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pwtk is what you want. <br>
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<a href="http://pwtk.ijs.si/tutorial.html" id="LPlnk573099">http://pwtk.ijs.si/tutorial.html</a></div>
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A tutorial is available here, roughly three hours into the video:</div>
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<a href="https://youtu.be/qdY4kCWn_5M?list=PLYc-eBoIpXTKzdsiw02gmAt8cnOe011Ue&t=11119" id="LPlnk445217">https://youtu.be/qdY4kCWn_5M?list=PLYc-eBoIpXTKzdsiw02gmAt8cnOe011Ue&t=11119</a><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> users <users-bounces@lists.quantum-espresso.org> on behalf of Mpayami via users <users@lists.quantum-espresso.org><br>
<b>Sent:</b> Thursday, February 16, 2023 11:48 AM<br>
<b>To:</b> Quantum ESPRESSO users Forum <users@lists.quantum-espresso.org><br>
<b>Subject:</b> Re: [QE-users] cell_dofree</font>
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<div class="x_iw_mail" dir="auto" style="font-size:13px">In other words, I would like to do a general (not cubic ibrav=1) vc-relax, with the constraint of keeping the space group. Just scale the axes uniformly.
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<div>Mahmoud<br>
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----- Original Message -----</div>
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From: Mpayami via users (<a href="mailto:users@lists.quantum-espresso.org" style="font-family:Helvetica,sans-serif; font-size:12px; font-weight:300; line-height:150%; color:rgb(0,136,204); text-decoration:none">users@lists.quantum-espresso.org</a>)<br>
Date: 27/11/1401 08:18<br>
To: Quantum ESPRESSO users Forum (<a href="mailto:users@lists.quantum-espresso.org" style="font-family:Helvetica,sans-serif; font-size:12px; font-weight:300; line-height:150%; color:rgb(0,136,204); text-decoration:none">users@lists.quantum-espresso.org</a>)<br>
Subject: <span style="font-family:Helvetica,sans-serif; font-size:12px; font-weight:300; line-height:150%; color:#333; text-decoration:none; font-weight:bold">
[QE-users] cell_dofree</span></div>
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<div class="x_iw_mail" dir="auto" style="font-size:13px">
<div>Dear QE Users and Developers</div>
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<div>Hi.</div>
<div>I would like to do a constrained vc-relax such that only celldm(1) moves but all other celldm(2), ..., celldm(6) keep fixed.</div>
<div>I did not find the case in "cell_dofree" or maybe I am confused with the explanations in DOC. Also I looked at init_dofree in Modules/cell_base.f90</div>
<div>and still confused.</div>
<div>Could anybody please help to identify the proper option?</div>
<div>Thanks in advance.</div>
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<div>Best regards,</div>
<div><br>
<div>Mahmoud Payami</div>
<div>NSTRI, AEOI</div>
<div>Tehran, Iran</div>
<div>Email: <a href="mailto:mpayami@aeoi.org.ir">mpayami@aeoi.org.ir</a></div>
<div>Phone: +98(0)2182066504</div>
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