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Diffstat (limited to 'Eigen/src/Core/arch/NEON/BlockingSizesLookupTables.h')
| -rw-r--r-- | Eigen/src/Core/arch/NEON/BlockingSizesLookupTables.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/Eigen/src/Core/arch/NEON/BlockingSizesLookupTables.h b/Eigen/src/Core/arch/NEON/BlockingSizesLookupTables.h new file mode 100644 index 000000000..5007c155d --- /dev/null +++ b/Eigen/src/Core/arch/NEON/BlockingSizesLookupTables.h @@ -0,0 +1,110 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2015 Benoit Jacob <benoitjacob@google.com> +// +// This Source Code Form is subject to the terms of the Mozilla +// Public License v. 2.0. If a copy of the MPL was not distributed +// with this file, You can obtain one at http://mozilla.org/MPL/2.0/. + +#ifndef EIGEN_NEON_BLOCKING_SIZES_LOOKUP_TABLES_H +#define EIGEN_NEON_BLOCKING_SIZES_LOOKUP_TABLES_H + +namespace Eigen { +namespace internal { + +/* The following lookup table was generated from measurements on a Nexus 5, + * which has a Qualcomm Krait 400 CPU. This is very representative of current + * 32bit (ARMv7) Android devices. On the other hand, I don't know how + * representative that is outside of these conditions. Accordingly, + * let's only use this lookup table on ARM 32bit on Android for now. + * + * Measurements were single-threaded, with Scalar=float, compiled with + * -mfpu=neon-vfpv4, so the pmadd instruction used was VFMA.F32. + * + * The device was cooled, allowing it to run a the max clock speed throughout. + * This may not be representative of real-world thermal conditions. + * + * The benchmark attempted to flush caches to test cold-cache performance. + */ +#if EIGEN_ARCH_ARM && EIGEN_OS_ANDROID +template<> +struct BlockingSizesLookupTable<float, float> { + static const size_t BaseSize = 16; + static const size_t NumSizes = 8; + static const unsigned short* Data() { + static const unsigned short data[512] = { + 0x444, 0x445, 0x446, 0x447, 0x448, 0x449, 0x447, 0x447, + 0x454, 0x455, 0x456, 0x457, 0x458, 0x459, 0x45a, 0x456, + 0x464, 0x465, 0x466, 0x467, 0x468, 0x469, 0x46a, 0x467, + 0x474, 0x475, 0x476, 0x467, 0x478, 0x479, 0x476, 0x478, + 0x474, 0x475, 0x476, 0x477, 0x478, 0x479, 0x476, 0x476, + 0x474, 0x475, 0x476, 0x477, 0x478, 0x479, 0x496, 0x488, + 0x474, 0x475, 0x476, 0x4a6, 0x496, 0x496, 0x495, 0x4a6, + 0x474, 0x475, 0x466, 0x4a6, 0x497, 0x4a5, 0x496, 0x4a5, + 0x544, 0x545, 0x546, 0x547, 0x548, 0x549, 0x54a, 0x54b, + 0x554, 0x555, 0x556, 0x557, 0x558, 0x559, 0x55a, 0x55b, + 0x564, 0x565, 0x566, 0x567, 0x568, 0x569, 0x56a, 0x56b, + 0x564, 0x565, 0x566, 0x567, 0x568, 0x569, 0x56a, 0x576, + 0x564, 0x565, 0x566, 0x567, 0x568, 0x569, 0x56a, 0x587, + 0x564, 0x565, 0x566, 0x567, 0x596, 0x596, 0x596, 0x597, + 0x574, 0x565, 0x566, 0x596, 0x596, 0x5a6, 0x5a6, 0x5a6, + 0x564, 0x565, 0x5a6, 0x596, 0x5a6, 0x5a6, 0x5a6, 0x5a6, + 