Search Results

Search found 26530 results on 1062 pages for 'number formatting'.

Page 601/1062 | < Previous Page | 597 598 599 600 601 602 603 604 605 606 607 608  | Next Page >

• low performance on HPC cluster (sge) when running multiple jobs

  - by Yotam

  O know this is a long-shot but I'm clueless here. I'm running several computer simulations on High Performance Computation cluster (HPC) of oracale grid engine (sge). A single job runs at a certain speed (roughly 80 steps per second) when I add jobs to the machine, at a certain treshhold, the speed is recuded by two. On one machine (I don't know the cpu kind) the treshold is 11 jobs for 16 cpu's. On another one with the same number and kind of cpu's , the treshold is 8. I thought at first that this is a memory issue but each job takes about 60MB - 100MB and I have 16GB of ram on each of those machine. Did any of you encountered such a problem? is there any way to analyz this? Thanks.

  Read the article

• Routing to various node.js servers on same machine

  - by Dtang

  I'd like to set up multiple node.js servers on the same machine (but listening on different ports) for different projects (so I can pull any down to edit code without affecting the others). However I want to be able to access these web apps from a browser without typing in the port number, and instead map different urls to different ports: e.g. 45.23.12.01/app - 45.23.12.01:8001. I've considered using node-http-proxy for this, but it doesn't yet support SSL. My hunch is that nginx might be the most suitable. I've never set up nginx before - what configuration do I need to do? The examples of config files I've seen only deal with subdomains, which I don't have. Alternatively, is there a better (stable, hassle-free) way of hosting multiple apps under the same IP address?

  Read the article

• What relationship do software Scrum or Lean have to industrial engineering concepts like theory of constraints?

  - by DeveloperDon

  In Scrum, work is delivered to customers through a series of sprints in which project work is time boxed to a fixed number of days or weeks, usually 30 days. In lean software development, the goal is to deliver as soon as possible, permitting early feedback for the next iteration. Both techniques stress the importance of workflow in which software work product does not accumulate in development awaiting release at some future date. Both permit new or refined requirements and feedback from QA and customers to be acted on with as little delay as possible based on priority. A few years ago I heard a lecture where the speaker talked briefly about a family of concepts from industrial engineering called theory of constraints. In the factory, they use an operations model based on three components: drum, buffer, and rope. The drum synchronizes work product as it flows through the system. Buffers that protect the system by holding output from one stage as it waits to be consumed by the next. The rope pulls product from one work station to the next. Historically, are these ideas part of the heritage of Scrum and Lean, or are they on a separate track? It we wanted to think about Scrum and Lean in terms of drum-buffer-rope, what are the parts? Drum = {daily scrum meeting, monthly release)? Buffer = {burn down list, source control system)? Rope = { daily meeting, constant integration server, monthly releases}? Industrial engineers define work flow in terms of different kinds of factories. I-Factories: straight pipeline. One input, one output. A-Factories: many inputs and one output. V-Factories: one input, many output products. T-Plants: many inputs, many outputs. If it applies, what kind of factory is most like Scrum or Lean and why?

  Read the article

• *Browsing* iTunes University

  - by Kristina

  I recently discovered iTunes U and have been downloading a number of lectures, but I'd like to find more stuff in areas I'm interested in and iTunes U seems to want none of it. When I select a category of content to choose from - let's say Science - Physics - the only choices for browsing I seem to have are "Featured" and "New and Notable." I've looked around online and discovered that even the "See All" for these sections only shows a subsection of the entire collection for that category. There doesn't seem to be a regular "Browse" option like you would expect to find in such an application. Or is there? Does anyone here know if there is such a feature and, if so, where I can find it?

