From bapoczos at cs.cmu.edu Thu Apr 2 10:48:21 2015 From: bapoczos at cs.cmu.edu (Barnabas Poczos) Date: Thu, 2 Apr 2015 10:48:21 -0400 Subject: Prof Russ Greiner is visiting us Message-ID: Dear Friends, Professor Russ Greiner from University of Alberta, Edmonton, is going to visit us on April 13th -14th. On April 13th he is going to give a talk at the ML Lunch seminar. Russ is an outstanding researcher and also a great friend of mine. If you would like to meet him, please subscribe here or talk to Sandy (cc-ed). I'm attaching his bio below. https://docs.google.com/spreadsheets/d/1Wh_2fbNf2jrvFgnpxunVUohyY4Jlw1GNBvT1z0IiMK0/edit#gid=0 Thanks, Barnabas After earning a PhD from Stanford, Russ Greiner worked in both academic and industrial research before settling at the University of Alberta, where he is now a Professor in Computing Science and the founding Scientific Director of the Alberta Innovates Centre for Machine Learning, which won the ASTech Award for "Outstanding Leadership in Technology" in 2006. He has been Program Chair for the 2004 "Int'l Conf. on Machine Learning", Conference Chair for 2006 "Int'l Conf. on Machine Learning", Editor-in-Chief for "Computational Intelligence", and is serving on the editorial boards of a number of other journals. He was elected a Fellow of the AAAI (Association for the Advancement of Artificial Intelligence) in 2007, and was awarded a McCalla Professorship in 2005-06 and a Killam Annual Professorship in 2007. He has published over 200 refereed papers and patents, most in the areas of machine learning and knowledge representation, including 4 that have been awarded Best Paper prizes. The main foci of his current work are (1) bioinformatics and medical informatics; (2) learning and using effective probabilistic models and (3) formal foundations of learnability. ====================== Barnabas Poczos, PhD Assistant Professor Machine Learning Department Carnegie Mellon University From predragp at andrew.cmu.edu Sun Apr 19 18:04:28 2015 From: predragp at andrew.cmu.edu (predragp at andrew.cmu.edu) Date: Sun, 19 Apr 2015 18:04:28 -0400 Subject: Ipython Hanging In-Reply-To: <928A2462-9C5A-444B-93AF-894F4DF46C30@cmu.edu> References: <928A2462-9C5A-444B-93AF-894F4DF46C30@cmu.edu> Message-ID: I have multiple reports that ipython27 in hanging on neill computational nodes. I just mounted zfsauton home on neill1 and tested ipython27 with my regular user account. Everything worked perfectly. At the same time I have no doubt that neither Ed or Sriram are trying to pull a prank on me. Typically UNIX process will appear to hang due to two principal reasons. One is that is busy in some kind run off infinite loop which never gets terminated or due to the fact that resources are not available. If you have no problem reading and writing in your home account than file system is available (I am in the process of tuning NFS mount so that we get much better performance from the current) than other resources should not be a problem. Ipython should not hang due to the lock file but it doesn't hurt that you guys check .ipython in home directory. Try killing ipython processes pgrep ipython27|xargs kill -9 or for that matter all python processes. It will take me some time to do strace and lsof. As a mater of the last resort I am sure that reboot should clear the problems but I don't want to reboot servers at this point. PRedrag > Hey Predrag, > > When I try to run ipython27 on the servers it just hangs. I try ctrl-C, it > shows ^C on the screen but the program continues to hang. Is there a > reason why ipython is no longer responsive. > > Ed > Hey Predrag, > > Ipython seems be hanging on the neill servers. Forget about ipython > notebook using x2go servers, but just pure terminal based ipython27 is > also hanging. > > Do you know something that happened recently that created this issue? > > Thanks for the help! > > -Sriram > From predragp at andrew.cmu.edu Tue Apr 21 19:14:09 2015 From: predragp at andrew.cmu.edu (predragp at andrew.cmu.edu) Date: Tue, 21 Apr 2015 19:14:09 -0400 Subject: Server Easter Egg In-Reply-To: References: Message-ID: <7de6e16c789407d64ac2678ea7166dbc.squirrel@webmail.andrew.cmu.edu> > Why does command "sl" on the server produce a train? > > -Prateek > sl which stands for "Steam locomotive" is an old UNIX prank program designed to annoy people who don't know how to type and apparently it worked. Did you want to type ls? The real question is how sl got installed to begin with. Namely I wanted to install sl-ls which stands for substantially more useful ls http://practicalthought.com/sl/ and typed yum install sl. Unfortunately sl-ls is not ported to Red Hat like many other neat UNIX programs but sl "Steam locomotive" got installed. Cheers, Predrag