
struct gfd_control(commit_distance, adaptive_distance, threads)

   Structure for passing low-level control parameters to gecode search-engines.

Fields
   commit_distance     the commit recomputation distance (integer)(member c_d of Gecode::Search::Options)
   adaptive_distance   the adaptive recomputation distance (integer)(member a_d of Gecode::Search::Options)
   threads             number of threads to use in search (integer or float)(member threads of Gecode::Search::Options)

Type
   library(gfd)

Description
  This structure is used in search/6 predicate, which interface to gecode's
  search-engines. The structure is used by the control option to pass values
  for low-level parameters that control the behaviour gecode search-engine.
  See the gecode documentation for more details explanation of the
  parameters. For threads, if >= 1, this specifies number of threads
  to use in search, but for < 1, this specify the number of threads in
  relation to the number of processors on the machine, see the gecode
  documentation for more detail. 


