From 926f502ca731fa49bcdf949408ce25728616e5f2 Mon Sep 17 00:00:00 2001 From: Murray Kornelsen Date: Wed, 13 Jul 2022 21:22:39 -0400 Subject: Adding GELU activation OpenCL implementation uses built in erf. NEON implementation requires new vectorized erf. Uses the following approximation: erf(x) = 1 - 1 / (1 + a1x + a2x^2 + a3x^3 + a4x^4)^4 a1 = 0.278393, a2 = 0.230389, a3 = 0.000972, a4 = 0.078108 From https://en.wikipedia.org/wiki/Error_function#Numerical_approximations Signed-off-by: Murray Kornelsen Change-Id: I2d3964b2c26a4334166b17135f9104bc6324fad2 Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/7921 Reviewed-by: Viet-Hoa Do Reviewed-by: Pablo Marquez Tello Comments-Addressed: Arm Jenkins Comments-Addressed: Pablo Marquez Tello Tested-by: Arm Jenkins Benchmark: Arm Jenkins --- tests/datasets/ActivationFunctionsDataset.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'tests/datasets/ActivationFunctionsDataset.h') diff --git a/tests/datasets/ActivationFunctionsDataset.h b/tests/datasets/ActivationFunctionsDataset.h index 1f3313c476..85febd4df4 100644 --- a/tests/datasets/ActivationFunctionsDataset.h +++ b/tests/datasets/ActivationFunctionsDataset.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2017-2019 Arm Limited. + * Copyright (c) 2017-2019, 2022 Arm Limited. * * SPDX-License-Identifier: MIT * @@ -53,7 +53,8 @@ public: ActivationLayerInfo::ActivationFunction::SQRT, ActivationLayerInfo::ActivationFunction::SQUARE, ActivationLayerInfo::ActivationFunction::TANH, - ActivationLayerInfo::ActivationFunction::IDENTITY + ActivationLayerInfo::ActivationFunction::IDENTITY, + ActivationLayerInfo::ActivationFunction::GELU, }) { } -- cgit v1.2.1