From 4aeeabef098633c699282887c7bbde953fa2bc2c Mon Sep 17 00:00:00 2001
From: Axel Huebl <axel.huebl@plasma.ninja>
Date: Tue, 30 Jan 2024 11:02:08 -0800
Subject: [PATCH] Particle Copy Plan: Default Vals (#3729)

## Summary

Valgrind finds those to be uninitialized in GPU runs with 1 MPI rank.

## Additional background

## Checklist

The proposed changes:
- [x] fix a bug or incorrect behavior in AMReX
- [ ] add new capabilities to AMReX
- [ ] changes answers in the test suite to more than roundoff level
- [ ] are likely to significantly affect the results of downstream AMReX
users
- [ ] include documentation in the code and/or rst files, if appropriate
---
 Src/Particle/AMReX_ParticleCommunication.H | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Src/Particle/AMReX_ParticleCommunication.H b/Src/Particle/AMReX_ParticleCommunication.H
index b041bcfdcbb..9cc7a2cef95 100644
--- a/Src/Particle/AMReX_ParticleCommunication.H
+++ b/Src/Particle/AMReX_ParticleCommunication.H
@@ -91,8 +91,8 @@ struct ParticleCopyPlan
     Vector<int> m_rcv_box_pids;
     Vector<int> m_rcv_box_levs;
 
-    Long m_NumSnds;
-    int m_nrcvs;
+    Long m_NumSnds = 0;
+    int m_nrcvs = 0;
     mutable Vector<MPI_Status> m_build_stats;
     mutable Vector<MPI_Request> m_build_rreqs;