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ATL and heap space [message #1129165]

Tue, 08 October 2013 10:59

Javier García

Messages: 129
Registered: April 2013

Senior Member

Hi everyone,
I've been using ATL for a few months, both regular ATL and EMFTVM, and I have been noticing that no matter what the heap space of my Eclipse is, eventually it gets full after running a few ATL transformations.
This means that Eclipse keeps going slower and slower and at some point I'm forced to restart it so that it can work smooth again, if I don't restart it by myself I will just get eventually an error due to the heap space forcing me to close Eclipse.

Is this an ATL issue? is there a way to solve it or prevent it? has someone else noticed it?

Thanks in advance,
regards,
Javier

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Re: ATL and heap space [message #1129253 is a reply to message #1129165]

Tue, 08 October 2013 12:55

Dennis Wagelaar

Messages: 589
Registered: September 2012
Location: Belgium

Senior Member

For me, it happens only with UML2 models.

Cheers,
Dennis

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Re: ATL and heap space [message #1130130 is a reply to message #1129165]

Wed, 09 October 2013 08:49

Ronan B

Messages: 273
Registered: July 2009

Senior Member

Hi,
For me his happens only if i'm writing/testing transforms which fail for some reason i.e. throw Exceptions. In our production system which has "no known fatal errors" the heap space stays consistent.
Regards,
Ronan

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Re: ATL and heap space [message #1130141 is a reply to message #1130130]

Wed, 09 October 2013 08:58

Javier García

Messages: 129
Registered: April 2013

Senior Member

I do work with UML2, is this then some kind of issue regarding ATL and UML2 transformations?

Ronan to me it happens even if my transformation works, though I do get some warnings, I don't know if that would have something to do with the issue.

Thanks for your help
regards,
Javier

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Re: ATL and heap space [message #1130374 is a reply to message #1130141]

Wed, 09 October 2013 13:50

Ronan B

Messages: 273
Registered: July 2009

Senior Member

Hi Javier,
I use both UML and Ecore and I don't see this happen. The stack always goes back to the level it was at before, even for massive long running transforms. Perhaps you are using the ATL Menu Launcher (Run Configuration)? I only use this when testing and perhaps that is why I see such issues there when the transforms fail. For production I always use the ATL Launcher API from org.eclipse.m2m.atl.core

You could try using the API or the ANT tasks and see if that helps.

Regards,
Ronan

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Re: ATL and heap space [message #1131202 is a reply to message #1130374]

Thu, 10 October 2013 09:39

Javier García

Messages: 129
Registered: April 2013

Senior Member

Hi Ronan,
you're completely right, I'm using the ATL menu launcher, is it somehow bugged when working with UML2? I have used ANT tasks in the past, I never used the API, though I guess if I have to I will but I'd rather keep things as they are.
I will run some tests with ANT tasks and see if it is still troublesome, I'll let you know what I find out.

Thanks for your help,
regards,
Javier

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Re: ATL and heap space [message #1131385 is a reply to message #1131202]

Thu, 10 October 2013 13:22

Ronan B

Messages: 273
Registered: July 2009

Senior Member

Hi,
I think ANT uses the API so they should be same. If you see a difference between the laucher and the API/ANT it would be good to file a bug.
Regards,
Ronan

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