DA_fma in a small ring

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Posts: 5
Joined: 21 Mar 2017, 07:10

Re: DA_fma in a small ring

Post by OZGUR » 24 Aug 2017, 08:40

Dear Borland and all,

I have a question about the FMA in elegant, I run your sample file and saw it gave a good plot (image1). But when I do it for my file, it gives a plot which is not a classical plot for FMA analysis. You can see it in attached file (image2). I do not understand why it give this kind of points which are not intense in some small area around working point (which is 130.25/36.66).

I would appreciated if you can help me.

Thank you in advance,


Posts: 1735
Joined: 19 May 2008, 09:33
Location: Argonne National Laboratory

Re: DA_fma in a small ring

Post by michael_borland » 29 Aug 2017, 08:12


The problem is very likely that the density of points in the frequency_map command is not sufficient. Try reducing the xmin, xmax, and ymax values in the frequency_map command, as well as increasing the nx and ny values. Using Pelegant is a good idea if you have access to a multi-core system.


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