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<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Garamond",serif">QE Users & Devs,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Garamond",serif">I am attempting to use the linear-response calculation of U values (hp.x). This operation can take a lot of time, so much that my job times out before it finished. I’ve attempted
 to divide the job into q-points using the `start_q` and `last_q` options. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Garamond",serif">However, when I do this, I will not get `chi` files when I attempt to calculate the linear response U value for any range of q-points using the input:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="p1"><span class="s1">&inputhp</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">prefix="test",</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">outdir="./",</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">nq1 = 3,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">nq2 = 3,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">nq3 = 3,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">start_q = 11,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">last_q = 14,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">!find_atpert = 2,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">perturb_only_atom(2) = .TRUE.</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">thresh_init = 0.01,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">alpha_mix = 0.1,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">conv_thr_chi=5.0e-6,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">iverbosity = 2,</span><o:p></o:p></p>
<p class="p1"><span class="apple-converted-space">    </span><span class="s1">compute_hp = .FALSE.</span><o:p></o:p></p>
<p class="p1"><span class="s1">/</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Garamond",serif"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt;font-family:"Garamond",serif"><o:p> </o:p></span></p>
<p class="p1"><span style="font-size:14.0pt;font-family:"Garamond",serif">In my HP folder I only see “</span><span class="s1">test.dns.pert_1.q_11.dat</span><span class="apple-converted-space">” and “test</span><span class="s1">.hub*” and “test.mixd*” files.<o:p></o:p></span></p>
<p class="p1"><span class="s1"><o:p> </o:p></span></p>
<p class="p1"><span class="s1">After completing all of the qpoint calculations and attempting to run HP.x with `compute_hp=.TRUE.` the code informs me that I’m missing “chi” files.<o:p></o:p></span></p>
<p class="p1"><span class="s1"><o:p> </o:p></span></p>
<p class="p1"><span class="s1">What am I missing to get this to work? </span><o:p></o:p></p>
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