JFract Project

Distributed computing

Jfract let's you compute fractals and movies with networks computers avalaible. The technology used is Rmi, several rmi computers started on the network can give services to compute a part of the pictures. The jfract RMIProcessor can take a fractalComputer implementation and distribute it to the network computers.

If you are working in a laboratory with a lot of powerfull computers able to compute wery fast, the movies and pictures generation will become very fast :)))

Here is a schema to describe how it works.

To make it possible just edit the file conf/rmiDistrib.xml

<servers>
	<server url="//localhost/computer1"/>
	<server url="//localhost/computer2"/>
	<server url="//localhost/computer3"/>
</servers> 

Set here the differents url where services are avalaible.

To start a rmi computer on the network, just start the java rmiRegistry on the computer that give a jfract processor service then call runRmiService name_of_your_computer. Notes that the entire jfract home path should be installed on this computer. You can edit this file or transform it into a csh file if you are working with a kind of unix OS.

Once your computers are started edit the properties file -> preferences or conf/conf.properties.

#Sun Sep 22 14:15:12 CEST 2002
DistribRmi=false
imageDir=D\:\\project\\jfract\\images
RmiArraySize=4000
size=1126/1032
movieTempDir=
D\:\\project\\jfract\\tempMovie
movieDir=D\:\\project\\jfract\\movies
beanDir=D\:\\project\\jfract\\beansSer

The two property DistribRmi and RmiArraySize need to be setted to run the remote computerization.

RmiArraySize : the size of image buffer to send to remote computers.

DistribRmi : (true/false) tell if you want to compute with th network.