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cf12474a8b
eigen/Eigen
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Rasmus Munk Larsen cf12474a8b Optimize matrix*matrix and matrix*vector products when they correspond to inner products at runtime. 
This speeds up inner products where the one or or both arguments is dynamic for small and medium-sized vectors (up to 32k).

name                           old time/op             new time/op   delta
BM_VecVecStatStat<float>/1     1.64ns ± 0%             1.64ns ± 0%     ~
BM_VecVecStatStat<float>/8     2.99ns ± 0%             2.99ns ± 0%     ~
BM_VecVecStatStat<float>/64    7.00ns ± 1%             7.04ns ± 0%   +0.66%
BM_VecVecStatStat<float>/512   61.6ns ± 0%             61.6ns ± 0%     ~
BM_VecVecStatStat<float>/4k     551ns ± 0%              553ns ± 1%   +0.26%
BM_VecVecStatStat<float>/32k   4.45µs ± 0%             4.45µs ± 0%     ~
BM_VecVecStatStat<float>/256k  77.9µs ± 0%             78.1µs ± 1%     ~
BM_VecVecStatStat<float>/1M     312µs ± 0%              312µs ± 1%     ~
BM_VecVecDynStat<float>/1      13.3ns ± 1%              4.6ns ± 0%  -65.35%
BM_VecVecDynStat<float>/8      14.4ns ± 0%              6.2ns ± 0%  -57.00%
BM_VecVecDynStat<float>/64     24.0ns ± 0%             10.2ns ± 3%  -57.57%
BM_VecVecDynStat<float>/512     138ns ± 0%               68ns ± 0%  -50.52%
BM_VecVecDynStat<float>/4k     1.11µs ± 0%             0.56µs ± 0%  -49.72%
BM_VecVecDynStat<float>/32k    8.89µs ± 0%             4.46µs ± 0%  -49.89%
BM_VecVecDynStat<float>/256k   78.2µs ± 0%             78.1µs ± 1%     ~
BM_VecVecDynStat<float>/1M      313µs ± 0%              312µs ± 1%     ~
BM_VecVecDynDyn<float>/1       10.4ns ± 0%             10.5ns ± 0%   +0.91%
BM_VecVecDynDyn<float>/8       12.0ns ± 3%             11.9ns ± 0%     ~
BM_VecVecDynDyn<float>/64      37.4ns ± 0%             19.6ns ± 1%  -47.57%
BM_VecVecDynDyn<float>/512      159ns ± 0%               81ns ± 0%  -49.07%
BM_VecVecDynDyn<float>/4k      1.13µs ± 0%             0.58µs ± 1%  -49.11%
BM_VecVecDynDyn<float>/32k     8.91µs ± 0%             5.06µs ±12%  -43.23%
BM_VecVecDynDyn<float>/256k    78.2µs ± 0%             78.2µs ± 1%     ~
BM_VecVecDynDyn<float>/1M       313µs ± 0%              312µs ± 1%     ~
2020-11-12 18:02:37 +00:00
..
src Optimize matrix*matrix and matrix*vector products when they correspond to inner products at runtime. 2020-11-12 18:02:37 +00:00
Cholesky bug #1455: Cholesky module depends on Jacobi for rank-updates. 2017-08-22 11:37:32 +02:00
CholmodSupport Update link to suitesparse. 2016-01-27 22:48:40 +01:00
Core Drop EIGEN_USING_STD_MATH in favour of EIGEN_USING_STD 2020-10-09 02:05:05 +02:00
Dense
Eigen Sparse is stable now, so Eigen/Eigen should include Sparse 2013-10-02 23:31:59 +02:00
Eigenvalues Old gcc versions have problems with recursive #pragma GCC diagnostic push/pop 2018-08-28 11:44:15 +02:00
Geometry Enable SSE vectorization of Quaternion and cross3() with AVX 2019-02-23 10:45:40 +01:00
Householder Add missing licence header to some top header files 2015-10-26 11:46:05 +01:00
IterativeLinearSolvers Add missing licence header to some top header files 2015-10-26 11:46:05 +01:00
Jacobi Add missing licence header to some top header files 2015-10-26 11:46:05 +01:00
KLUSupport Move KLU support to official 2017-11-10 14:11:22 +01:00
LU Add Inverse_NEON.h 2020-09-04 10:55:47 +00:00
MetisSupport Add missing licence header to some top header files 2015-10-26 11:46:05 +01:00
OrderingMethods Remove EIGEN_MPL2_ONLY guards around code re-licensed from LGPL to MPL2 in 2ca1e73239 2019-03-05 10:24:54 -08:00
PardisoSupport Extend CUDA support to matrix inversion and selfadjointeigensolver 2018-06-11 18:33:24 +02:00
PaStiXSupport clarify Pastix requirements 2017-11-27 22:11:57 +01:00
QR Old gcc versions have problems with recursive #pragma GCC diagnostic push/pop 2018-08-28 11:44:15 +02:00
QtAlignedMalloc bug #1468 (1/2) : add missing std:: to memcpy 2017-09-22 09:23:24 +02:00
Sparse Remove EIGEN_MPL2_ONLY guards around code re-licensed from LGPL to MPL2 in 2ca1e73239 2019-03-05 10:24:54 -08:00
SparseCholesky Remove EIGEN_MPL2_ONLY guards around code re-licensed from LGPL to MPL2 in 2ca1e73239 2019-03-05 10:24:54 -08:00
SparseCore bug #1101: typo 2015-10-30 12:02:52 +01:00
SparseLU Fix numerous shadow-warnings for GCC<=4.8 2018-08-28 18:32:39 +02:00
SparseQR Old gcc versions have problems with recursive #pragma GCC diagnostic push/pop 2018-08-28 11:44:15 +02:00
SPQRSupport Update link to suitesparse. 2016-01-27 22:48:40 +01:00
StdDeque bug #1389: MSVC's std containers do not properly align in 64 bits mode if the requested alignment is larger than 16 bytes (e.g., with AVX) 2017-02-03 15:22:35 +01:00
StdList bug #1389: MSVC's std containers do not properly align in 64 bits mode if the requested alignment is larger than 16 bytes (e.g., with AVX) 2017-02-03 15:22:35 +01:00
StdVector bug #1389: MSVC's std containers do not properly align in 64 bits mode if the requested alignment is larger than 16 bytes (e.g., with AVX) 2017-02-03 15:22:35 +01:00
SuperLUSupport bug #1119: Adjust call to ?gssvx for SuperLU 5 2016-07-10 02:29:57 +02:00
SVD use MKL's lapacke.h header when using MKL 2017-08-17 21:58:39 +02:00
UmfPackSupport Update link to suitesparse. 2016-01-27 22:48:40 +01:00