Search Results

Search found 22968 results on 919 pages for 'stuck again'.

Page 194/919 | < Previous Page | 190 191 192 193 194 195 196 197 198 199 200 201  | Next Page >

  • Macbook Pro 13" Retina (10,2): Keyboard and Touchpad don't work

    - by Dirk
    I'm dealing with Ubuntu since about 5 years and installed it on several laptops. Now I'm stuck when trying to install Ubuntu 12.04.1 on a brand new Macbook Pro 13" Retina (10,2). I sucessfully can start Ubuntu from an USB stick, the Ubuntu desktop is visible, a mouse cursor is visible. But there is no respond to keyboard or touchpad input. So I cannot really install Ubuntu on the Macbook. The details of my approach: Prepare an empty USB stick Download "ISO 2 USB EFI Booter for Mac" and copy the file bootX64.efi to the USB drive as /efi/boot/bootX64.efi. Download Ubuntu 12.04.1 Desktop for Mac from http://cdimage.ubuntu.com/releases/1-amd64+mac.iso and copy the iso the USB drive as /efi/boot/boot.iso Put the USB stick into the Macbook Press and hold the "alt" button while switching the Macbook on Select "EFI Boot" from the boot menu that appears and press the Return / Enter key Immediately a black terminal screen appears with the headline "Welcome to the Ubuntu ISO << - EFI booter". 30 seconds later the familiar Ubuntu startup graphics screen is showing. Further 20 seconds later Ubuntu has started and the desktop is visible - in wonderfully fine resolution Now the computer does not respond to any actions on the touchpad nor the keyboard Who did install Ubuntu on this Macbook Pro 13" Retina (10,2) successfully? On this site https://help.ubuntu.com/community/MacBookPro this unit is not listed yet, anyway. Any help would be greatly appreciated! Dirk

    Read the article

  • Join the Geek+ Community on Google+ and Share Your Random Geekery

    - by The Geek
    It turns out that Google+ recently added a new feature that allows you to create your own community inside of Google+, where anybody that’s a member can post images, links, or start a discussion. We’ve created the Geek+ Community, so stop by and join in the fun. You’ll notice that there’s only a few members right now, but we’re hoping that we can get every How-To Geek reader to participate in the geeky discussion. You’re welcome to: Post random geeky stuff that you find. Yell at us for articles that you don’t like, or tell us how we can do things better. Participate in discussions with other HTG readers. Post up your own Geek Trivia. We might even publish it over here on How-To Geek. Ask others for advice. Just read everything that the other readers post. Lots of other things we can’t think of right now. Note: If you want tech support, you should post on our regular forum. Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

    Read the article

  • Ubuntu + Wacom Intuos 4 + MyPaint HELP!

    - by Sativa
    Please keep in mind I'm not that computer savvy, but I will try any suggestion so please help me out! My tablet will stop working if the USB connection is ever broken, or the Ubuntu software is being updated. Sometimes it will stop working for no reason that I can see. The lights will still be on, but it won't be responsive. It doesn't work again until I restart the laptop with the tablet plugged in, which is grating if you have to do it every 25 min. or so... I'm not sure if the issue is with the port, the tablet/cable or the driver but any suggestions would be very welcome! Also, MyPaint is frequently having hiccups. It seems to save fine but at times it will randomly close down and when I open files they're often empty. They turn into 0Kb files and only contain a single empty layer. Also very grating, considering I lose days of work for no clear reason and without any heads up. Again, I'm not sure if the issue is with the port, the tablet/cable or the driver but any suggestions would be very welcome! The error message reads; Traceback (most recent call last): File "/usr/share/mypaint/gui/application.py", line 177, at_application_start(*junk=()) else: self.filehandler.open_file(fn) variables: {'fn': ('local', u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora'), 'self.filehandler.open_file': ('local', <bound method FileHandler.wrapper of <gui.filehandling.FileHandler object at 0x7fdb89063a10>>)} File "/usr/share/mypaint/gui/drawwindow.py", line 60, wrapper(self=<gui.filehandling.FileHandler object>, *args=(u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora',), **kwargs={}) try: func(self, *args, **kwargs) # gtk main loop may be called in here... variables: {'self': ('local', <gui.filehandling.FileHandler object at 0x7fdb89063a10>), 'args': ('local', (u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora',)), 'func': ('local', <function open_file at 0x7fdb8b397b90>), 'kwargs': ('local', {})} File "/usr/share/mypaint/gui/filehandling.py", line 231, open_file(self=<gui.filehandling.FileHandler object>, filename=u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora') try: self.doc.model.load(filename, feedback_cb=self.gtk_main_tick) except document.SaveLoadError, e: variables: {'self.doc.model.load': ('local', <bound method Document.load of <lib.document.Document instance at 0x7fdb8ab4f8c0>>), 'feedback_cb': (None, []), 'self.gtk_main_tick': ('local', <function gtk_main_tick at 0x7fdb8b397b18>), 'filename': ('local', u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora')} File "/usr/share/mypaint/lib/document.py", line 544, load(self=<lib.document.Document instance>, filename=u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora', **kwargs={'feedback_cb': <function gtk_main_tick>}) try: load(filename, **kwargs) except gobject.GError, e: variables: {'load': ('local', <bound method Document.load_ora of <lib.document.Document instance at 0x7fdb8ab4f8c0>>), 'kwargs': ('local', {'feedback_cb': <function gtk_main_tick at 0x7fdb8b397b18>}), 'filename': ('local', u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora')} File "/usr/share/mypaint/lib/document.py", line 772, load_ora(self=<lib.document.Document instance>, filename=u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora', feedback_cb=<function gtk_main_tick>) tempdir = tempdir.decode(sys.getfilesystemencoding()) z = zipfile.ZipFile(filename) print 'mimetype:', z.read('mimetype').strip() variables: {'zipfile.ZipFile': ('global', <class 'zipfile.ZipFile'>), 'z': (None, []), 'filename': ('local', u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora')} File "/usr/lib/python2.7/zipfile.py", line 770, __init__(self=<zipfile.ZipFile object>, file=u'/home/maria/Desktop/Drawings/WIPs/Sativa Chibi.ora', mode='r', compression=0, allowZip64=False) if key == 'r': self._RealGetContents() elif key == 'w': variables: {'self._RealGetContents': ('local', <bound method ZipFile._RealGetContents of <zipfile.ZipFile object at 0x7fdb9b952790>>)} File "/usr/lib/python2.7/zipfile.py", line 811, _RealGetContents(self=<zipfile.ZipFile object>) if not endrec: raise BadZipfile, "File is not a zip file" if self.debug > 1: variables: {'BadZipfile': ('global', <class 'zipfile.BadZipfile'>)} BadZipfile: File is not a zip file

    Read the article

  • Is shipping a Clojure desktop app realistic?

