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66 lines
2.6 KiB
C
66 lines
2.6 KiB
C
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2008-2010 Gael Guennebaud <g.gael@free.fr>
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// Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com>
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//
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// Eigen is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 3 of the License, or (at your option) any later version.
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//
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// Alternatively, you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of
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// the License, or (at your option) any later version.
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//
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// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License and a copy of the GNU General Public License along with
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// Eigen. If not, see <http://www.gnu.org/licenses/>.
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/* All the parameters defined in this file can be specialized in the
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* architecture specific files, and/or by the user.
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* More to come... */
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#ifndef EIGEN_DEFAULT_SETTINGS_H
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#define EIGEN_DEFAULT_SETTINGS_H
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/** Defines the maximal loop size to enable meta unrolling of loops.
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* Note that the value here is expressed in Eigen's own notion of "number of FLOPS",
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* it does not correspond to the number of iterations or the number of instructions
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*/
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#ifndef EIGEN_UNROLLING_LIMIT
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#define EIGEN_UNROLLING_LIMIT 100
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#endif
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/** Defines the threshold between a "small" and a "large" matrix.
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* This threshold is mainly used to select the proper product implementation.
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*/
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#ifndef EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD
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#define EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD 8
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#endif
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/** Defines the maximal size in Bytes of blocks fitting in CPU cache.
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* The current value is set to generate blocks of 256x256 for float
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*
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* Typically for a single-threaded application you would set that to 25% of the size of your CPU caches in bytes
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*/
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#ifndef EIGEN_TUNE_FOR_CPU_CACHE_SIZE
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#define EIGEN_TUNE_FOR_CPU_CACHE_SIZE (sizeof(float)*256*256)
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#endif
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/** Defines the maximal width of the blocks used in the triangular product and solver
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* for vectors (level 2 blas xTRMV and xTRSV). The default is 8.
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*/
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#ifndef EIGEN_TUNE_TRIANGULAR_PANEL_WIDTH
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#define EIGEN_TUNE_TRIANGULAR_PANEL_WIDTH 8
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#endif
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#endif // EIGEN_DEFAULT_SETTINGS_H
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