From 4c93fb2f90321dab2477eaabe04785100869c073 Mon Sep 17 00:00:00 2001
From: Revathi  Jambunathan
 <41089244+RevathiJambunathan@users.noreply.github.com>
Date: Thu, 6 Aug 2020 06:31:38 -0700
Subject: swap fieldGather and external fields (#1235)

* swap fieldGather and external fields

* clarify EB external on particle for RZ

* swap order and initialize Exp-Bzp for Photons
---
 Source/Particles/RigidInjectedParticleContainer.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'Source/Particles/RigidInjectedParticleContainer.cpp')

diff --git a/Source/Particles/RigidInjectedParticleContainer.cpp b/Source/Particles/RigidInjectedParticleContainer.cpp
index 6cdd99938..1a480aae7 100644
--- a/Source/Particles/RigidInjectedParticleContainer.cpp
+++ b/Source/Particles/RigidInjectedParticleContainer.cpp
@@ -471,10 +471,7 @@ RigidInjectedParticleContainer::PushP (int lev, Real dt,
                 getPosition(ip, xp, yp, zp);
 
                 amrex::ParticleReal Exp = 0._rt, Eyp = 0._rt, Ezp = 0._rt;
-                getExternalE(ip, Exp, Eyp, Ezp);
-
                 amrex::ParticleReal Bxp = 0._rt, Byp = 0._rt, Bzp = 0._rt;
-                getExternalB(ip, Bxp, Byp, Bzp);
 
                 // first gather E and B to the particle positions
                 doGatherShapeN(xp, yp, zp, Exp, Eyp, Ezp, Bxp, Byp, Bzp,
@@ -482,6 +479,8 @@ RigidInjectedParticleContainer::PushP (int lev, Real dt,
                                ex_type, ey_type, ez_type, bx_type, by_type, bz_type,
                                dx_arr, xyzmin_arr, lo, n_rz_azimuthal_modes,
                                nox, galerkin_interpolation);
+                getExternalE(ip, Exp, Eyp, Ezp);
+                getExternalB(ip, Bxp, Byp, Bzp);
 
                 if (do_crr) {
                     amrex::Real qp = q;
-- 
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