From mjbaysek at cs.cmu.edu Fri Feb 16 11:00:14 2007 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Fri, 16 Feb 2007 11:00:14 -0500 Subject: [auton-users] LOQ1 is DOWN Message-ID: <45D5D50E.1060308@cs.cmu.edu> Attention Lab Users There seems to be some corruption on the hard drive of LOQ1. The machine is currently unavailable while I diagnose the problem. Please check the status page at https://www.autonlab.org/status to find another available machine. -- Michael J. Baysek, Systems Analyst Carnegie Mellon University - Auton Lab www.cmu.edu - www.autonlab.org 412-268-8939 From mjbaysek at cs.cmu.edu Fri Feb 16 13:14:24 2007 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Fri, 16 Feb 2007 13:14:24 -0500 Subject: [auton-users] LOQ1 is UP In-Reply-To: <45D5D50E.1060308@cs.cmu.edu> References: <45D5D50E.1060308@cs.cmu.edu> Message-ID: <45D5F480.2050800@cs.cmu.edu> LOQ1 is again available for use. Michael J. Baysek, Systems Analyst Carnegie Mellon University - Auton Lab www.cmu.edu - www.autonlab.org 412-268-8939 Michael J. Baysek wrote, On 02/16/2007 11:00 AM: > Attention Lab Users > > There seems to be some corruption on the hard drive of LOQ1. The > machine is currently unavailable while I diagnose the problem. > Please check the status page at https://www.autonlab.org/status to > find another available machine. > > -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 3245 bytes Desc: S/MIME Cryptographic Signature URL: From ajit at cs.cmu.edu Sat Feb 24 22:15:11 2007 From: ajit at cs.cmu.edu (Ajit Singh) Date: Sat, 24 Feb 2007 22:15:11 -0500 Subject: [auton-users] Beat an algorithm, win a prize Message-ID: <45E0FF3F.9050502@cs.cmu.edu> Geoff and I are writing a paper on relational learning, and we would like to pit clever humans, with lots of background knowledge, against machines that have lots of data. We're using a small movie ratings prediction task, where you guess how many stars a user will assign to a movie. We would appreciate it if you could fill out the attached survey. It should take about 15 minutes. As a sweetener, the person who predicts ratings the best (under squared loss) gets bragging rights and a gift certificate from Amazon.com. Thanks Ajit -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: rating_task.txt URL: -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: Instructions.txt URL: From mjbaysek at cs.cmu.edu Tue Feb 27 16:15:57 2007 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Tue, 27 Feb 2007 16:15:57 -0500 Subject: [auton-users] SSH sessions on LOPs Message-ID: <45E49F8D.1070908@cs.cmu.edu> Hi Lab, I've heard a few reports in the recent weeks about SSH sessions being terminated for no apparent reason. If this has happened, or happens to you, here are some things to know: 1. Our LOP/Q/R/S machines are not configured to time out your sessions. Your sessions should last as long as you need them to. 2. When sharing machines with other users, it is always possible for a job, or combination of jobs to overflow the memory in the machine. When this happens, the kernel will go into self preservation, and will start killing unnecessary processes. The kernel has this strange tendency [wink] to kill things that you may think are important, such as your jobs and bash sessions. This doesn't happen very often, but when it does, I usually catch it and notify you that it happened. 3. If you sleep your laptop while connected to a LOP/Q/R/S machine, your SSH session should not be terminated. The only reason the session would terminate is if your DHCP lease expired while your machine was sleeping, and upon wakeup, it received a different IP address from the DHCP server. 1. For example, if sleep your laptop on wireless in Newell Simon, and walk elsewhere on campus and wake the machine, your connection should still be active. 2. The connection may not be active if many hours have passed from the time you put your computer to sleep. 3. If you sleep your laptop while plugged into a wired connection, and wake it without the wire, you will probably be disconnected, and vice-versa. 4. If you sleep your laptop at home, and wake it at campus, you will be disconnected and vice versa. 4. If you think you are timing out, please make sure that the TMOUT environment variable is either unset, or set to 0. This will disable timeout in bash/tcsh. The default setting in the lab is disabled. 5. Check your client connection environment. 1. In Linux you can find this in /etc/ssh/ssh_config. Make sure that ConnectTimeout is 0 or disabled, and look for other timeout related options. Make sure they are set to your liking. 2. In Windows ssh clients like PuTTY, you will want to check all of the relevant tabs and save your preferences to the defaults in PuTTY. 6. If you do get disconnected from a lab machine for apparently no reason, please notify me what machine and approximately what time the event occurred. -- Michael J. Baysek, Systems Analyst Carnegie Mellon University - Auton Lab www.cmu.edu - www.autonlab.org 412-268-8939 -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 3245 bytes Desc: S/MIME Cryptographic Signature URL: From mjbaysek at cs.cmu.edu Tue Feb 27 17:06:47 2007 From: mjbaysek at cs.cmu.edu (Michael J. Baysek) Date: Tue, 27 Feb 2007 17:06:47 -0500 Subject: [auton-users] Lab Machine Availability Message-ID: <45E4AB77.8020406@cs.cmu.edu> Hi Lab, We are experiencing many deadlines this week, and subsequently, we have a very high reserve rate on lab machines. Please, if you expect to need a lab machine, please let me know as soon as possible so I can budget to keep enough machines free. In fairness to all who might be needing resources, I'd like to ask you to consider running more than one job on a single machine. In most cases this does not significantly impact results of timings. If you suspect it will, I'd like to ask you to run a small test set to determine if it does. If we can run 2 jobs on a 2 cpu machine, we won't have such a tight situation with reservations, and you might be able to get another machine when you request it. As always, check the status page at http://www.autonlab.org/status/ to find an available machine, and contact me for reservation requests. If there is an outage emergency or other urgent problem, please call me on my cell. -- Michael J. Baysek, Systems Analyst Carnegie Mellon University - Auton Lab www.cmu.edu - www.autonlab.org 412-268-8939 Office 412-596-1618 Cell -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 3245 bytes Desc: S/MIME Cryptographic Signature URL: