Add option "-v" (verbose).

[loba.git] / options.cpp

diff --git a/options.cpp b/options.cpp
index 668aed3e044ae27c3b5df48beb392d76dd9de462..12e1b22e28156d95faa12c9a64e650508b96305b 100644 (file)
--- a/options.cpp
+++ b/options.cpp
@@ -38,7 +38,7 @@ 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 = 4;       // fixme
+    unsigned maxiter = 10;       // fixme: find better defaults
     bool exit_on_close = false;
 
     // Named parameters lists
@@ -66,15 +66,6 @@ namespace opt {
 
 } // namespace opt
 
-namespace {
-
-    const char* on_off(bool b)
-    {
-        return b ? "on" : "off";
-    }
-
-}
-
 int opt::parse_args(int* argc, char* argv[])
 {
     int result = 1;
@@ -84,7 +75,7 @@ int opt::parse_args(int* argc, char* argv[])
     
     int c;
     opterr = 0;
-    while ((c = getopt(*argc, argv, "a:bc:C:ehi:l:L:N:T:V")) != -1) {
+    while ((c = getopt(*argc, argv, "a:bc:C:ehi:l:L:N:T:vV")) != -1) {
         switch (c) {
         case 'a':
             opt::loba_algo = optarg;
@@ -129,6 +120,10 @@ int opt::parse_args(int* argc, char* argv[])
                 result = 0;
             }
             break;
+        case 'v':
+            // nothing to do: this option is checked at the very
+            // beginning of main()
+            break;
         case 'V':
             opt::version_requested = true;
             break;
@@ -161,16 +156,44 @@ int opt::parse_args(int* argc, char* argv[])
     return result;
 }
 
+namespace {
+
+    // some helper functions for opt::print()
+
+    const char* on_off(bool b)
+    {
+        return b ? "on" : "off";
+    }
+
+    template <typename T>
+    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.....................: %u",     opt::log_rate);
+    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............: %u", opt::auto_depl::nhosts);
-        INFO1("| - initial load...............: %g", opt::auto_depl::load);
+        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"));
     } else {
         INFO1("| deployment file..............: \"%s\"", opt::deployment_file.c_str());
     }
@@ -178,7 +201,8 @@ void opt::print()
     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.: %u",   opt::maxiter);
+    INFO1("| maximum number of iterations.: %s",
+          val_or_string(opt::maxiter, "infinity"));
     INFO1("| exit on close................: %s",   on_off(opt::exit_on_close));
     INFO0("`----");
 }
@@ -215,6 +239,8 @@ void opt::usage()
     std::clog << o("-l value")
               << "print current load every n-th 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")