Rasmus Munk Larsen 3ed67cb0bb Fix a bug in the implementation of Carmack's fast sqrt algorithm in Eigen (enabled by EIGEN_FAST_MATH), which causes the vectorized parts of the computation to return -0.0 instead of NaN for negative arguments. ...

Benchmark speed in Giga-sqrts/s
Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz
-----------------------------------------
                    SSE        AVX
Fast=1              2.529G     4.380G
Fast=0              1.944G     1.898G
Fast=1 fixed        2.214G     3.739G

This table illustrates the worst case in terms speed impact: It was measured by repeatedly computing the sqrt of an n=4096 float vector that fits in L1 cache. For large vectors the operation becomes memory bound and the differences between the different versions almost negligible.

2016-10-04 14:22:56 -07:00

..

src

Fix a bug in the implementation of Carmack's fast sqrt algorithm in Eigen (enabled by EIGEN_FAST_MATH), which causes the vectorized parts of the computation to return -0.0 instead of NaN for negative arguments.

2016-10-04 14:22:56 -07:00

Cholesky

Clean references to MKL in LAPACKe support.

2016-07-25 18:20:08 +02:00

CholmodSupport

Update link to suitesparse.

2016-01-27 22:48:40 +01:00

CMakeLists.txt

bug #1167: simplify installation of header files using cmake's install(DIRECTORY ...) command.

2016-08-29 10:59:37 +02:00

Core

Added support for constand std::complex numbers on GPU

2016-10-03 11:06:24 -07:00

Dense

Add newline at the end of Dense.

2010-07-23 19:00:02 +02:00

Eigen

Sparse is stable now, so Eigen/Eigen should include Sparse

2013-10-02 23:31:59 +02:00

Eigenvalues

Clean references to MKL in LAPACKe support.

2016-07-25 18:20:08 +02:00

Geometry

Fix numerous doxygen issues in auto-link generation

2015-12-30 16:04:24 +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

LU

Clean references to MKL in LAPACKe support.

2016-07-25 18:20:08 +02:00

MetisSupport

Add missing licence header to some top header files

2015-10-26 11:46:05 +01:00

OrderingMethods

Add missing licence header to some top header files

2015-10-26 11:46:05 +01:00

PardisoSupport

Fix compilation of PardisoSupport

2015-12-11 11:11:00 +01:00

PaStiXSupport

bug #1147: fix compilation of PastixSupport

2016-01-20 18:15:59 +01:00

QR

Clean references to MKL in LAPACKe support.

2016-07-25 18:20:08 +02:00

QtAlignedMalloc

Add missing licence header to some top header files

2015-10-26 11:46:05 +01:00

Sparse

Add missing licence header to some top header files

2015-10-26 11:46:05 +01:00

SparseCholesky

Remove deprecated code not used by evaluators

2014-09-18 15:15:27 +02:00

SparseCore

bug #1101: typo

2015-10-30 12:02:52 +01:00

SparseLU

Remove deprecated code not used by evaluators

2014-09-18 15:15:27 +02:00

SparseQR

Add missing licence header to some top header files

2015-10-26 11:46:05 +01:00

SPQRSupport

Update link to suitesparse.

2016-01-27 22:48:40 +01:00

StdDeque

Introduce unified macros to identify compiler, OS, and architecture. They are all defined in util/Macros.h and prefixed with EIGEN_COMP_, EIGEN_OS_, and EIGEN_ARCH_ respectively.

2014-11-04 21:58:52 +01:00

StdList

Introduce unified macros to identify compiler, OS, and architecture. They are all defined in util/Macros.h and prefixed with EIGEN_COMP_, EIGEN_OS_, and EIGEN_ARCH_ respectively.

2014-11-04 21:58:52 +01:00

StdVector

Introduce unified macros to identify compiler, OS, and architecture. They are all defined in util/Macros.h and prefixed with EIGEN_COMP_, EIGEN_OS_, and EIGEN_ARCH_ respectively.

2014-11-04 21:58:52 +01:00

SuperLUSupport

bug #1119: Adjust call to ?gssvx for SuperLU 5

2016-07-10 02:29:57 +02:00

SVD

Clean references to MKL in LAPACKe support.

2016-07-25 18:20:08 +02:00

UmfPackSupport

Update link to suitesparse.

2016-01-27 22:48:40 +01:00