    - by Cedric Martin
    I'm currently shipping a desktop Java application. It is a plain old Java 5 Java / Swing app and so far everything worked nicely. Java 5 was targetted because some users were on OS X version / computers that shall never have Java 6 (we may lift this limitation soon and switch to a newer Java and simply abandoning my users stuck with Java 5). I'm quickly getting up to speed with Clojure but I haven't really done lots of Clojure-to-Java and Java-to-Clojure yet and I was wondering if it was realistic to ship a Clojure desktop application instead of a Java application? The application I'm shipping is currently about 12 MB with all the .jar so adding Clojure doesn't seen to be too much of an issue. My plan would be to have Clojure call Java APIs: my application is already divided in several independent jars. If I understand correctly calling Clojure from Java is harder than calling Java code from Clojure which is why I'd basically rewrite all the UI (part of the UI, mixing Swing components and self-made BufferedImages needs to be rewritten anyway due to the rise of retina display), and do all the 'wiring' from Clojure. So that's the problem I'm facing: is it realistic to ship a Clojure desktop app? (it certainly doesn't seem to be very widespread but then shipping plain Java desktop apps ain't that common either and I'm doing it anyway) Technically, what would need to be done? (compared to shipping a Java app)

    Read the article

  • Oracle Key Vault - Hardware Security Modul für TDE und mehr

    - by Heinz-Wilhelm Fabry (DBA Community)
    Anfang August hat Oracle ein neues Produkt namens Oracle Key Vault (OKV) zum Einsatz freigegeben. Es handelt sich dabei um ein Hardware Security Modul (HSM) - also um ein Stück Hardware zum Speichern von Schlüsseln, Passwörtern und Dateien, die Schlüssel und Passwörter enthalten. Oracle Datenbank Installationen nutzen die zuletzt genannte Form des Speicherns von Passwörtern und Schlüsseln in Dateien für Oracle Advanced Security Transparent Data Encryption (TDE) und external password stores. Die Dateien werden in den Versionen 10 und 11 der Datenbank als Wallets bezeichnet, in der Version 12 als Keystores. Allerdings gibt es auch schon seit der Datenbankversion 11.2 beim Einsatz von TDE die Möglichkeit, statt der Wallets / Keystores HSMs einzusetzen. Da Oracle selbst kein eigenes HSM Produkt anbieten konnte, haben Unternehmenskunden dann auf Produkte anderer Anbieter zurückgegriffen. Das kann sich mit OKV nun ändern. Abhängig vom Bedrohungsszenario kann die Entscheidung gegen den Einsatz von Wallets / Keystores und für den Einsatz eines HSMs durchaus sinnvoll sein, denn ein HSM bietet mehr Sicherheit: Eine Betriebssystemdatei kann leichter gestohlen (kopiert) werden, als ein HSM, das in der Regel als speziell gesicherte Steckkarte in einem Rechner eingebaut ist oder als eigenes Gerät geschützt in einem Rechenzentrum steht. ein HSM kann anders als ein Wallet / Keystore systemübergreifend verwendet werden. Das erlaubt eine gemeinsame Nutzung von Schlüsseln - was wiederum zum Beispiel den Einsatz von TDE auf RAC Installationen perfekt unterstützt. ein HSM kann von mehreren Anwendungen genutzt werden. Das erleichtert das Konsolidieren und Verwalten von Passwörtern und Schlüsseln. Im aktuellen Tipp wird als Einführung in das neue Produkt dargestellt, wie OKV für TDE genutzt werden kann.

    Read the article

  • ubuntu apache2 start, stop, status, restart and reload commands fails

    - by Assil
    Hi, I am new to Ubuntu and I'm still trying to figure this OS out (for work it's brilliant, better than Windows). Before I wrote this question, I did my research via Google, this website and even in StackOverflow.com. Whatever error came up, I googled it but with no success on how to solve this. Back to the main point: I tried to install (lamp) apache2 with this guide (in German) and this one(in english). Then I got stuck at the start command (with which one is able to start the apache2 server), my first try to run the server was a success until i wrote sudo /etc/init.d/apache2 reload then it showed me an error: $ sudo /etc/init.d/apache2 reload * Starting web server apache2 Syntax error on line 1 of /etc/apache2/ports.conf: Invalid command 'oder', perhaps misspelled or defined by a module not included in the server configuration Action 'reload' failed. The Apache error log may have more information. [fail] I didn't even write the word "oder" so I closed the shell and opened it anew. It showed the same error. After that, I've done some research and found out that my file (index.html (which is in my /var/www folder)), which I access via the browser, when I type in http://localhost should show up and tell that it was a success. So I removed apache2 and installed it again but now the following errors appear: $ sudo /etc/init.d/apache2 start * Starting web server apache2 Syntax error on line 1 of /etc/apache2/ports.conf: Invalid command 'oder', perhaps misspelled or defined by a module not included in the server configuration Action 'start' failed. The Apache error log may have more information. [fail] And still, I didn't even write "oder" in the command. I appreciate every help I can get, further thanks and have a nice day.

