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Merge pull request #132 from maikmerten/master

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add "randomize-seed" command-line option
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David Shah 2018-11-20 10:11:09 +00:00 committed by GitHub
commit 04c5ed45bb
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1 changed files with 10 additions and 0 deletions
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10
common/command.cc
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@ -102,6 +102,7 @@ po::options_description CommandHandler::getGeneralOptions()
#endif
general.add_options()("json", po::value<std::string>(), "JSON design file to ingest");
general.add_options()("seed", po::value<int>(), "seed value for random number generator");
general.add_options()("randomize-seed,r", "randomize seed value for random number generator");
general.add_options()("slack_redist_iter", po::value<int>(), "number of iterations between slack redistribution");
general.add_options()("cstrweight", po::value<float>(), "placer weighting for relative constraint satisfaction");
general.add_options()("pack-only", "pack design only without placement or routing");
@ -138,6 +139,15 @@ void CommandHandler::setupContext(Context *ctx)
ctx->rngseed(vm["seed"].as<int>());
}
if (vm.count("randomize-seed")) {
srand(time(NULL));
int r;
do {
r = rand();
} while(r == 0);
ctx->rngseed(r);
}
if (vm.count("slack_redist_iter")) {
ctx->slack_redist_iter = vm["slack_redist_iter"].as<int>();
if (vm.count("freq") && vm["freq"].as<double>() == 0) {