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Author SHA1 Message Date
Rasmus Munk Larsen
47d8b741b2 #elif -> #else to fix GPU build. 2018-12-05 13:19:31 -08:00
Rasmus Munk Larsen
8a02883d58 Merged in markdryan/eigen/avx512-contraction-2 (pull request PR-554) 
Fix tensor contraction on AVX512 builds

Approved-by: Rasmus Munk Larsen <rmlarsen@google.com>
 2018-12-05 18:19:32 +00:00
Gael Guennebaud
acc3459a49 Add help messages in the quick ref/ascii docs regarding slicing, indexing, and reshaping. 2018-12-05 17:17:23 +01:00
Gael Guennebaud
e2e897298a Fix page nesting 2018-12-05 17:13:46 +01:00
Christoph Hertzberg
c1d356e8b4 bug #1635: Use infinity from Numtraits instead of creating it manually. 2018-12-05 15:01:04 +01:00
Mark D Ryan
36f8f6d0be Fix evalShardedByInnerDim for AVX512 builds 
evalShardedByInnerDim ensures that the values it passes for start_k and
end_k to evalGemmPartialWithoutOutputKernel are multiples of 8 as the kernel
does not work correctly when the values of k are not multiples of the
packet_size.  While this precaution works for AVX builds, it is insufficient
for AVX512 builds where the maximum packet size is 16.  The result is slightly
incorrect float32 contractions on AVX512 builds.

This commit fixes the problem by ensuring that k is always a multiple of
the packet_size if the packet_size is > 8.
 2018-12-05 12:29:03 +01:00
Rasmus Munk Larsen
b57b31cce9 Merged in ezhulenev/eigen-01 (pull request PR-553) 
Do not disable alignment with EIGEN_GPUCC

