Add option "-s" for controlling the minimum duration between iterations.

[loba.git] / options.cpp

diff --git a/options.cpp b/options.cpp
index 6a6a8872f5dbb4a646d9518603d55ea01741f629..1a3db2c2995d0e0c268d4b1fd70c6efca02e24c2 100644 (file)
--- a/options.cpp
+++ b/options.cpp
@@ -50,6 +50,7 @@ namespace opt {
     // fixme: find better defaults
     cost_func comp_cost("1e9, 0");
     cost_func comm_cost("1, 0");
+    double min_iter_duration = 1.0;
 
     // Parameters for the end of the simulation
     // fixme: find better defaults
@@ -111,7 +112,7 @@ const char* opt_helper::on_off(bool b)
 
 const char* opt_helper::descr(const char* str)
 {
-    const int descr_width = 35;
+    const int descr_width = 40;
     std::string& res = descr_str;
     res = str;
     res.resize(descr_width, '.');
@@ -176,7 +177,7 @@ bool opt::parse_args(int* argc, char* argv[])
     
     int c;
     opterr = 0;
-    while ((c = getopt(*argc, argv, "a:bc:C:ehi:I: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;
@@ -217,6 +218,9 @@ bool opt::parse_args(int* argc, char* argv[])
         case 'N':
             std::istringstream(optarg) >> opt::auto_depl::nhosts;
             break;
+        case 's':
+            std::istringstream(optarg) >> opt::min_iter_duration;
+            break;
         case 'T':
             opt::auto_depl::topology = optarg;
             result = opt_helper::nol_find_prefix(opt::topologies, "topology",
@@ -283,6 +287,7 @@ void opt::print()
     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 iterations", "%g", min_iter_duration);
     DESCR("maximum number of comp. iterations", "%s",
           h.val_or_string(comp_maxiter, "infinity"));
     DESCR("maximum number of lb. iterations", "%s",
@@ -355,6 +360,9 @@ void opt::usage()
     std::clog << o("-C [fn,...]f0")
               << "polynomial factors for communication cost"
               << " (" << opt::comm_cost.to_string() << ")\n";
+    std::clog << o("-s value")
+              << "minimum duration between iterations"
+              << " (" << opt::min_iter_duration << ")\n";
 
     std::clog << "\nParameters for the end of the simulation\n";
     std::clog << o("-i value")