<div dir="ltr">Dear Michae<br>        Thanks for your help.After your advise,I read the example again.The input file is simple to accomplish,but it is a fixed bond length so it needs a script to   modify the C-C distance in the input and generate a curve with the length.So,it is my work to learn to built such a script and make it dance.<br>        sincerly<br>        Shengjie Wang<br>在 2015年7月11日星期六 UTC+8下午3:52:06，Shengjie Wang写道：<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;"><div dir="ltr">Dear cp2k expert,<br>      I'm newbi user cp2k,doing exercises on the exercise page:<a href="http://www.cp2k.org/exercises:2015_ethz_mmm:c2h2_bond_energy" target="_blank" rel="nofollow" onmousedown="this.href='http://www.google.com/url?q\75http%3A%2F%2Fwww.cp2k.org%2Fexercises%3A2015_ethz_mmm%3Ac2h2_bond_energy\46sa\75D\46sntz\0751\46usg\75AFQjCNGfY4wi1wISntzVJX7bP-t6KGSLdA';return true;" onclick="this.href='http://www.google.com/url?q\75http%3A%2F%2Fwww.cp2k.org%2Fexercises%3A2015_ethz_mmm%3Ac2h2_bond_energy\46sa\75D\46sntz\0751\46usg\75AFQjCNGfY4wi1wISntzVJX7bP-t6KGSLdA';return true;">http://www.cp2k.org/exercises:2015_ethz_mmm:c2h2_bond_energy</a>.<br>     I got the two questions: <br>      1:They tell me to load the module for the cp2k program,but I can't find them.Do I have to download something and recompile it?<br>      2:The command "bsub" is related to the operating system , is it right?<br><b></b></div></blockquote></div>