The configuration file has undergone a few changes due to the new problems added. In this section we mark the differents modifications.

Changes Produced in Main Parameters:

        BASE_PORTS is a JGDS v3.5 parameter which is used to calculate the port number of every host. For example: if BASE_PORTS=6100 and we have 4 islands, the port of island 1 is 6101, the port of island 2 is 6102, and so on. This method has a problem because many hosts can only read from a specific port number. So, in JGDS v4.0 we leave this parameter out and the port number of each host is introduced.

                PORT_1=6103
                PORT_2=5998
                PORT_3=6090
                PORT_4=6120
                           ...... (so many as islands)

 

Changes produced in Problem Parameters:

PROBLEM_TYPE: Here, the new problem values are added.

Value	Problem
1	Logic Clauses Satisfaction (SAT)
2	Radio Network Design (RND)
3	Radio Network Design (RND2) (original problem)
4	Terminal Assignment (TA)
5	Error Correcting Code (ECC)

FITNESS_FUNCTION: We added the function types of the problem implemented.

	Problem
Value	SAT	RND	RND2	TA	ECC
1	Original Function	Original Function	Original Function	Original Funtion	Original Funtion
2	Gottlieb_Voss_F1	Average use			Optimized Function
3	Gottlieb_Voss_F2	Average + Deviation use
4	Gottlieb_Voss_F3	Penalized
5	Gottlieb_Voss_F4

SOLUTION_FITNESS: The value depends on the problem parameters.

Problem	Fitness usual value
SAT	1.0
RND	118.99
RND2	204.08
TA	1000.0
ECC	0.0674157

NUM_GENES and GENE_LENGTH:

Problem	Num_Genes	Gene_Length
SAT	250 (number of variables)	1
RND	100 (number of transmitter)	13
RND2	149 (number of transmitter)	1
TA	100 (number of terminals)	5 ó 6
ECC	24 (number of words)	12

     
TA Parameters:

NUM_TERM = Number of terminals.

NUM_CONC = Number of concentrators. Value lower or equal than 32.

CONC_CAP = Concentrator capacity.

ECC Parameters:

WORD_CARDINAL = Number of words (M). Lower or equal than 31.

WORD_LENGTH = Word length (n).

Changes produced in algorithm parameters:

        One useful parameter added in JGDS v4.0 is ALG_STOP. This parameter defines the problem stopping condition.

Value	Description
1	The algorithm only stops when it gets the SOLUTION_FITNESS value.
2	The algorithm only stops when it gets the NUM_MAX_EVAL value.
3	The algorithm stops when it gets the SOLUTION_FITNESS or the NUM_MAX_EVAL value.