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• How do I use memmap to reserve memory on boot?

  - by alexl

  Ive got a laptop with some corrupted ram addresses, so I'm trying to use memmap to reserve them before linux boots up. Ive been trying to use memmap=10M$1024M' as a kernel boot option, but linux crashes (with no errors) and restarts. If I use a different syntax for memmap likememmap=1023M@0M` it boots fine. Do I have to specify a certain size block to reserve or could my kernel version not support reserving memory with memmap? Maybe I'm better off using memmap=exactmap, and if so, could somebody point me to a good faq on how to use it?

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• Windows server 2008 UPS support

  - by Rory McCune

  I'm looking to set-up a UPS on a Windows Small Business Berver 2k8 and I've noticed that there are some large price differences for similar capacity in-line UPSs. The most important point for me in UPS selection is that the server should have the ability to shut itself down before the UPS power runs out, so that if the server is unattended during the outage, it should minimize the risk of data loss. From some reading it appears that Windows Server 2008 should has the ability to natively recognise a UPS, which can then be managed through the battery settings on the server or via WMI. What I'm wondering if anyone know is, Is Windows 2008 servers UPS support specific to certain brands of UPS (eg, APC) or is it likely to work with any UPS which has a USB port, which I can connect to the server?

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• Connect android to database

  - by danny

  I am doing a school project where we need to create an android application which needs to connect to a database. the application needs to gain and store information for people's profiles on the database. But unfortunatly we are a little bit stuck at this point because there are numerous ways to link the application such as http request through apache or through the SOAP/REST protocol. But it's really hard to find good instructions or tutorials on the problem since I can't really find them. Maybe that's cause i'm probably using the wrong words on google. Unfortunately I have little relevant information. So if anyone can help me with finding relevant links to good online tutorials or howto's than those are very welcome.

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• Spreading incoming batched data into a real-time stream

  - by pr1001

  I would like to display some events in 'real-time'. However, I must fetch the data from another source. I can request the last X minutes, though the source is updated approximately every 5 minutes. This means that there will be a delay between the most recent data retrieved and the point in time that I make the request. Second, because I will be receiving a batch of data, I don't want to just fire out all the events down a socket once my fetcher has retrieved it: I would like to spread out the events so that they are both accurately spaced amongst each other and in sync with their original occurrences (e.g. an event is always displayed 6 minutes after it actually happened). My thought is to fetch the data every 5 minutes from the source, knowing that I won't get the very latest data. The original data would be then queued to be sent down the socket 7.5 minutes from its original timestamp – that is, at least ~2.5 minutes from when its batch was fetched and at most 7.5 minutes since then. My question is this: is this the best way to approach the problem? Does this problem have any standard approaches or associated literature related to implementation best-practices and edge cases? I am a bit worried that the frequency of my fetches and the frequency in which the source is updated will get out of sync, leading to points where no data will be retrieved from the source. However, since my socket delay is greater than my fetch frequency, the subsequent fetch should retrieve newer data before the socket queue is empty. Is that correct? Am I missing something? Thanks!

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• Shooting Print Quality Pictures with a Camera Phone [Video]

  - by Jason Fitzpatrick

  Camera phones get a lot of grief for being underpowered but in this video tutorial the crew at SLR Lounge shows how basic technique and a good eye overcome all. Last year over at the photo blog FStoppers they put together a video showing off how you could use the iPhone as a fashion camera–essentially arguing that the camera wasn’t as important as the photographer. A lot of people said “Well yeah, but you had professional models and thousands of dollars in lighting equipment!” in reaction to the video. In turn the crew at SLR Lounge decided to make their own video showing that using only an iPhone camera and two reflectors (as well as an attractive but informal model). It of course helps to have some side kicks to help hold up your reflectors but the point still stands about modern camera phones being perfectly capable of good photos. The SLR Lounge iPhone Photo Shoot – A Follow Up Tribute to The FStoppers [YouTube] What is a Histogram, and How Can I Use it to Improve My Photos?How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is Compromised

