X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/5289609afe7ec92e6341f9219e1bfaf55df7f907..b8e22cc98fbf0967c03b2582ff1d18018e743d82:/options.cpp diff --git a/options.cpp b/options.cpp index cf9d7b7..f3e2be3 100644 --- a/options.cpp +++ b/options.cpp @@ -1,25 +1,36 @@ #include #include #include +#include #include // getopt #include XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main); +#include "deployment.h" +#include "process.h" #include "loba_simple.h" #include "loba_fairstrategy.h" +#include "loba_makhoul.h" +#include "misc.h" #include "options.h" namespace opt { + // Constants + + // A sum of loads if considered null if it is less than + // load_ratio_threshold percent of the sum of loads at init. + const double load_ratio_threshold = 1e-4; + // Global options std::string program_name; int help_requested = 0; bool version_requested = false; // Simulation parameters - unsigned log_rate = 1; + int log_rate = 1; // Platform and deployment std::string platform_file; @@ -38,16 +49,24 @@ namespace opt { bool bookkeeping = false; // Application parameters - cost_func comp_cost("1e9, 0"); // fixme: find better defaults - cost_func comm_cost("1, 0"); // fixme: find better defaults - unsigned maxiter = 10; // fixme: find better defaults - bool exit_on_close = false; + // fixme: find better defaults + cost_func comp_cost("1e9, 0"); + cost_func comm_cost("1e6, 0"); + double min_lb_iter_duration = 1.0; + double min_comp_iter_duration = 1.0; + + // Parameters for the end of the simulation + unsigned lb_maxiter = 0; + unsigned comp_maxiter = 0; + double time_limit = 0; + bool exit_on_close = true; // Named parameters lists loba_algorithms_type loba_algorithms; loba_algorithms_type::loba_algorithms_type() { NOL_INSERT("fairstrategy", "balance with fair strategy", loba_fairstrategy); + NOL_INSERT("makhoul", "balance with Makhoul's PhD algorithm", loba_makhoul); NOL_INSERT("none", "no load-balancing (for testing only)", process); NOL_INSERT("simple", "balance with least loaded neighbor", loba_simple); } @@ -69,30 +88,113 @@ namespace opt { } // namespace opt -int opt::parse_args(int* argc, char* argv[]) +namespace { + + // local helper class + class opt_helper { + public: + static const char* on_off(bool b); + const char* descr(const char* str); + template + const char* val_or_string(const T& val, const char* str, + const T& deflt = 0); + template + static bool nol_find_prefix(const T& nol, const char* descr, + std::string& name); + + private: + std::string descr_str; + std::string val_or_string_str; + }; + +} // namespace + +const char* opt_helper::on_off(bool b) +{ + return b ? "on" : "off"; +} + +const char* opt_helper::descr(const char* str) +{ + const int descr_width = 40; + std::string& res = descr_str; + res = str; + res.resize(descr_width, '.'); + return res.c_str(); +} + +template +const char* opt_helper::val_or_string(const T& val, const char* str, + const T& deflt) +{ + std::string& res = val_or_string_str; + if (val != deflt) { + std::ostringstream oss; + oss << val; + res = oss.str(); + } else { + res = str; + } + return res.c_str(); +} + +template +bool opt_helper::nol_find_prefix(const T& nol, const char* descr, + std::string& name) +{ + bool result = nol.exists(name); + if (!result) { + std::stack candidates; + for (typename T::iterator it = nol.begin() ; it != nol.end() ; ++it) { + const std::string& fullname = nol.get_name(it); + if (fullname.compare(0, name.length(), name) == 0) + candidates.push(fullname); + } + switch (candidates.size()) { + case 0: + XBT_ERROR("unknownw %s -- %s", descr, name.c_str()); + break; + case 1: + name = candidates.top(); + candidates.pop(); + result = true; + XBT_DEBUG("infered %s -- %s", descr, name.c_str()); + break; + default: + XBT_ERROR("ambiguous %s -- %s", descr, name.c_str()); + while (!candidates.empty()) { + XBT_ERROR(" candidates are -- %s", candidates.top().c_str()); + candidates.pop(); + } + break; + } + } + return result; +} + +bool opt::parse_args(int* argc, char* argv[]) { - int result = 1; + bool result = true; opt::program_name = argv[0]; opt::program_name.erase(0, 1 + opt::program_name.find_last_of('/')); int c; opterr = 0; - while ((c = getopt(*argc, argv, "a:bc:C:ehi:l:L:N:T:vV")) != -1) { + while ((c = getopt(*argc, argv, "a:bc:C:ehi:I:l:L:N:s:S:t:T:vV")) != -1) { switch (c) { case 'a': opt::loba_algo = optarg; - if (!opt::loba_algorithms.exists(opt::loba_algo)) { - ERROR1("unknownw load