  Read the article

• Speed up loading of test results from builds in Visual Studio

  - by Jakob Ehn

  I still see people complaining about the long time it takes to load test results from a TFS build in Visual Studio. And they make a valid point, it does take a very long time to load the test results, even for a small number of tests. The reason for this is that the test results is not just the result of the test run but also all the binaries that were part of the test run. This often also means that the debug symbols (*.pdb) will be downloaded to your local machine. This reason for this behaviour is that it letsyou re-run the tests locally. However, most of the times this is not what the developer will do, they just want to know which tests failed and why. They can then fix the tests and rerun them locally. It turns out there is a way to load only the test results, which is much faster. The only tricky bit is to find the location of the .trx file that is generated during the build. Particularly in TFS 2010 where you often have multiple build agents, which of corse results in different paths to the trx file. Note: To use this you must have read permission to the build folder on the build agent where the build was executed. Open the build result for the build Click View Log Locate the part where MSTest is invoked. When using test containers, it looks like this:   Note: You can actually search in the log window, press Ctrl+F and you will get a little search box at the bottom. Nice! On the MSTest command line call, locate the /resultsfileroot parameter, which points to the folder where the test results are stored Note that this path is local for the build server, so you need to replace the drive letter with the server name: D:\Builds\Project\TestResults to \Project\TestResults">\\<BuildServer>\Project\TestResults Double-click on the .trx file and you will notice that it loads much faster compared to opening it from the build log window

  Read the article

• Avoiding Object Oriented Pitfalls, Migrating from C, What Worked for You?

  - by Stephen

  I've been programming in procedural languages for quite some time now, and my first reaction to a problem is to start breaking it down into tasks to perform rather than to consider the different entities (objects) that exist and their relationships. I have had a university course in OOP, and understand the fundamentals of encapsulation, data abstraction, polymorphism, modularity and inheritance. I read Learning to think in the Object Oriented Way and Learning object oriented thinking, and will be looking at some of the books pointed to in those answers. I think that several of my medium to large sized projects will benefit from effective use of OOP but as a novice I would like to avoid time consuming, common errors. Based on your experiences, what are these pitfalls and what are reasonable ways around them? If you could explain why they are pitfalls, and how your suggestion is effective in addressing the issue it'd be appreciated. I'm thinking along the lines of something like "Is it common to have a fair number of observer and modifier methods and use private variables or are there techniques for consolidating/reducing them?" I'm not worried about using C++ as a pure OO language, if there are good reasons to mix methods. (Reminiscent of the reasons to use GOTOs, albeit sparingly.) Thank you!

  Read the article

• LCD problems: brightness / contrast blown out, can't bring up menu

  - by davr

  Yesterday, when I turned on my LCD monitor, the colors were very very bright. It looks as if someone had gone into the monitor on-screen-display and turned up brightness & contrast all the way to the max. Colors were washed out, and it's almost painful to look at. So I tried to go into the menu and see if the settings were wrong somehow...and I found that I cannot bring up the menu. All the buttons on the front of the monitor now do nothing, except the power button. I was able to go into my graphics card settings, and turn the brightness way down to compensate, so it's at least usable for now, but it's not quite right, there is definitely some loss of color resolution or something from the two extreme settings canceling each other out. Any ideas what kind of failure in the LCD might cause this? According to the control panel, the model number is: KL2490DW-D It's a 24" 1920x1200 with the brand "synaps".

  Read the article

• Collaborative data modelling software?

  - by at01

  I'm trying to find a tool where a lot of people can work on a data model collaboratively. Embarcadero has a an ER application called ER/studio which apparently comes with a repository system that acts like typical version control software. That sounds great except ER/studio is expensive and this is a non-profit and open source organization where we encourage members to even contribute small changes. What's the best solution? Either downloadable software or a web service would work. We don't mind paying, but the cost can't go up with the number of participants...

