<div>Hello everyone, <br /></div><div><br /></div><div>I performed ab initio MD simulations of alpha-glucose, beta-glucose, alpha-mannose and beta-mannose in gas phase using CP2K 2024.3 on a cluster. <br /></div><div><br /></div><div>alpha-glucose, beta-glucose, alpha-mannose and beta-mannose are isomers with 24 atoms. <br /></div><div><br /></div><div>However, the performance I got are quite different: <br /></div><div>alpha-glucose: ~6.5 s/step</div><div>beta-glucose: ~1.8 s/step</div><div>alpha-mannose: ~6.5 s/step</div><div>beta-mannose: ~6.5 s/step</div><div><br /></div><div>The difference is so big that I could not figure it out. Could someone help me understand it? Thanks so much! <br /></div><div><br /></div><div>I also observed this difference with CP2K 2023.1 and 2024.1.<br /></div><div><br /></div><div>The attached are the input and output files. <br /></div><div><br /></div><div><br /></div><div>All the best,</div><div>Qinghua<br /></div><div><br /></div><div><br /></div>
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