Discussion Forum

Posted: 1 decade ago 3 ago 2011, 11:06 GMT-4

Hi Michael, I have the same issue. Could you find a solution? I already contacted Comsol support, but I am not able to create a reproducable example. If you have an example file where the progress window always does not show up, this could help to solve the issue. I use Comsol 4.2.0.187 together with Matlab R2010a on a WinXP platform. Sunny regards, Stefan

Posted: 1 decade ago 12 ago 2011, 07:27 GMT-4

HI everyone, Yes, I do have the same problem. I am using exacty the same matlab and comsol version as you Stefan. I would also be interseted if you can find a solution Best Regards Vincent

Posted: 1 decade ago 12 ago 2011, 09:44 GMT-4

Hi, I might have find a way to make the progress bar appear more often. Even if Matlab was started using the 'COMSOL with Matlab' application, I start with the comand line mphstart before creating my model with 'model = ModelUtil.create('Model');' It should not be required since a server connection already exist but in my case the progress bar appeared all the time so far. But I haven't tested it for a long time so I cannot tell if it totally solve the problem. Let me know if it has helped you, so I will know if I only had chance or if I have to keep looking for a solution. Best regards Vincent

Posted: 1 decade ago 12 set 2011, 06:46 GMT-4

Hi guys, has anyone in the meantime solved the issue or able to report it to Comsol? I probably got a reproducible case, so before contacting Comsol I'd like to know how's going with you. BTW: I tried Vincent workaround but, at least in my case, does not work. Best, J

Posted: 1 decade ago 12 set 2011, 07:00 GMT-4

Hi Jacopo, I can now confirm that my workaround does not work all the time. In my case it actually works better but nevertheless the progress bar does not appear in every situation. However I was not able to find out when it works and when not. Let me know if the comsol support can help you on that one. Regards Vincent

Posted: 1 decade ago 12 set 2011, 07:02 GMT-4

Ok, perfect. I'm actually waiting for another support reply, still on Comsol w/ Matlab, and as soon as it is solved I'll submit this one. I'll keep you updated... J

Posted: 1 decade ago 12 set 2011, 07:02 GMT-4

Ok, perfect. I'm actually waiting for another support reply, still on Comsol w/ Matlab, and as soon as it is solved I'll submit this one. I'll keep you updated... J

Posted: 1 decade ago 12 set 2011, 08:09 GMT-4

Here is what the support says: Dear Stefan, Thank you for your detailed answer. I have used your M-file in order to reproduce this behavior. But I can see the progress bar each time I solve a problem, even if I do certain changes and/or restart MATLAB. I use MATLAB 2011a and Windows Vista. Note that this kind of unexpected behavior can in several cases depend on the version you are using. In order to fully support this case, we ask you to upgrade your MATLAB version to one of the supported ones. Version 2010a is not officially supported by COMSOL 4.2. I would recommend you to try version 2011a instead (or 2010b). Check with your colleague the MATLAB version he is using. If this problem appears in the supported versions of MATLAB, please let us know. Best regards, Pablo Vallejos COMSOL AB, Sweden ----- Original Message ----- > Hi Pablo, > > thank you for your answer. I already attached an example file to my > last eMail. Today I tried this file again and the progress window has > been shown correctly. Later I used the same file and the window was > missing again. > > I thought the issue might have to do something with the way I start Matlab > or with the java classes I use for GUI programming, but this does not > seem to be the origin of the issue. > > I tried to build a reproducible example, but I could not. > Sometimes the progress window is shown and sometimes not. > I attach the example file of my last email again. > > I fully understand that it is hard to correct an error that is not > reproducible... > > I use Comsol 4.2.0.187 together with Matlab R2010a on a WinXP platform. > > - Do you have any other issues with the LiveLink for MATLAB? > No. > > Please run the attached file in Matlab several times and see If the > progress windows always pops up. If it works well, please start Matlab > again and try it again a few times. > I guess this is all you can do for me to understand the issue. > > If I can find out more about it, I will give you an update. > > At least I am not the only person having this issue, because there is > already a forum entry: > http://www.comsol.com/community/forums/general/thread/20922/ > > I am going to answer it and ask him for more details, too. > > Sunny regards, > > Stefan

Posted: 1 decade ago 12 set 2011, 08:11 GMT-4

Ok, I'm gonna write them since I'm using both Matlab R2010b and R2011a and I can't see the progress bar... J

Posted: 1 decade ago 12 set 2011, 08:18 GMT-4

In some cases the progress bar window is kind of "hidden". You have to minimize all other windows on the desktop to see the progress bar. (The progress bar does not have an extra item in the task bar.) However, even when minimizing all other windows I can not always see a progress bar with R2010a.

Posted: 1 decade ago 15 set 2011, 12:44 GMT-4

Hi, Sadly I have had no luck in solving this issue. I can somewhat get arround it by having task manager up, this allows me in some way to tell whether the server has stalled, in which case I can close it and my program automatically restarts the process. At that point I cross my fingers and hope I get the progress bar :). There almost needs to be a Bool on whether the progress bar is visibile, that way checking it and the ability to call it up seperately would be nice. Regards Mike F

Posted: 1 decade ago 13 ott 2011, 14:26 GMT-4

Hello, Since I have the same problem I would be interested if there has been a solution to this problem. Thanks, Robert

Posted: 1 decade ago 15 ott 2011, 18:59 GMT-4

Hi Robert, in my case (running on Windows 7 and Mac) the task bar appears almost any time I call it. The only issue is that is covered by all the other windows; is there, but is hidden. Try to, if not already done, to have just the m-file window on the desktop and also have it really small, run the code and probably you would be able to see the task bar. Perhaps you have already tried so this post will not be of much help. There is the new version now, v4.2a, perhaps in this version the task bar works smoothly. J

Posted: 1 decade ago 27 nov 2011, 05:14 GMT-5

I am having the same issue of the progress window not showing up most of the time. In my case I am using comsol 4.2a with matlab 2011a on a 64 bit Linux machine. Even when I set ModelUtil.showProgress(true); The progress bar does not show up most of the time. It looks from the previous posts that there is no solution to this problem yet.

Posted: 1 decade ago 23 set 2012, 04:21 GMT-4

Well, we're seeing this as well with COMSOL43. In the bowels of the .comsol directory, in a file called '.log', the following error is being thrown by COMSOL: org.eclipse.swt.SWTException: Invalid thread access at org.eclipse.swt.SWT.error(SWT.java:4282) at org.eclipse.swt.SWT.error(SWT.java:4197) at org.eclipse.swt.SWT.error(SWT.java:4168) at org.eclipse.swt.widgets.Display.error(Display.java:1258) at org.eclipse.swt.widgets.Display.checkDevice(Display.java:764) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3743) at com.comsol.guimph.progress.ServerProgressHandler$a.run(Unknown Source) It looks like COMSOL is having a threadng issue with the progress window accessing the screen.