Query: pgaevaluate
OS: debian
Section: 1
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
PGAEvaluate(1) PGAPack PGAEvaluate(1)NAMEPGAEvaluate - Calls a user-specified function to return an evaluation of each string in the population.DESCRIPTIONThe user-specified function is only called if the string has been changed (e.g., by crossover or mutation) or the user has explicitly sig- naled the string's evaluation is out-of-date by a call to PGASetEvaluationUpToDateFlag().INPUT PARAMETERSctx - context variable pop - symbolic constant of the population to be evaluated f - a pointer to a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 communicatorOUTPUT PARAMETERSnoneSYNOPSIS#include "pgapack.h" void PGAEvaluate(ctx, pop, , comm) PGAContext *ctx int pop double (*f)(PGAContext *, int, int) MPI_Comm commLOCATIONparallel.cEXAMPLEExample: 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); 05/01/95 PGAEvaluate(1)