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factorize default performance related settings to a single file

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included after the architecture specific files such that they
can be adapted by each platform.
This commit is contained in:
Gael Guennebaud 2010-03-03 18:47:58 +01:00
parent 112c550b4a
commit 7dd81aad74
5 changed files with 74 additions and 35 deletions
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4
Eigen/Core
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@ -214,9 +214,7 @@ struct Dense {};
#include "src/Core/arch/NEON/PacketMath.h" #include "src/Core/arch/NEON/PacketMath.h"
#endif #endif
#ifndef EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD #include "src/Core/arch/Default/Settings.h"
#define EIGEN_CACHEFRIENDLY_PRODUCT_THRESHOLD 8
#endif
#include "src/Core/Functors.h" #include "src/Core/Functors.h"
#include "src/Core/DenseBase.h" #include "src/Core/DenseBase.h"

65
Eigen/src/Core/arch/Default/Settings.h Normal file
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@ -0,0 +1,65 @@
// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2008-2010 Gael Guennebaud <g.gael@free.fr>
// Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com>
//
// Eigen is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// Alternatively, you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License and a copy of the GNU General Public License along with
// Eigen. If not, see <http://www.gnu.org/licenses/>.
/* 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 size in Bytes of blocks fitting in CPU cache.
* The current value is set to generate blocks of 256x256 for float
*
* Typically for a single-threaded application you would set that to 25% of the size of your CPU caches in bytes
*/
#ifndef EIGEN_TUNE_FOR_CPU_CACHE_SIZE
#define EIGEN_TUNE_FOR_CPU_CACHE_SIZE (sizeof(float)*256*256)
#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
#endif // EIGEN_DEFAULT_SETTINGS_H

24
Eigen/src/Core/util/Macros.h
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@ -78,30 +78,6 @@
#define EIGEN_DEFAULT_MATRIX_STORAGE_ORDER_OPTION ColMajor #define EIGEN_DEFAULT_MATRIX_STORAGE_ORDER_OPTION ColMajor
#endif #endif
/** 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 maximal size in Bytes of blocks fitting in CPU cache.
* The current value is set to generate blocks of 256x256 for float
*
* Typically for a single-threaded application you would set that to 25% of the size of your CPU caches in bytes
*/
#ifndef EIGEN_TUNE_FOR_CPU_CACHE_SIZE
#define EIGEN_TUNE_FOR_CPU_CACHE_SIZE (sizeof(float)*256*256)
#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
/** Allows to disable some optimizations which might affect the accuracy of the result. /** Allows to disable some optimizations which might affect the accuracy of the result.
* Such optimization are enabled by default, and set EIGEN_FAST_MATH to 0 to disable them. * Such optimization are enabled by default, and set EIGEN_FAST_MATH to 0 to disable them.
* They currently include: * They currently include: