X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/loba.git/blobdiff_plain/97a4b4dbf628a627e3c2d5689be89265f56074df..e05a6b2176b2111c65ff5464a4b25099f9fdfb12:/options.cpp?ds=inline diff --git a/options.cpp b/options.cpp index a8178a9..fd9b8f7 100644 --- a/options.cpp +++ b/options.cpp @@ -1,6 +1,7 @@ #include #include #include +#include #include // getopt #include @@ -13,6 +14,12 @@ XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(main); 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; @@ -40,7 +47,8 @@ namespace opt { // 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 + unsigned comp_maxiter = 10; // fixme: find better defaults + unsigned lb_maxiter = comp_maxiter; // fixme: find better defaults bool exit_on_close = false; // Named parameters lists @@ -48,14 +56,14 @@ namespace opt { loba_algorithms_type::loba_algorithms_type() { NOL_INSERT("fairstrategy", "balance with fair strategy", loba_fairstrategy); - NOL_INSERT("none", "no load-balancing (for testing)", process); + NOL_INSERT("none", "no load-balancing (for testing only)", process); NOL_INSERT("simple", "balance with least loaded neighbor", loba_simple); } topologies_type topologies; topologies_type::topologies_type() { - NOL_INSERT("btree", "binary tree topologym intiial load at root", + NOL_INSERT("btree", "binary tree topology, initial load at root", deployment_btree); NOL_INSERT("clique", "all connected topology", deployment_clique); NOL_INSERT("hcube", "hypercube topology", deployment_hcube); @@ -69,24 +77,107 @@ 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) { - int result = 1; + return b ? "on" : "off"; +} + +const char* opt_helper::descr(const char* str) +{ + const int descr_width = 35; + 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: + ERROR2("unknownw %s -- %s", descr, name.c_str()); + break; + case 1: + name = candidates.top(); + candidates.pop(); + result = true; + DEBUG2("infered %s -- %s", descr, name.c_str()); + break; + default: + ERROR2("ambiguous %s -- %s", descr, name.c_str()); + while (!candidates.empty()) { + ERROR1(" candidates are -- %s", candidates.top().c_str()); + candidates.pop(); + } + break; + } + } + return result; +} + +bool opt::parse_args(int* argc, char* argv[]) +{ + 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: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; @@ -104,7 +195,12 @@ 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::comp_maxiter; + break; + case 'I': + std::istringstream(optarg) >> opt::lb_maxiter; + ERROR0("option -I not implemented yet"); + result = false; break; case 'l': std::istringstream(optarg) >> opt::log_rate; @@ -115,13 +211,14 @@ int opt::parse_args(int* argc, char* argv[]) case 'N': std::istringstream(optarg) >> opt::auto_depl::nhosts; break; + case 's': + std::istringstream(optarg) >> communicator::send_count_before_flush; + 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 @@ -132,7 +229,7 @@ int opt::parse_args(int* argc, char* argv[]) break; case '?': ERROR1("invalid option -- '%c'", optopt); - result = 0; + result = false; break; } } @@ -144,7 +241,7 @@ int opt::parse_args(int* argc, char* argv[]) opt::platform_file = argv[optind++]; } else { ERROR0("missing parameter -- "); - result = 0; + result = false; } if (optind < *argc) { opt::deployment_file = argv[optind++]; @@ -153,61 +250,46 @@ int opt::parse_args(int* argc, char* argv[]) while (optind < *argc) { ERROR1("unused parameter -- \"%s\"", argv[optind++]); - result = 0; + 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() { + opt_helper h; + +#define DESCR(description, format, value) \ + INFO2("| %s: " format, h.descr(description), value) + 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) { + DESCR("log rate", "%s", h.val_or_string(log_rate, "disabled")); + DESCR("platform file", "\"%s\"", platform_file.c_str()); + if (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")); + 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)); + 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("maximum number of comp. iterations", "%s", + h.val_or_string(comp_maxiter, "infinity")); + DESCR("maximum number of lb. iterations", "%s", + h.val_or_string(lb_maxiter, "infinity")); + DESCR("exit on close", "%s", h.on_off(exit_on_close)); + DESCR("send count before flush", "%d", + communicator::send_count_before_flush); INFO0("`----"); + +#undef DESCR } void opt::usage() @@ -274,8 +356,11 @@ void opt::usage() << " (" << opt::comm_cost.to_string() << ")\n"; std::clog << o("-e") << "exit on reception of \"close\" message\n"; std::clog << o("-i value") - << "maximum number of iterations, 0 for infinity" - << " (" << opt::maxiter << ")\n"; + << "maximum number of comp. iterations, 0 for infinity" + << " (" << opt::comp_maxiter << ")\n"; + std::clog << o("-I value") + << "maximum number of lb. iterations, 0 for infinity" + << " (" << opt::lb_maxiter << ")\n"; if (opt::help_requested < 3) return; @@ -291,6 +376,11 @@ void opt::usage() << " proc : messages from base process class\n" << " loba : messages from load-balancer\n"; + std::clog << "\nMiscellaneous low-level parameters\n"; + std::clog << o("-s count") + << "check for finished comm. every `count' send operation" + << " (" << communicator::send_count_before_flush << ")\n"; + #undef so_list #undef so #undef o