From feb500b52684965dd398acd80e78de35188f1d4a Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Thu, 22 Jun 2017 19:17:41 -0400
Subject: [PATCH] reword the kspace_modify fftbench keyword docs to reflect the
current state (i.e. off by default) of code
---
doc/src/kspace_modify.txt | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/doc/src/kspace_modify.txt b/doc/src/kspace_modify.txt
index 66091f4973..6d27bb7076 100644
--- a/doc/src/kspace_modify.txt
+++ b/doc/src/kspace_modify.txt
@@ -219,10 +219,10 @@ instead of using the virial equation. This option cannot be used to access
individual components of the pressure tensor, to compute per-atom virial,
or with suffix kspace/pair styles of MSM, like OMP or GPU.
-The {fftbench} keyword applies only to PPPM. It is on by default. If
-this option is turned off, LAMMPS will not take the time at the end
-of a run to give FFT benchmark timings, and will finish a few seconds
-faster than it would if this option were on.
+The {fftbench} keyword applies only to PPPM. It is off by default. If
+this option is turned on, LAMMPS will perform a short FFT benchmark
+computation and report its timings, and will thus finish a some seconds
+later than it would if this option were off.
The {collective} keyword applies only to PPPM. It is set to {no} by
default, except on IBM BlueGene machines. If this option is set to
@@ -306,7 +306,7 @@ parameters, see the "How-To"_Section_howto.html#howto_24 discussion.
The option defaults are mesh = mesh/disp = 0 0 0, order = order/disp =
5 (PPPM), order = 10 (MSM), minorder = 2, overlap = yes, force = -1.0,
gewald = gewald/disp = 0.0, slab = 1.0, compute = yes, cutoff/adjust =
-yes (MSM), pressure/scalar = yes (MSM), fftbench = yes (PPPM), diff = ik
+yes (MSM), pressure/scalar = yes (MSM), fftbench = no (PPPM), diff = ik
(PPPM), mix/disp = pair, force/disp/real = -1.0, force/disp/kspace = -1.0,
split = 0, tol = 1.0e-6, and disp/auto = no. For pppm/intel, order =
order/disp = 7.
--
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