Add options to control min./max. data transfer amount.

[loba.git] / options.cpp

diff --git a/options.cpp b/options.cpp
index 9ea0a72927ed0c6d8cac6315c7bf92d53e107569..9f7ea5c0a6b3a8cdc512c6623d99495d4c8c880f 100644 (file)
--- a/options.cpp
+++ b/options.cpp
@@ -48,6 +48,8 @@ namespace opt {
     std::string loba_algo("simple");
     bool bookkeeping = false;
     double min_lb_iter_duration = 1.0;          // fixme: find better defaults
+    double min_transfer_amount = 0.0;
+    double max_transfer_amount = 0.0;
 
     // Application parameters
     cost_func comp_cost("1e9, 0");              // fixme: find better defaults
@@ -66,10 +68,14 @@ namespace opt {
     loba_algorithms_type loba_algorithms;
     loba_algorithms_type::loba_algorithms_type()
     {
-        NOL_INSERT("fairstrategy", "balance with fair strategy", loba_fairstrategy);
-        NOL_INSERT("makhoul", "balance with Makhoul's PhD algorithm", loba_makhoul);
-        NOL_INSERT("none", "no load-balancing (for testing only)", process);
-        NOL_INSERT("simple", "balance with least loaded neighbor", loba_simple);
+        NOL_INSERT("fairstrategy", "balance with fair strategy",
+                   loba_fairstrategy);
+        NOL_INSERT("makhoul", "balance with Makhoul's PhD algorithm",
+                   loba_makhoul);
+        NOL_INSERT("none", "no load-balancing (for testing only)",
+                   process);
+        NOL_INSERT("simple", "balance with least loaded neighbor",
+                   loba_simple);
     }
 
     topologies_type topologies;
@@ -197,7 +203,7 @@ bool opt::parse_args(int* argc, char* argv[])
     int c;
     opterr = 0;
     while ((c = getopt(*argc, argv,
-                       "a:bc:C:d:D:ehi:I:l:L:N:s:S:t:T:vV")) != -1) {
+                       "a:bc:C:d:D:ehi:I:l:L:m:M:N:s:S:t:T:vV")) != -1) {
         switch (c) {
         case 'a':
             opt::loba_algo = optarg;
@@ -219,7 +225,8 @@ bool opt::parse_args(int* argc, char* argv[])
             try {
                 opt::comp_cost = cost_func(optarg);
             } catch (...) {
-                XBT_ERROR("invalid argument for option '-%c' -- \"%s\"", c, optarg);
+                XBT_ERROR("invalid argument for option '-%c' -- \"%s\"",
+                          c, optarg);
                 result = false;
             }
             break;
@@ -227,7 +234,8 @@ bool opt::parse_args(int* argc, char* argv[])
             try {
                 opt::comm_cost = cost_func(optarg);
             } catch (...) {
-                XBT_ERROR("invalid argument for option '-%c' -- \"%s\"", c, optarg);
+                XBT_ERROR("invalid argument for option '-%c' -- \"%s\"",
+                          c, optarg);
                 result = false;
             }
             break;
@@ -249,6 +257,12 @@ bool opt::parse_args(int* argc, char* argv[])
         case 'L':
             PARSE_ARG(opt::auto_depl::load);
             break;
+        case 'm':
+            PARSE_ARG(opt::min_transfer_amount);
+            break;
+        case 'M':
+            PARSE_ARG(opt::max_transfer_amount);
+            break;
         case 'N':
             PARSE_ARG(opt::auto_depl::nhosts);
             break;
@@ -302,6 +316,12 @@ bool opt::parse_args(int* argc, char* argv[])
         result = false;
     }
 
+    if (opt::max_transfer_amount &&
+        opt::max_transfer_amount < opt::min_transfer_amount) {
+        XBT_ERROR("max. data transfer amount < min. data transfer amount");
+        result = false;
+    }
+
     return result;
 }
 
@@ -327,10 +347,14 @@ 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("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 comp. iterations", "%g", min_comp_iter_duration);
+    DESCR("minimum data transfer amount", "%g", min_transfer_amount);
+    DESCR("maximum data transfer amount", "%g", max_transfer_amount);
+    DESCR("minimum duration between comp. iterations", "%g",
+          min_comp_iter_duration);
     DESCR("computations start after lb. iter", "%u", comp_iter_delay);
     DESCR("computations start after time", "%g", comp_time_delay);
     DESCR("maximum number of lb. iterations", "%s",
@@ -410,6 +434,12 @@ void opt::usage()
     std::clog << o("-C [aN,...]a0")
               << "polynomial factors for communication cost"
               << " [" << opt::comm_cost.to_string() << "]\n";
+    std::clog << o("-m value")
+              << "minimum data transfer amount"
+              << " [" << opt::min_transfer_amount << "]\n";
+    std::clog << o("-M value")
+              << "maximum data transfer amount (0 for no limit)"
+              << " [" << opt::max_transfer_amount << "]\n";
     std::clog << o("-S value")
               << "minimum duration between comp. iterations"
               << " [" << opt::min_comp_iter_duration << "]\n";