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• Concurrency pattern of logger in multithreaded application

  - by Dipan Mehta

  The context: We are working on a multi-threaded (Linux-C) application that follows a pipeline model. Each module has a private thread and encapsulated objects which do processing of data; and each stage has a standard form of exchanging data with next unit. The application is free from memory leak and is threadsafe using locks at the point where they exchange data. Total number of threads is about 15- and each thread can have from 1 to 4 objects. Making about 25 - 30 odd objects which all have some critical logging to do. Most discussion I have seen about different levels as in Log4J and it's other translations. The real big questions is about how the overall logging should really happen? One approach is all local logging does fprintf to stderr. The stderr is redirected to some file. This approach is very bad when logs become too big. If all object instantiate their individual loggers - (about 30-40 of them) there will be too many files. And unlike above, one won't have the idea of true order of events. Timestamping is one possibility - but it is still a mess to collate. If there is a single global logger (singleton) pattern - it indirectly blocks so many threads while one is busy putting up logs. This is unacceptable when processing of the threads are heavy. So what should be the ideal way to structure the logging objects? What are some of the best practices in actual large scale applications? I would also love to learn from some of the real designs of large scale applications to get inspirations from!

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• Strange Exchange 2010 Mailbox issues

  - by jmreicha

  A little bit of information on my environment. I have 2 Exchange 2010 mailbox servers setup in a DAG, connected to a VNX SAN via fiber for the mailbox database disks. One of the servers seems to be working fine as it isn't throwing any similar errors but the other has been receiving strange errors in Event Viewer. I haven't been able to find a pattern to when these happen and I'm not really sure what I should be looking at to troubleshoot this. At this point I am wondering if the issue resides on the SAN or if this is because of an improper shutdown or something else on the Exchange side of things? Here are a few of the errors if that helps:

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• 11.10 install hangs at different places

  - by TreefrogInc

  I've been trying to install Oneiric for some time now, and I've looked everywhere for a solution to the problems I've been having. So far, I've attempted four times to install it, so now I'm up to a point of panic. So I grabbed the 11.10 x64 iso from the website, and after verifying that the md5 hash is correct, I burned that onto my last remaining clean CD. On my first attempt, everything went perfectly up to the middle of the installation, and the progress bar stopped when it said: "configuring target system." I could do everything else, only the installation seemed to have stopped. After I googled my problem, I went and used the "check disc for errors" option, which said everything was fine. Then I tried the installation again, only this time, I selected "Install Ubuntu Now" instead of the "try before installing". Again, the same problem. My second and third tries didn't even reach the installation phase. It just stopped at the 5 blinking dots and never went any further. I used the same non-rewritable cd for all the attempts, as the error check didn't show any problems and because I'm currently out of usable cds. System: Core i3 CPU @ 3.4 GHz, 500 GB HDD (250g used for Win7, 70g used for preexisting system partitions, 180g unallocated).

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• Page File - Why set one for each drive?

  - by Magic

  Hello, I have Windows Vista Business Edition running on my laptop (brand is HCL). I have 4 HDD which are as follows - C - 29.2 GB (of which only 3.68 GB is free) D - 39 GB (of which 37.8 GB is free) E - 39 GB (of which 37.3 GB is free) F - 41.6 (of which 41.4 GB is free) However, my page file settings are as below. Automatically manage paging file for all drives. Question - Why should I set one for each drive? Should I set my page file on the OS Root Drive. I happen to talk to a System Administrator in an IT company and he advised that we should never set the page file on the OS drive but on an alternate drive wherever possible. It would be really helpful, if you can guide me here or at least point me to the right resources so that I can read about paging and best practices of paging. Cheers,

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• How to mount drive in /media/userName/ like nautilus do using udisks

