| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Thu Aug 20 21:14:32 2020 +0200 Timestamp: 1597950872 Set Use NNUE by default to true Since the initial stages of the merge, progress has been made so that this seems the best option now: * NNUE is clearly stronger on most relevant hardware and time controls * All of our CI and testing infrastructure has been adjusted * The default net is easy to get (further ideas #3030) fixes https://github.com/official-stockfish/Stockfish/issues/2861 closes https://github.com/official-stockfish/Stockfish/pull/3033 No functional change. see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Thu Aug 20 21:13:07 2020 +0200 Timestamp: 1597950787 Send error message as an UCI info string some GUIs do not show the error message when the engine terminates in the no-net case, as it is send to cerr. Instead send it as an info string, which the GUI will more likely display. closes https://github.com/official-stockfish/Stockfish/pull/3031 No functional change. see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: SFisGOD
Date: Thu Aug 20 21:12:37 2020 +0200 Timestamp: 1597950757 Reintroduce last captures extension STC: LLR: 2.93 (-2.94,2.94) {-0.50,1.50} Total: 34840 W: 3834 L: 3682 D: 27324 Elo +1.52 Ptnml(0-2): 153, 2767, 11455, 2865, 180 https://tests.stockfishchess.org/tests/view/5f3bb380b38d442594aabefc LTC: LLR: 2.95 (-2.94,2.94) {0.25,1.75} Total: 15832 W: 890 L: 776 D: 14166 Elo +2.50 Ptnml(0-2): 17, 669, 6429, 785, 16 https://tests.stockfishchess.org/tests/view/5f3c46a0a95672ddd56c632a closes https://github.com/official-stockfish/Stockfish/pull/3028 see also https://github.com/official-stockfish/Stockfish/pull/3020 Bench: 4348811 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: syzygy1
Date: Tue Aug 18 20:15:07 2020 +0200 Timestamp: 1597774507 Expanded support for x86-32 architectures. add new ARCH targets x86-32-sse41-popcnt > x86 32-bit with sse41 and popcnt support x86-32-sse2 > x86 32-bit with sse2 support x86-32 > x86 32-bit generic (with mmx and sse support) retire x86-32-old (use general-32) closes https://github.com/official-stockfish/Stockfish/pull/3022 No functional change. see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Tue Aug 18 19:57:30 2020 +0200 Timestamp: 1597773450 Better error message on missing curl/wget provide clean error/warning message for missing curl/wget, sha256sum/shasum fixes https://github.com/official-stockfish/Stockfish/issues/3025 closes https://github.com/official-stockfish/Stockfish/pull/3026 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Tue Aug 18 08:49:06 2020 +0200 Timestamp: 1597733346 Fix Makefile typo remove stray quote, shown with `make help` No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: mstembera
Date: Tue Aug 18 08:36:57 2020 +0200 Timestamp: 1597732617 Fallback to NNUE If the classical eval ends up much smaller than estimated fall back to NNUE. Also use multiply instead of divide for the threshold comparison for smoother transitions without rounding. STC https://tests.stockfishchess.org/tests/view/5f3a5011b38d442594aabdfe LLR: 2.96 (-2.94,2.94) {-0.50,1.50} Total: 57352 W: 6325 L: 6135 D: 44892 Elo +1.15 Ptnml(0-2): 277, 4748, 18482, 4846, 323 LTC https://tests.stockfishchess.org/tests/view/5f3aee9db38d442594aabe82 LLR: 2.95 (-2.94,2.94) {0.25,1.75} Total: 16232 W: 897 L: 781 D: 14554 Elo +2.48 Ptnml(0-2): 19, 679, 6616, 771, 31 closes https://github.com/official-stockfish/Stockfish/pull/3023 bench: 4026216 ----- Recommended net: https://tests.stockfishchess.org/api/nn/nn-82215d0fd0df.nnue see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Unai Corzo
Date: Tue Aug 18 08:33:42 2020 +0200 Timestamp: 1597732422 Remove last captures extension STC https://tests.stockfishchess.org/tests/view/5f395657e98b6c64b3df41dd LLR: 2.95 (-2.94,2.94) {-1.50,0.50} Total: 144664 W: 15426 L: 15537 D: 113701 Elo -0.27 Ptnml(0-2): 612, 11341, 48537, 11230, 612 LTC https://tests.stockfishchess.org/tests/view/5f3a2ec7b38d442594aabdd7 LLR: 2.96 (-2.94,2.94) {-1.50,0.50} Total: 22728 W: 1161 L: 1146 D: 20421 Elo +0.23 Ptnml(0-2): 21, 960, 9388, 973, 22 closes https://github.com/official-stockfish/Stockfish/pull/3020 bench: 3832662 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: VoyagerOne
Date: Tue Aug 18 08:29:42 2020 +0200 Timestamp: 1597732182 Remove history bonus from Eval STC: LLR: 2.92 (-2.94,2.94) {-1.50,0.50} Total: 26776 W: 2787 L: 2725 D: 21264 Elo +0.80 https://tests.stockfishchess.org/tests/view/5f39d6beb38d442594aabd9b LTC: LLR: 2.93 (-2.94,2.94) {-1.50,0.50} Total: 12968 W: 635 L: 608 D: 11725 Elo +0.72 https://tests.stockfishchess.org/tests/view/5f39decfb38d442594aabda7 closes https://github.com/official-stockfish/Stockfish/pull/3019 Bench: 4335100 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: notruck
Date: Tue Aug 18 08:19:22 2020 +0200 Timestamp: 1597731562 Support building for Android using NDK The easiest way to use the NDK in conjunction with this Makefile (tested on linux-x86_64): 1. Download the latest NDK (r21d) from Google from https://developer.android.com/ndk/downloads 2. Place and unzip the NDK in $HOME/ndk folder 3. Export the path variable e.g., `export PATH=$PATH:$HOME/ndk/android-ndk-r21d/toolchains/llvm/prebuilt/linux-x86_64/bin` 4. cd to your Stockfish/src dir 5. Issue `make -j ARCH=armv8 COMP=ndk build` (use `ARCH=armv7` or `ARCH=armv7-neon` for older CPUs) 6. Optionally `make -j ARCH=armv8 COMP=ndk strip` 7. That's all. Enjoy! Improves support from Raspberry Pi (incomplete?) and compiling on arm in general closes https://github.com/official-stockfish/Stockfish/pull/3015 fixes https://github.com/official-stockfish/Stockfish/issues/2860 fixes https://github.com/official-stockfish/Stockfish/issues/2641 Support is still fragile as we're missing CI on these targets. Nevertheless tested with: ```bash # build crosses from ubuntu 20.04 on x86 to various arch/OS combos # tested with suitable packages installed # (build-essentials, mingw-w64, g++-arm-linux-gnueabihf, NDK (r21d) from google) # cross to Android export PATH=$HOME/ndk/android-ndk-r21d/toolchains/llvm/prebuilt/linux-x86_64/bin:$PATH make clean && make -j build ARCH=armv7 COMP=ndk && make -j build ARCH=armv7 COMP=ndk strip make clean && make -j build ARCH=armv7-neon COMP=ndk && make -j build ARCH=armv7-neon COMP=ndk strip make clean && make -j build ARCH=armv8 COMP=ndk && make -j build ARCH=armv8 COMP=ndk strip # cross to Raspberry Pi make clean && make -j build ARCH=armv7 COMP=gcc COMPILER=arm-linux-gnueabihf-g++ make clean && make -j build ARCH=armv7-neon COMP=gcc COMPILER=arm-linux-gnueabihf-g++ # cross to Windows make clean && make -j build ARCH=x86-64-modern COMP=mingw ``` No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Unai Corzo
Date: Mon Aug 17 12:27:35 2020 +0200 Timestamp: 1597660055 Simplify away the passed pawn extension STC https://tests.stockfishchess.org/tests/view/5f3955f0e98b6c64b3df41d7 LLR: 2.96 (-2.94,2.94) {-1.50,0.50} Total: 31992 W: 3611 L: 3548 D: 24833 Elo +0.68 Ptnml(0-2): 174, 2658, 10273, 2713, 178 LTC https://tests.stockfishchess.org/tests/view/5f399e41e98b6c64b3df4210 LLR: 3.01 (-2.94,2.94) {-1.50,0.50} Total: 29568 W: 1488 L: 1480 D: 26600 Elo +0.09 Ptnml(0-2): 40, 1272, 12142, 1300, 30 closes https://github.com/official-stockfish/Stockfish/pull/3017 bench: 3844671 ----- Recommended net: https://tests.stockfishchess.org/api/nn/nn-82215d0fd0df.nnue see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Stéphane Nicolet
Date: Mon Aug 17 12:15:57 2020 +0200 Timestamp: 1597659357 Reformat code in little-endian patch Reformat code and rename the function to "read_little_endian()" in the recent commit by Ronald de Man for support of big endian systems. closes https://github.com/official-stockfish/Stockfish/pull/3016 No functional change ----- Recommended net: https://tests.stockfishchess.org/api/nn/nn-82215d0fd0df.nnue see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Sun Aug 16 21:10:26 2020 +0200 Timestamp: 1597605026 Add further targets to travis testing general-32, general-64 and help closes https://github.com/official-stockfish/Stockfish/pull/3014 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: syzygy1