    Read the article

  • Eclipse no longer useful

    - by dgood1
    When I got my Eclipse from the Ubuntu Software Center, it was good and worked fine. I could work on Java projects fine. This week I was required to add ADT and tried the ADT-bundle, assuming it had everthing I needed, seeing that the SDK had more steps. So now, I can create Android apps using the ADT-bundle. I tried to work on my java projects again and I now discovered: I can't run my java projects: "The selection cannot be launched. And there are no recent launches." error. I also believe Eclipse doesn't know it's a java program because it all in black and white. Not the usual green/blue/red/black things when making comments, variables and Strings. I can't make new projects of ANYTHING unless I use the adt-bundle. New project only offers CVS (whatever that is) My perspectives seem limited. I remembered more choices and now I'm limited to [Java], Resource, CVS Repository, debug, Team Sync. I was told to be able to use perspectives to swap between Android and Java developing. Even after the ADT installation using "Install new Software",nothing. I can't uninstall/purge/remove Eclipse via the terminal. I tried removing it then reinstalling it via the Ubuntu Software Cetner. No results other than it's temporary removal. (Possibly unrelated) A large number of repositories are not found when updating Eclipse. (See Step 8 in Summary of what I did...) Although, on checking the versions and installation history, I confirmed Android and Java are installed. It probably just doesn't know it's there. Eclipse Indigo: Version: 3.7.2 Build id: I20110613-1736 Summary of what I did before and during the problem: Downloaded adt-bundle. Attempted instructions from teacher. (Install new Software) (Failed but other than an annoying "can't find repository" during each update, no damage to report) (Fixed) Ran "eclipse" executable from the adt-bundle. Updated Eclipse. (After restart, I noticed the problem) NOTE: other than window arrangement, I had no customizations. Played around with the Windowspreferences and Projectpropertied. Restored to default settings after no results. Tried "apt-get purge eclipse". Couldn't find Eclipse so, nothing happened. Used Software center. No results. Tried swapping workspaces. I tried different folder, deeper folder, renaming. All return the same problem. Deleted adt-bundle (browsed folders then delete). Got Adt-sdk only. Installed. Can't find any changes other than some disk space usage. Of course, I can't make Android apps until I unzip the bundle again. WindowsPreferencesInstall/UpdateAvailable Software Sites, Checked as many repositories as possible, then updated. Still nothing. I'm about to get a second try on uninstalling it, because I think my last action will just be taking up space. But I'll wait for tomorrow, in case the answer will help. Any thoughts?

    Read the article

  • Debugging/Logging Techniques for End Users

    - by James Burgess
    I searched a bit, but didn't find anything particularly pertinent to my problem - so please do excuse me if I missed something! A few months back I inherited the source to a fairly-popular indie game project and have been working, along with another developer, on the code-base. We recently made our first release since taking over the development but we're a little stuck. A few users are experiencing slowdowns/lagging in the current version, as compared to the previous version, and we are not able to reproduce these issues in any of our various development environments (debug, release, different OSes, different machines, etc.). What I'd like to know is how can we go about implementing some form of logging/debugging mechanism into the game, that users can enable and send the reports to us for examination? We're not able to distribute debug binaries using the MSVS 2010 runtimes, due to the licensing - and wouldn't want to, for a variety of reasons. We'd really like to get to the bottom of this issue, even if just to find out it's nothing to do with our code base but everything to do with their system configuration. At the moment, we just have no leads - and the community isn't a very technically-savvy one, so we're unable to rely on 'expert' bug reports or investigations. I've seen the debug logging mechanism used in other applications and games for everything from logging simple errors to crash dumps. We're really at a loss at this stage as to how to address these issues, having been over every commit to the repository from the previous to the current version and not finding any real issues.

    Read the article

  • Installation hangs at "Retrieving file 43 of 105" Virtualbox OS X 10.7 Host Ubuntu 12.04 x86 guest

    - by goodcop
    This is my second attempt at installing Ubuntu. In my first attempt, I selected "download updates" and "install third-party components"; in my second attempt, I deselected both. Still experiencing the same problem. In my first attempt at installing Ubuntu, after the installation stuck at "Retrieving file 43 of 105", I selected "skip" and the installation completed. After I started to run the OS, I received a notification that language support was incomplete. When I tried to update it, the Ubuntu Software Centre updating process hung on "waiting for jockey-backend to exit", seemingly indefinitely. At that point, I decided to reinstall the system (since the whole process is only supposed to take 45 minutes or less), but, as I mentioned above my results were the same. I'm new to Ubuntu. Any advice? Where are the files (including file 43) being retrieved from? Online or from the ubuntu installation iso? I have searched many forums for an answer to this problem, and have seen others with the same issue but I haven't found a solution. Thanks.

