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annotate +noname/convergence.m @ 1037:2d7ba44340d0 feature/burgers1d

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Pass scheme specific parameters as cell array. This will enabale constructDiffOps to be more general. In addition, allow for schemes returning function handles as diffOps, which is currently how non-linear schemes such as Burgers1d are implemented.
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Fri, 18 Jan 2019 09:02:02 +0100
parents 3e1d8051e68e
children
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ddfb98209aa2 Fixed a bunch of problems regarding convergence and saving solutions
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1 % Reference is either a key or a function handle
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2 function [q, e, h, runtime] = convergence(filename, errorFunc, reference, name, order, m, T)
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3 default_arg('errorFunc', @scheme.error1d);
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4
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5 sf = SolutionFile(filename);
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8 % Generate convergence, error, and efficiency plots for each search key with more than one entry.
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9 for i = 1:length(m)
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10 key.name = name;
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11 key.order = order;
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12 key.m = m(i);
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13 key.T = T;
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14
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15 entry = sf.get(key);
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17 [e(i),h(i)] = errorForEntry(key, entry, errorFunc, reference,T);
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c6eb3af205c0 Better error handeling in noname.convergence. Better handeling of T=0 in noname.calculateSolution
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18 runtime(i) = entry.runtime;
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20 end
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21 q = convergence(e,h);
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22 end
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23
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24 function [e, h] = errorForEntry(key,entry, errorFunc, reference,T)
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25 v_repr = entry.repr;
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26 discr = entry.discr;
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27
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28 % Get the solution to be compared
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29 v = v_repr.v;
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31 % Get the reference solution vector
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32 if isa(reference,'function_handle');
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33 x = v_repr.grid.points();
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34 v_ref = reference(x,T);
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35 else
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36 % Downsample the reference solution
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fc07ebc49412 noname: Changed convergence to use grids in the representation of the solutions.
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37 v_ref = reference.grid.restrictFunc(reference.v, v_repr.grid);
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38 end
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40 e = errorFunc(discr,v, v_ref);
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41 h = discr.h;
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42 end