  - by Bsienn

  As of my current installation of Ubuntu 13.10 Unity, when i click on a drive in nautilus it get mounted in /media/username/mountedDrive i read that nautilus use udisks to do that. Basically i want to auto mount my drive using udisks in start up using this method But problem is, it mounts the drive in /media/mountedDrive, but i want it the way nautilus do in /media/username/mounteDrive I want NTFS Data drive to be auto mounted at /media/bsienn/ bsienn@bsienn-desktop:~$ blkid /dev/sda1: LABEL="System Reserved" UUID="8230744030743D6B" TYPE="ntfs" /dev/sda2: LABEL="Windows 7" UUID="60100EA5100E81F0" TYPE="ntfs" /dev/sda3: LABEL="Data" UUID="882C04092C03F14C" TYPE="ntfs" /dev/sda5: UUID="8768800f-59e1-41a2-9092-c0a8cb60dabf" TYPE="swap" /dev/sda6: LABEL="Ubuntu Drive" UUID="13ea474a-fb27-4c91-bae7-c45690f88954" TYPE="ext4" /dev/sda7: UUID="69c22e73-9f64-4b48-b854-7b121642cd5d" TYPE="ext4" bsienn@bsienn-desktop:~$ sudo fdisk -l Disk /dev/sda: 160.0 GB, 160000000000 bytes 255 heads, 63 sectors/track, 19452 cylinders, total 312500000 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x8d528d52 Device Boot Start End Blocks Id System /dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT /dev/sda2 206848 117730069 58761611 7 HPFS/NTFS/exFAT /dev/sda3 158690072 312494116 76902022+ 7 HPFS/NTFS/exFAT /dev/sda4 117731326 158689279 20478977 5 Extended /dev/sda5 137263104 141260799 1998848 82 Linux swap / Solaris /dev/sda6 141262848 158689279 8713216 83 Linux /dev/sda7 117731328 137263103 9765888 83 Linux Partition table entries are not in disk order bsienn@bsienn-desktop:~$ cat /etc/fstab # /etc/fstab: static file system information. # # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> # / was on /dev/sda7 during installation UUID=69c22e73-9f64-4b48-b854-7b121642cd5d / ext4 errors=remount-ro 0 1 # swap was on /dev/sda5 during installation UUID=8768800f-59e1-41a2-9092-c0a8cb60dabf none swap sw 0 0 Desired effect: Picture link

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• Opengl + SDL linking error

  - by me2loveit2

  I am trying to load an image as a texture with opengl using c++ in visual studio 2010. I researched a couple hours online and found the SDL library, then I implemented a simple example and got some linking error I can not seem to figure out. The error log is here: 1Build started 10/20/2012 12:09:17 AM. 1InitializeBuildStatus: 1 Touching "Debug\texture mapping test.unsuccessfulbuild". 1ClCompile: 1 All outputs are up-to-date. 1 texture mapping test.cpp 1ManifestResourceCompile: 1 All outputs are up-to-date. 1texture mapping test.obj : error LNK2019: unresolved external symbol _IMG_Load referenced in function "void __cdecl display(void)" (?display@@YAXXZ) 1MSVCRTD.lib(crtexe.obj) : error LNK2019: unresolved external symbol main referenced in function __tmainCRTStartup 1C:\Users\Me\Documents\Visual Studio 2010\Projects\Programming projects\texture mapping test\Debug\texture mapping test.exe : fatal error LNK1120: 2 unresolved externals 1 1Build FAILED. 1 1Time Elapsed 00:00:02.45 ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== Can someone please help me!! I am at a desperate point right now. I downloaded the SDL, and copied all the .h file into: C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Include I added the .lib (x86) files into://as a not i tried the (x64) file too but got the exact same error C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Lib and the .dll(x86) into: C:\Windows\System32 For implementing textures, I used the simple sample code from: http://www.sdltutorials.com/sdl-tip-sdl-surface-to-opengl-texture Please let me know if you can see me doing something wrong, or know how I can fix this!! Thanks Phil

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• H.264 Pricing confusion

  - by Jamie Taylor

  not sure if this is the right place but there seems to be other H.264 questions here, if not please point me to the right place! I am taking uploaded content and encoding it to H.264, I'm confused about the pricing though. Do I have to pay to host and stream this video on my server (in Ireland). I've tried looking around google but there doesn't seem to be a definitive answer. Some countries have exceptions, some pay $2500. What kind of information should I be looking at to understand the pricing model more? Thanks.

