<div dir="ltr">Hi Shaoqi,<div><br></div><div>I have been doing some testing. In the computer I am using I could not compile both Pythia 6.4.28 and LHAPDF 6.1.5 (the versions you are using), so I am using Pythia 6.4.28 and LHAPDF 5.3.0, the version quoted in the README with which BlackMax was tested. Now, using the same parameter.txt, but changing the PDF value to 10000 (MSTW2008 is not available in the LHAPDF version I use) file you sent Prof. Issever I can generate all the events without any errors. Hence, I can suggest a few things:</div><div><ol><li>If you want to carry on using the same LHAPDF with the MSTW2008 pdfset, you could try generating events in batches of 1000, avoiding the crash. I haven't reproduced the problem just yet, but the crashing problem seems to come from Pythia rather than BlackMax and at the moment I don't know a way around it. </li><li>I have also tried generating events without Pythia's instant hadronization, and that works fine too. Hence, instead of compiling by doing "gmake all" you can use "gmake BlackMax". With this option, the code will anyway generated a .lhe file which you can feed to Pythia. </li><li>You can move to the same LHAPDF version I have used, changing your PDF in the process, which seems to work fine.</li></ol><div>Sorry I can't solve the issue at the moment, but I am having my thesis defence soon, after that perhaps we can talk more at length. Hope that helps for the moment. </div></div><div><br></div><div>Best,</div><div><br></div><div>Marc</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 3 March 2015 at 18:28, Marc Cano Bret <span dir="ltr"><<a href="mailto:marc.bret.87@gmail.com" target="_blank">marc.bret.87@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Shaoqi,<div><br></div><div>Good question. At the moment I don't know as its something I haven't attempted yet but I will try to come back to you as soon as possible. </div><div><br></div><div>Best,</div><div><br>Marc</div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On 3 March 2015 at 18:25, Shaoqi Hou <span dir="ltr"><<a href="mailto:shou@crimson.ua.edu" target="_blank">shou@crimson.ua.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Hi Marc,<br><br></div>How to discard the event? Thank you very much!<br> <br></div>Best Wishes<span><font color="#888888"><br><br></font></span></div><span><font color="#888888">Shaoqi<br><br></font></span></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Mar 3, 2015 at 12:04 PM, Marc Cano Bret <span dir="ltr"><<a href="mailto:marc.bret.87@gmail.com" target="_blank">marc.bret.87@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Shaoqi,<div><br></div><div>Discussing with my supervisor, It could well be that its a common problem as sometimes Pythia can refuse to hadronize an event. Ideally we should just discard that event rather than making the whole code stop when it happens.</div><div><br></div><div>Thanks,</div><div><br>Marc</div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On 3 March 2015 at 17:52, Shaoqi Hou <span dir="ltr"><<a href="mailto:shou@crimson.ua.edu" target="_blank">shou@crimson.ua.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Hi Mr. Marc Cano Bret,<br><br></div>Thanks for your help! I compiled BlackMax in the all mode. And I use older version of PYTHIA. pythia-6.4.28. <br><br></div>Best Wishes<span><font color="#888888"><br><br></font></span></div><span><font color="#888888">Shaoqi<br><br></font></span></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Mar 3, 2015 at 8:55 AM, Marc Cano Bret <span dir="ltr"><<a href="mailto:marc.bret.87@gmail.com" target="_blank">marc.bret.87@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear Shaoqi,<div><br></div><div>I have been forwarded the email discussion you had with Prof. Issever on the BlackMax issue you have encountered. Could you please tell me which option are you using to compile BlackMax (BlackMaxOnly, BlackMax or all) and the Pythia version you are using? Using the same parameter.txt file you sent Prof. Issever I can generate events just fine by compiling in the BlackMax mode, so I guess the problem might be with Pythia if you are using the all compilation mode.</div><div><br></div><div>Best,</div><div><br>Marc</div></div><div class="gmail_extra"><br><div class="gmail_quote">On 3 March 2015 at 14:50, Marc Cano Bret <span dir="ltr"><<a href="mailto:marc.bret.87@gmail.com" target="_blank">marc.bret.87@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Cigdem,<div><br>Looking through the output file and the parameter.txt I don't see anything striking. I have run BlackMax myself using his file and don't get any errors. I first ran with the CTEQ PDF and then with the PDF he is using (21000, which is MSTW2008). It is then quite possible that this is a Pythia issue. I normally compile BlackMax with the BlackMaxOnly or BlackMax choice so I haven't encountered this problem. The Pythia version I have in my computer (8.175) is very recent and BlackMax doesnt compile with that one. We should ask which option he is using to compile BlackMax and if he is using the Pythia version mentioned in the README file. I will drop him an email. </div><div><br></div><div>Best,</div><div><br>Marc</div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On 3 March 2015 at 14:18, Cigdem Issever <span dir="ltr"><<a href="mailto:c.Issever1@physics.ox.ac.uk" target="_blank">c.Issever1@physics.ox.ac.