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86 Commits

Author SHA1 Message Date
Gael Guennebaud
cf8b85d5c5 Unify SSE and AVX implementation of pexp 2018-11-26 16:36:19 +01:00
Gael Guennebaud
2c44c40114 First step toward a unification of packet log implementation, currently only SSE and AVX are unified. 
To this end, I added the following functions: pzero, pcmp_*, pfrexp, pset1frombits functions.
 2018-11-26 14:21:24 +01:00
Gael Guennebaud
5f6045077c Make SSE/AVX pandnot(A,B) consistent with generic version, i.e., "A and not B" 2018-11-26 14:14:07 +01:00
Gael Guennebaud
7134fa7a2e Fix compilation with MSVC by reverting to char* for _mm_prefetch except for PGI (the later being the one that has the wrong prototype). 2018-06-07 09:33:10 +02:00
Gael Guennebaud
49262dfee6 Fix compilation and SSE support with PGI compiler 2018-05-29 15:09:31 +02:00
Gael Guennebaud
112c899304 comment unreachable code 2018-04-03 23:16:43 +02:00
Gael Guennebaud
584951ca4d Rename predux_downto4 to be more accurate on its semantic. 2018-04-03 14:28:38 +02:00
Gael Guennebaud
b240080e64 bug #1436: fix compilation of Jacobi rotations with ARM NEON, some specializations of internal::conj_helper were missing. 2017-06-15 10:16:30 +02:00
Rasmus Munk Larsen
5c9ed4ba0d Reverse arguments for pmin in AVX. 2017-01-25 09:21:57 -08:00
Rasmus Munk Larsen
5e144bbaa4 Make NaN propagatation consistent between the pmax/pmin and std::max/std::min. This makes the NaN propagation consistent between the scalar and vectorized code paths of Eigen's scalar_max_op and scalar_min_op. 
See #1373 for details.
 2017-01-24 13:32:50 -08:00
Gael Guennebaud
e340866c81 Fix compilation with gcc and old ABI version 2016-11-23 14:04:57 +01:00
Gael Guennebaud
74637fa4e3 Optimize predux<Packet8f> (AVX) 2016-11-22 21:57:52 +01:00
Gael Guennebaud
7dd894e40e Optimize predux<Packet4d> (AVX) 2016-11-22 21:41:30 +01:00
Benoit Steiner
c80587c92b Merged eigen/eigen into default 2016-11-03 03:55:11 -07:00
Gael Guennebaud
598de8b193 Add pinsertfirst function and implement pinsertlast for complex on SSE/AVX. 2016-11-02 10:38:13 +01:00
Gael Guennebaud
aad72f3c6d Add missing inline keywords 2016-10-25 20:20:09 +02:00
Gael Guennebaud
13fc18d3a2 Add a pinsertlast function replacing the last entry of a packet by a scalar. 
(useful to vectorize LinSpaced)
 2016-10-25 16:48:49 +02:00
Benoit Steiner
78d2926508 Merged eigen/eigen into default 2016-10-12 13:46:29 -07:00
Rasmus Munk Larsen
47150af1c8 Fix copy-paste error: Must use _mm256_cmp_ps for AVX. 2016-10-12 08:34:39 -07:00
Benoit Steiner
507b661106 Renamed predux_half into predux_downto4 2016-10-06 17:57:04 -07:00
Benoit Steiner
78b569f685 Merged latest updates from trunk 2016-10-05 18:48:55 -07:00
Rasmus Munk Larsen
7f67e6dfdb Update comment for fast sqrt. 2016-10-04 15:09:11 -07:00
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
Gael Guennebaud
471eac5399 bug #1195: move NumTraits::Div<>::Cost to internal::scalar_div_cost (with some specializations in arch/SSE and arch/AVX) 2016-09-08 08:36:27 +02:00
Gael Guennebaud
35a8e94577 bug #1167: simplify installation of header files using cmake's install(DIRECTORY ...) command. 2016-08-29 10:59:37 +02:00
Gael Guennebaud
a4c266f827 Factorize the 4 copies of tanh implementations, make numext::tanh consistent with array::tanh, enable fast tanh in fast-math mode only. 2016-08-23 14:23:08 +02:00
Gael Guennebaud
