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Has anybody used the KIFMM (https://web.stanford.edu/~lexing/fmm.pdf) for the Yukawa potential?

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closed as unclear what you're asking by sssssssssssss, Christian Clason, Mauro Vanzetto, nicoguaro♦ Sep 28 '18 at 16:09

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ please clarify your question and perhaps elaborate on what you mean by "special scaling" $\endgroup$ – sssssssssssss Sep 26 '18 at 11:20
  • $\begingroup$ If I could I would, but I do not know which scaling that is needed. It just says so on their webpage. Concerning the KIFMM I wonder if anyone has applied it successfully on the Yukawa potential. $\endgroup$ – Raibyo Sep 27 '18 at 12:25
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    $\begingroup$ Then, how do you expect to obtain suggestions? $\endgroup$ – nicoguaro♦ Sep 27 '18 at 13:58
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    $\begingroup$ The KIFMM is kernel-independent, meaning (in this instance) that you can feed the FMM algorithm a handle to your kernel function and it evaluates the N-body type calculation in O(N) time. The Yukawa kernel is no exception. It seems likely to me that the "scaling" you're talking about refers to a particular optimization of the FMM implementation when the kernel function is homogeneous, i.e. $K(ax,ay)=a\cdot K(x,y)$. $\endgroup$ – smh Sep 27 '18 at 20:21
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    $\begingroup$ You edited the question, but still it is not the best fit for this site. Let's suppose somebody "answer" it saying: "Yes, I have." Try to explain what have you tried, the context for your problem and where are you having problems. $\endgroup$ – nicoguaro♦ Oct 2 '18 at 2:42