Gael Guennebaud
7ad07fc6f2
Update documentation for aligned_allocator
2017-09-20 10:22:00 +02:00
LaFeuille
7c9b07dc5c
Typo fix alignmeent ->alignment
2017-09-20 06:38:39 +00:00
Christoph Hertzberg
23f8b00bc8
clang provides __has_feature(is_enum) (but not <type_traits>) in C++03 mode
2017-09-14 19:26:03 +02:00
Christoph Hertzberg
0c9ad2f525
std::integral_constant is not C++03 compatible
2017-09-14 19:23:38 +02:00
Gael Guennebaud
6d42309f13
Fix compilation of Vector::operator()(enum) by treating enums as Index
2017-09-07 14:34:30 +02:00
Gael Guennebaud
21633e585b
bug #1462 : remove all occurences of the deprecated __CUDACC_VER__ macro by introducing EIGEN_CUDACC_VER
2017-08-24 11:06:47 +02:00
Gael Guennebaud
b0f55ef85a
merge
2017-02-21 17:04:10 +01:00
Gael Guennebaud
9b6e365018
Fix linking issue.
2017-02-21 16:52:22 +01:00
Gael Guennebaud
3d200257d7
Add support for automatic-size deduction in reshaped, e.g.:
...
mat.reshaped(4,AutoSize); <-> mat.reshaped(4,mat.size()/4);
2017-02-21 15:57:25 +01:00
Gael Guennebaud
1e3aa470fa
Fix long to int conversion
2017-02-21 13:56:01 +01:00
Gael Guennebaud
b3fc0007ae
Add support for mat(all) as an alias to mat.reshaped(mat.size(),fix<1>);
2017-02-21 13:49:09 +01:00
Gael Guennebaud
63798df038
Fix usage of CUDACC_VER
2017-02-20 08:16:36 +01:00
Gael Guennebaud
5937c4ae32
Fall back is_integral to std::is_integral in c++11
2017-02-13 17:14:26 +01:00
Jonathan Hseu
3453b00a1e
Fix vector indexing with uint64_t
2017-02-11 21:45:32 -08:00
Gael Guennebaud
4b22048cea
Fallback Reshaped to MapBase when possible (same storage order and linear access to the nested expression)
2017-02-11 15:32:53 +01:00
Gael Guennebaud
e43016367a
Forgot to include a file in previous commit
2017-02-11 10:34:18 +01:00
Benoit Steiner
8b3cc54c42
Added a new EIGEN_HAS_INDEXED_VIEW define that set to 0 for older compilers that are known to fail to compile the indexed views (I used the define from the indexed_views.cpp test).
...
Only include the indexed view methods when the compiler supports the code.
This makes it possible to use Eigen again in complex code bases such as TensorFlow and older compilers such as gcc 4.8
2017-02-10 13:08:49 -08:00
Gael Guennebaud
0256c52359
Include clang in the list of non strict MSVC (just to be sure)
2017-02-10 13:41:52 +01:00
Gael Guennebaud
0eceea4efd
Define EIGEN_COMP_GNUC to reflect version number: 47, 48, 49, 50, 60, ...
2017-02-01 23:36:40 +01:00
Gael Guennebaud
9036cda364
Cleanup intitial reshape implementation:
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- reshape -> reshaped
- make it compatible with evaluators.
2017-01-29 14:57:45 +01:00
Gael Guennebaud
0e89baa5d8
import yoco xiao's work on reshape
2017-01-29 14:29:31 +01:00
Gael Guennebaud
d024e9942d
MSVC 1900 release is not c++14 compatible enough for us. The 1910 update seems to be fine though.
2017-01-27 22:17:59 +01:00
Rasmus Munk Larsen
edaa0fc5d1
Revert PR-292. After further investigation, the memcpy->memmove change was only good for Haswell on older versions of glibc. Adding a switch for small sizes is perhaps useful for string copies, but also has an overhead for larger sizes, making it a poor trade-off for general memcpy.
