BTW - It should be possible to invoke Kepler without a display. This
has been done in the past and is covered elsewhere
However, when I need to invoke Ptolemy with a display on a headless
machine, I use Xvfb, which is a virtual framebuffer.
By starting up Xvfb and then setting the DISPLAY, I'm able to run 350+
demos and export the results to HTML.
1. Install Xvfb on your machine
yum install Xvfb
2. Start up the display
Xvfb :1 -screen 0 1024x768x24 &
export DISPLAY=localhost:1.0
I've done this under Linux and Solaris.
_Christopher
On 4/26/12 1:43 PM, Ramón Pérez Pérez wrote:
Hi,
I think that it is possible that there are new modules to download for
your version, and for this reason the execution (too in command line)
tries to launch the X11. We changed the configuration.xml in
kepler_2.2/module-manager-2.2.0/resources/configurations as follow:
<?xml version="1.0"?>
<config>
<releaseLocation>
https://code.kepler-project.org/code/kepler/releases/released/
</releaseLocation>
<check-for-patches>false</check-for-patches>
</config>
Best,
Ramón
--
Ramón Pérez Pérez
Centro Andaluz de Medio Ambiente, Universidad de Granada - Junta de
Andalucía
Avda. del Mediterráneo S/N. 18006. Granada. España
email:[email protected] <mailto:[email protected]>
Blog:http://rpperez.blogspot.com <http://rpperez.blogspot.com/>
Fax: +34 958137246
Tel: +34 958241000 (ext. 31202)
El 26/04/2012, a las 21:22, Matt Jones escribió:
Albert --
Did you try running the command line shell with the -nogui and -runwf
arguments? Something like:
kepler.sh -nogui -runkar /home/mbj/myworkflow.kar
The location of kepler.sh will vary by platform, but if you get it on
your path, then you should be good to go. More details are here:
https://kepler-project.org/developers/reference/executing-kepler-from-the-command-line
Matt
On Thu, Apr 26, 2012 at 10:27 AM, Albert Vilà Picas
<[email protected] <mailto:[email protected]>> wrote:
Hi all,
We're trying to execute Kepler from command line on a Server
without -X fordwarding.
Running kar workflows without display actors we have
a ptolemy.kernel.util.IllegalActionException:
[null] Because:
[null] Could not initialize class sun.awt.X11GraphicsEnvironment
[null] at ptolemy.actor.Manager.execute(Manager.java:485)
[null] at ptolemy.actor.Manager.run(Manager.java:1159)
[null] at
ptolemy.actor.Manager$PtolemyRunThread.run(Manager.java:1689)
[null] Caused by: java.lang.NoClassDefFoundError: Could not
initialize class sun.awt.X11GraphicsEnvironment
1. Then, there is a special Kepler for a Server-side?
2. Can we disable the ptolemy java gui without JAVAFLAGS or
the -Djava.awt.headless=true for headless gui exec?
3. Maybe only redirecting the X11 DISPLAY to a null or fake xhost
we can solve it?
Thanks again,
--albert
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--
Christopher Brooks, PMP University of California
CHESS Executive Director US Mail: 337 Cory Hall
Programmer/Analyst CHESS/Ptolemy/Trust Berkeley, CA 94720-1774
ph: 510.643.9841 (Office: 545Q Cory)
home: (F-Tu) 707.665.0131 cell: 707.332.0670
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