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 --- utils/TypePrinter.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'utils') diff --git a/utils/TypePrinter.h b/utils/TypePrinter.h index fe7f13a19e..21f9c0849c 100644 --- a/utils/TypePrinter.h +++ b/utils/TypePrinter.h @@ -628,6 +628,9 @@ inline ::std::ostream &operator<<(::std::ostream &os, const ActivationLayerInfo: case ActivationLayerInfo::ActivationFunction::HARD_SWISH: os << "HARD_SWISH"; break; + case ActivationLayerInfo::ActivationFunction::GELU: + os << "GELU"; + break; default: ARM_COMPUTE_ERROR("NOT_SUPPORTED!"); -- cgit v1.2.1