  Read the article

• Given a database table where multiple rows have the same values and only the most recent record is to be returned

  - by Jim Lahman

  I have a table where there are multiple records with the same value but varying creation dates.  A sample of the database columns is shown here:   1: select lot_num, to_char(creation_dts,'DD-MON-YYYY HH24:MI:SS') as creation_date 2: from coil_setup 3: order by lot_num   LOT_NUM                        CREATION_DATE        ------------------------------ -------------------- 1435718.002                    24-NOV-2010 11:45:54 1440026.002                    17-NOV-2010 06:50:16 1440026.002                    08-NOV-2010 23:28:24 1526564.002                    01-DEC-2010 13:14:04 1526564.002                    08-NOV-2010 22:39:01 1526564.002                    01-NOV-2010 17:04:30 1605920.003                    29-DEC-2010 10:01:24 1945352.003                    14-DEC-2010 01:50:37 1945352.003                    09-DEC-2010 04:44:22 1952718.002                    25-OCT-2010 09:33:19 1953866.002                    20-OCT-2010 18:38:31 1953866.002                    18-OCT-2010 16:15:25   Notice that there are multiple instances of of the same lot number as shown in bold. To only return the most recent instance, issue this SQL statement: 1: select lot_num, to_char(creation_date,'DD-MON-YYYY HH24:MI:SS') as creation_date 2: from 3: ( 4: select rownum r, lot_num, max(creation_dts) as creation_date 5: from coil_setup group by rownum, lot_num 6: order by lot_num 7: ) 8: where r < 100  LOT_NUM                        CREATION_DATE        ------------------------------ -------------------- 2019416.002                    01-JUL-2010 00:01:24 2022336.003                    06-OCT-2010 15:25:01 2067230.002                    01-JUL-2010 00:36:48 2093114.003                    02-JUL-2010 20:10:51 2093982.002                    02-JUL-2010 14:46:11 2093984.002                    02-JUL-2010 14:43:18 2094466.003                    02-JUL-2010 20:04:48 2101074.003                    11-JUL-2010 09:02:16 2103746.002                    02-JUL-2010 15:07:48 2103758.003                    11-JUL-2010 09:02:13 2104636.002                    02-JUL-2010 15:11:25 2106688.003                    02-JUL-2010 13:55:27 2106882.003                    02-JUL-2010 13:48:47 2107258.002                    02-JUL-2010 12:59:48 2109372.003                    02-JUL-2010 20:49:12 2110182.003                    02-JUL-2010 19:59:19 2110184.003                    02-JUL-2010 20:01:03

  Read the article

• SQL SERVER – A Puzzle Part 2 – Fun with SEQUENCE in SQL Server 2012 – Guess the Next Value

  - by pinaldave

  Before continuing this blog post – please read the first part of the SEQUENCE Puzzle here A Puzzle – Fun with SEQUENCE in SQL Server 2012 – Guess the Next Value. Where we played a simple guessing game about predicting next value. The answers the of puzzle is shared on the blog posts as a comment. Now here is the next puzzle based on yesterday’s puzzle. First execute the script which I have written here. The only difference between yesterday’s script is that I have removed the MINVALUE as 1 from the syntax. Now guess what will be the next value as requested in the query. USE TempDB GO -- Create sequence CREATE SEQUENCE dbo.SequenceID AS BIGINT START WITH 3 INCREMENT BY 1 MAXVALUE 5 CYCLE NO CACHE; GO -- Following will return 3 SELECT next value FOR dbo.SequenceID; -- Following will return 4 SELECT next value FOR dbo.SequenceID; -- Following will return 5 SELECT next value FOR dbo.SequenceID; -- Following will return which number SELECT next value FOR dbo.SequenceID; -- Clean up DROP SEQUENCE dbo.SequenceID; GO Above script gave me following resultset. 3 is the starting value and 5 is the maximum value. Once Sequence reaches to maximum value what happens? and WHY? I (kindly) suggest you try to attempt to answer this question without running this code in SQL Server 2012. I am very confident that irrespective of SQL Server version you are running you will have great learning. I will follow up of the answer in comments below. Recently my friend Vinod Kumar wrote excellent blog post on SQL Server 2012: Using SEQUENCE, you can head over there for learning sequence in details. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Puzzle, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

  Read the article

• Using windowmaker with quartz-wm in proxy mode on Snow Leopard

  - by Graham Lee

  I can modify my .xinitrc file to exec /opt/local/bin/wmaker, and get WindowMaker 0.90.2 as my window manager in X11.app. I'd like to use quartz-wm not as a window manager, but to provide the pasteboard integration with Aqua using the --only-proxy flag (see the man page). If I add the following line to .xinitrc: exec /usr/bin/quartz-wm --only-proxy & then WindowMaker never starts, complaining that there's already a window manager running. Is it possible to get the two to play nicely together, or is proxy feature part of the Xquartz server now? It seems that the Xquartz manpage has a number of pasteboard-to-clipboard synchronisation settings, but it's not clear whether quartz-wm needs to be running for those to work.