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• Can I use a 302 redirect to serve up static content from a url with escaped_fragment?

  - by Starfs

  We would like to serve up seo-friendly ajax-driven content. We are following this documentation. Has anyone ever tried to write a 302 redirect into the htaccess file, that takes the '?_escaped_fragment=' string and send that to a static page? For example /snapshot/yourfilename/ How will Google react to this? I've gone through the documentation and it's not very clear. The below quote is from Google's documentation this is what I find. I'm not sure if they are saying that you can redirect the _escaped_fragment_ url to a different static page, or if this is to redirect the hashtag URL to static content? Thoughts? From Google's site: Question: Can I use redirects to point the crawler at my static content? Redirects are okay to use, as long as they eventually get you to a page that's equivalent to what the user would see on the #! version of the page. This may be more convenient for some webmasters than serving up the content directly. If you choose this approach, please keep the following in mind: Compared to serving the content directly, using redirects will result in extra traffic because the crawler has to follow redirects to get the content. This will result in a somewhat higher number of fetches/second in crawl activity. Note that if you use a permanent (301) redirect, the url shown in our search results will typically be the target of the redirect, whereas if a temporary (302) redirect is used, we'll typically show the #! url in search results. Depending on how your site is set up, showing #! may produce a better user experience, because the user will be taken straight into the AJAX experience from the Google search results page. Clicking on a static page will take them to the static content, and they may experience avoidable extra page load time if the site later wants to switch them to the AJAX experience.

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• Does unit testing lead to premature generalization (specifically in the context of C++)?

  - by Martin

  Preliminary notes I'll not go into the distinction of the different kinds of test there are, there are already a few questions on these sites regarding that. I'll take what's there and that says: unit testing in the sense of "testing the smallest isolatable unit of an application" from which this question actually derives The isolation problem What is the smallest isolatable unit of a program. Well, as I see it, it (highly?) depends on what language you are coding in. Micheal Feathers talks about the concept of a seam: [WEwLC, p31] A seam is a place where you can alter behavior in your program without editing in that place. And without going into the details, I understand a seam -- in the context of unit testing -- to be a place in a program where your "test" can interface with your "unit". Examples Unit test -- especially in C++ -- require from the code under test to add more seams that would be strictly called for for a given problem. Example: Adding a virtual interface where non-virtual implementation would have been sufficient Splitting -- generalizing(?) -- a (smallish) class further "just" to facilitate adding a test. Splitting a single-executable project into seemingly "independent" libs, "just" to facilitate compiling them independently for the tests. The question I'll try a few versions that hopefully ask about the same point: Is the way that Unit Tests require one to structure an application's code "only" beneficial for the unit tests or is it actually beneficial to the applications structure. Is the generalization code need to exhibit to be unit-testable useful for anything but the unit tests? Does adding unit tests force one to generalize unnecessarily? Is the shape unit tests force on code "always" also a good shape for the code in general as seen from the problem domain? I remember a rule of thumb that said don't generalize until you need to / until there's a second place that uses the code. With Unit Tests, there's always a second place that uses the code -- namely the unit test. So is this reason enough to generalize?

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• wireless blocked after installing ubuntu 12.04

