both PATH environment variables are right and I can run Matlab from the
> command prompt.
>
> The first error window that pops up is a javaw.exe - Entry Point Not Found
> error that says "The procedure entry point mxSetName could not be located in
> the dynamic link library libmx.dll." which is then followed by the message I
> posted above. This message only occurs the first time I attempt to run the
> workflow. Subsequent tries goes straight the error message posted above.
>
> I'm running Matlab 7.8.0.347 R2009a version.
>
> Thanks,
>
> Peter
>
>   
>> On Tue, Jun 30, 2009 at 1:55 PM, Daniel Crawl <crawl at sdsc.edu> wrote:
>>
>>     
>>> Hi Peter,
>>>
>>> On windows, make sure the PATH environment variable
>>> includes both the Matlab bin and win32 directories. (Other
>>> things to check: make sure those directories exist, and
>>> see if you can run "matlab" from a cmd prompt).
>>>
>>> I've noticed that when the Matlab actor can't find Matlab,
>>> the exception it throws changes. The first one usually
>>> describes the actual problem, but subsequent exceptions
>>> are NoClassDefFoundError like the one in your email. Do
>>> you get a different exception the first time you try to
>>> run the workflow? If so, could you please send it to me?
>>>
>>> Also, which version of Matlab do you have?
>>>
>>> Thanks,
>>>
>>>  --dan
>>>
>>>
>>> Peter Li wrote:
>>>
>>>       
>>>> Hi all,
>>>>
>>>> I'm trying to use the MATLAB actor, but I get this error message when I
>>>> try
>>>> to run it. I'm running on windows XP and I've set the environment
>>>> variables
>>>> to include the MATLAB bin and its win32 folder. It says that it cant find
>>>> the ptmatlab shared library but I can see ptmatlab.dll file in the
>>>> Kepler-1.0.0\lib folder. I'm fairly new at Kepler, so please excuse me if
>>>> this is a dumb question.
>>>>
>>>> ptolemy.kernel.util.IllegalActionException: There was a problem invoking
>>>> the
>>>> Ptolemy II Matlab interface.
>>>> The interface has been tested under Windows and Linux.
>>>> The interface requires that Matlab be installed on the local machine and
>>>> that the ptmatlab shared library available.
>>>> Refer to $PTII/ptolemy/matlab/makefile for more information.
>>>>  in .<Unnamed Object>.MatlabExpression
>>>> Because:
>>>> java.lang.NoClassDefFoundError
>>>>    at ptolemy.matlab.Expression.preinitialize(Expression.java:205)
>>>>    at ptolemy.actor.Director.preinitialize(Director.java:865)
>>>>    at
>>>>
>>>> ptolemy.domains.sdf.kernel.SDFDirector.preinitialize(SDFDirector.java:527)
>>>>    at
>>>> ptolemy.actor.CompositeActor.preinitialize(CompositeActor.java:1103)
>>>>    at
>>>> ptolemy.actor.Manager.preinitializeAndResolveTypes(Manager.java:913)
>>>>    at ptolemy.actor.Manager.initialize(Manager.java:578)
>>>>    at ptolemy.actor.Manager.execute(Manager.java:321)
>>>>    at ptolemy.actor.Manager.run(Manager.java:1071)
>>>>    at ptolemy.actor.Manager$3.run(Manager.java:1112)
>>>> Caused by: java.lang.NoClassDefFoundError
>>>>    at ptolemy.matlab.Expression.preinitialize(Expression.java:202)
>>>>    ... 8 more
>>>> Caused by: java.lang.NoClassDefFoundError
>>>>    at ptolemy.matlab.Expression.preinitialize(Expression.java:202)
>>>>    at ptolemy.actor.Director.preinitialize(Director.java:865)
>>>>    at
>>>>
>>>> ptolemy.domains.sdf.kernel.SDFDirector.preinitialize(SDFDirector.java:527)
>>>>    at
>>>> ptolemy.actor.CompositeActor.preinitialize(CompositeActor.java:1103)
>>>>    at
>>>> ptolemy.actor.Manager.preinitializeAndResolveTypes(Manager.java:913)
>>>>    at ptolemy.actor.Manager.initialize(Manager.java:578)
>>>>    at ptolemy.actor.Manager.execute(Manager.java:321)
>>>>    at ptolemy.actor.Manager.run(Manager.java:1071)
>>>>    at ptolemy.actor.Manager$3.run(Manager.java:1112)
>>>>
>>>>  ------------------------------------------------------------------------
>>>>
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>>>> Kepler-users mailing list
>>>> Kepler-users at kepler-project.org
>>>> http://mercury.nceas.ucsb.edu/kepler/mailman/listinfo/kepler-users
>>>>
>>>>
>>>>         
>>>       
>
>   
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