本文整理汇总了C++中GAPopulation::userData方法的典型用法代码示例。如果您正苦于以下问题：C++ GAPopulation::userData方法的具体用法？C++ GAPopulation::userData怎么用？C++ GAPopulation::userData使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GAPopulation的用法示例。
在下文中一共展示了GAPopulation::userData方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: while
// This population evaluator is the administrator for the parallelization.
// It looks around to see when slaves are available to evaluate a genome. As
// soon as a slave is available and a genome needs to be evaluated, this
// routine sends it off. When a slave is finished, it posts a message to
// say so and this routine gets the message and grabs the results from the
// slave that posted the message.
// An index of -1 means that the slave has no assignment. The first int in
// the stream of stuff is always the ID of the slave (0-nslaves) that is
// sending the information. After that it is either nothing (the slave just
// reported that it is ready for another genome) or it is a float (the score
// of the genome that was assigned to the slave).
void
PopulationEvaluator(GAPopulation& pop) {
PVMDataPtr data = (PVMDataPtr)pop.userData();
int* index = new int [data->nreq];
int done = 0, outstanding = 0, next = 0;
int bufid, status, bytes, msgtag, tid, who;
while(!done) {
// If we have a genome that needs to be evaluated and one of the slaves is
// ready to evaluate it, send the genome to the slave.
if(next < pop.size() && (bufid=pvm_nrecv(-1, MSG_READY)) != 0) {
if(bufid > 0) {
pvm_bufinfo(bufid, &bytes, &msgtag, &tid);
status = SendGenomeData(pop.individual(next), tid);
if(status >= 0) {
if((who = id2idx(tid, *data)) >= 0) {
index[who] = next; next++;
outstanding++;
}
else {
cerr << "PopEval: bogus tid mapping: " << tid << "\n";
}
}
else {
cerr << "PopEval: error sending data to: " << tid;
cerr << " error code is: " << status << "\n";
}
}
else {
cerr << "PopEval: error from pvm_nrecv: " << bufid << "\n";
}
}
// If we have any genomes waiting for their evaluation and any slaves have
// posted a message stating that they have a finished score ready for us, get
// the score from the slave and stuff it into the appropriate genome.
if(outstanding > 0 && (bufid=pvm_nrecv(-1, MSG_GENOME_SCORE)) != 0) {
if(bufid > 0) {
pvm_bufinfo(bufid, &bytes, &msgtag, &tid);
if((who = id2idx(tid, *data)) >= 0) {
if(index[who] >= 0) {
status = RecvGenomeScore(pop.individual(index[who]));
if(status >= 0) {
index[who] = -1;
outstanding--;
}
else {
cerr << "PopEval: error receiving score from: " << tid;
cerr << " error code is: " << status << "\n";
}
}
else {
cerr << "PopEval: index conflict from tid " << tid << "\n";
}
}
else {
cerr << "PopEval: bogus tid mapping: " << tid << "\n";
}
}
else {
cerr << "PopEval: error from pvm_nrecv: " << bufid << "\n";
}
}
if(next == pop.size() && outstanding == 0) done = 1;
if(next > pop.size()) {
cerr << "bogus value for next: " << next;
cerr << " popsize is: " << pop.size() << "\n";
}
}
delete [] index;
}