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* * make use of the EvalBeforeNestingBit and EvalBeforeAssigningBitGravatar Gael Guennebaud2008-04-05
| | | | | | | | | | | in ei_xpr_copy and operator=, respectively. * added Matrix::lazyAssign() when EvalBeforeAssigningBit must be skipped (mainly internal use only) * all expressions are now stored by const reference * added Temporary xpr: .temporary() must be called on any temporary expression not directly returned by a function (mainly internal use only) * moved all functors in the Functors.h header * added some preliminaries stuff for the explicit vectorization
* * added cwise comparisonsGravatar Gael Guennebaud2008-04-03
| | | | | | | * added "all" and "any" special redux operators * added support bool matrices * added support for cost model of STL functors via ei_functor_traits (By default ei_functor_traits query the functor member Cost)
* current state of the mess. One line fails in the tests, andGravatar Benoit Jacob2008-04-03
| | | | | | | | | | useless copies are made when evaluating nested expressions. Changes: - kill LazyBit, introduce EvalBeforeNestingBit and EvalBeforeAssigningBit - product and random don't evaluate immediately anymore - eval() always evaluates - change the value of Dynamic to some large positive value, in preparation of future simplifications
* More clever evaluation of arguments: now it occurs in earlier, in operator*,Gravatar Benoit Jacob2008-04-03
| | | | | | | | before the Product<> type is constructed. This resets template depth on each intermediate evaluation, and gives simpler code. Introducing ei_eval_if_expensive<Derived, n> which evaluates Derived if it's worth it given that each of its coeffs will be accessed n times. Operator* uses this with adequate values of n to evaluate args exactly when needed.
* fix a compilation issue with gcc-3.3 and ei_result_ofGravatar Gael Guennebaud2008-04-03
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* -new: recursive costs system, useful to determine automaticallyGravatar Benoit Jacob2008-04-03
| | | | | | | | when to evaluate arguments and when to meta-unroll. -use it in Product to determine when to eval args. not yet used to determine when to unroll. for now, not used anywhere else but that'll follow. -fix badness of my last commit
* - remove Eval/EvalOMP (moving them to a disabled/ subdir in orderGravatar Benoit Jacob2008-03-31
| | | | | | | to preserve SVN history). They are made useless by the new ei_eval_unless_lazy. - introduce a generic Eval member typedef so one can do e.g. T t; U u; Product<T, U>::Eval m; m = t*u;
* Make use of the LazyBit, introduce .lazy(), remove lazyProduct.Gravatar Benoit Jacob2008-03-31
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* * introducte recursive Flags system for the expressionsGravatar Benoit Jacob2008-03-30
| | | | | | -- currently 3 flags: RowMajor, Lazy and Large -- only RowMajor actually used for now * many minor improvements
* * fix compilation with gcc-4.0 which doesn't like "using" too muchGravatar Benoit Jacob2008-03-29
| | | | | | * add Eigen:: in some macros to allow using them from outside of namespace Eigen Problems and solutions communicated by Gael.
* look at that subtle difference in Product.h...Gravatar Benoit Jacob2008-03-26
| | | | | | | | | the cacheOptimal is only good for large enough matrices. When taking a block in a fixed-size (hence small) matrix, the SizeAtCompileTime is Dynamic hence that's not a good indicator. This example shows that the good indicator is MaxSizeAtCompileTime. Result: +10% speed in echelon.cpp
* * add Gael copyright lines on 2 more filesGravatar Benoit Jacob2008-03-26
| | | | | | | * macro renaming: EIGEN_NDEBUG becomes EIGEN_NO_DEBUG as this is much better (and similar to Qt) and EIGEN_CUSTOM_ASSERT becomes EIGEN_USE_CUSTOM_ASSERT * protect Core header by a EIGEN_CORE_H
* * #define EIGEN_NDEBUG now also disables asserts. UsefulGravatar Benoit Jacob2008-03-26
| | | | | | | | | | | | to disable eigen's asserts without disabling one's own program's asserts. Notice that Eigen code should now use ei_assert() instead of assert(). * Remove findBiggestCoeff() as it's now almost redundant. * Improve echelon.cpp: inner for loop replaced by xprs. * remove useless "(*this)." here and there. I think they were first introduced by automatic search&replace. * fix compilation in Visitor.h (issue triggered by echelon.cpp) * improve comment on swap().