...
This PR also removes a couple of unnecessary semi-colons in Eigen/src/Core/AssignEvaluator.h that caused compiler warning everywhere.
2017-01-26 12:46:06 -08:00
Gael Guennebaud
25a1703579
Merged in ggael/eigen-flexidexing (pull request PR-294)
...
generalized operator() for indexed access and slicing
2017-01-26 08:04:23 +00:00
Gael Guennebaud
28351073d8
Fix unamed type as template argument (ok in c++11 only)
2017-01-25 22:54:51 +01:00
Gael Guennebaud
607be65a03
Fix duplicates of array_size bewteen unsupported and Core
2017-01-25 22:53:58 +01:00
Gael Guennebaud
296d24be4d
bug #1381 : fix sparse.diagonal() used as a rvalue.
...
The problem was that is "sparse" is not const, then sparse.diagonal() must have the
LValueBit flag meaning that sparse.diagonal().coeff(i) must returns a const reference,
const Scalar&. However, sparse::coeff() cannot returns a reference for a non-existing
zero coefficient. The trick is to return a reference to a local member of
evaluator<SparseMatrix>.
2017-01-25 17:39:01 +01:00
Rasmus Munk Larsen
3be5ee2352
Update copy helper to use fast_memcpy.
2017-01-24 14:22:49 -08:00
Rasmus Munk Larsen
e6b1020221
Adds a fast memcpy function to Eigen. This takes advantage of the following:
...
1. For small fixed sizes, the compiler generates inline code for memcpy, which is much faster.
2. My colleague eriche at googl dot com discovered that for large sizes, memmove is significantly faster than memcpy (at least on Linux with GCC or Clang). See benchmark numbers measured on a Haswell (HP Z440) workstation here: https://docs.google.com/a/google.com/spreadsheets/d/1jLs5bKzXwhpTySw65MhG1pZpsIwkszZqQTjwrd_n0ic/pubhtml This is of course surprising since memcpy is a less constrained version of memmove. This stackoverflow thread contains some speculation as to the causes: http://stackoverflow.com/questions/22793669/poor-memcpy-performance-on-linux
Below are numbers for copying and slicing tensors using the multithreaded TensorDevice. The numbers show significant improvements for memcpy of very small blocks and for memcpy of large blocks single threaded (we were already able to saturate memory bandwidth for >1 threads before on large blocks). The "slicingSmallPieces" benchmark also shows small consistent improvements, since memcpy cost is a fair portion of that particular computation.
The benchmarks operate on NxN matrices, and the names are of the form BM_$OP_${NUMTHREADS}T/${N}.
Measured improvements in wall clock time:
Run on rmlarsen3.mtv (12 X 3501 MHz CPUs); 2017-01-20T11:26:31.493023454-08:00
CPU: Intel Haswell with HyperThreading (6 cores) dL1:32KB dL2:256KB dL3:15MB
Benchmark Base (ns) New (ns) Improvement
------------------------------------------------------------------
BM_memcpy_1T/2 3.48 2.39 +31.3%
BM_memcpy_1T/8 12.3 6.51 +47.0%
BM_memcpy_1T/64 371 383 -3.2%
BM_memcpy_1T/512 66922 66720 +0.3%
BM_memcpy_1T/4k 9892867 6849682 +30.8%
BM_memcpy_1T/5k 14951099 10332856 +30.9%
