Merge branch release-2016

[alexxy/gromacs.git] / src / gromacs / mdlib / update.cpp

diff --git a/src/gromacs/mdlib/update.cpp b/src/gromacs/mdlib/update.cpp
index 2caf4bcb2f69457e63bbd441f571e6d6560d553e..0f1374b73ec07ae1e299517380eea288ea843209 100644 (file)
--- a/src/gromacs/mdlib/update.cpp
+++ b/src/gromacs/mdlib/update.cpp
@@ -2057,7 +2057,7 @@ extern gmx_bool update_randomize_velocities(t_inputrec *ir, gmx_int64_t step, co
 
     /* proceed with andersen if 1) it's fixed probability per
        particle andersen or 2) it's massive andersen and it's tau_t/dt */
-    if ((ir->etc == etcANDERSEN) || do_per_step(step, (int)(1.0/rate)))
+    if ((ir->etc == etcANDERSEN) || do_per_step(step, static_cast<int>(1.0/rate + 0.5)))
     {
         andersen_tcoupl(ir, step, cr, md, state, rate,
                         upd->sd->randomize_group, upd->sd->boltzfac);