  - by Cornelia Frank

  I am using a lenovo S10-3 ideapad; had no problems with earlier version of ubuntu, only since installing 12.04. Have looked through many of the questions on the same issue and tried potential solutions but cannot seem to solve my problem. The hardware switch is in 'on' position and the wireless light comes on very briefly (2-3 sec) when the laptop starts up but then goes off and stays off. Pressing FN+F5 does nothing at all. I'd be grateful for any assistance. Cornelia Have received the following responses in Terminal: cf@cf-Lenovo:~$ rfkill list all 0: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no 1: ideapad_bluetooth: Bluetooth Soft blocked: no Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: yes cf@cf-Lenovo:~$ iwconfig lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off eth0 no wireless extensions. cf@cf-Lenovo:~$ lshw -C network WARNING: you should run this program as super-user. *-network description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:05:00.0 logical name: eth0 version: 02 serial: 00:26:9e:ee:7f:4c size: 100Mbit/s capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=N/A ip=10.0.1.8 latency=0 multicast=yes port=MII speed=100Mbit/s resources: irq:43 ioport:2000(size=256) memory:f0520000-f0520fff memory:f0510000-f051ffff memory:f0540000-f055ffff *-network DISABLED description: Wireless interface product: AR9285 Wireless Network Adapter (PCI-Express) vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:09:00.0 logical name: wlan0 version: 01 serial: c4:17:fe:f8:bc:d7 width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=3.2.0-31-generic-pae firmware=N/A latency=0 multicast=yes wireless=IEEE 802.11bgn resources: irq:18 memory:f0100000-f010ffff WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

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• Oracle Solutions supporting ICAM deployments

  - by user12604761

  The ICAM architecture has become the predominant security architecture for government organizations.  A growing number of federal, state, and local organizations are in various stages of using Oracle ICAM solutions.  The relevance of ICAM has clearly extended beyond the Federal ICAM mandates to any government program that must enable standards based interoperability like health exchanges and public safety.  The state government endorsed version of ICAM was just released with the NASCIO SICAM Roadmap. ICAM solutions require an integrated security architecture.  The major new release in August of Oracle Identity Management 11gR2 focuses on a platform approach to identity management.  This makes it easier for government organizations to acquire and implement a comprehensive ICAM solution, rather than individual products.  The following analysts reports describe the value of the Oracle Solutions: According to The Aberdeen Group:  “Organizations can save up to 48% deploying a platform of  (identity management) solutions when compared to deploying point solutions” IDC Product Flash, July 2012:  “Oracle may have hit the home run grand slam in identity management recently with the announcement of Oracle Identity Management 11g R2." For additional information on the Oracle ICAM solutions, attend the Webcast on October 10, 2012:  ICAM Framework for Enabling Agile, Service Delivery. Visit the Oracle Secure Government Resource Center for information on enterprise security solutions that help government safeguard information, resources and networks.

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• Mechanics of reasoning during programming interviews

  - by user129506

  This is not the usual "I don't want to write code during an interview", in this question the assumption is that I need to write code during an interview (think about the level of rewriting the quicksort or mergesort from scratch) I know how the algorithm work or I have a basic idea of how I should start working from there, i.e. I don't remember the algorithm by heart I noticed that even on a whiteboard, I always end up writing bugged code or code that doesn't compile. If there's a typo, whatever I usually live with that.. but when there's a crash due to some uncaught particular case I end up losing confidence in my skills. I realize that perhaps interviewers might want to look at how I write code and/or how I solve problems rather than proof-compiling my whiteboard code, but I'd like to ask how should I approach the above problem in mental terms, i.e. what mental steps should I follow when writing code for an interview with the two bullet points above. There must be a unique and agreed series of steps I should follow to avoid getting stuck/caught into particular exception cases (limit cases) that might end up wasting my time and my energies rather than focusing on the overall algorithm for the general case. I hope I made my point clear

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• tradeoffs of iSCSI vs. AFP when using Time Machine with a NAS?

  - by ajit.george

  I'm setting up a home NAS device (Synology DS409) that I'm planning to use for Time Machine backups (amongst other things). What are the tradeoffs between using iSCSI or AFP to mount the backup volume? The Synology wiki suggests that iSCSI is better if the Mac will be frequently disconnected from the network or sleeping, from the point of view of the volume automatically remounting. What about filesystem consistency? Given that unplugging a USB drive without properly unmounting it often requires the Time Machine volume to be repaired, would iSCSI have the same issues? Thanks in advance.

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• Which Wine DLLs should I *not* overwrite with the real thing?