balancing algorithm -- %s", - opt::loba_algo.c_str()); - result = 0; - } + result = opt_helper::nol_find_prefix(opt::loba_algorithms, + "load balancing algorithm", + opt::loba_algo) + && result; break; case 'b': - opt::bookkeeping = true; + opt::bookkeeping = !opt::bookkeeping; break; case 'e': - opt::exit_on_close = true; + opt::exit_on_close = !opt::exit_on_close; break; case 'h': opt::help_requested++; @@ -104,7 +206,10 @@ int opt::parse_args(int* argc, char* argv[]) opt::comm_cost = cost_func(optarg); break; case 'i': - std::istringstream(optarg) >> opt::maxiter; + std::istringstream(optarg) >> opt::lb_maxiter; + break; + case 'I': + std::istringstream(optarg) >> opt::comp_maxiter; break; case 'l': std::istringstream(optarg) >> opt::log_rate; @@ -115,13 +220,20 @@ int opt::parse_args(int* argc, char* argv[]) case 'N': std::istringstream(optarg) >> opt::auto_depl::nhosts; break; + case 's': + std::istringstream(optarg) >> opt::min_lb_iter_duration; + break; + case 'S': + std::istringstream(optarg) >> opt::min_comp_iter_duration; + break; + case 't': + std::istringstream(optarg) >> opt::time_limit; + break; case 'T': - opt::auto_depl::topology = optarg; - if (!opt::topologies.exists(opt::auto_depl::topology)) { - ERROR1("unknownw topology -- %s", - opt::auto_depl::topology.c_str()); - result = 0; - } + opt::auto_depl::topology = optarg; + result = opt_helper::nol_find_prefix(opt::topologies, "topology", + opt::auto_depl::topology) + && result; break; case 'v': // nothing to do: this option is checked at the very @@ -131,8 +243,8 @@ int opt::parse_args(int* argc, char* argv[]) opt::version_requested = true; break; case '?': - ERROR1("invalid option -- '%c'", optopt); - result = 0; + XBT_ERROR("invalid option -- '%c'", optopt); + result = false; break; } } @@ -143,8 +255,8 @@ int opt::parse_args(int* argc, char* argv[]) if (optind < *argc) { opt::platform_file = argv[optind++]; } else { - ERROR0("missing parameter -- "); - result = 0; + XBT_ERROR("missing parameter -- "); + result = false; } if (optind < *argc) { opt::deployment_file = argv[optind++]; @@ -152,62 +264,50 @@ int opt::parse_args(int* argc, char* argv[]) opt::auto_depl::enabled = opt::deployment_file.empty(); while (optind < *argc) { - ERROR1("unused parameter -- \"%s\"", argv[optind++]); - result = 0; + XBT_ERROR("unused parameter -- \"%s\"", argv[optind++]); + result = false; } return result; } -namespace { - - // some helper functions for opt::print() - - const char* on_off(bool b) - { - return b ? "on" : "off"; - } - - template - const char* val_or_string(const T& val, const char* str, const T& deflt = 0) - { - static std::string res; - if (val != deflt) { - std::ostringstream oss; - oss << val; - res = oss.str(); - } else { - res = str; - } - return res.c_str(); - } - -} // namespace - void opt::print() { - INFO0(",----[ Simulation parameters ]"); - INFO1("| log rate.....................: %s", - val_or_string(opt::log_rate, "disabled")); - INFO1("| platform file................: \"%s\"", opt::platform_file.c_str()); - if (opt::auto_depl::enabled) { - INFO0("| automatic deployment enabled"); - INFO1("| - topology...................: %s", opt::auto_depl::topology.c_str()); - INFO1("| - number of hosts............: %s", - val_or_string(opt::auto_depl::nhosts, "auto")); - INFO1("| - initial load...............: %s", - val_or_string(opt::auto_depl::load, "auto")); + opt_helper h; + +#define DESCR(description, format, value) \ + XBT_INFO("| %s: " format, h.descr(description), value) + + XBT_INFO(",----[ Simulation parameters ]"); + DESCR("log rate", "%s", h.val_or_string(log_rate, "disabled")); + DESCR("platform file", "\"%s\"", platform_file.c_str()); + if (auto_depl::enabled) { + XBT_INFO("| automatic deployment enabled"); + DESCR("- topology", "%s", auto_depl::topology.c_str()); + DESCR("- number of hosts", "%s", h.val_or_string(auto_depl::nhosts, + "auto")); + DESCR("- initial load", "%s", h.val_or_string(auto_depl::load, + "auto")); } else { - INFO1("| deployment file..............: \"%s\"", opt::deployment_file.c_str()); + DESCR("deployment file", "\"%s\"", deployment_file.c_str()); } - INFO1("| load balancing algorithm.....: %s", opt::loba_algo.c_str()); - INFO1("| bookkeeping..................: %s", on_off(opt::bookkeeping)); - INFO1("| computation cost factors.....: [%s]", opt::comp_cost.to_string().c_str()); - INFO1("| communication cost factors...: [%s]", opt::comm_cost.to_string().c_str()); - INFO1("| maximum