    Read the article

  • Using Oracle Linux iSCSI targets with Oracle VM

    - by wim.coekaerts
    A few days ago I had written a blog entry on how to use Oracle Solaris 10 (in my case), ZFS and the iSCSI target feature in Oracle Solaris to create a set of devices exported to my Oracle VM server. Oracle Linux can do this as well and I wanted to make sure I also tried out how to do this on Oracle Linux and here are the results. When you install Oracle Linux 5 update 5 (anything newer than update 3), it comes with an rpm called scsi-target-utils. To begin your quest, should you choose to accept it :) make sure this is installed. rpm -qa |grep scsi-target If it is not installed : up2date scsi-target-utils The target utils come with a tool tgtadm which is similar to iscsitadm on Oracle Solaris. There are 2 components again on the iSCSI server side. (1) create volumes - we will use lvm with lvcreate (2) expose a target using tgtadm. My server has a simple setup. All the disks are part of a single volume group called vgroot. To export a 50Gb volume I just create a new volume : lvcreate -L 50G -nmytest1 vgroot This will show up as a new volume in /dev/mapper as /dev/mapper/vgroot-mytest1. Create as many as you want for your environment. Since I already have my blog entry about the 5 volumes, I am not going to repeat the whole thing. You can just go look at the previous blog entry. Now that we have created the volume, we need to use tgtadm to set it up : make sure the service is running : /etc/init.d/tgtd start or service tgtd start (if you want to keep it running you can do chkconfig tgtd on to start it automatically at boottime) Next you need a targetname to set everything up. My recommendation would be to install iscsi-initiator-utils . This will create an iscsi id and put it in /etc/iscsi/initiatorname.iscsi. For convenience you can do : source /etc/iscsi/initiatorname.iscsi echo $InitiatorName and from here on use $InitiatorName instead of the long complex iqn. create your target : tgtadm --lld iscsi --op new --mode target --tid 1 -T $InitiatorName to show the status : tgtadm --lld iscsi --op show --mode target add the volume previously created : tgtadm --lld iscsi --op new --mode logicalunit --tid 1 --lun 1 -b /dev/mapper/vgroot-mytest1 re-run status to see it's there : tgtadm --lld iscsi --op show --mode target and just like on Oracle Solaris you now have to export (bind) it : tgtadm --lld iscsi --op bind --mode target --tid 1 -I iqn.1986-03.com.sun:01:2a7526f0ffff If you want to export the lun to every iscsi initiator then replace the iqn with ALL. Of course you have to add the iqn of each iscsi initiator or client you want to connect. In the case of my 2 node Oracle VM server setup, both Oracle VM server's initiator names would have to be added. use status again to see that it has this iqn under ACL tgtadm --lld iscsi --op show --mode target You can drop the --lld iscsi if you want, or alias it. It just makes the command line more obvious as to what you are doing. Oracle VM side : Refer back to the previous blog entry for the detailed setup of my Oracle VM server volumes but the exact same commands will be used there. discover : iscsiadm --mode discovery --type sendtargets --portal login : iscsiadm --mode node --targetname iscsi targetname --portal --login get devices : /etc/init.d/iscsi restart and voila you should be in business. have fun.

    Read the article

  • Tuning Red Gate: #1 of Many

    - by Grant Fritchey
    Everyone runs into performance issues at some point. Same thing goes for Red Gate software. Some of our internal systems were running into some serious bottlenecks. It just so happens that we have this nice little SQL Server monitoring tool. What if I were to, oh, I don't know, use the monitoring tool to identify the bottlenecks, figure out the causes and then apply a fix (where possible) and then start the whole thing all over again? Just a crazy thought. OK, I was asked to. This is my first time looking through these servers, so here's how I'd go about using SQL Monitor to get a quick health check, sort of like checking the vitals on a patient. First time opening up our internal SQL Monitor instance and I was greeted with this: Oh my. Maybe I need to get our internal guys to read my blog. Anyway, I know that there are two servers where most of the load is. I'll drill down on the first. I'm selecting the server, not the instance, by clicking on the server name. That opens up the Global Overview page for the server. The information here much more applicable to the "oh my gosh, I have a problem now" type of monitoring. But, looking at this, I am seeing something immediately. There are four(4) drives on the system. The C:\ has an average read time of 16.9ms, more than double the others. Is that a problem? Not sure, but it's something I'll look at. It's write time is higher too. I'll keep drilling down, first, to the unclosed alerts on the server. Now things get interesting. SQL Monitor has a number of different types of alerts, some related to error states, others to service status, and then some related to performance. Guess what I'm seeing a bunch of right here: Long running queries and long job durations. If you check the dates, they're all recent, within the last 24 hours. If they had just been old, uncleared alerts, I wouldn't be that concerned. But with all these, all performance related, and all in the last 24 hours, yeah, I'm concerned. At this point, I could just start responding to the Alerts. If I click on one of the the Long-running query alerts, I'll get all kinds of cool data that can help me determine why the query ran long. But, I'm not in a reactive mode here yet. I'm still gathering data, trying to understand how the server works. I have the information that we're generating a lot of performance alerts, let's sock that away for the moment. Instead, I'm going to back up and look at the Global Overview for the SQL Instance. It shows all the databases on the server and their status. Then it shows a number of basic metrics about the SQL Server instance, again for that "what's happening now" view or things. Then, down at the bottom, there is the Top 10 expensive queries list: This is great stuff. And no, not because I can see the top queries for the last 5 minutes, but because I can adjust that out 3 days. Now I can see where some serious pain is occurring over the last few days. Databases have been blocked out to protect the guilty. That's it for the moment. I have enough knowledge of what's going on in the system that I can start to try to figure out why the system is running slowly. But, I want to look a little more at some historical data, to understand better how this server is behaving. More next time.

