[kepler-dev] [kepler-users] SDF Firing Order

[Dan Higgins]

Just for anyone's interest, the 'org.geon.fileWrite' class in Kepler 
extends ptolemy.actor.lib.io.LineWriter to add an port that outputs the 
file path.

Dan Higgins

Edward A. Lee wrote:
> I have checked in a change to ptolemy.actor.lib.io.LineWriter
> so it now uses a FilePortParameter instead of a FileParameter.
> I checked in a MoML filter so the change should be entirely backward
> compatible.  I presume this is the class that is masquerading as
> org.geon.FileWrite.  Let me know if there are any problems.
>
> Edward
>
> At 09:38 AM 11/16/2007, you wrote:
>   
>>>> Looks to me like org.geon.FileWrite should be providing a PortParameter
>>>>         
>> rather than a parameter to specify the file name...
>>
>> That would be nice and would fix this problem.
>>
>>     
>>>> SDF uses data precedences to determine firing order.
>>>>         
>> Does that mean I should not have to worry about the order?  I seem to be
>> finding other examples where the order is wrong (i.e. not what I want).  The
>> SDF precedence mechanism doesn't seem to be capable of handling this
>> situation (with the actor as is).  In fact, it really has no way of knowing
>> which order you want.  Either could make sense.  It would probably be a
>> major change to add a feature that could be used to specify the desired
>> order in cases of ambiguity.  Or maybe there is reason not to?
>>
>> BTW in Kepler even though the description says it is org.geon.FileWrite, it
>> is really in ptolemy.actor.lib.io.
>>
>> Thanks,
>>
>>        -Ken
>>
>> -----Original Message-----
>> From: Edward A. Lee [mailto:eal at eecs.berkeley.edu] 
>> Sent: Thursday, November 15, 2007 4:36 PM
>> To: Kenneth Evans
>> Cc: Kepler Mailing List
>> Subject: Re: [kepler-users] SDF Firing Order
>>
>>
>> SDF uses data precedences to determine firing order.
>> Looks to me like org.geon.FileWrite should be providing a PortParameter
>> rather than a parameter to specify the file name...
>>
>> Edward
>>
>>
>> At 04:11 PM 11/14/2007, Kenneth Evans wrote:
>>     
>>> Hi,
>>>
>>> In SDF if two actors have their input ports connected to a relation, what
>>>       
>> determines which fires first?  Since the order may be important, is there a
>> way to insure the order you want.
>>     
>>> In particular, the attached example, which uses a File Writer actor with
>>>       
>> the fileName determined by a workspace parameter that is set by the same
>> relation that determines the File Writer input, does not work correctly
>> because the parameter is set after the File Writer fires.
>>     
>>> Maybe there is a better way to specify a variable fileName to a File Writer
>>>       
>> in the first place (in which case I would appreciate some guidance), but
>> this is not the only workflow in which I am having a firing-order problem.
>>     
>>> Thanks,
>>>
>>>        -Ken
>>>
>>>
>>> _______________________________________________
>>> Kepler-users mailing list
>>> Kepler-users at ecoinformatics.org
>>> http://mercury.nceas.ucsb.edu/ecoinformatics/mailman/listinfo/kepler-users
>>>       
>> ------------ 
>> Edward A. Lee
>> Chair of EECS and Robert S. Pepper Distinguished Professor
>> 231 Cory Hall, UC Berkeley, Berkeley, CA 94720-1770
>> phone: 510-642-0253, fax: 510-642-2845
>> eal at eecs.Berkeley.EDU,
>> http://www.eecs.berkeley.edu/Faculty/Homepages/lee.html  
>>
>>
>> _______________________________________________
>> Kepler-users mailing list
>> Kepler-users at ecoinformatics.org
>> http://mercury.nceas.ucsb.edu/ecoinformatics/mailman/listinfo/kepler-users
>>     
>
> ------------ 
> Edward A. Lee
> Chair of EECS and Robert S. Pepper Distinguished Professor
> 231 Cory Hall, UC Berkeley, Berkeley, CA 94720-1770
> phone: 510-642-0253, fax: 510-642-2845
> eal at eecs.Berkeley.EDU, http://www.eecs.berkeley.edu/Faculty/Homepages/lee.html  
>
> _______________________________________________
> Kepler-dev mailing list
> Kepler-dev at ecoinformatics.org
> http://mercury.nceas.ucsb.edu/ecoinformatics/mailman/listinfo/kepler-dev
>
>   


-- 
*******************************************************************
Dan Higgins                                  higgins at nceas.ucsb.edu
http://www.nceas.ucsb.edu/    Ph: 805-893-5127
National Center for Ecological Analysis and Synthesis (NCEAS) Marine Science Building - Room 3405
Santa Barbara, CA 93195
*******************************************************************