BM_memcpy_2T/2 3.50 2.46 +29.7%
BM_memcpy_2T/8 12.3 7.66 +37.7%
BM_memcpy_2T/64 371 376 -1.3%
BM_memcpy_2T/512 66652 66788 -0.2%
BM_memcpy_2T/4k 6145012 6117776 +0.4%
BM_memcpy_2T/5k 9181478 9010942 +1.9%
BM_memcpy_4T/2 3.47 2.47 +31.0%
BM_memcpy_4T/8 12.3 6.67 +45.8
BM_memcpy_4T/64 374 376 -0.5%
BM_memcpy_4T/512 67833 68019 -0.3%
BM_memcpy_4T/4k 5057425 5188253 -2.6%
BM_memcpy_4T/5k 7555638 7779468 -3.0%
BM_memcpy_6T/2 3.51 2.50 +28.8%
BM_memcpy_6T/8 12.3 7.61 +38.1%
BM_memcpy_6T/64 373 378 -1.3%
BM_memcpy_6T/512 66871 66774 +0.1%
BM_memcpy_6T/4k 5112975 5233502 -2.4%
BM_memcpy_6T/5k 7614180 7772246 -2.1%
BM_memcpy_8T/2 3.47 2.41 +30.5%
BM_memcpy_8T/8 12.4 10.5 +15.3%
BM_memcpy_8T/64 372 388 -4.3%
BM_memcpy_8T/512 67373 66588 +1.2%
BM_memcpy_8T/4k 5148462 5254897 -2.1%
BM_memcpy_8T/5k 7660989 7799058 -1.8%
BM_memcpy_12T/2 3.50 2.40 +31.4%
BM_memcpy_12T/8 12.4 7.55 +39.1
BM_memcpy_12T/64 374 378 -1.1%
BM_memcpy_12T/512 67132 66683 +0.7%
BM_memcpy_12T/4k 5185125 5292920 -2.1%
BM_memcpy_12T/5k 7717284 7942684 -2.9%
BM_slicingSmallPieces_1T/2 47.3 47.5 +0.4%
BM_slicingSmallPieces_1T/8 53.6 52.3 +2.4%
BM_slicingSmallPieces_1T/64 491 476 +3.1%
BM_slicingSmallPieces_1T/512 21734 18814 +13.4%
BM_slicingSmallPieces_1T/4k 394660 396760 -0.5%
BM_slicingSmallPieces_1T/5k 218722 209244 +4.3%
BM_slicingSmallPieces_2T/2 80.7 79.9 +1.0%
BM_slicingSmallPieces_2T/8 54.2 53.1 +2.0
BM_slicingSmallPieces_2T/64 497 477 +4.0%
BM_slicingSmallPieces_2T/512 21732 18822 +13.4%
BM_slicingSmallPieces_2T/4k 392885 390490 +0.6%
BM_slicingSmallPieces_2T/5k 221988 208678 +6.0%
BM_slicingSmallPieces_4T/2 80.8 80.1 +0.9%
BM_slicingSmallPieces_4T/8 54.1 53.2 +1.7%
BM_slicingSmallPieces_4T/64 493 476 +3.4%
BM_slicingSmallPieces_4T/512 21702 18758 +13.6%
BM_slicingSmallPieces_4T/4k 393962 404023 -2.6%
BM_slicingSmallPieces_4T/5k 249667 211732 +15.2%
BM_slicingSmallPieces_6T/2 80.5 80.1 +0.5%
BM_slicingSmallPieces_6T/8 54.4 53.4 +1.8%
BM_slicingSmallPieces_6T/64 488 478 +2.0%
BM_slicingSmallPieces_6T/512 21719 18841 +13.3%
BM_slicingSmallPieces_6T/4k 394950 397583 -0.7%
BM_slicingSmallPieces_6T/5k 223080 210148 +5.8%
BM_slicingSmallPieces_8T/2 81.2 80.4 +1.0%
BM_slicingSmallPieces_8T/8 58.1 53.5 +7.9%
BM_slicingSmallPieces_8T/64 489 480 +1.8%
BM_slicingSmallPieces_8T/512 21586 18798 +12.9%
BM_slicingSmallPieces_8T/4k 394592 400165 -1.4%
BM_slicingSmallPieces_8T/5k 219688 208301 +5.2%
BM_slicingSmallPieces_12T/2 80.2 79.8 +0.7%
BM_slicingSmallPieces_12T/8 54.4 53.4 +1.8
BM_slicingSmallPieces_12T/64 488 476 +2.5%
BM_slicingSmallPieces_12T/512 21931 18831 +14.1%
BM_slicingSmallPieces_12T/4k 393962 396541 -0.7%
BM_slicingSmallPieces_12T/5k 218803 207965 +5.0%
2017-01-24 13:55:18 -08:00
Gael Guennebaud
d83db761a2
Add support for std::integral_constant
2017-01-24 16:28:12 +01:00
Gael Guennebaud
bc10201854
Add test for multiple symbols
2017-01-24 16:27:51 +01:00
Gael Guennebaud
ddd83f82d8
Add support for "SymbolicExpr op fix<N>" in C++98/11 mode.
