PGAEvaluate3
Calls a user-specified function to return an evaluation of each string in the population. the user-specified function is only called if the string has been changed (e.g., by crossover or mutation) or the user has explicitly signaled the string's evaluation is out-of-date by a call to pgasetevaluationuptodateflag().
Usage
PGAContext *ctx
int pop
MPI_Comm comm
Input parameters
- ctx
-
- context variable
- pop
-
- symbolic constant of the population to be evaluated
- f
-
- a pointer to a function to evaluate a string. This function will be called once for each string in population pop that requires evaluation. This function must return a double (the evaluation function value) and must fit the prototype double f(PGAContext *c, int p, int pop);
- comm
-
- an MPI communicator
Output parameters
- none
Location
parallel.c
Examples
Example:
Evaluate all strings in population PGA_NEWPOP using the user-defined
evaluation function Energy.
double Energy(PGAContext *ctx, int p, int pop) {
:
};
PGAContext *ctx;
:
PGAEvaluate(ctx, PGA_NEWPOP, Energy, MPI_COMM_WORLD);
Releases
8 releases since Debian 1.1 (Buzz); the text changed 1 time.