From 7ed56dd5808d483ab8e294f36e3ecf8e8ddd84f1 Mon Sep 17 00:00:00 2001
From: Mike Kelly <mike.kelly@arm.com>
Date: Wed, 30 Sep 2020 20:22:56 +0100
Subject: MLCE-233 Added ability to enable fast_math through the NNAPI driver

 * Added -a command line option to enable fast_math on Neon/CL when launching the NNAPI driver
 * The invocation will look something like:
   /vendor/bin/hw/android.hardware.neuralnetworks@1.3-service-armnn -v -c GpuAcc -n arm-armnn -a
 * Enabling fast_math may cause an increase in VTS or CTS test failures due to a change in precision

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Change-Id: Ifd8931f95efd65d3ae3aca9d9d61bd381e4e24a5
---
 1.2/ArmnnDriverImpl.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to '1.2')

diff --git a/1.2/ArmnnDriverImpl.cpp b/1.2/ArmnnDriverImpl.cpp
index 4571fe0e..6d713e06 100644
--- a/1.2/ArmnnDriverImpl.cpp
+++ b/1.2/ArmnnDriverImpl.cpp
@@ -130,6 +130,17 @@ Return<V1_0::ErrorStatus> ArmnnDriverImpl::prepareArmnnModel_1_2(
     armnn::OptimizerOptions OptOptions;
     OptOptions.m_ReduceFp32ToFp16 = float32ToFloat16;
 
+    armnn::BackendOptions gpuAcc("GpuAcc",
+    {
+        { "FastMathEnabled", options.IsFastMathEnabled() }
+    });
+    armnn::BackendOptions cpuAcc("CpuAcc",
+    {
+        { "FastMathEnabled", options.IsFastMathEnabled() }
+    });
+    OptOptions.m_ModelOptions.push_back(gpuAcc);
+    OptOptions.m_ModelOptions.push_back(cpuAcc);
+
     std::vector<std::string> errMessages;
     try
     {
-- 
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