  Read the article

• How do I extract all the files in a VHD to a hard disk including permissions?

  - by Middletone

  I'd like to know wha thte best way is to make an exact copy of a vhd image and pu tit onto my hard disk. I've tried xcopy but there seems to be a number of issues rlated to permissions when doing this. Ideally I'd like to copy the bits so that they match exactly on the new drive. I encountered this when trying to restore a vista backup only to discover the idiots work who decided to not let me restore a 400 gig image to a 1 TB drive size. I've sucessfully mounted the drive in Win 7 which is the environment in which I'm trying ot copy these files.

  Read the article

• When does the "Do One Thing" paradigm become harmful?

  - by Petr

  For the sake of argument here's a sample function that prints contents of a given file line-by-line. Version 1: void printFile(const string & filePath) { fstream file(filePath, ios::in); string line; while (file.good()) { getline(file, line); cout << line << endl; } } I know it is recommended that functions do one thing at one level of abstraction. To me, though code above does pretty much one thing and is fairly atomic. Some books (such as Robert C. Martin's Clean Code) seem to suggest breaking the above code into separate functions. Version 2: void printLine(const string & line) { cout << line << endl; } void printLines(fstream & file) { string line; while (file.good()) { getline(file, line); printLine(line); } } void printFile(const string & filePath) { fstream file(filePath, ios::in); printLines(file); } I understand what they want to achieve (open file / read lines / print line), but isn't it a bit of overkill? The original version is simple and in some sense already does one thing - prints a file. The second version will lead to a large number of really small functions which may be far less legible than the first version. Wouldn't it be, in this case, better to have the code at one place? At which point does the "Do One Thing" paradigm become harmful?

  Read the article

• Introduction to the ADF Debugger

  - by Shay Shmeltzer

  Not that you'll ever need this blog entry - after all there are never bugs in the code that YOU write. But maybe one day one of your peers will ask you for help debugging their ADF application so here we go... One of the cool features of JDeveloper and ADF is the ADF Debugger - a way to debug the declarative pars of Oracle ADF. The debugger goes beyond your regular Java debugger and shows you in a clear way specific information related to Oracle ADF - things like where are you in the taskflow/region hierarchy, what is in your various scopes, what is the value of a specific EL and much more. However, from the number of posts on OTN where people are saying "I placed a System.out.println() to see what the value was...", it seems that not many are familiar with the power of the debugger. So here is a short demo that shows you some aspects of the debugger such as: Setting breakpoints on various ADF artifacts The ADF structure window The ADF Data window The EL Evaluater window Want to learn more about debugging ADF applications - I highly recommend that you go back in time to 2009 and attend Steve Muench's OOW presentation about ADF debugging. Can't travel in time yet? Then the second best option is to look at his very clear ADF Debugging Slides, which were the inspiration to the above demo.

  Read the article

• associate dhcp requests with subdomains in dnsmasq

  - by Dezra

  I have dnsmasq running as a dns server with a number of linux boxes using static ips that run several virtual hosts on subdomains. I currently have the following address line in my dnsmasq.conf to map the subdomain of a boxes address to the boxes static ip: address=/.devbox1.mydomain.com/192.168.1.3 address=/.devbox2.mydomain.com/192.168.1.4 e.g. site1.devbox1.mydomain.com > maps to devbox1 static ip, site1 virtual host site2.devbox1.mydomain.com > maps to devbox1 static ip, site2 virtual host site3.devbox2.mydomain.com > maps to devbox2 static ip, site3 virtual host I was wondering if I can change the machines over to DHCP addresses (instead of static) and have dnsmasq use the dhcp ip instead of the static one? Can I modify the address line to refer to the DHCP address (obviously, I cant hardcode the address)? I know I could add mac address to ip allocation, but I want to avoid this if possible.

