text: // This file is part of Eigen, a lightweight C++ template library
  // for linear algebra.
  //
  // Copyright (C) 2008-2010 Gael Guennebaud <gael.guennebaud@inria.fr>
  // Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com>
  //
  // This Source Code Form is subject to the terms of the Mozilla
  // Public License v. 2.0. If a copy of the MPL was not distributed
  // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
  
  
  /* All the parameters defined in this file can be specialized in the
   * architecture specific files, and/or by the user.
   * More to come... */
  
  #ifndef EIGEN_DEFAULT_SETTINGS_H
  #define EIGEN_DEFAULT_SETTINGS_H
  
  /** Defines the maximal loop size to enable meta unrolling of loops.
    * Note that the value here is expressed in Eigen's own notion of "number of FLOPS",
    * it does not correspond to the number of iterations or the number of instructions
    */
  #ifndef EIGEN_UNROLLING_LIMIT
  #define EIGEN_UNROLLING_LIMIT 100
  #endif
  
  /** Defines the threshold between a "small" and a "large" matrix.
    * This threshold is mainly used to select the proper product implementation.
    */
  #ifndef EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD
  #define EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD 8
  #endif
  
  /** Defines the maximal width of the blocks used in the triangular product and solver
    * for vectors (level 2 blas xTRMV and xTRSV). The default is 8.
    */
  #ifndef EIGEN_TUNE_TRIANGULAR_PANEL_WIDTH
  #define EIGEN_TUNE_TRIANGULAR_PANEL_WIDTH 8
  #endif
  
  
  /** Defines the default number of registers available for that architecture.
    * Currently it must be 8 or 16. Other values will fail.
    */
  #ifndef EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS
  #define EIGEN_ARCH_DEFAULT_NUMBER_OF_REGISTERS 8
  #endif
  
  #endif // EIGEN_DEFAULT_SETTINGS_H
  