    Read the article

  • What's up with LDoms: Part 9 - Direct IO

    - by Stefan Hinker
    In the last article of this series, we discussed the most general of all physical IO options available for LDoms, root domains.  Now, let's have a short look at the next level of granularity: Virtualizing individual PCIe slots.  In the LDoms terminology, this feature is called "Direct IO" or DIO.  It is very similar to root domains, but instead of reassigning ownership of a complete root complex, it only moves a single PCIe slot or endpoint device to a different domain.  Let's look again at hardware available to mars in the original configuration: root@sun:~# ldm ls-io NAME TYPE BUS DOMAIN STATUS ---- ---- --- ------ ------ pci_0 BUS pci_0 primary pci_1 BUS pci_1 primary pci_2 BUS pci_2 primary pci_3 BUS pci_3 primary /SYS/MB/PCIE1 PCIE pci_0 primary EMP /SYS/MB/SASHBA0 PCIE pci_0 primary OCC /SYS/MB/NET0 PCIE pci_0 primary OCC /SYS/MB/PCIE5 PCIE pci_1 primary EMP /SYS/MB/PCIE6 PCIE pci_1 primary EMP /SYS/MB/PCIE7 PCIE pci_1 primary EMP /SYS/MB/PCIE2 PCIE pci_2 primary EMP /SYS/MB/PCIE3 PCIE pci_2 primary OCC /SYS/MB/PCIE4 PCIE pci_2 primary EMP /SYS/MB/PCIE8 PCIE pci_3 primary EMP /SYS/MB/SASHBA1 PCIE pci_3 primary OCC /SYS/MB/NET2 PCIE pci_3 primary OCC /SYS/MB/NET0/IOVNET.PF0 PF pci_0 primary /SYS/MB/NET0/IOVNET.PF1 PF pci_0 primary /SYS/MB/NET2/IOVNET.PF0 PF pci_3 primary /SYS/MB/NET2/IOVNET.PF1 PF pci_3 primary All of the "PCIE" type devices are available for SDIO, with a few limitations.  If the device is a slot, the card in that slot must support the DIO feature.  The documentation lists all such cards.  Moving a slot to a different domain works just like moving a PCI root complex.  Again, this is not a dynamic process and includes reboots of the affected domains.  The resulting configuration is nicely shown in a diagram in the Admin Guide: There are several important things to note and consider here: The domain receiving the slot/endpoint device turns into an IO domain in LDoms terminology, because it now owns some physical IO hardware. Solaris will create nodes for this hardware under /devices.  This includes entries for the virtual PCI root complex (pci_0 in the diagram) and anything between it and the actual endpoint device.  It is very important to understand that all of this PCIe infrastructure is virtual only!  Only the actual endpoint devices are true physical hardware. There is an implicit dependency between the guest owning the endpoint device and the root domain owning the real PCIe infrastructure: Only if the root domain is up and running, will the guest domain have access to the endpoint device. The root domain is still responsible for resetting and configuring the PCIe infrastructure (root complex, PCIe level configurations, error handling etc.) because it owns this part of the physical infrastructure. This also means that if the root domain needs to reset the PCIe root complex for any reason (typically a reboot of the root domain) it will reset and thus disrupt the operation of the endpoint device owned by the guest domain.  The result in the guest is not predictable.  I recommend to configure the resulting behaviour of the guest using domain dependencies as described in the Admin Guide in Chapter "Configuring Domain Dependencies". Please consult the Admin Guide in Section "Creating an I/O Domain by Assigning PCIe Endpoint Devices" for all the details! As you can see, there are several restrictions for this feature.  It was introduced in LDoms 2.0, mainly to allow the configuration of guest domains that need access to tape devices.  Today, with the higher number of PCIe root complexes and the availability of SR-IOV, the need to use this feature is declining.  I personally do not recommend to use it, mainly because of the drawbacks of the depencies on the root domain and because it can be replaced with SR-IOV (although then with similar limitations). This was a rather short entry, more for completeness.  I believe that DIO can usually be replaced by SR-IOV, which is much more flexible.  I will cover SR-IOV in the next section of this blog series.

    Read the article

  • can anyone help me through the preparation of Eclipse IDE for android developer in ubuntu 12.04?

    - by csbl
    I'm new to to Linux, in this particular case, to Ubuntu. I have a small android project I have to finnish until this Friday and I'm still stuck with the install and preparing of the development envrironment. The only thing I did was install the Eclipse IDE. I'm still missing the SDK, JAVA and anything else that might be needed. Can someone help me through this? It's only because I'm running out of time to develop, or else I would embarc on a deeper investigation of this OS. I tried the step to install android platforms, through Eclispe-Help-Install New Software, and I got the follwoing error messages, at the end of the process: [2012-06-06 17:35:56 - adb] /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] 'adb version' failed! /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] Failed to parse the output of 'adb version': Standard Output was: Error Output was: /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] 'adb version' failed! /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory [2012-06-06 17:35:56 - adb] Failed to parse the output of 'adb version': Standard Output was: Error Output was: /home/catia/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory Can anyone help, please??

    Read the article

  • Take a chance !

    - by Hartmut Wiese
    Hi everybody, Later today I am going to reach out to the JDE Partner in EMEA I am already in contact with and ask for participation and collaboration within the new EMEA JDE Partner Community. I am very excited about this community and I really believe we will have much more success in the future selling and implementing JDEdwards in this large region. For those who don´t know me yet ... I am really a long time in the JDEdwards business. I have been a JDE PreSales Consultant and joined JDEdwards in 1998 in Germany. After JDEdwards/PeopleSoft was aquired by Oracle I changed my role and become responsible on an EMEA level for the Oracle Accelerate and the Oracle Business Accelerator program. A lot of you are already know me ... and hopefully believe and trust me as well. Within the last five months I talked to approx. 60 partners already face-to-face during the various events I attended. We had two PreSales Universities delievered already and I have been to one JDE Exsite event, a JDE Executive Forum, two User groups events and one JDE Partner Event. Again approximately 60+ partner discussions and everybody likes the idea of the community and how I am going to run this in the future. At the JDEdwards UK User Group event (NOV 13) there was an external speaker talking about risk. It was a very good speech. One key element of his speech was that a sequence of (small) failures might lead to a big success. He gave very good examples from the history not software related at all but as a results some of the well done individuals everybody knows today started very small and they failed several times before they become successful. But these persons did not gave up and in the long run they win and succeeded. I really spent some time reflecting this to our business as of today. My intention to write these lines is to convince each partner out there to think about investing in JDEdwards TODAY. There are currently a number of potential investment ideas on the table for you. We have a very strong and powerful ERP System. We have advantages against all our competitors. Each partner has the ability to create his own SaaS model and deliver individual services to the customers. We also have three Business Accelerators available which really speeds up the implementation by still having full flexibility to change for example any processing option if needed. A huge number of customers are on old releases globally and think about upgrading. New technology makes new business processes available (e.g. iPad). Oracle is a pretty much forward looking company and we build tools and products. In the area of JDEdwards our partners are combining the Oracle tools and products and bringing the value to the customers. At one point in time you have decided to run your business on your own and to become a JDE/PSFT/ORCL partner. This was a risk of course at that point of time. You did not fail and this is very good of course. Business has changed and Oracle has the product and tools for you to become even more successful in the future but it is a very good time for you to take a risk again. I am not able to promise you anything but the situation is very good. You might not win every deal or increase your margin immediately but I truly believe you will find new ways of doing your business in the future by adopting some of our ideas. The only person who can stop you ... is you. Please try something new/different. Success sometimes needs some time and initial failures but if you never failed - you have never lived. To get support during this phase please share your doubts, thoughts, experiences inside the new JDEdwards community and learn from others who went to similar processes. Please join here. Take care and best regards Hartmut Wiese

