Add single-row cut generator

onerow/benchmark/scripts/gap.rb

@@ -0,0 +1,45 @@
+#!/usr/bin/env ruby
+require 'yaml'
+yaml = YAML::load(File.open(ARGV[0]))
+
+int_format = "%d,"
+number_format = "%.2f,"
+string_format = "%s,"
+
+presolve_opt = yaml['sol_value'][0] 
+mir_opt = yaml['sol_value'][1]
+wedges_opt = yaml['sol_value'][2]
+mip_opt = yaml['mip_value']
+
+if presolve_opt == mip_opt then
+    print (string_format * 6 + "\n") % (["---"] * 6)
+else
+
+    orig_gap = (mip_opt-presolve_opt) / mip_opt.abs
+    mip_perf  = (mir_opt-presolve_opt) / (mip_opt-presolve_opt)
+    w_perf    = (wedges_opt-presolve_opt) / (mip_opt-presolve_opt)
+
+    n_cuts_mir = yaml['n_added_cuts']['depth'][0]
+    n_cuts_w   = yaml['n_added_cuts']['depth'].values.reduce(:+) - n_cuts_mir
+
+    print int_format % n_cuts_mir
+    print int_format % n_cuts_w
+    print number_format % (100 * orig_gap)
+    print number_format % (100 * mip_perf)
+    print number_format % (100 * w_perf)
+    
+    if  presolve_opt == wedges_opt
+        print (string_format * 2) % (["---"] * 2)
+    else
+        mir_contrib = (mir_opt-presolve_opt) / (wedges_opt-presolve_opt)
+        w_contrib   = (wedges_opt-mir_opt) / (wedges_opt-presolve_opt)
+
+        print number_format % (100 * mir_contrib)
+        print number_format % (100 * w_contrib)
+    end
+
+    w_improv = (wedges_opt-mir_opt) / (mip_opt-mir_opt)
+
+    # improvement
+    print (number_format + "\n") % (100 * w_improv.abs)
+end

onerow/benchmark/scripts/speed.rb

@@ -0,0 +1,15 @@
+#!/usr/bin/env ruby
+require 'yaml'
+yaml = YAML::load(File.open(ARGV[0]))
+
+int_format = "%d,"
+number_format = "%.2f,"
+string_format = "%s,"
+blank = "---,"
+
+print int_format % yaml['n_generated_cuts']['round'][1] rescue print blank
+print int_format % yaml['n_generated_cuts']['round'][2] rescue print blank
+print number_format % (yaml['cut_speed']['round_1'] * 1000) rescue print blank
+print number_format % (yaml['cut_speed']['round_2'] * 1000) rescue print blank
+print number_format % yaml['trivial_lifting']['average_m'] rescue print blank
+print "\n"