Overview
Comment:The solution vector (_ui) is no longer re-zeroed each step.
Retaining the previous value appears to give dramatically better performance.

Messages to the console are now buffered through clog instead of using cerr.

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SHA3-256: 9e8edaf7e03f21b5b4f948f0ca19a8537b78d21afd13d1c593a0d7301e67ec3c
User & Date: geraint@users.sourceforge.net on 2002-07-15 12:50:51
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Context
2002-07-15
17:00:36
Writes simulation time to shell when solution converges. check-in: ca5791ec93 user: geraint@users.sourceforge.net tags: origin/master, trunk
12:50:51
The solution vector (_ui) is no longer re-zeroed each step.
Retaining the previous value appears to give dramatically better performance.

Messages to the console are now buffered through clog instead of using cerr. check-in: 9e8edaf7e0 user: geraint@users.sourceforge.net tags: origin/master, trunk

2002-07-14
19:02:51
Improved handling of new plot windows - multiplot and other options affect the new window instead of always controlling the first. check-in: 1fcf787df7 user: geraint@users.sourceforge.net tags: origin/master, trunk
Changes
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Modified mttroot/mtt/lib/cc/mtt_AlgebraicSolver.cc from [ab49594ff5] to [021b3b02c0].

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{
  if (_nyz > 0)
    {
      _x = x;
      _uui.insert(u,0);
      _t = t;
      _par = par;
      _ui = ColumnVector(_nyz,0.0);
      Solve();
      _uui.insert(_ui,_nu);
    }
  else
    {
      _uui = u;
    }
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Modified mttroot/mtt/lib/cc/mtt_Hybrd_Solver.cc from [478c947ac8] to [9ffbf825ef].

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      break;
    default:
      unknown_errors++;
      break;
    }
  if (1 != info)
    {
      std::cerr
      std::clog
	<< " time " << _t << " \t"
	<< " converge (" << convergences << ") "
	<< " limit (" << limit_errors << ")"
	<< " (max error = " << std::abs (eval(_ui).max()) << ")"
	<< " other (" << input_errors + user_errors + progress_errors + unknown_errors << ") "
	<< std::endl;
    }
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Modified mttroot/mtt/lib/cc/mtt_Solver.cc from [effe0746c4] to [bc6c28056d].

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		     const int nyz)
{
  _np  = npar; 
  _nu  = nu;
  _nx  = nx;
  _ny  = ny;
  _nyz = nyz;
  _ui  = ColumnVector (_nyz,0.0);
  _uui = ColumnVector (_nu+_nyz);
};

MTT: Model Transformation Tools
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