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more explicitly describe how force/virial depend on random numbers

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Axel Kohlmeyer 2020-03-10 06:43:13 -04:00
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doc/src/pair_dpd.rst
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@ -129,13 +129,17 @@ the work of :ref:`(Afshar) <Afshar>` and :ref:`(Phillips) <Phillips>`.
.. note::
The virial calculation for pressure when using this pair style
The virial calculation for pressure when using these pair styles
includes all the components of force listed above, including the
random force.
random force. Since the random force depends on random numbers,
everything that changes the order of atoms in the neighbor list
(e.g. different number of MPI ranks or a different neighbor list
skin distance) will also change the sequence in which the random
numbers are applied and thus the individual forces and therefore
also the virial/pressure.
----------
Styles with a *gpu*\ , *intel*\ , *kk*\ , *omp*\ , or *opt* suffix are
functionally the same as the corresponding style without the suffix.
They have been optimized to run faster, depending on your available