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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@8481 f3b2605a-c512-4ea7-a41b-209d697bcdaa

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pscrozi
2012-07-05 23:15:09 +00:00
parent 193e63f443
commit 65a4122ac3
2 changed files with 6 additions and 4 deletions
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5
doc/kspace_modify.html
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@ -121,8 +121,9 @@ PPPM method to compute forces on particles given electrostatic
potentials on the PPPM mesh. The ik approach is the default that potentials on the PPPM mesh. The ik approach is the default that
performs differentiation in kspace, but requires 3 FFTs to transfer performs differentiation in kspace, but requires 3 FFTs to transfer
the computed fields back to real space. The analytic differentiation, the computed fields back to real space. The analytic differentiation,
or ad approach requires only 1 FFT, but requires a somewhat bigger or ad approach requires only 1 FFT to transfer the computed fields
PPPM mesh to achieve the same accuracy as the ik approach. back to real space, but requires a somewhat bigger PPPM mesh to
achieve the same accuracy as the ik approach.
</P> </P>
<P><B>Restrictions:</B> none <P><B>Restrictions:</B> none
</P> </P>

5
doc/kspace_modify.txt
View File

@ -115,8 +115,9 @@ PPPM method to compute forces on particles given electrostatic
potentials on the PPPM mesh. The ik approach is the default that potentials on the PPPM mesh. The ik approach is the default that
performs differentiation in kspace, but requires 3 FFTs to transfer performs differentiation in kspace, but requires 3 FFTs to transfer
the computed fields back to real space. The analytic differentiation, the computed fields back to real space. The analytic differentiation,
or ad approach requires only 1 FFT, but requires a somewhat bigger or ad approach requires only 1 FFT to transfer the computed fields
PPPM mesh to achieve the same accuracy as the ik approach. back to real space, but requires a somewhat bigger PPPM mesh to
achieve the same accuracy as the ik approach.
[Restrictions:] none [Restrictions:] none