From 2a1823f59d9233aa60e9d3cbf8ba2bc4e66cb44e Mon Sep 17 00:00:00 2001
From: Nick Curtis <nicholas.curtis@amd.com>
Date: Wed, 16 Jun 2021 14:52:09 -0400
Subject: [PATCH] add a missing CBRT

Change-Id: I5f70816a2b5ac07ba88511cf3bf14017043b5e76
---
 src/KOKKOS/pair_reaxff_kokkos.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/KOKKOS/pair_reaxff_kokkos.cpp b/src/KOKKOS/pair_reaxff_kokkos.cpp
index ef004cf29e..6e8e2958da 100644
--- a/src/KOKKOS/pair_reaxff_kokkos.cpp
+++ b/src/KOKKOS/pair_reaxff_kokkos.cpp
@@ -1416,7 +1416,11 @@ void PairReaxFFKokkos<DeviceType>::operator()(PairReaxFFComputeLJCoulomb<NEIGHFL
            // Coulomb energy/force
            const F_FLOAT shld = paramstwbp(itype,jtype).gamma;
            const F_FLOAT denom1 = rij * rij * rij + shld;
+           #ifdef HIP_OPT_USE_LESS_MATH
+           const F_FLOAT denom3 = cbrt(denom1);
+           #else
            const F_FLOAT denom3 = pow(denom1,0.3333333333333);
+           #endif
            const F_FLOAT ecoul = C_ele * qi*qj*Tap/denom3;
            const F_FLOAT fcoul = C_ele * qi*qj*(dTap-Tap*rij/denom1)/denom3;