    Read the article

  • Android device unable to obtain ip address connecting to AP created with Hostapd

    - by user114392
    I have a wired internet connection that works behind an authenticated proxy server. I followed the steps mentioned here and managed to create a hotspot which my google nexus 7 detects. However, it seems stuck at "obtaining an ip address" and is not able to connect to the internet. I initially received the following error message when running the script in the terminal: dnsmasq: failed to create listening socket for 127.0.0.1: Address already in use [fail] I figured it is because of a conflict with the network manager, I commented out the "dns=dnsmasq" line in the nm configuration file. After a network-manager restart, the first error doesn't show up but I get the following: Configuration file: /etc/hostapd.conf Failed to create interface mon.wlan0: -23 (Too many open files in system) Try to remove and re-create mon.wlan0 In both cases, however, the hotspot is created and is detected by my android device. only that it cannot "obtain an ip address" and connect to it. Is it because my eth0 connects via a proxy server? Or could there be something wrong with the dnsmasq config? Any help would be appreciated.

    Read the article

  • So are we ever getting the technological singularity

    - by jsoldi
    I´m still waiting for an AI robot that will pass the Turing test. I keep going back to http://www.a-i.com/ and nothing. I don´t know much about AI but, did anyone ever tried to make a genetic algorithm whose evolution algorithm itself evolves? Or how about one whose algorithm that makes the genetic algorithm evolve, evolves? Or one whose genetic algorithm that makes the genetic algorithm that makes the genetic algorithm evolve, evolves? Or how about an algorithm that abstracts all this into a potentially infinitely deep tree of genetic evolution algorithms? Aren´t we just failing as programmers? And I don´t think we can blame the processors speed. If you make and application that simulates consciousness you will get a Nobel prize no matter how many hours it takes to respond to your questions. But nobody did it. It almost reminds me to Randi´s $1000000 paranormal challenge. As I keep going back to AI chat bots, they keep getting better at changing the subject on a way that seems natural. But if I tell them something like "if 'x' is 2 then whats two times 'x'?" then they don't have a clue what I'm talking about. And I don't think they need a whole human brain simulation to be able to answer to something like that. They don't need feelings or perception. This is just language and logics. I don't think my perception of the color red gives me the ability to understand that if 'x' is 2 then two times 'x' is 4. I'm sure we are just missing some elemental principle we cannot grasp because it's probably stuck behind our eyes. What do you think?

    Read the article

  • Free RAM disappears - Memory leak?

    - by Izzy
    On a fresh started system, free reports about 1.5G used RAM (8G RAM alltogether, Ubuntu 12.04 with lightdm and plasma desktop, one konsole window started). Having the apps running I use, it still consumes not more than 2G. However, having the system running for a couple of days, more and more of my free RAM disappears -- without showing up in the list of used apps: while smem --pie=name reports less than 20% used (and 80% being available), everything else says differently. free -m for example reports on about day 7: total used free shared buffers cached Mem: 7459 7013 446 0 178 997 -/+ buffers/cache: 5836 1623 Swap: 9536 296 9240 (so you can see, it's not the buffers or the cache). Today this finally ended with the system crashing completely: the windows manager being gone, apps "hanging in the air" (frameless) -- and a popup notifying me about "too many open files". Syslog reports: kernel: [856738.020829] VFS: file-max limit 752838 reached So I closed those applications I was able to close, and killed X using Ctrl-Alt-backspace. X tried to come up again after that with failsafeX, but was unable to do so as it could no longer detect its configuration. So I switched to a console using Ctrl-Alt-F2, captured all information I could think of (vmstat, free, smem, proc/meminfo, lsof, ps aux), and finally rebooted. X again came up with failsafeX; this time I told it to "recover from my backed-up configuration", then switched to a console and successfully used startx to bring up the graphical environment. I have no real clue to what is causing this issue -- though it must have to do either with X itself, or with some user processes running on X -- as after killing X, free -m output looked like this: total used free shared buffers cached Mem: 7459 2677 4781 0 62 419 -/+ buffers/cache: 2195 5263 Swap: 9536 59 9477 (~3.5GB being freed) -- to compare with the output after a fresh start: total used free shared buffers cached Mem: 7459 1483 5975 0 63 730 -/+ buffers/cache: 689 6769 Swap: 9536 0 9536 Two more helpful outputs are provided by memstat -u. Shortly before the crash: User Count Swap USS PSS RSS mail 1 0 200 207 616 whoopsie 1 764 740 817 2300 colord 1 3200 836 894 2156 root 62 70404 352996 382260 569920 izzy 80 177508 1465416 1519266 1851840 After having X killed: User Count Swap USS PSS RSS mail 1 0 184 188 356 izzy 1 1400 708 739 1080 whoopsie 1 848 668 826 1772 colord 1 3204 804 888 1728 root 62 54876 131708 149950 267860 And after a restart, back in X: User Count Swap USS PSS RSS mail 1 0 212 217 628 whoopsie 1 0 1536 1880 5096 colord 1 0 3740 4217 7936 root 54 0 148668 180911 345132 izzy 47 0 370928 437562 915056 Edit: Just added two graphs from my monitoring system. Interesting to see: everytime when there's a "jump" in memory consumption, CPU peaks as well. Just found this right now -- and it reminds me of another indicator pointing to X itself: Often when returning to my machine and unlocking the screen, I found something doing heavvy work on my CPU. Checking with top, it always turned out to be /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none. So after this long explanation, finally my questions: What could be the possible causes? How can I better identify involved processes/applications? What steps could be taken to avoid this behaviour -- short from rebooting the machine all X days? I was running 8.04 (Hardy) for about 5 years on my old machine, never having experienced the like (always more than 100 days uptime, before rebooting for e.g. kernel updates). This now is a complete new machine with a fresh install of 8.04. In case it matters, some specs: AMD A4-3400 APU with Radeon(tm) HD Graphics, using the open-source ati/radeon driver (so no fglrx installed), 8GB RAM, WDC WD1002FAEX-0 hdd (1TB), Asus F1A75-V Evo mainboard. Ubuntu 12.04 64-bit with KDE4/Plasma. Apps usually open more or less permanently include Evolution, Firefox, konsole (with Midnight Commander running inside, about 4 tabs), and LibreOffice -- plus occasionally Calibre, Gimp and Moneyplex (banking software I'm already using for almost 20 years now, in a version which did fine on Hardy).