2d5731e40a bug #1270: bypass custom asm for pmadd and recent clang version 2016-08-22 15:38:03 +02:00
Benoit Steiner
d6e596174d Pull latest updates from upstream 2016-04-11 17:20:17 -07:00
Benoit Steiner
8ce46f9d89 Improved implementation of ptanh for SSE and AVX 2016-02-18 13:24:34 -08:00
Benoit Steiner
6d8b1dce06 Avoid implicit cast from double to float. 2016-02-10 18:07:11 -08:00
Benoit Steiner
2d523332b3 Optimized implementation of the hyperbolic tangent function for AVX 2016-02-10 08:48:05 -08:00
Benoit Steiner
85b6d82b49 Generalized predux4 to support AVX512 packets, and renamed it predux_half. 
Disabled the implementation of pabs for avx512 since the corresponding intrinsics are not shipped with gcc
 2016-02-01 14:35:51 -08:00
Benoit Steiner
c1a42c2d0d Don't disable the AVX implementations of plset when compiling with AVX512 enabled 2016-01-14 17:21:39 -08:00
Gael Guennebaud
d2e288ae50 Workaround compilers that do not even define _mm256_set_m128. 2015-12-24 16:53:43 +01:00
Benoit Steiner
994d1c60b9 Free memory allocated using posix_memalign() with free() instead of std::free() 2015-12-21 11:21:39 -08:00
Benoit Steiner
6d777e1bc7 Fixed a typo. 2015-12-18 19:25:50 -08:00
Gael Guennebaud
3abd8470ca bug #1140: remove custom definition and use of _mm256_setr_m128 2015-12-18 14:18:59 +01:00
Gael Guennebaud
90323f1751 Fix AVX round/ceil/floor, and fix respective unit test 2015-11-04 22:15:57 +01:00
Alexandre Avenel
d46e2c10a6 Add round, ceil and floor for SSE4.1/AVX (Bug #70) 2015-11-01 10:49:27 +01:00
Gael Guennebaud
75861f6650 bug #1069: fix AVX support on MSVC (use of non portable C-style cast) 2015-09-28 10:08:26 +02:00
Gael Guennebaud
6245591349 Fix prototype of plset and generalize linspace functor. 2015-08-07 19:27:59 +02:00
Gael Guennebaud
e68c7b8368 Include SSE packetmath when AVX is enabled, and enable AVX's sine function only in fast-math mode (as SSE) 2015-08-07 17:40:39 +02:00
Gael Guennebaud
ce57dbd937 Let unpacket_traits<> exposes the required alignment and make use of it everywhere 2015-08-07 10:44:01 +02:00
Gael Guennebaud
9a2447b0c9 Fix shadow warnings triggered by clang 2015-06-09 09:11:12 +02:00
Benoit Steiner
1dded10cb7 Added a double-precision implementation of the exp() function for AVX. 2015-05-04 10:42:51 -07:00
Benoit Steiner
0196141938 Fixed the optimized AVX implementation of the fast rsqrt function 2015-03-02 13:49:39 -08:00
Benoit Steiner
4fd7f47692 Added an optimized version of rsqrt for SSE and AVX that is used when EIGEN_FAST_MATH is defined. 2015-03-02 09:38:47 -08:00
Benoit Steiner
573b377110 Added support for vectorized type casting of tensors 2015-02-27 08:46:04 -08:00
Benoit Steiner
f41b1f1666 Added support for fast reciprocal square root computation. 2015-02-26 09:42:41 -08:00
Gael Guennebaud
98604576d1 Merged in chtz/eigen-indexconversion (pull request PR-92) 
bug #877, bug #572: Get rid of Index conversion warnings, summary of changes:

- Introduce a global typedef Eigen::Index making Eigen::DenseIndex and AnyExpr<>::Index deprecated (default is std::ptrdiff_t).

 - Eigen::Index is used throughout the API to represent indices, offsets, and sizes.

 - Classes storing an array of indices uses the type StorageIndex to store them. This is a template parameter of the class. Default is int.

 - Methods that *explicitly* set or return an element of such an array take or return a StorageIndex type. In all other cases, the Index type is used.
 2015-02-16 15:29:00 +01:00