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<?xml version="1.0" encoding="UTF-8"?>
<simulation xmds-version="2">
<testing>
<arguments>--x_lattice 256</arguments>
<xsil_file name="runtime_lattice_nonlocal_split_uniform_access.xsil" expected="../geometry/nonlocal_split_uniform_access_expected.xsil" absolute_tolerance="1e-6" relative_tolerance="1e-5" />
</testing>
<name>runtime_lattice_nonlocal_split_uniform_access</name>
<author>Graham Dennis</author>
<description>
Script to test accessing a fourier-transformed dimension backwards.
Based off of vibstring.xmds
</description>
<features>
<benchmark />
<bing />
<fftw plan="patient" />
<globals>
<![CDATA[
const real T = 10.0;
const real mass = 1e-3;
const real length = 1.0;
const real mu = mass/length;
const real T_mu = T/mu;
const real xmax = _max_x;
const real width = 0.1;
const real absorb = 80.0;
]]>
</globals>
<arguments>
<argument name="x_lattice" type="integer" default_value="300" />
</arguments>
<validation kind="run-time" />
</features>
<geometry>
<propagation_dimension> t </propagation_dimension>
<transverse_dimensions>
<dimension name="x" lattice="x_lattice" domain="(-1, 1)" />
</transverse_dimensions>
</geometry>
<vector name="main" initial_basis="x" type="complex">
<components>
u uDot
</components>
<initialisation>
<![CDATA[
u = exp(-100.0*(x-0.5)*(x-0.5))*exp(i*200*x);
uDot = u*i*200*sqrt(T_mu);
]]>
</initialisation>
</vector>
<sequence>
<integrate algorithm="ARK45" tolerance="1e-5" interval="2e-3" steps="1000">
<samples>5</samples>
<operators>
<operator kind="ex" constant="no">
<operator_names>L</operator_names>
<![CDATA[
L = -T_mu*kx*kx;
]]>
</operator>
<integration_vectors>main</integration_vectors>
<![CDATA[
du_dt = uDot;
duDot_dt = L[u];
]]>
</operators>
</integrate>
</sequence>
<output format="binary">
<sampling_group basis="kx" initial_sample="yes">
<moments>amp amp_reversed</moments>
<dependencies>main</dependencies>
<![CDATA[
amp = mod2(u);
amp_reversed = mod2(u(kx => -kx));
]]>
</sampling_group>
</output>
</simulation>
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