From 90cfd121bb409cd477293a54339adb2bf913a169 Mon Sep 17 00:00:00 2001
From: Carlo Camilloni <carlo.camilloni@gmail.com>
Date: Wed, 4 Jun 2014 15:50:00 +0200
Subject: [PATCH] PATHMSD: documentation about the PDB file

---
 src/colvar/PathMSD.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/colvar/PathMSD.cpp b/src/colvar/PathMSD.cpp
index 63db7e32d..fd93c8c82 100644
--- a/src/colvar/PathMSD.cpp
+++ b/src/colvar/PathMSD.cpp
@@ -51,6 +51,8 @@ note that NEIGH_STRIDE=4 NEIGH_SIZE=8 control the neighborlist parameter (option
 recommended for performance) and states that the neighbor list will be calculated every 4
 timesteps and consider only the closest 8 member to the actual md snapshots.
 
+In the REFERENCE PDB file the frames must be separated either using END or ENDMDL.
+
 \note
 The implementation of this collective variable and of \ref PROPERTYMAP
 is shared, as well as most input options.
-- 
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