Date: Sun Aug 16 21:10:26 2020 +0200 Timestamp: 1597605026 Assume network file is in little-endian byte order This patch fixes the byte order when reading 16- and 32-bit values from the network file on a big-endian machine. Bytes are ordered in read_le() using unsigned arithmetic, which doesn't need tricks to determine the endianness of the machine. Unfortunately the compiler doesn't seem to be able to optimise the ordering operation, but reading in the weights is not a time-critical operation and the extra time it takes should not be noticeable. Big endian systems are still untested with NNUE. fixes #3007 closes https://github.com/official-stockfish/Stockfish/pull/3009 No functional change. see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Daylen Yang
Date: Sun Aug 16 21:10:26 2020 +0200 Timestamp: 1597605026 Display NEON in compiler string if NEON intrinsics are being used and USE_NEON is defined. closes https://github.com/official-stockfish/Stockfish/pull/3008 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Sun Aug 16 08:20:32 2020 +0200 Timestamp: 1597558832 Use NNUE more for fortresses Increases the use of NNUE evaluation in positions without captures/pawn moves, by increasing the NNUEThreshold threshold with rule50_count. This patch will force Stockfish to use NNUE eval more and more in materially unbalanced positions, when it seems that the classical eval is struggling to win and only manages to shuffle. This will ask the (slower) NNUE eval to double-check the potential fortress branches of the search tree, but only when necessary. passed STC: https://tests.stockfishchess.org/tests/view/5f36f1bf11a9b1a1dbf192d8 LLR: 2.93 (-2.94,2.94) {-0.50,1.50} Total: 51824 W: 5836 L: 5653 D: 40335 Elo +1.23 Ptnml(0-2): 264, 4356, 16512, 4493, 287 passed LTC: https://tests.stockfishchess.org/tests/view/5f37836111a9b1a1dbf1936d LLR: 2.93 (-2.94,2.94) {0.25,1.75} Total: 29768 W: 1747 L: 1590 D: 26431 Elo +1.83 Ptnml(0-2): 33, 1347, 11977, 1484, 43 closes https://github.com/official-stockfish/Stockfish/pull/3011 Bench: 4173967 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: mstembera
Date: Fri Aug 14 16:39:52 2020 +0200 Timestamp: 1597415992 Try to match relative magnitude of NNUE eval to classical The idea is that since we are mixing NNUE and classical evals matching their magnitudes closer allows for better comparisons. STC https://tests.stockfishchess.org/tests/view/5f35a65411a9b1a1dbf18e2b LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 9840 W: 1150 L: 1027 D: 7663 Elo +4.34 Ptnml(0-2): 49, 772, 3175, 855, 69 LTC https://tests.stockfishchess.org/tests/view/5f35bcbe11a9b1a1dbf18e47 LLR: 2.93 (-2.94,2.94) {0.25,1.75} Total: 44424 W: 2492 L: 2294 D: 39638 Elo +1.55 Ptnml(0-2): 42, 2015, 17915, 2183, 57 also corrects the location to clamp the evaluation (non-function on bench). closes https://github.com/official-stockfish/Stockfish/pull/3003 bench: 3905447 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Miguel Lahoz
Date: Fri Aug 14 16:31:18 2020 +0200 Timestamp: 1597415478 Also dampen NNUE eval with 50 move rule Move the existing dampening function last so that NNUE evaluations are also handled as we approach the 50 move rule. STC: LLR: 2.95 (-2.94,2.94) {-0.50,1.50} Total: 4792 W: 695 L: 561 D: 3536 Elo +9.72 Ptnml(0-2): 19, 420, 1422, 478, 57 https://tests.stockfishchess.org/tests/view/5f3164179081672066537534 LTC: LLR: 8.62 (-2.94,2.94) {0.25,1.75} Total: 286744 W: 18494 L: 17430 D: 250820 Elo +1.29 Ptnml(0-2): 418, 14886, 111745, 15860, 463 https://tests.stockfishchess.org/tests/view/5f316b039081672066537541 closes https://github.com/official-stockfish/Stockfish/pull/3004 Bench: 4001800 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Fri Aug 14 16:20:42 2020 +0200 Timestamp: 1597414842 Verify SHA of downloaded net file check SHA of the available and downloaded file. Document the format requirement on the default net. Also allow curl to make possibly insecure connections, as needed for old curl. fixes https://github.com/official-stockfish/Stockfish/issues/2998 closes https://github.com/official-stockfish/Stockfish/pull/3000 No functional change. see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Stéphane Nicolet