    Read the article

  • SQL SERVER – Renaming Index – Index Naming Conventions

    - by pinaldave
    If you are regular reader of this blog, you must be aware of that there are two kinds of blog posts 1) I share what I learn recently 2) I share what I learn and request your participation. Today’s blog post is where I need your opinion to make this blog post a good reference for future. Background Story Recently I came across system where users have changed the name of the few of the table to match their new standard naming convention. The name of the table should be self explanatory and they should have explain their purpose without either opening it or reading documentations. Well, not every time this is possible but again this should be the goal of any database modeler. Well, I no way encourage the name of the tables to be too long like ‘ContainsDetailsofNewInvoices’. May be the name of the table should be ‘Invoices’ and table should contain a column with New/Processed bit filed to indicate if the invoice is processed or not (if necessary). Coming back to original story, the database had several tables of which the name were changed. Story Continues… To continue the story let me take simple example. There was a table with the name  ’ReceivedInvoices’, it was changed to new name as ‘TblInvoices’. As per their new naming standard they had to prefix every talbe with the words ‘Tbl’ and prefix every view with the letters ‘Vw’. Personally I do not see any need of the prefix but again, that issue is not here to discuss.  Now after changing the name of the table they faced very interesting situation. They had few indexes on the table which had name of the table. Let us take an example. Old Name of Table: ReceivedInvoice Old Name of Index: Index_ReceivedInvoice1 Here is the new names New Name of Table: TblInvoices New Name of Index: ??? Well, their dilemma was what should be the new naming convention of the Indexes. Here is a quick proposal of the Index naming convention. Do let me know your opinion. If Index is Primary Clustered Index: PK_TableName If Index is  Non-clustered Index: IX_TableName_ColumnName1_ColumnName2… If Index is Unique Non-clustered Index: UX_TableName_ColumnName1_ColumnName2… If Index is Columnstore Non-clustered Index: CL_TableName Here ColumnName is the column on which index is created. As there can be only one Primary Key Index and Columnstore Index per table, they do not require ColumnName in the name of the index. The purpose of this new naming convention is to increase readability. When any user come across this index, without opening their properties or definition, user can will know the details of the index. T-SQL script to Rename Indexes Here is quick T-SQL script to rename Indexes EXEC sp_rename N'SchemaName.TableName.IndexName', N'New_IndexName', N'INDEX'; GO Your Contribute Please Well, the organization has already defined above four guidelines, personally I follow very similar guidelines too. I have seen many variations like adding prefixes CL for Clustered Index and NCL for Non-clustered Index. I have often seen many not using UX prefix for Unique Index but rather use generic IX prefix only. Now do you think if they have missed anything in the coding standard. Is NCI and CI prefixed required to additionally describe the index names. I have once received suggestion to even add fill factor in the index name – which I do not recommend at all. What do you think should be ideal name of the index, so it explains all the most important properties? Additionally, you are welcome to vote if you believe changing the name of index is just waste of time and energy.  Note: The purpose of the blog post is to encourage all to participate with their ideas. I will write follow up blog posts in future compiling all the suggestions. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Index, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

    Read the article

  • Cannot run update due to a dpkg error with burg-theme-minimal-sir

    - by boywithaxe
    I cannot run an update or indeed run $: apt-get remove due to a dpkg error with a package that's a part of super-boot-manager. Running an update returns: dpkg: error processing burg-theme-minimal-sir (--configure): subprocess installed post-installation script returned error exit status 1 I tried removing this package alone, with the same error, also trying to remove super-boot-manager returns: (Reading database ... 225474 files and directories currently installed.) Removing burg-theme-minimal-sir ... Generating burg.cfg ... /usr/sbin/burg-probe: error: cannot stat `/boot/burg/locale'. No path or device is specified. Try `/usr/sbin/burg-probe --help' for more information. dpkg: error processing burg-theme-minimal-sir (--remove): subprocess installed post-removal script returned error exit status 1 No apport report written because MaxReports is reached already Removing super-boot-manager ... Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf.index... Processing triggers for desktop-file-utils ... Processing triggers for gnome-menus ... Processing triggers for hicolor-icon-theme ... Errors were encountered while processing: burg-theme-minimal-sir E: Sub-process /usr/bin/dpkg returned an error code (1) I'm sort of stuck now and Google has failed me. Has anyone encountered this problem before? Or does anyone know a way for fixing this?

    Read the article

  • XNA C# Platformer - physics engine or tile based?

    - by Hugh
    I would like to get some opinions on whether i should develop my game using a physics engine (farseer physics seems to be the best option) or follow the traditional tile-based method. Quick background: - its a college project, my first game, but have 4 years academic programming experience - Just want a basic platformer with a few levels, nothing fancy - want a shooting mechanic, run and gun, just like contra or metal slug for example - possibly some simple puzzles I have made a basic prototype with farseer, the level is hardcoded with collisions and not really tiled, more like big full-screen sized tiles, with collision bodies drawn manually along the ground and walls etc. My main problem is i want a simple retro feel to the jumping and physics but because its a physics simulation engine its going to be realistic, whereas typical in air controllable physics for platformers arent realistic. I have to make a box with wheel body fixture under it to have this effect and its glitchy and doesnt feel right. I chose to use a physics engine because i tried the tile method initially and found it very hard to understand, the engine took care of alot things to save me time, mainly being able to do slopes easily was nice and the freedom to draw collision bounds wherever i liked, rather then restricted to a grid, which gave me more freedom for art design also. In conclusion i don't know which method to pick, i want to use a method which will be the most straight forward way to implement and wont give me a headache later on, preferably a method which has an abundance of tutorials and resources so i dont get "stuck" doing something which has been done a million times before! Let me know i haven't provided enough information for you to help me! Thanks in advance, Hugh.

