Move min_lb_iter_duration in load-balancing parameters.

[loba.git] / options.cpp

diff --git a/options.cpp b/options.cpp
index f3e2be399b7ea33bb35db9ac94ec8cd6e2e181af..107b1804344804456951be5d7131611ae45124c6 100644 (file)
--- a/options.cpp
+++ b/options.cpp
@@ -47,13 +47,12 @@ namespace opt {
     // Load balancing algorithm
     std::string loba_algo("simple");
     bool bookkeeping = false;
+    double min_lb_iter_duration = 1.0;          // fixme: find better defaults
 
     // Application parameters
-    // 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;
+    cost_func comp_cost("1e9, 0");              // fixme: find better defaults
+    cost_func comm_cost("1e6, 0");              // fixme: find better defaults
+    double min_comp_iter_duration = 1.0;        // fixme: find better defaults
 
     // Parameters for the end of the simulation
     unsigned lb_maxiter = 0;
@@ -93,6 +92,8 @@ namespace {
     // local helper class
     class opt_helper {
     public:
+        template <typename T>
+        static bool parse_arg(char opt, const char *arg, T& val);
         static const char* on_off(bool b);
         const char* descr(const char* str);
         template <typename T>
@@ -109,6 +110,16 @@ namespace {
 
 } // namespace
 
+template <typename T>
+bool opt_helper::parse_arg(char opt, const char *arg, T& val)
+{
+    std::istringstream str(arg);
+    bool result = (str >> val) && str.eof();
+    if (!result)
+        XBT_ERROR("invalid argument for option '-%c' -- \"%s\"", opt, arg);
+    return result;
+}
+
 const char* opt_helper::on_off(bool b)
 {
     return b ? "on" : "off";
@@ -178,6 +189,8 @@ bool opt::parse_args(int* argc, char* argv[])
 
     opt::program_name = argv[0];
     opt::program_name.erase(0, 1 + opt::program_name.find_last_of('/'));
+
+#define PARSE_ARG(x) result = opt_helper::parse_arg(c, optarg, (x)) && result
     
     int c;
     opterr = 0;
@@ -200,34 +213,44 @@ bool opt::parse_args(int* argc, char* argv[])
             opt::help_requested++;
             break;
         case 'c':
-            opt::comp_cost = cost_func(optarg);
+            try {
+                opt::comp_cost = cost_func(optarg);
+            } catch (...) {
+                XBT_ERROR("invalid argument for option '-%c' -- \"%s\"", c, optarg);
+                result = false;
+            }
             break;
         case 'C':
-            opt::comm_cost = cost_func(optarg);
+            try {
+                opt::comm_cost = cost_func(optarg);
+            } catch (...) {
+                XBT_ERROR("invalid argument for option '-%c' -- \"%s\"", c, optarg);
+                result = false;
+            }
             break;
         case 'i':
-            std::istringstream(optarg) >> opt::lb_maxiter;
+            PARSE_ARG(opt::lb_maxiter);
             break;
         case 'I':
-            std::istringstream(optarg) >> opt::comp_maxiter;
+            PARSE_ARG(opt::comp_maxiter);
             break;
         case 'l':
-            std::istringstream(optarg) >> opt::log_rate;
+            PARSE_ARG(opt::log_rate);
             break;
         case 'L':
-            std::istringstream(optarg) >> opt::auto_depl::load;
+            PARSE_ARG(opt::auto_depl::load);
             break;
         case 'N':
-            std::istringstream(optarg) >> opt::auto_depl::nhosts;
+            PARSE_ARG(opt::auto_depl::nhosts);
             break;
         case 's':
-            std::istringstream(optarg) >> opt::min_lb_iter_duration;
+            PARSE_ARG(opt::min_lb_iter_duration);
             break;
         case 'S':
-            std::istringstream(optarg) >> opt::min_comp_iter_duration;
+            PARSE_ARG(opt::min_comp_iter_duration);
             break;
         case 't':
-            std::istringstream(optarg) >> opt::time_limit;
+            PARSE_ARG(opt::time_limit);
             break;
         case 'T':
             opt::auto_depl::topology = optarg;
@@ -249,6 +272,8 @@ bool opt::parse_args(int* argc, char* argv[])
         }
     }
 
+#undef PARSE_ARG
+
     if (opt::version_requested || opt::help_requested)
         return 1;
 
@@ -293,12 +318,10 @@ void opt::print()
     }
     DESCR("load balancing algorithm", "%s", loba_algo.c_str());
     DESCR("bookkeeping", "%s", h.on_off(bookkeeping));
+    DESCR("minimum duration between lb. iterations", "%g", min_lb_iter_duration);
     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("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",
@@ -365,6 +388,9 @@ void opt::usage()
         so_list(opt::loba_algorithms);
     std::clog << o("-b") << "toggle bookkeeping (\"virtual load\")"
               << " [" << opt_helper::on_off(opt::bookkeeping) << "]\n";
+    std::clog << o("-s value")
+              << "minimum duration between lb. iterations"
+              << " [" << opt::min_lb_iter_duration << "]\n";
 
     std::clog << "\nApplication parameters\n";
     std::clog << o("-c [aN,...]a0")
@@ -373,9 +399,6 @@ void opt::usage()
     std::clog << o("-C [aN,...]a0")
               << "polynomial factors for communication cost"
               << " [" << 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";