Improve error message.

[loba.git] / options.cpp

diff --git a/options.cpp b/options.cpp
index a943339eb6051560af6eba481ae1dbdb858cce4e..b440f7ce76be2f908dc47fdc2a99d5a007819851 100644 (file)
--- a/options.cpp
+++ b/options.cpp
@@ -367,7 +367,9 @@ bool opt::parse_args(int* argc, char* argv[])
 
     if (opt::max_transfer_amount &&
         opt::max_transfer_amount < opt::min_transfer_amount) {
-        XBT_ERROR("max. data transfer amount < min. data transfer amount");
+        XBT_ERROR("max. data transfer amount (%g) <"
+                  " min. data transfer amount (%g)",
+                  opt::max_transfer_amount, opt::min_transfer_amount);
         result = false;
     }
 
@@ -398,8 +400,8 @@ void opt::print()
             DESCR("- initial load (total)", "%g", auto_depl::load);
         DESCR("- random initial load distribution", "%s",
               h.on_off(auto_depl::random_distribution));
-        DESCR("- random seed", "%s",
-              h.val_or_string(auto_depl::random_seed, "time based"));
+        DESCR("- random seed", "%s", // NOTE: cannot be 0 here anymore
+              h.val_or_string(auto_depl::random_seed, "constant random", 1UL));
     } else {
         DESCR("deployment file", "\"%s\"", deployment_file.c_str());
     }
@@ -483,8 +485,11 @@ void opt::usage()
               << " [" << opt_helper::on_off(opt::auto_depl::random_distribution)
               << "]\n";
     std::clog << o("-r value")
-              << "random seed, 0 for a seed based on current date"
+              << "random seed for initial load distribution, or 0, or 1"
               << " [" << opt::auto_depl::random_seed << "]\n";
+    if (opt::help_requested > 1)
+        std::clog << o("") << "- use 0 for a seed based on current date\n"
+                  << o("") << "- use 1 for a constant random\n";
 
     std::clog << "\nLoad balancing algorithm:\n";
     std::clog << o("-a name") << "load balancing algorithm"