Out of memory

[Marcus Vinicius Pereira Pessoa]

Hi all,

I have an application  in which I use a modification from Merelo's Breeder. It 
has an initial 
population of 100 individuals and run for 100 generations. After porting it to 
swarm-1.1 it 
started to give an out of memory error after the 44th generation:

        *** event raised for error: OutOfMemory
        *** function: dalloc(), file: Zone.m, line: 28
        > No more memory available from the system.  Value of sbrk: 0x8230f20
        *** execution terminating due to error
        Abort (core dumped)

The evaluation function is itself a swarm application and is called via 
evalFunc and is 
finished via EvalObsSwarm, as shown below:

        // Evaluation function.

        void evalFunc( id<Chromosome> a ) {

         EvaluationObserverSwarm * observerSwarm;

         observerSwarm = [EvaluationObserverSwarm create: globalZone];
         [observerSwarm buildObjects: a];
        [observerSwarm buildActions];
        [observerSwarm activateIn: nil];
        [observerSwarm pplGo];
        }

        //From EvalObsSwarm.m

        - checkToStop {
          float result;

         if (([evalModelSwarm getNumberPplStillTalking] <= 0) || 
           ([[evalModelSwarm getCounter] getValue] > 10)) {

           result = [self rank:(float)[evalModelSwarm getTotalDistance]
                   withBest: BEST worst: WORST];
    
         [evalModelSwarm setFit:result];

        [getTopLevelActivity() terminate]; // Terminate the simulation.
         }
         return self;
        }

I would like to know:
1) If the way I implemented guarantee that all of the memory allocated for the 
evaluation 
application (function) is freed automatically (provided I don't have any leaks 
inside the 
application itself).

2) If the changes from swarm-1.0.3 to swarm-1.1 could have any influence in 
this case.

Thanks in advance for the help.

Vinicius.






                  ==================================
   Swarm-Support is for discussion of the technical details of the day
   to day usage of Swarm.  For list administration needs (esp.
   [un]subscribing), please send a message to <address@hidden>
   with "help" in the body of the message.
                  ==================================