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div> <div style="direction:ltr;font-family:Tahoma;color:#000080;font-size:10pt">and the outputs<span><span><br> <div><br> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"><font color="#008000">---------------------------------------------------------------------<br> <a href="https://www2.physics.ox.ac.uk/contacts/people/issever" target="_blank">Cigdem Issever</a> <font color="#008000"> </font> <br> University of Oxford </font><font color="#008000"><font color="#008000">@ CERN office 104/1-C14</font> <br> Skype-id: cigdem.issever Oxford Tel: <a href="tel:%2B44-1865-273337" value="+441865273337" target="_blank">+44-1865-273337</a> <br> ---------------------------------------------------------------------</font><br> </div> </div> </div> </div> </div> </div> </div> </div> </span></span><div style="font-family:Times New Roman;color:#000000;font-size:16px"> <hr> <div style="direction:ltr"><font color="#000000" face="Tahoma"><span><b>From:</b> Shaoqi Hou [<a href="mailto:shou@crimson.ua.edu" target="_blank">shou@crimson.ua.edu</a>]<br> <b>Sent:</b> 25 February 2015 15:57<br> <b>To:</b> Cigdem Issever<br> <b>Cc:</b> Email the developers</span><span><br> <b>Subject:</b> Re: [Blackmax] Running BlackMax at 8 TeV failed<br> </span></font><br> </div><div><div> <div></div> <div> <div dir="ltr"> <div> <div> <div>Hi Prof. Issever,<br> <br> I ran BlackMax with the newest parameter.txt sent to you. BlackMax stalled after about 2 min, 1481 events simulated. No more events were simulated further. Please download the two attachments. Thank you very much!<br> <br> Best Wishes<br> <br> Shaoqi<br> <br> <br> <div class="gmail_chip gmail_drive_chip" style="width:396px;min-height:18px;max-height:18px;background-color:#f5f5f5;padding:5px;color:#222;font-family:arial;font-style:normal;font-weight:bold;font-size:13px;border:1px solid #ddd;line-height:1"> <a href="https://docs.google.com/a/crimson.ua.edu/file/d/0B4MDh9xjGUXvanQ3bEVEQWFXLUU/edit?usp=drive_web" style="display:inline-block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-decoration:none;padding:1px 0px;border:medium none;width:100%" target="_blank"><img src="https://ssl.gstatic.com/docs/doclist/images/icon_10_generic_list.png" style="vertical-align:bottom;border:none"> <span dir="ltr" style="color:#15c;text-decoration:none;vertical-align:bottom">BlackMaxLHArecord.lhe</span></a></div> <br> <div class="gmail_chip gmail_drive_chip" style="width:396px;min-height:18px;max-height:18px;background-color:#f5f5f5;padding:5px;color:#222;font-family:arial;font-style:normal;font-weight:bold;font-size:13px;border:1px solid #ddd;line-height:1"> <a href="https://docs.google.com/a/crimson.ua.edu/file/d/0B4MDh9xjGUXvbHpVNFhQWGxVN0E/edit?usp=drive_web" style="display:inline-block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-decoration:none;padding:1px 0px;border:medium none;width:100%" target="_blank"><img src="https://ssl.gstatic.com/docs/doclist/images/icon_10_generic_list.png" style="vertical-align:bottom;border:none"> <span dir="ltr" style="color:#15c;text-decoration:none;vertical-align:bottom">output.txt</span></a></div> <br> </div> </div> </div> <br> </div> <div class="gmail_extra"><br> <div class="gmail_quote">On Wed, Feb 25, 2015 at 8:40 AM, Cigdem Issever <span dir="ltr"> <<a href="mailto:c.Issever1@physics.ox.ac.uk" target="_blank">c.Issever1@physics.ox.ac.uk</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div> <div style="direction:ltr;font-family:Tahoma;color:#000080;font-size:10pt">Can you also send me any output BlackMax produce when you run it with the 8TeV setup? <br> <br> I will try to run BlackMax myself with your settings and see if I can reproduce it. <br><span> <span><br> Cigdem<br> <div><br> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"><font color="#008000">---------------------------------------------------------------------<br> <a href="https://www2.physics.ox.ac.uk/contacts/people/issever" target="_blank">Cigdem Issever</a> <font color="#008000"> </font> <br> University of Oxford </font><font color="#008000"><font color="#008000">@ CERN office 104/1-C14</font> <br> Skype-id: cigdem.issever Oxford Tel: <a href="tel:%2B44-1865-273337" value="+441865273337" target="_blank"> +44-1865-273337</a> <br> ---------------------------------------------------------------------</font><br> </div> </div> </div> </div> </div> </div> </div> </div> </span> </span><div