  Read the article

• Postfix throttling for outgoing messages

  - by Sergey Kovalev

  I need Postfix to send outgoing messages (from local PHP) with a certain rate. Say, one message in 120 seconds. Any messages exceeding this rate should be queued (delayed) and delivered later. Policyd is not what I'm looking for. I don't need limiting overall number of messages sent. I need a pause (120s) between any two messages beeing sent. Tried this config, but it's not working: initial_destination_concurrency = 1 default_destination_concurrency_limit = 1 default_destination_rate_delay = 120 default_destination_recipient_limit = 1 default_process_limit = 1 Any suggestions?

  Read the article

• Minimum power requirement for VGA vs. its working

  - by Shiki

  Got a new XFX GTX260^2 video card. The only problem is the "Minimum power" is 500W on the box. I've got a Chieftec 450AA PSU with just a minimal number of attached stuff (1hdd, WD green; 6gb (4module) ram; dvd writer). Bought a cable for the 6pin power input on the card. Got picture, works in every aspect. Still. Should I get a new PSU (like a Corsair or Antec 600W)? Will the card perform slower with this PSU? (Yeah the last part is a particular question but in I'm also asking in generic. I was wondering about this so many times and I hope we'll put and end for this question for once and for all.)

  Read the article

• Inconsistent booting problem 12.04LTS on Asus U46E RAL7

  - by G. He

  The laptop is dual booting with windows 7 and ubuntu 11.10. For 11.10 to boot, I had to add 'nolapic' in GRUB boot options. I downloaded 12.04LTS LiveCD yesterday and made a CD and a bootable USB stick. With both USB and LiveCD, occasionally I can boot into 12.04. But many times, the boot process stuck at some point. For USB boot, sometime it works. But other times, it seems to stuck right after seeing the message: NMI watchdog enabled. takes one hw-pmu counted [0.408590] #2 The number in [] changes. Some times it stuck at #2, and sometimes at #3. For LiveCD boot, sometime it works. But when it stuck, it stuck at different places. At times, the boot process go directly to a blank screen with a blink '_' at up left corner. Sometime it went a bit further, after showing options to try/install ubuntu then stuck with a blank screen with blink '_'. Anything I can do to get around of this?

  Read the article

• monitoring TCP/IP performance on Solaris

  - by Andy Faibishenko

  I am trying to tune a high message traffic system running on Solaris. The architecture is a large number (600) of clients which connect via TCP to a big Solaris server and then send/receive relatively small messages (.5 to 1K payload) at high rates. The goal is to minimize the latency of each message processed. I suspect that the TCP stack of the server is getting overwhelmed by all the traffic. What are some commands/metrics that I can use to confirm this, and in case this is true, what is the best way to alleviate this bottleneck?

  Read the article

• Version control and branching when using Oracle

  - by Ed Woodcock

  Hi folks: At work we're using Oracle and C#/ASP.net to handle a customer's website, this site is very large-scale so the database is very large. We use Perforce for our version control, and tack create or replace scripts to FogBugz cases whenever a database change, which has been fine until now, as we are now at a point where five developers are working on five expansions for the system, each on a seperate Perforce branch. Unfortunately, we cannot get duplicate databases, due to the database size, so everyone is still working from the same one. This is obviously a cause of problems: only ten minutes ago we had a bit of an issue where a stored procedure change for a branch propagated over to the Pre-Production server and caused a large number of crashes for the testers. Ideally, we would like a way to track these changes without having to manually keep track of them through FogBugz. My question is: how do you lot handle this situation? I'm sure there must be a good way by now to handle versioning, or at least tracking changes, in an Oracle database.

