From f6d71886157edbe15880e437df34f5f57149b129 Mon Sep 17 00:00:00 2001
From: Quadro <Peter Boyle>
Date: Tue, 25 May 2021 18:13:37 -0400
Subject: [PATCH] GetDoubledGaugeField useful for mixed precision or generally
 retrieving the double stored gauge field

---
 Grid/qcd/action/fermion/FermionOperator.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Grid/qcd/action/fermion/FermionOperator.h b/Grid/qcd/action/fermion/FermionOperator.h
index 0f379d30..16fcd37a 100644
--- a/Grid/qcd/action/fermion/FermionOperator.h
+++ b/Grid/qcd/action/fermion/FermionOperator.h
@@ -140,6 +140,9 @@ public:
   // Updates gauge field during HMC
   ///////////////////////////////////////////////
   virtual void ImportGauge(const GaugeField & _U)=0;
+  virtual DoubledGaugeField &GetDoubledGaugeField(void)  =0;
+  virtual DoubledGaugeField &GetDoubledGaugeFieldE(void)  =0;
+  virtual DoubledGaugeField &GetDoubledGaugeFieldO(void)  =0;
 
   //////////////////////////////////////////////////////////////////////
   // Conserved currents, either contract at sink or insert sequentially.