0x644, 0x645, 0x646, 0x647, 0x648, 0x649, 0x64a, 0x64b, + 0x644, 0x655, 0x656, 0x657, 0x658, 0x659, 0x65a, 0x65b, + 0x664, 0x665, 0x666, 0x667, 0x668, 0x669, 0x65a, 0x667, + 0x654, 0x665, 0x676, 0x677, 0x678, 0x679, 0x67a, 0x675, + 0x684, 0x675, 0x686, 0x687, 0x688, 0x688, 0x687, 0x686, + 0x664, 0x685, 0x666, 0x677, 0x697, 0x696, 0x697, 0x697, + 0x664, 0x665, 0x696, 0x696, 0x685, 0x6a6, 0x696, 0x696, + 0x664, 0x675, 0x686, 0x696, 0x6a6, 0x696, 0x696, 0x696, + 0x744, 0x745, 0x746, 0x747, 0x748, 0x749, 0x74a, 0x747, + 0x754, 0x755, 0x756, 0x757, 0x758, 0x759, 0x75a, 0x757, + 0x764, 0x765, 0x756, 0x767, 0x768, 0x759, 0x75a, 0x766, + 0x744, 0x755, 0x766, 0x777, 0x768, 0x759, 0x778, 0x777, + 0x744, 0x745, 0x766, 0x777, 0x788, 0x786, 0x786, 0x788, + 0x754, 0x755, 0x766, 0x787, 0x796, 0x796, 0x787, 0x796, + 0x684, 0x695, 0x696, 0x6a6, 0x795, 0x786, 0x795, 0x796, + 0x684, 0x695, 0x696, 0x795, 0x786, 0x796, 0x795, 0x796, + 0x844, 0x845, 0x846, 0x847, 0x848, 0x849, 0x848, 0x848, + 0x844, 0x855, 0x846, 0x847, 0x848, 0x849, 0x855, 0x857, + 0x844, 0x845, 0x846, 0x857, 0x848, 0x859, 0x866, 0x865, + 0x844, 0x855, 0x846, 0x847, 0x878, 0x859, 0x877, 0x877, + 0x844, 0x855, 0x846, 0x867, 0x886, 0x887, 0x885, 0x886, + 0x784, 0x785, 0x786, 0x877, 0x897, 0x885, 0x896, 0x896, + 0x684, 0x695, 0x686, 0x886, 0x885, 0x885, 0x886, 0x896, + 0x694, 0x6a5, 0x6a6, 0x885, 0x885, 0x886, 0x896, 0x896, + 0x944, 0x945, 0x946, 0x947, 0x948, 0x847, 0x847, 0x848, + 0x954, 0x855, 0x856, 0x947, 0x858, 0x857, 0x858, 0x858, + 0x944, 0x945, 0x946, 0x867, 0x948, 0x866, 0x867, 0x867, + 0x944, 0x975, 0x976, 0x877, 0x877, 0x877, 0x877, 0x877, + 0x784, 0x785, 0x886, 0x887, 0x886, 0x887, 0x887, 0x887, + 0x784, 0x785, 0x786, 0x796, 0x887, 0x897, 0x896, 0x896, + 0x684, 0x695, 0x6a6, 0x886, 0x886, 0x896, 0x896, 0x896, + 0x6a4, 0x6a5, 0x696, 0x896, 0x886, 0x896, 0x896, 0x896, + 0xa44, 0xa45, 0xa46, 0xa47, 0x847, 0x848, 0x847, 0x848, + 0xa44, 0xa45, 0x856, 0x857, 0x857, 0x857, 0x857, 0x857, + 0xa44, 0xa65, 0x866, 0x867, 0x867, 0x867, 0x867, 0x867, + 0x774, 0x875, 0x876, 0x877, 0x877, 0x877, 0x877, 0x877, + 0x784, 0x785, 0x886, 0x887, 0x887, 0x887, 0x887, 0x887, + 0x784, 0x785, 0x786, 0x787, 0x887, 0x896, 0x897, 0x897, + 0x684, 0x6a5, 0x696, 0x886, 0x886, 0x896, 0x896, 0x896, + 0x684, 0x6a5, 0x6a5, 0x886, 0x886, 0x896, 0x896, 0x896, + 0xb44, 0x845, 0x846, 0x847, 0x847, 0x945, 0x846, 0x946, + 0xb54, 0x855, 0x856, 0x857, 0x857, 0x856, 0x857, 0x856, + 0x864, 0x865, 0x866, 0x867, 0x867, 0x866, 0x866, 0x867, + 0x864, 0x875, 0x876, 0x877, 0x877, 0x877, 0x877, 0x877, + 0x784, 0x885, 0x886, 0x787, 0x887, 0x887, 0x887, 0x887, + 0x784, 0x785, 0x786, 0x796, 0x886, 0x897, 0x897, 0x897, + 0x684, 0x695, 0x696, 0x886, 0x896, 0x896, 0x896, 0x896, + 0x684, 0x685, 0x696, 0xb57, 0x896, 0x896, 0x896, 0x896 + }; + return data; + } +}; +#endif + +} +} + +#endif // EIGEN_NEON_BLOCKING_SIZES_LOOKUP_TABLES_H |