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</o:shapelayout></xml><![endif]--></head><body lang=DE link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>That is also what I was thinking. I am having only very few branches. Probably, I still have to find a model where I am getting enough branches to see the parallelization. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'>Thank you!<br>Henrik<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>-- <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>Dipl.-Math. Henrik Büsing<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>Jülich Supercomputing Centre<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>Institute for Advanced Simulation<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>Forschungszentrum Jülich<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>Wilhelm-Johnen-Straße<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>52425 Jülich, Germany<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>Phone: +49-2461-61-9884<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>Fax: +49-2461-61-6656<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>E-Mail: H.Buesing@fz-juelich.de<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>WWW: http://www.fz-juelich.de/ias/jsc<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>-------------------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>-------------------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>Forschungszentrum Juelich GmbH<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>52425 Juelich<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>Sitz der Gesellschaft: Juelich<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>Vorsitzender des Aufsichtsrats: MinDir Volker Rieke<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender),<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>Prof. Dr. Sebastian M. Schmidt<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>-------------------------------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Courier New"'>-------------------------------------------------------------------------------------<o:p></o:p></span></p></div><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='margin-left:35.4pt'><b>Von:</b> Tobias Stengel [mailto:Tobias.Stengel@locom.de] <br><b>Gesendet:</b> Donnerstag, 19. September 2019 13:01<br><b>An:</b> Büsing, Henrik <h.buesing@fz-juelich.de>; cbc@list.coin-or.org<br><b>Betreff:</b> AW: Parllel computations with CBC<o:p></o:p></p></div></div><p class=MsoNormal style='margin-left:35.4pt'><o:p> </o:p></p><div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'>Are you sure that CBC is already branching when look for the CPU utilization?<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'>Processing of the root node i.e. solving the root relaxation is single threaded and can take quite some time depending on the model.<o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'><o:p> </o:p></span></p></div><div><div class=MsoNormal align=center style='margin-left:35.4pt;text-align:center'><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'><hr size=2 width="100%" align=center></span></div><div id=divRpF313588><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:35.4pt'><b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'>Von:</span></b><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'> Cbc [cbc-bounces@coin-or.org]" im Auftrag von ""Büsing, Henrik" [h.buesing@fz-juelich.de]<br><b>Gesendet:</b> Donnerstag, 19. September 2019 11:21<br><b>An:</b> <a href="mailto:cbc@list.coin-or.org">cbc@list.coin-or.org</a><br><b>Betreff:</b> [Cbc] Parllel computations with CBC</span><span style='font-size:12.0pt;font-family:"Times New Roman",serif;color:black'><o:p></o:p></span></p></div><div><div><p class=MsoNormal style='margin-left:35.4pt'><span style='color:black'>Dear all, <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'>I am trying to run CBC in parallel. I did a </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>../coinbrew fetch Cbc</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>../coinbrew build Cbc --enable-cbc-parallel --prefix=/work/user/METIS/Cbc/build/build_parallel/ --test</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'>and then run</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>cbc -threads 16 -import model.mps –solve</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'>Cbc responds with </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>“threads was changed from 0 to 16”</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'>but I do not see any CPU utilization on more than one core. </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'>Any ideas on how I could check, I did everything right? <br><br>Thank you for your help!<br>Henrik Büsing</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>-- </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>Dipl.-Math. Henrik Büsing</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>Jülich Supercomputing Centre</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Institute for Advanced Simulation</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Forschungszentrum Jülich</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Wilhelm-Johnen-Straße</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>52425 Jülich, Germany</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>Phone: +49-2461-61-9884</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>Fax: +49-2461-61-6656</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>E-Mail: <a href="mailto:H.Buesing@fz-juelich.de">H.Buesing@fz-juelich.de</a></span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span lang=EN-US style='font-family:"Courier New";color:black'>WWW: <a href="http://www.fz-juelich.de/ias/jsc">http://www.fz-juelich.de/ias/jsc</a></span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>-------------------------------------------------------------------------------------</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>-------------------------------------------------------------------------------------</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Forschungszentrum Juelich GmbH</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>52425 Juelich</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Sitz der Gesellschaft: Juelich</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Vorsitzender des Aufsichtsrats: MinDir Volker Rieke</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender),</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>Prof. Dr. Sebastian M. Schmidt</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>-------------------------------------------------------------------------------------</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='font-family:"Courier New";color:black'>-------------------------------------------------------------------------------------</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal style='margin-left:35.4pt'><span style='color:black'> <o:p></o:p></span></p></div></div></div></div></div></body></html>