2017-01-24 10:54:42 +01:00
Gael Guennebaud
228fef1b3a
Extended the set of arithmetic operators supported by FixedInt (-,+,*,/,%,&,|)
2017-01-24 10:53:51 +01:00
Gael Guennebaud
bb52f74e62
Add internal doc
2017-01-24 10:13:35 +01:00
Gael Guennebaud
41c523a0ab
Rename fix_t to FixedInt
2017-01-24 09:39:49 +01:00
Gael Guennebaud
ca79c1545a
Add std:: namespace prefix to all (hopefully) instances if size_t/ptrdfiff_t
2017-01-23 22:02:53 +01:00
Gael Guennebaud
4d302a080c
Recover compile-time size from seq(A,B) when A and B are fixed values. (c++11 only)
2017-01-19 20:34:18 +01:00
Gael Guennebaud
54f3fbee24
Exploit fixed values in seq and reverse with C++98 compatibility
2017-01-19 19:57:32 +01:00
Gael Guennebaud
7691723e34
Add support for fixed-value in symbolic expression, c++11 only for now.
2017-01-19 19:25:29 +01:00
Gael Guennebaud
f3ccbe0419
Add a Symbolic::FixedExpr helper expression to make sure the compiler fully optimize the usage of last and end.
2017-01-18 23:16:32 +01:00
Gael Guennebaud
15471432fe
Add a .reverse() member to ArithmeticSequence.
2017-01-18 11:35:27 +01:00
Gael Guennebaud
e4f8dd860a
Add missing operator*
2017-01-18 10:49:01 +01:00
Gael Guennebaud
71e5b71356
Add a get_runtime_value helper to deal with pointer-to-function hack,
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plus some refactoring to make the internals more consistent.
2017-01-17 11:33:57 +01:00
Gael Guennebaud
23bfcfc15f
Add missing overload of get_compile_time for c++98/11
2017-01-17 10:30:21 +01:00
Gael Guennebaud
edff32c2c2
Disambiguate the two versions of fix for doxygen
2017-01-17 10:29:33 +01:00
Gael Guennebaud
4989922be2
Add support for symbolic expressions as arguments of operator()
2017-01-16 22:21:23 +01:00
Gael Guennebaud
12e22a2844
typos in doc
2017-01-16 16:31:19 +01:00
Gael Guennebaud
a9232af845
Introduce a variable_or_fixed<N> proxy returned by fix<N>(val) to pass both a compile-time and runtime fallback value in case N means "runtime".
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This mechanism is used by the seq/seqN functions. The proxy object is immediately converted to pure compile-time (as fix<N>) or pure runtime (i.e., an Index) to avoid redundant template instantiations.
2017-01-16 16:17:01 +01:00
Gael Guennebaud
6e97698161
Introduce a EIGEN_HAS_CXX14 macro
2017-01-16 16:13:37 +01:00
Gael Guennebaud
752bd92ba5
Large code refactoring:
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- generalize some utilities and move them to Meta (size(), array_size())
- move handling of all and single indices to IndexedViewHelper.h
- several cleanup changes
2017-01-11 17:24:02 +01:00