Approved-by: Rasmus Munk Larsen <rmlarsen@google.com>
 2018-12-04 23:47:19 +00:00
Eugene Zhulenev
0bb15bb6d6 Update checks in ConfigureVectorization.h 2018-12-03 17:10:40 -08:00
Eugene Zhulenev
fd0fbfa9b5 Do not disable alignment with EIGEN_GPUCC 2018-12-03 15:54:10 -08:00
Christoph Hertzberg
919414b9fe bug #785: Make Cholesky decomposition work for empty matrices 2018-12-03 16:18:15 +01:00
Gael Guennebaud
0ea7ae7213 Add missing padd for Packet8i (it was implicitly generated by clang and gcc) 2018-11-30 21:52:25 +01:00
Gael Guennebaud
ab4df3e6ff bug #1634: remove double copy in move-ctor of non movable Matrix/Array 2018-11-30 21:25:51 +01:00
Gael Guennebaud
c785464430 Add packet sin and cos to Altivec/VSX and NEON 2018-11-30 16:21:33 +01:00
Gael Guennebaud
69ace742be Several improvements regarding packet-bitwise operations: 
- add unit tests
- optimize their AVX512f implementation
- add missing implementations (half, Packet4f, ...)
 2018-11-30 15:56:08 +01:00
Gael Guennebaud
fa87f9d876 Add psin/pcos on AVX512 -> almost for free, at last! 2018-11-30 14:33:13 +01:00
Gael Guennebaud
c68bd2fa7a Cleanup 2018-11-30 14:32:31 +01:00
Gael Guennebaud
f91500d303 Fix pandnot order in AVX512 2018-11-30 14:32:06 +01:00
Gael Guennebaud
b477d60bc6 Extend the generic psin_float code to handle cosine and make SSE and AVX use it (-> this adds pcos for AVX) 2018-11-30 11:26:30 +01:00
Gael Guennebaud
e19ece822d Disable fma gcc's workaround for gcc >= 8 (based on GEMM benchmarks) 2018-11-28 17:56:24 +01:00
Gael Guennebaud
41052f63b7 same for pmax 2018-11-28 17:17:28 +01:00
Gael Guennebaud
3e95e398b6 pmin/pmax o SSE: make sure to use AVX instruction with AVX enabled, and disable gcc workaround for fixed gcc versions 2018-11-28 17:14:20 +01:00
Gael Guennebaud
aa6097395b Add missing SSE/AVX type-casting in AVX512 mode 2018-11-28 16:09:08 +01:00
Gael Guennebaud
48fe78c375 bug #1630: fix linspaced when requesting smaller packet size than default one. 2018-11-28 13:15:06 +01:00
Eugene Zhulenev
80f1651f35 Use explicit packet type in SSE/PacketMath pldexp 2018-11-27 17:25:49 -08:00
Benoit Jacob
a4159dba08 do not read buffers out of bounds -- load only the 4 bytes we know exist here. Could also have done a vld1_lane_f32 but doing so here, without the overhead of initializing the unused lane, would have triggered used-of-uninitialized-value errors in tools such as ASan. Note that this code is sub-optimal before or after this change: we should be reading either 2 or 4 float32 values per load-instruction (2 for ARM in-order cores with an affinity for 8-byte loads; 4 for ARM out-of-order cores able to dual-issue 16-byte load instructions with arithmetic instructions). Before or after this patch, we are only loading 4 bytes of useful data here (even if before this patch, we were technically loading 8, only to use only the 4 first). 2018-11-27 16:53:14 -05:00
Gael Guennebaud
b131a4db24 bug #1631: fix compilation with ARM NEON and clang, and cleanup the weird pshiftright_and_cast and pcast_and_shiftleft functions. 2018-11-27 23:45:00 +01:00
Gael Guennebaud
a1a5fbbd21 Update pshiftleft to pass the shift as a true compile-time integer. 2018-11-27 22:57:30 +01:00
Gael Guennebaud
fa7fd61eda Unify SSE/AVX psin functions. 
It is based on the SSE version which is much more accurate, though very slightly slower.
This changeset also includes the following required changes:
 - add packet-float to packet-int type traits
 - add packet float<->int reinterpret casts
 - add faster pselect for AVX based on blendv
 2018-11-27 22:41:51 +01:00
Rasmus Munk Larsen
08edbc8cfe Merged in bjacob/eigen/fixbuild (pull request PR-549) 
fix the build on 64-bit ARM when NEON is disabled
 2018-11-27 20:14:12 +00:00
Benoit Jacob
7b1cb8a440 fix the build on 64-bit ARM when NEON is disabled 2018-11-27 11:11:02 -05:00
Gael Guennebaud
b5695a6008 Unify Altivec/VSX pexp(double) with default implementation 2018-11-27 13:53:05 +01:00
Gael Guennebaud
7655a8af6e cleanup 2018-11-26 23:21:29 +01:00
Gael Guennebaud
502f92fa10 Unify SSE and AVX pexp for double. 2018-11-26 23:12:44 +01:00
Gael Guennebaud
4a347a0054 Unify NEON's pexp with generic implementation 2018-11-26 22:15:44 +01:00
Gael Guennebaud
5c8406babc Unify Altivec/VSX's pexp with generic implementation 2018-11-26 16:47:13 +01:00
Gael Guennebaud
cf8b85d5c5 Unify SSE and AVX implementation of pexp 2018-11-26 16:36:19 +01:00
Gael Guennebaud
c2f35b1b47 Unify Altivec/VSX's plog with generic implementation, and enable it! 2018-11-26 15:58:11 +01:00
Gael Guennebaud
c24e98e6a8 Unify NEON's plog with generic implementation 2018-11-26 15:02:16 +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
382279eb7f Extend unit test to recursively check half-packet types and non packet types 2018-11-26 14:10:07 +01:00
Gael Guennebaud
0836a715d6 bug #1611: fix plog(0) on NEON 2018-11-26 09:08:38 +01:00
Patrik Huber
95566eeed4 Fix typos 2018-11-23 22:22:14 +00:00
Gael Guennebaud
e3b22a6bd0 merge 2018-11-23 16:06:21 +01:00
Gael Guennebaud
ccabdd88c9 Fix reserved usage of double __ in macro names 2018-11-23 16:01:47 +01:00
Gael Guennebaud
572d62697d check two ctors 2018-11-23 15:37:09 +01:00
Gael Guennebaud
354f14293b Fix double = bool ! 2018-11-23 15:12:06 +01:00
Gael Guennebaud
a7842daef2 Fix several uninitialized member from ctor 2018-11-23 15:10:28 +01:00
Christoph Hertzberg
ea60a172cf Add default constructor to Bar to make test compile again with clang-3.8 2018-11-23 14:24:22 +01:00
Christoph Hertzberg
806352d844 Small typo found be Patrick Huber (pull request PR-547) 2018-11-23 12:34:27 +00:00