> I understood 
> that I have to start a broker and several agents, but I couldn't start
> the agents. Which command line parameters are relevant, which are
> optional? 

Agents need to know at least the IP and socket of the broker. The other options need to be consistent with the broker.

> When starting the broker I provided some arguments that 
> specify a random DisCSP, but where are they going, what is the CSP that
> is generated from these parameters? 

It will be created by the broker and stored in a directory on local machine (then sent to all other agents).

> Is there a way to let the broker 
> start the required agents to solve the specified problem on "localhost"?

No

> An example input file (which defines a DisCSP) and the required command
> line commands to solve this problem would be very helpful for me.

You do not need examples. The broker knows to generate random CSPs.


> However, where is the solution displayed? 

The solution is stored in the same directory as the problems, in files called Sxxx, where xxx stands for the number id of the problem.

> Furthermore, for  
> evaluation I'd need to be able to store and re-load problems. Is there
> any way to do this? 

Yes, there is an option for the broker, such that it does not generate new problem. If you choose that option, it will reuse existing problems. Launch the Broker with "-h", and it will tell you which option it is 

> I didn't find a central place where the global 
> problem is available for storage (although there must be one as the
> broker is producing the entire problem, isn't it?)
The broker stores each problem in a local directory (called either "test" or "problem", or something like this)

>
> Why does Mely only run with java 1.2.2 and no newer version? We have
> observed that with the hotspot-compiler (starting at jdk1.3) Java became
> much faster for things like CSP, it's worthwhile using it...

Some of the java packages I used were modified immediately in the next version of java. I used those packages so extensively, that I do not believe I will ever have the needed time to modify that code for portability to newer versions.