    Read the article

  • Request Tracker 4.x on Ubuntu 12.04

    - by rihatum
    I have a Ubuntu 12.04 server installed on my machine. I am trying to install request-tracker4. Here's what I have done so far : a) Installed request-tracker via "sudo apt-get install request-tracker4" b) I then tried configuring RT_SiteConfig.pm in /etc/request-tracker4 but then ran into problems in populating the MySQL database. c) I then did sudo dpkg-reconfigure request-tracker4 d) It solved my problems of not being able to populate / setup mysql etc. e) Now, I am trying to setup rt under www.mydomain.com/rt I have read various how-to's and bestpractical's own guides but I am not very much a expert in Apache configurations so stuck. My Current Ubuntu 12.04 server setup: Apache2, Fastcgi installed (checked in /etc/apache2/mods-enabled Web Server document root is default /var/www/ Web user www-data Question is : 1 ) Where and What shall I put in Apache configuration to start using RT via the web-interface ? I have seen two files in /etc/request-tracker4/ apache2-fastcgi.conf and apache2-fcgid.conf I even tried making a ln -s apache2-fastcgi.conf /etc/apache2/conf.d but when I tried opening that file in root while in the conf.d directory it said too many levels. Any request tracker experts on ubuntu ?:-) Your help will be very useful and appreciated Thanks Please let me know if you need further info !

    Read the article

  • Bad at math, feeling limited

    - by Peter Stain
    Currently I'm a java developer, making websites. I'm really bad at math, in high school I got suspened because of it once. I didn't program then and had no interest in math. I started programming after high school and started feeling that my poor math skills are limiting me. I feel like the programming's not that hard for me. Though web development in general is not that hard, i guess. I've been doing Spring and Hibernate a lot. What i'm trying to ask is : if I understand and can manage these technologies and programming overall, would it mean that I have some higher than average prerequisite for math and details? Would there be any point or would it be easy for me to take some courses in high school math and get a BSc in math maybe? This web development is really starting to feel like not my cup of tea anymore, i would like to do something more interesting. I'm 25 now and feel like stuck. Any help appreciated.

    Read the article

  • How best to deal with the frustration that you encounter at the beginning of learning to code [closed]

    - by coderboy
    I am right now a newbie on the job learning to code in Cocoa . In the beginning I decided that I would try and understand everything I was doing . But right now I just feel like a clueless wizard chanting some spells . Its all just a matter of googling the right incantation . Frequently getting stuck and having to google for answers is proving to be a major demotivator for me . I know that this will get better over time but still I feel that somewhere , somehow I'm just approaching things the wrong way . I sit there stumped and then finally just look at sample code from Apple and I go Wow ! This is so logical and well structured ! . But just reading it is not going to get me to that level . So I would like to know , how do you guys approach learning something new . Do you read the whole documentation first , or do you read sample code or maybe its just about making lots of small programs first ?

    Read the article

  • Lenovo S110 netbook screen resolution Ubuntu

    - by Neigyl R. Noval
    I am still stuck with 800x600 resolution. Here is the output of lspci: 00:00.0 Host bridge: Intel Corporation Device 0bf2 (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Device 0be2 (rev 09) 00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02) 00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 02) 00:1c.2 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 3 (rev 02) 00:1d.0 USB Controller: Intel Corporation N10/ICH7 Family USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 02) 00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 02) 00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) 00:1f.0 ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 02) 00:1f.2 SATA controller: Intel Corporation N10/ICH7 Family SATA AHCI Controller (rev 02) 00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 02) 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05) 02:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device 8176 (rev 01) Also, I tried modifying /usr/lib/X11/xorg.conf.d/10-monitor.conf to fix this problem, but still does not work: Section "Monitor" Identifier "Monitor0" VendorName "Monitor Vendor" ModelName "Monitor Model" EndSection Section "Screen" Identifier "Screen0" Monitor "Monitor0" Device "Card0" SubSection "Display" Viewport 0 0 Depth 1 Modes "1024x768" EndSubSection SubSection "Display" Viewport 0 0 Depth 4 Modes "1024x768" EndSubSection SubSection "Display" Viewport 0 0 Depth 8 Modes "1024x768" EndSubSection SubSection "Display" Viewport 0 0 Depth 15 Modes "1024x768" EndSubSection SubSection "Display" Viewport 0 0 Depth 16 Modes "1024x768" EndSubSection SubSection "Display" Viewport 0 0 Depth 24 Modes "1024x768" EndSubSection EndSection Section "Device" Identifier "Card0" Driver "vesa" VendorName "Intel Corporation Device" EndSection I'm using Gnome. System Preference Monitor screen resolution sticks to 800x600. What am I going to do?

    Read the article

  • How can I rank teams based off of head to head wins/losses

    - by TMP
    I'm trying to write an algorithm (specifically in Ruby) that will rank teams based on their record against each other. If a team A and team B have won the same amount of games against each other, then it goes down to point differentials. Here's an example: A beat B two times B beats C one time A beats D three times C bests D two times D beats C one time B beats A one time Which sort of reduces to A[B] = 2 B[C] = 1 A[D] = 3 C[D] = 2 D[C] = 1 B[A] = 1 Which sort of reduces to A[B] = 1 B[C] = 1 A[D] = 3 C[D] = 1 D[C] = -1 B[A] = -1 Which is about how far I've got I think the results of this specific algorithm would be: A, B, C, D But I'm stuck on how to transition from my nested hash-like structure to the results. My psuedo-code is as follows (I can post my ruby code too if someone wants): For each game(g): hash[g.winner][g.loser] += 1 That leaves hash as the first reduction above hash2 = clone of hash For each key(winner), value(losers hash) in hash: For each key(loser), value(losses against winner): hash2[loser][winner] -= losses Which leaves hash2 as the second reduction Feel free to as me question or edit this to be more clear, I'm not sure of how to put it in a very eloquent way. Thanks!

    Read the article

< Previous Page | 190 191 192 193 194 195 196 197 198 199 200 201  | Next Page >