number of iterations.: %s", - val_or_string(opt::maxiter, "infinity")); - INFO1("| exit on close................: %s", on_off(opt::exit_on_close)); - INFO0("`----"); + DESCR("load balancing algorithm", "%s", loba_algo.c_str()); + DESCR("bookkeeping", "%s", h.on_off(bookkeeping)); + DESCR("computation cost factors", "[%s]", comp_cost.to_string().c_str()); + DESCR("communication cost factors", "[%s]", comm_cost.to_string().c_str()); + DESCR("minimum duration between lb. iterations", "%g", + min_lb_iter_duration); + DESCR("minimum duration between comp. iterations", "%g", + min_comp_iter_duration); + DESCR("maximum number of lb. iterations", "%s", + h.val_or_string(lb_maxiter, "infinity")); + DESCR("maximum number of comp. iterations", "%s", + h.val_or_string(comp_maxiter, "infinity")); + DESCR("time limit", "%s", h.val_or_string(time_limit, "infinity")); + DESCR("exit on close", "%s", h.on_off(exit_on_close)); + XBT_INFO("`----"); + +#undef DESCR } void opt::usage() @@ -240,42 +340,58 @@ void opt::usage() std::clog << "\nSimulation parameters\n"; std::clog << o("-l value") - << "print current load every n-th iterations, 0 to disable" - << " (" << opt::log_rate << ")\n"; + << "print current load every n lb iterations, 0 to disable" + << " [" << opt::log_rate << "]\n"; std::clog << o("-v") << "verbose: do not override the default logging parameters\n"; std::clog << "\nAutomatic deployment options\n"; std::clog << o("-T name") << "enable automatic deployment with selected topology" - << " (" << opt::auto_depl::topology << ")\n"; + << " [" << opt::auto_depl::topology << "]\n"; if (opt::help_requested > 1) so_list(opt::topologies); std::clog << o("-L value") << "total load with auto deployment, 0 for number of hosts" - << " (" << opt::auto_depl::load << ")\n"; + << " [" << opt::auto_depl::load << "]\n"; std::clog << o("-N value") - << "number of hosts to use with auto deployment," - << " 0 for max. (" << opt::auto_depl::nhosts << ")\n"; + << "number of hosts to use with auto deployment, 0 for max." + << " [" << opt::auto_depl::nhosts << "]\n"; std::clog << "\nLoad balancing algorithm\n"; std::clog << o("-a name") << "load balancing algorithm" - << " (" << opt::loba_algo << ")\n"; + << " [" << opt::loba_algo << "]\n"; if (opt::help_requested > 1) so_list(opt::loba_algorithms); - std::clog << o("-b") << "enable bookkeeping\n"; + std::clog << o("-b") << "toggle bookkeeping (\"virtual load\")" + << " [" << opt_helper::on_off(opt::bookkeeping) << "]\n"; std::clog << "\nApplication parameters\n"; - std::clog << o("-c [fn,...]f0") + std::clog << o("-c [aN,...]a0") << "polynomial factors for computation cost" - << " (" << opt::comp_cost.to_string() << ")\n"; - std::clog << o("-C [fn,...]f0") + << " [" << opt::comp_cost.to_string() << "]\n"; + std::clog << o("-C [aN,...]a0") << "polynomial factors for communication cost" - << " (" << opt::comm_cost.to_string() << ")\n"; - std::clog << o("-e") << "exit on reception of \"close\" message\n"; + << " [" << opt::comm_cost.to_string() << "]\n"; + std::clog << o("-s value") + << "minimum duration between lb. iterations" + << " [" << opt::min_lb_iter_duration << "]\n"; + std::clog << o("-S value") + << "minimum duration between comp. iterations" + << " [" << opt::min_comp_iter_duration << "]\n"; + + std::clog << "\nParameters for the end of the simulation\n"; std::clog << o("-i value") - << "maximum number of iterations, 0 for infinity" - << " (" << opt::maxiter << ")\n"; + << "maximum number of lb. iterations, 0 for infinity" + << " [" << opt::lb_maxiter << "]\n"; + std::clog << o("-I value") + << "maximum number of comp. iterations, 0 for infinity" + << " [" << opt::comp_maxiter << "]\n"; + std::clog << o("-t value") + << "time limit (simulated time), 0 for infinity" + << " [" << opt::time_limit << "]\n"; + std::clog << o("-e") << "toggle exit on reception of \"close\" message" + << " [" << opt_helper::on_off(opt::exit_on_close) << "]\n"; if (opt::help_requested < 3) return; @@ -289,7 +405,10 @@ void opt::usage() << " depl : messages from auto deployment (inherited from main)\n" << " comm : messages from asynchronous pipes\n" << " proc : messages from base process class\n" - << " loba : messages from load-balancer\n"; + << " loba : messages from load-balancer\n" + << " thrd : messages from thread wrapper class\n"; + + // std::clog << "\nMiscellaneous low-level parameters\n"; #undef so_list #undef so