1 files changed, 12 insertions, 12 deletions
diff --git a/Source/Parallelization/WarpXComm.cpp b/Source/Parallelization/WarpXComm.cpp
index cee53031c..396b0f24b 100644
--- a/Source/Parallelization/WarpXComm.cpp
+++ b/Source/Parallelization/WarpXComm.cpp
@@ -473,7 +473,7 @@ void WarpX::UpdateCurrentNodalToStag (amrex::MultiFab& dst, amrex::MultiFab cons
 }
 
 void
-WarpX::FillBoundaryB (IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryB (IntVect ng, std::optional<bool> nodal_sync)
 {
     for (int lev = 0; lev <= finest_level; ++lev)
     {
@@ -482,7 +482,7 @@ WarpX::FillBoundaryB (IntVect ng, const bool nodal_sync)
 }
 
 void
-WarpX::FillBoundaryE (IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryE (IntVect ng, std::optional<bool> nodal_sync)
 {
     for (int lev = 0; lev <= finest_level; ++lev)
     {
@@ -491,7 +491,7 @@ WarpX::FillBoundaryE (IntVect ng, const bool nodal_sync)
 }
 
 void
-WarpX::FillBoundaryF (IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryF (IntVect ng, std::optional<bool> nodal_sync)
 {
     for (int lev = 0; lev <= finest_level; ++lev)
     {
@@ -500,7 +500,7 @@ WarpX::FillBoundaryF (IntVect ng, const bool nodal_sync)
 }
 
 void
-WarpX::FillBoundaryG (IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryG (IntVect ng, std::optional<bool> nodal_sync)
 {
     for (int lev = 0; lev <= finest_level; ++lev)
     {
@@ -528,14 +528,14 @@ WarpX::FillBoundaryE_avg (IntVect ng)
 
 
 void
-WarpX::FillBoundaryE (int lev, IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryE (int lev, IntVect ng, std::optional<bool> nodal_sync)
 {
     FillBoundaryE(lev, PatchType::fine, ng, nodal_sync);
     if (lev > 0) FillBoundaryE(lev, PatchType::coarse, ng, nodal_sync);
 }
 
 void
-WarpX::FillBoundaryE (const int lev, const PatchType patch_type, const amrex::IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryE (const int lev, const PatchType patch_type, const amrex::IntVect ng, std::optional<bool> nodal_sync)
 {
     std::array<amrex::MultiFab*,3> mf;
     amrex::Periodicity period;
@@ -585,14 +585,14 @@ WarpX::FillBoundaryE (const int lev, const PatchType patch_type, const amrex::In
 }
 
 void
-WarpX::FillBoundaryB (int lev, IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryB (int lev, IntVect ng, std::optional<bool> nodal_sync)
 {
     FillBoundaryB(lev, PatchType::fine, ng, nodal_sync);
     if (lev > 0) FillBoundaryB(lev, PatchType::coarse, ng, nodal_sync);
 }
 
 void
-WarpX::FillBoundaryB (const int lev, const PatchType patch_type, const amrex::IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryB (const int lev, const PatchType patch_type, const amrex::IntVect ng, std::optional<bool> nodal_sync)
 {
     std::array<amrex::MultiFab*,3> mf;
     amrex::Periodicity period;
@@ -747,14 +747,14 @@ WarpX::FillBoundaryB_avg (int lev, PatchType patch_type, IntVect ng)
 }
 
 void
-WarpX::FillBoundaryF (int lev, IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryF (int lev, IntVect ng, std::optional<bool> nodal_sync)
 {
     FillBoundaryF(lev, PatchType::fine, ng, nodal_sync);
     if (lev > 0) FillBoundaryF(lev, PatchType::coarse, ng, nodal_sync);
 }
 
 void
-WarpX::FillBoundaryF (int lev, PatchType patch_type, IntVect ng, const bool nodal_sync)
+WarpX::FillBoundaryF (int lev, PatchType patch_type, IntVect ng, std::optional<bool> nodal_sync)
 {
     if (patch_type == PatchType::fine)
     {
@@ -788,7 +788,7 @@ WarpX::FillBoundaryF (int lev, PatchType patch_type, IntVect ng, const bool noda
     }
 }
 
-void WarpX::FillBoundaryG (int lev, IntVect ng, const bool nodal_sync)
+void WarpX::FillBoundaryG (int lev, IntVect ng, std::optional<bool> nodal_sync)
 {
     FillBoundaryG(lev, PatchType::fine, ng, nodal_sync);
 
@@ -798,7 +798,7 @@ void WarpX::FillBoundaryG (int lev, IntVect ng, const bool nodal_sync)
     }
 }
 
-void WarpX::FillBoundaryG (int lev, PatchType patch_type, IntVect ng, const bool nodal_sync)
+void WarpX::FillBoundaryG (int lev, PatchType patch_type, IntVect ng, std::optional<bool> nodal_sync)
 {
     if (patch_type == PatchType::fine)
     {