Date: Fri Aug 14 16:18:50 2020 +0200 Timestamp: 1597414730 Clean-up Makefile help Do not show the details of the default architecture for a simple "make help" invocation, as the details are most likely to confuse beginners. Instead we make it clear which architecture is the default and put an example at the end of the Makefile as an incentative to use "make help ARCH=blah" to discover the flags used by the different architectures. ``` make help make help ARCH=x86-64-ssse3 ``` Also clean-up and modernize a bit the Makefile examples while at it. closes https://github.com/official-stockfish/Stockfish/pull/2996 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Sergio Vieri
Date: Thu Aug 13 07:50:52 2020 +0200 Timestamp: 1597297852 Update default net to nn-82215d0fd0df.nnue Net created at: 20200812-2257 passed STC: https://tests.stockfishchess.org/tests/view/5f340ca99e5f2effc089da17 LLR: 2.96 (-2.94,2.94) {-0.50,1.50} Total: 5744 W: 756 L: 627 D: 4361 Elo +7.80 Ptnml(0-2): 28, 485, 1731, 586, 42 passed LTC: https://tests.stockfishchess.org/tests/view/5f341eba9e5f2effc089da23 LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 17136 W: 1041 L: 917 D: 15178 Elo +2.51 Ptnml(0-2): 13, 813, 6807, 907, 28 closes https://github.com/official-stockfish/Stockfish/pull/2992 Bench: 3935117 see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Thu Aug 13 07:41:06 2020 +0200 Timestamp: 1597297266 Output the SSE2 flag in compiler_info was missing in the list of outputs, slightly reorder flags. explicitly add -msse2 if USE_SSE2 (is implicit already, -msse -m64). closes https://github.com/official-stockfish/Stockfish/pull/2990 No functional change. see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: mstembera
Date: Thu Aug 13 07:39:52 2020 +0200 Timestamp: 1597297192 Add support for VNNI Adds support for Vector Neural Network Instructions (avx512), as available on Intel Cascade Lake The _mm512_dpbusd_epi32() intrinsic (vpdpbusd instruction) is taylor made for NNUE. on a cascade lake CPU (AWS C5.24x.large, gcc 10) NNUE eval is at roughly 78% nps of classical (single core test) bench 1024 1 24 default depth: target classical NNUE ratio vnni 2207232 1725987 78.20 avx512 2216789 1671734 75.41 avx2 2194006 1611263 73.44 modern 2185001 1352469 61.90 closes https://github.com/official-stockfish/Stockfish/pull/2987 No functional change see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Daylen Yang
Date: Wed Aug 12 07:49:36 2020 +0200 Timestamp: 1597211376 Use posix_memalign for Apple Silicon instead of _mm_malloc fails to build on that target, because of missing Intel Intrinsics. macOS has posix_memalign() since ~2014 so we can simplify the code and just use that for all Apple platforms. closes https://github.com/official-stockfish/Stockfish/pull/2985 No functional change. see source |
| Windows x64 for Haswell CPUs Windows x64 for modern computers + AVX2 Windows x64 for modern computers Windows x64 + SSSE3 Windows x64 Windows 32 Linux x64 for Haswell CPUs Linux x64 for modern computers + AVX2 Linux x64 for modern computers Linux x64 + SSSE3 Linux x64 | Author: Joost VandeVondele
Date: Tue Aug 11 23:35:02 2020 +0200 Timestamp: 1597181702 Restrict avx2 hack to windows target this workaround is possibly rather a windows & gcc specific problem. See e.g. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54412#c25 on Linux with gcc 8 this patch brings roughly a 8% speedup. However, probably needs some testing in the wild. includes a workaround for an old msys make (3.81) installation (fixes #2984) No functional change see source |