Java Grid Computing / News: Recent posts

POVRay support now works fine with POVRay 3.6 for Windows;
Written WebStart support for JCGrid Mandel;
Written the first version of JCGrid Mandel. Mandelbrot set rendering done over
public grid computing. You can share your CPU time for fast exploring the
Mandelbrot set;
Fixed a problem related to POVRay fragment images under Windows;
Added a developpers section to the docs;
Added more information about the grid in the administration;
Added compressed communication channel;
VFS can be now disabled (mainly for security).

Introduced animation support. You can now split rendering of fragments of a
single frame and/or complete frames (better to split complete frame in order to
avoid preprocessing overhead);
POVRay 3.6 has fixed the "Failed to execute" problem;
New POVRay client implementation;
POVRay worker now use stdout instead of temporary file for the rendered image;
Written session name autogeneration;
New confguration file format;
New confguration GUI dialogs;
New confguration class design;
The "Failed to execute" problem under RedHat 9.0 happens because
of a coredump when the DISPLAY env. variable is not defined;
Adam Wells reports JCGrid works fine under MacOS X 10.3.4.

It looks like POVRay give a coredump under Linux if the env. variable DISPLAY is not defined even if I use the "-D" option. Try to define the DISPLAY variable on the Linux box (i.e. export DISPLAY=192.168.1.6:0) and then to run the worker scripts. This has always fixed the problem for me (and as doublececk if I unset DISPLAY I start to get the "Failed to execute" error).

I'm still investingating exactly why it happens only with JCGrid and how to fix this problem.

It looks like something goes wrong while uploading files to SourceForge ftp site. I fixed 0.03 tgz. Now they should work fine. Thanks to Stephen Parkinson for reporting the problem.

JCGridWorker can now run multiple workers (useful on SMP); Investigated the "Failed to execute" problem under RedHat 9.0; Grid statistics can be accessed by using the GUI; Grid statistics are now available; Grid administration mechanism is now available; New class design in the server package; The GUI client for POVRay now supports partial image rendering; Written a GUI client for POVRay.

Written installation instruction for Windows;
Will Lloyd-Davies has written the scripts for using JCGrid with POVRay under Windows;
Docs are now included in binary releases.

The very first release of JCGrid is available.