* * support for matrix-scalar quotient with integer scalar types.Gravatar Gael Guennebaud2008-03-21
| | | | | | * added cache efficient matrix-matrix product. - provides a huge speed-up for large matrices. - currently it is enabled when an explicit unrolling is not possible.
* * cleanup: in public api docs, don't put \sa links to \internal things.Gravatar Benoit Jacob2008-03-17
| | | | | | | | | | | (the global funcs in MathFunctions.h and Fuzzy.h don't count as internal). * Mainpage.dox. Add a few prospective Eigen users; change the recommended -finline-limit from 10000 to 1000. The reason is: it could be harmful to have a too big value here, couldn't it? (e.g. exceedingly large executables, cache misses). Looking at gcc, a value of 900 would exactly mean "determine the inlining of all functions as if they were marked with 'inline' keyword". So a value of 1000 seems a reasonable round number. In the benchmark that motivated this (TestEigenSolvers) a value of 400 is enough on my system.
* update to fix compilationGravatar Benoit Jacob2008-03-16
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* * Added a generic *redux* mini framework allowing custom redux operationsGravatar Gael Guennebaud2008-03-16
| | | | | | | | | | | | | | | as well as partial redux (vertical or horizontal redux). Includes shortcuts for: sum, minCoeff and maxCoeff. There is no shortcut for the partial redux. * Added a generic *visitor* mini framework. A visitor is a custom object sequentially applied on each coefficient with knowledge of its value and coordinates. It is currentlly used to implement minCoeff(int*,int*) and maxCoeff(int*,int*). findBiggestCoeff is now a shortcut for "this->cwiseAbs().maxCoeff(i,j)" * Added coeff-wise min and max. * fixed an issue with ei_pow(int,int) and gcc < 4.3 or ICC
* - introduce sum() returning the sum of the coeffs of a vectorGravatar Benoit Jacob2008-03-15
| | | | | - reimplement trace() as just diagonal().sum() - apidoc fixes
* - expand MathFunctions.h to provide more functions, like exp, log...Gravatar Benoit Jacob2008-03-14
| | | | | | | | | | | - add cwiseExp(), cwiseLog()... --> for example, doing a gamma-correction on a bitmap image stored as an array of floats is a simple matter of: Eigen::Map<VectorXf> m = VectorXf::map(bitmap,size); m = m.cwisePow(gamma); - apidoc improvements, reorganization of the \name's - remove obsolete examples - remove EIGEN_ALWAYS_INLINE on lazyProduct(), it seems useless.
* get rid of MatrixRef, simplifications.Gravatar Benoit Jacob2008-03-13
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* small fix of VERIFY_ASSERT in debug modeGravatar Gael Guennebaud2008-03-13
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* a lot of renamingGravatar Benoit Jacob2008-03-13
| | | | | | | | internal classes: AaBb -> ei_aa_bb IntAtRunTimeIfDynamic -> ei_int_if_dynamic unify UNROLLING_LIMIT (there was no reason to have operator= use a higher limit) etc...
* fixed an issue with VERIFY_ASSERTGravatar Gael Guennebaud2008-03-12
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* Removed Column and Row in favor of BlockGravatar Gael Guennebaud2008-03-12
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* fix compilation (forgot to update that file after last big change)Gravatar Benoit Jacob2008-03-12
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* generalized ei_traits<>.Gravatar Benoit Jacob2008-03-12
| | | | | | Finally the importing macro is named EIGEN_BASIC_PUBLIC_INTERFACE because it does not only import the ei_traits, it also makes the base class a friend, etc.
* big change: MatrixBase only takes one template parameter "Derived", theGravatar Benoit Jacob2008-03-10
| | | | | | template parameter "Scalar" is removed. This is achieved by introducting a template <typename Derived> struct Scalar to achieve a forward-declaration of the Scalar typedefs.
* * basic support for multicore CPU via a .evalOMP() whichGravatar Gael Guennebaud2008-03-09
| | | | | internaly uses OpenMP if enabled at compile time. * added a bench/ folder with a couple benchmarks and benchmark tools.
* Extended the comma initializer to support xpr on the right side:Gravatar Gael Guennebaud2008-03-08
| | | | | | Matrix3i mat; Vector2i vec(33,66); mat << vec.transpose(), 99, vec, Matrix2i::random();
* * Added support for a comma initializer: mat.block(i,j,2,2) << 1, 2, 3, 4;Gravatar Gael Guennebaud2008-03-08
| | | | | | | | | | If the number of coefficients does not match the matrix size, then an assertion is raised. No support for xpr on the right side for the moment. * Added support for assertion checking. This allows to test that an assertion is indeed raised when it should be. * Fixed a mistake in the CwiseUnary example.
