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<span style="color: rgb(200, 38, 19);">(I'm re-sending this message, as the attached struct file in my previous post was too large. Now it's gzipped and smaller)</span></div>
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Dear WIEN2k developers,</div>
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I ran into an issue that is probably a communication problem between sgroup and symmetry. The attached struct file is a large supercell (Ag substitutional impurity in hcp-Zn), that has been created by sgroup as space group P-6 with 102 inequivalent positions. </div>
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When running 'x symmetry' in a folder that contains only this struct file, it fails for the 18<sup>th</sup> inequivalent position (Zn17):</div>
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ATOM 18: X=0.33333333 Y=0.66666666 Z=0.10000000</div>
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MULT= 2 ISPLIT= 8</div>
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18: X=0.33333333 Y=0.66666666 Z=0.90000000</div>
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Zn17 NPT= 781 R0=0.00005000 RMT= 2.3700 Z: 30.0</div>
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LOCAL ROT MATRIX: 1.0000000 0.0000000 0.0000000</div>
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0.0000000 1.0000000 0.0000000</div>
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0.0000000 0.0000000 1.0000000</div>
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The last lines of case.outputs read:</div>
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ATOM: 18</div>
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Zn17 operation # 1 1</div>
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Zn17 operation # 22 3 || -z</div>
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pointgroup is 2 (neg. iatnr!!)</div>
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axes should be: 2 || z</div>
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Both case.struct_st and case.in2_sy (that are produced by 'x symmetry') are truncated after the 17<sup>th</sup> inequivalent position. The screen output is:</div>
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SPACE GROUP DOES NOT CONTAIN INVERSION</div>
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2 missing</div>
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0.010u 0.003s 0:00.01 100.0% 0+0k 0+0io 0pf+0w</div>
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It looks like symmetry finds a point group "2", and does not recognize that one.</div>
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Not sure whether the problem is in sgroup, in symmetry, or in the way how they communicate to each other. </div>
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This was done with version 24.1. Any suggestion how to fix this?</div>
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Best regards,</div>
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Stefaan</div>
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