style="font-family:Times New Roman;color:#000000;font-size:16px"> <hr> <div style="direction:ltr"><font color="#000000" face="Tahoma"><b>From:</b> Cigdem Issever<br> <b>Sent:</b> 24 February 2015 17:03 <div><div><div> <div><br> <b>To:</b> <a href="mailto:shou@crimson.ua.edu" target="_blank">shou@crimson.ua.edu</a>; Email the developers<br> <b>Subject:</b> RE: [Blackmax] Running BlackMax at 8 TeV failed<br> </div> </div> </div></div></font><br> </div><div><div> <div> <div> <div></div> <div> <div style="direction:ltr;font-family:Tahoma;color:#000080;font-size:10pt">I am not sure what BlackMax does if you set the maximum mass to a higher value than the centre of mass energy. <br> <br> Can you try to run blackmax for the COM = 8 TeV with a maximum mass value of 8TeV? and see if you still have this problem? <br> <br> Cigdem<br> <div><br> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"><font color="#008000">---------------------------------------------------------------------<br> <a href="https://www2.physics.ox.ac.uk/contacts/people/issever" target="_blank">Cigdem Issever</a> <font color="#008000"> </font> <br> University of Oxford </font><font color="#008000"><font color="#008000">@ CERN office 104/1-C14</font> <br> Skype-id: cigdem.issever Oxford Tel: <a href="tel:%2B44-1865-273337" value="+441865273337" target="_blank"> +44-1865-273337</a> <br> ---------------------------------------------------------------------</font><br> </div> </div> </div> </div> </div> </div> </div> </div> <div style="font-family:Times New Roman;color:#000000;font-size:16px"> <hr> <div style="direction:ltr"><font color="#000000" face="Tahoma"><b>From:</b> Cigdem Issever<br> <b>Sent:</b> 24 February 2015 17:01<br> <b>To:</b> <a href="mailto:shou@crimson.ua.edu" target="_blank">shou@crimson.ua.edu</a>; Email the developers<br> <b>Subject:</b> RE: [Blackmax] Running BlackMax at 8 TeV failed<br> </font><br> </div> <div></div> <div> <div style="direction:ltr;font-family:Tahoma;color:#000080;font-size:10pt">Dear Shaoqi, <br> <br> the parameter file you have send is this the the file which causes the problems? I see that the centre of mass energy in this file is set to 9TeV. Can you send me the file which causes the problem? Or are you just changing the centre of mass energy from 9 to 8 TeV in this file and you end up with problems? <br> <br> I just want to make sure that there is not a typo in the parameter file where you set the CoM to 8 TeV. <br> <br> Best<br> Cigdem<br> <div><br> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"> <div style="font-size:13px;font-family:Tahoma"><font color="#008000">---------------------------------------------------------------------<br> <a href="https://www2.physics.ox.ac.uk/contacts/people/issever" target="_blank">Cigdem Issever</a> <font color="#008000"> </font> <br> University of Oxford </font><font color="#008000"><font color="#008000">@ CERN office 104/1-C14</font> <br> Skype-id: cigdem.issever Oxford Tel: <a href="tel:%2B44-1865-273337" value="+441865273337" target="_blank"> +44-1865-273337</a> <br> ---------------------------------------------------------------------</font><br> </div> </div> </div> </div> </div> </div> </div> </div> <div style="font-family:Times New Roman;color:#000000;font-size:16px"> <hr> <div style="direction:ltr"><font color="#000000" face="Tahoma"><b>From:</b> <a href="mailto:blackmax-bounces@projects.hepforge.org" target="_blank"> blackmax-bounces@projects.hepforge.org</a> [<a href="mailto:blackmax-bounces@projects.hepforge.org" target="_blank">blackmax-bounces@projects.hepforge.org</a>] on behalf of Shaoqi Hou [<a href="mailto:shou@crimson.ua.edu" target="_blank">shou@crimson.ua.edu</a>]<br> <b>Sent:</b> 24 February 2015 16:45<br> <b>To:</b> <a href="mailto:blackmax@projects.hepforge.org" target="_blank">blackmax@projects.hepforge.org</a><br> <b>Subject:</b> [Blackmax] Running BlackMax at 8 TeV failed<br> </font><br> </div> <div></div> <div> <div dir="ltr"> <div> <div> <div>To whom it may concern,<br> <br> </div> I am a graduate student at the University of Alabama. Recently, I tried to run BlackMax to reproduce the results of Fig. 1 published in the paper JHEP 07 (2013) 178. But unfortunately, BlackMax got stuck when the center of mass energy was set to 8 TeV. If the center of mass energy is 14 TeV or 9 TeV, BlackMax runs successfully. The attachment is the parameter file. Please look into this problem. Thank you!<br> <br> </div> Best wishes<br> <br> </div> Shaoqi Hou<br> <br> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> </div></div></div> </div> </div> </blockquote> </div> <br> </div> </div> </div></div></div> </div> </div> </blockquote></div><br></div> </div></div></blockquote></div><br></div> </blockquote></div><br></div> </div></div></blockquote></div><br></div> </div></div></blockquote></div><br></div> </div></div></blockquote></div><br></div> </div></div></blockquote></div><br></div>