  Read the article

• Rsync plugin to many local wordpress installs via script or cli

  - by Nick Abbey

  I am maintaining a large number of wordpress installs on a production server, and we are looking to deploy InfiniteWP for managing these installs. I am looking for a way to script the distribution of the plugin folder to all of these installs. On server wp-prod, all sites are stored in /srv//site/ The plugin needs to be copied from ~/iws-plugin to /srv//site/wp-content/plugins/ Here's some pseudo code to explain what I need to do: array dirs = <all folders in /srv> for each d in dirs if exits "/srv/d/site/wp-content/plugins" rsync -avzh --log-file=~/d.log ~/plugin_base_folder /srv/d/site/wp-content/plugins/ else touch d.log echo 'plugin folder for "d" not found' >> ~/d.log end end I just don't know how to make it happen from the cli or via bash. I can (and will) tinker with a bash or ruby script on my test server, but I'm thinking the command-line-fu here on SF is strong enough to handle this issue much more quickly than I can hack together a solution. Thanks!

  Read the article

• Simple web-frontend for remote svn administration?

  - by Stefan Lasiewski

  We run a SVN repository. Some of our more advanced users need to be able to perform some SVN administration without relying on the system administrator. They need to be able to do things like create SVN repositories, delete SVN repositories,, and perform commands like 'svnadmin dump' and 'svnadmin load'. We'd like to avoid SSH access on these FreeBSD machines, and would rather provide a service interface through a Web UI. I'm looking for a simple script (or a small number of scripts) which use Perl or PHP. I found svnadmin or svnadmin.pl, but was hoping to find something with a larger user community or which has been recommended by others. It looks like Trac allows SVN administration, but comes with may more features then we need.

  Read the article

• DNS and RPC Unavailable

  - by Berek Bryan

  I have a server that is host a MSSQL database and some other server related tasks. The server communicaties with a large number of devices. The devices send data to the server. The communication links are down between the devices on the intranet and to the outside world. However it seems I can ping and can be pinged from machines on the same switch. This includes the DNS Servers. When I run, C:\ipconfig /registerdns I get RPC Server is Unavailable. So, it seems that the server can not verify the DNS server. Both DNS server are up and running. No other machines are affected on the network.

  Read the article

• Implmenting RLE into a tilemap or how to create a large 3D array?

  - by Smallbro

  Currently I've been using a 3D array for my tiles in a 2D world but the 3D side comes in when moving down into caves and whatnot. Now this is not memory efficient and I switched over to a 2D array and can now have much larger maps. The only issue I'm having now is that it seems that my tiles cannot occupy the same space as a tile on the same z level. My current structure means that each block has its own z variable. This is what it used to look like: map.blockData[x][y][z] = new Block(); however now it works like this map.blockData[x][y] = new Block(z); I'm not sure why but if I decide to use the same space on say the floor below it wont allow me to. Does anyone have any ideas on how I can add a z-axis to my 2D array? I'm using java but I reckon the concept carries across different languages. Edit: As Will posted, RLE sounds like the best method for achieving a fast 3D array. However I'm struggling to understand how I would even start to implement it? Would I create a 4D array the 4th being something which controls how many to skip? Or would the x-axis simply change altogether and have large gaps in between - for example [5][y][z] would skip 5 tiles? Is there something really obvious here which I am missing? The number of z levels I'm trying to have is around 66, it would be preferably that I can have up to or more than 1000 in x and y.

  Read the article

• Export-Mailbox - "an unknown error has occurred"

  - by grojo

  I am trying to move messages from a rather large mailbox to an archive mailbox. However I run into errors all the time. the command I am executing is Export-Mailbox -Identity MAILBOX_FROM -TargetMailbox ARCHIVE -TargetFolder ARCHIVE_FOLDER -StartDate 2009-02-01 -EndDate 2009-02-28 -DeleteContent -Confirm:$false I can copy/move some messages, but run into frequent "an unknown error has occurred" (statuscode -1056749164) I run the console as administrative user, and all permissions are set right, as far as I can tell. I've restricted the start and end dates in case the number of messages moved/deleted should create problems. Anything I am missing in my setup? Corrupted messages? Over-limit message sizes?

  Read the article

< Previous Page | 597 598 599 600 601 602 603 604 605 606 607 608  | Next Page >