Discussion Forum

Dear NG,

last week I had a similar problem, which I still did not solve but I found out some more details.

When running Comsol (v4.1) on my local Linux machine and connecting it to a remote Comsol Windows server (v4.1, too), I can run my model from a Matlab script without any problems on that server.

Saving the model .mph file that was run on the server on my local machine using model.save() works fine as well.
BUT: When I want to save the results along e.g. a cut line on my local machine, using model.result.export('data1').run does not work.
There is an error message:
??? Java exception occurred:
Exception:
java.lang.RuntimeException: Made 5 attempts creating a temp. file. Giving
up!
(rethrown as com.comsol.util.exceptions.FlException)
Messages:
Made 5 attempts creating a temp. file. Giving up!


The following work-around works:
After saving the .mph file I have to disconnect from the server using ModelUtil.disconnect.
Then I have to connect to the localhost, using ModelUtil.connect('localhost',2036);
And load the model, using model=ModelUtil.load(...);
When I now try to run model.result.export('data1').run, there won't be an error message and the file will be created correctly.

What could cause the error, when I directly try to run the export after having run the model on the server and being still connected to the remote server machine?
My work-around fails, when the file size of the .mph file gets to big to handle for my local machine.
That's why I'd like to run the exporting from the server machine as well.

Any ideas?
Thanks a lot!
Best regards,
Juergen