PGAEvaluate1

Usage

Overview

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string has been changed (e.g., by crossover or mutation) or the user has explicitly signaled the string's evaluation is out-of-date by a call to PGASetEvaluationUpToDateFlag().

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);