start_computation()

void GBinhom_comp::start_computation ( )

virtual

Implements GBComputation.

Definition at line 766 of file gb-sugarless.cpp.

{
  ComputationStatusCode is_done = COMP_COMPUTING;
 
  for (;;)
    {
      if (system_interrupted())
        {
          is_done = COMP_INTERRUPTED;
          break;
        }
 
      if (need_resize)
        {
          is_done = COMP_NEED_RESIZE;
          break;
        }
 
      is_done = computation_complete();
      if (is_done != COMP_COMPUTING) break;
 
      if (error())
        {
          is_done = COMP_ERROR;
          break;
        }
      s_pair *p = spairs->remove();
      if (p == nullptr)
        {
          is_done = COMP_DONE;
          break;
        }
      int stype = s_pair_step(p);
      if (M2_gbTrace >= 3 && M2_gbTrace <= 7) switch (stype)
          {
            case SPAIR_GB:
              emit_wrapped("m");
              break;
            case SPAIR_SYZ:
              emit_wrapped("z");
              break;
            case SPAIR_ZERO:
              emit_wrapped("o");
              break;
            case SPAIR_REMOVED:
              emit_wrapped("r");
              break;
            default:
              emit_wrapped("ERROR");
              break;
          }
    }
 
  // MES: complete the reduction of the GB here
  if (M2_gbTrace >= 1) emit_line("");
  if (M2_gbTrace >= 4)
    {
      buffer o;
      o << "Number of pairs             = " << n_pairs << newline;
      o << "Number of gb elements       = " << n_gb << newline;
      o << "Number of gcd=1 pairs       = " << n_saved_gcd << newline;
      o << "Number of gcd tails=1 pairs = " << n_saved_lcm << newline;
      o << "Number of pairs computed    = " << n_computed << newline;
      emit(o.str());
    }
  set_status(is_done);
}

References COMP_COMPUTING, COMP_DONE, COMP_ERROR, COMP_INTERRUPTED, COMP_NEED_RESIZE, computation_complete(), emit(), emit_line(), emit_wrapped(), error(), M2_gbTrace, n_computed, n_gb, n_pairs, n_saved_gcd, n_saved_lcm, need_resize, newline, p, s_pair_step(), Computation::set_status(), SPAIR_GB, SPAIR_REMOVED, SPAIR_SYZ, SPAIR_ZERO, spairs, buffer::str(), and system_interrupted().