* * coefficient wise operators are more generic, with controllable result type.Gravatar Gael Guennebaud2008-03-06
| | | | | | - compatible with current STL's functors as well as with the extention proposal (TR1) * thanks to the above, Cast and ScalarMultiple have been removed * benchmark_suite is more flexible (compiler and matrix size)
* * Fix a compilation issue with large fixed-size matrices: the unrollers ↵Gravatar Gael Guennebaud2008-03-05
| | | | | | were always instanciated. * the unrolling limits are configurable at compile time.
* renaming: ref() --> asArg()Gravatar Benoit Jacob2008-03-04
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* * Eigen compiles with any GCC versions from, at least, 3.3 without the ↵Gravatar Gael Guennebaud2008-03-04
| | | | | | previous ugly hack :) * Renamed the scalar functors with the "Scalar" prefix (instead of "Cwise")
* Removed trailling spaces.Gravatar Gael Guennebaud2008-03-03
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* * Added generic unary operators (replace Opposite and Conjugate)Gravatar Gael Guennebaud2008-03-03
| | | | | | | | | | | * functor templates are not template template parameter anymore (this allows to make templated functors !) * Main page: extented compiler discussion * A small hack to support gcc 3.4 and 4.0 (see the main page) * Fix a cast type issue in Cast * Various doxygen updates (mainly Cwise stuff and added doxygen groups in MatrixBase to split the huge memeber list, still not perfect though) * Updated Gael's email address
* release alpha4, Gael editionGravatar Benoit Jacob2008-02-29
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* Patch by Gael Guennebaud: coeff-wise binary operators.Gravatar Benoit Jacob2008-02-29
| | | | | This unifies + and - and moreover this patch introduces coeff-wise * and / based on this. Also, corresponding test.
* Patch by Gael Guennebaud: unify fixed-size and dynamic-size BlockGravatar Benoit Jacob2008-02-29
| | | | expressions, update documentation.
* -merge patch from Gael Guennebaud adding NumTraits for long longGravatar Benoit Jacob2008-02-29
| | | | | | | | | | and long double. -define scalar-multiple operators only for the current Scalar type; thanks to Gael for expaining how to make the compiler understand when automatic casting is needed. -take ScalarMultiple take only 1 template param, again. We lose some flexibility especially when dealing with complex numbers, but we gain a lot of extensibility to new scalar types.
* Patch by Gael Guennebaud:Gravatar Benoit Jacob2008-02-29
| | | | | | | Rework the matrix storage to ensure optimal sizeof in all cases, while keeping the decoupling of matrix sizes versus storage sizes. Also fixing (recently introduced) bugs caused by unwanted reallocations of the buffers.
* Relicense --> dual-license LGPL3+/GPL2+Gravatar Benoit Jacob2008-02-28
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* prefix global functions with ei_ as previous solution was ratherGravatar Benoit Jacob2008-02-28
| | | | fragile. also fix compilation with g++ 4.3.
* alpha 3.1. in this commit:Gravatar Benoit Jacob2008-01-15
| | | | | | | | | - finally get the Eval stuff right. get back to having Eval as a subclass of Matrix with limited functionality, and then, add a typedef MatrixType to get the actual matrix type. - add swap(), findBiggestCoeff() - bugfix by Ramon in Transpose - new demo: doc/echelon.cpp
* Eval is now implemented like the other expression types, it no longerGravatar Benoit Jacob2008-01-14
| | | | inherits Matrix. Remove the typedefs I added in Matrix.
* re-optimize Matrix::resize(), add some commentsGravatar Benoit Jacob2008-01-14
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* cleanup in Eval; instead introduce convenient typedefs in MatrixGravatar Benoit Jacob2008-01-14
| | | | | for naming special related matrix types: RowType, ColumnType, BlockType
* final fixes and updates for alpha3Gravatar Benoit Jacob2008-01-13
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* documentation update for alpha 3Gravatar Benoit Jacob2008-01-13
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* big improvement of the block-manipulation APIGravatar Benoit Jacob2008-01-13
| | | | | | | - reduction of sizeof(Block) for vector types - variants of block() and fixedBlock() for vector blocks - convenience methods start() and end() for vectors - convenience method corner() for matrices
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