  - by endolith

  I have a legit installation of Windows XP and dual boot with Ubuntu (currently Karmic). WineHQ says it's possible to use DLLs from a real installation of Windows in place of "DLLs that Wine does not currently implement very well". So I'd like to just create softlinks that point to all of the DLLs in my real Windows System32 folder, under the theory that this would help things function better and behave in a less buggy, more native way. But should I go as far as replacing the Wine DLLs with the real ones? If so, are there any DLLs that need to remain the way they are for compatibility with the Linux world? Which ones are safe to replace?

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• Configuration of Home Network

  - by Wen Jie

  Previously my home network is as follows Speedtouch ST536 -> Linksys WRT54G But now as I have upgraded my internet subscription. My service provider gave me a "2Wire 2701 HGV" modem. I was wondering if it is possible to put the "2Wire" as an access point. So I might have a configuration as follows? Room Living Room Speedtouch ST536 -> Linksys WRT54G {Wireless} 2Wire 2701 HGV Because I find that my signal is very weak. Is there any way for me to do that?

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• How do I set up multiple Magento sites from the same domain?

  - by Jenx222

  I have a Magento installation with two sites, each with a shop and a view. I have an EU store in one site and a NON-EU store in the other. Both sites use a different currency. At present both of these websites are located on the same domain. I have been able to switch between stores using cookies but this seems to cause an inherit amount of problems. Every time a user creates an account on the non-default shop they get a blank error message. They also get a blank error message when they log in. Can anyone point me in the right direction? I need to use a different currency for each store but they all need to be on the same domain.

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• Releasing software/Using Continuous Integration - What do most companies seem to use?

  - by Sagar

  I've set up our continuous integration system, and it has been working for about a year now. We have finally reached a point where we want to do releases using the same. Before our CI system, the process(es) that was used was: (Develop) -> Ready for release -> Create a branch -> (Build -> Fix bugs as QA finds them) Loop -> Final build -> Tag (Develop) -> Ready for release -> (build -> fix bugs) Loop -> Tag Our CI setup: 1 server for development (DEV) 1 server for qa/release (QA) The second one has integrated into CI perfectly. I create a branch when the software is ready for release, and the branch never changes thereafter, which means the build is reproduceable without having to change the CI job. Any future development takes place on HEAD, and even maintainence releases get a completely new branch and a completely new job, which remains on the CI system forever, and then some. The first method is harder to adapt. If the branch changes, the build is not reproduceable unless I use the tag to build [jobs on the CI server uses the branch for QA/RELEASE, and HEAD for development builds]. However, if I use the tag to build, I have to create a new CI job to build from the tag (lose changelog on server), or change the existing job (lose original job configuration). I know this sounds complicated, and if required, I will rewrite/edit to explain the situation better. However, my question: [If at all] what process does your company use to release software using continuous integration systems. Is it even done using the CI system, or manually?

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• What causes an MSI package to launch following application install

  - by Damo

  We have an application we have developed, it gets deployed via an MSI I built. The MSI has been used in many locations, on many different builds. On one customers site, on occasion we are seeing some odd occurrences of data from the registry going missing. The 'data' from some select registry keys disappears and we have little idea why. One interesting point is that the MSI installer for our application has been seen in passive mode during OS load / load of our application on stat-up. The MSI loads a progress bar then disappears, following this our application loads up. It has been noted that following this the data disappears from our registry. However I can't say these two events are absolutely linked, it could have been missing before this event. What causes the MSI for an application to launch way after initial installation. How can it be prevented (correctly)

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• Efficient path-finding in free space

  - by DeadMG

  I've got a game situated in space, and I'd like to issue movement orders, which requires pathfinding. Now, it's my understanding that A* and such mostly apply to trees, and not empty space which does not have pathfinding nodes. I have some obstacles, which are currently expressed as fixed AABBs- that is, there is no unbounded "terrain" obstacle. In addition, I expect most obstacles to be reasonably approximable as cubes or spheres. So I've been thinking of applying a much simpler pathfinding algorithm- that is, simply cast a ray from the current position to the target position, and then I can get a list of obstacles using spatial partitioning relatively quickly. What I'm not so sure about is how to determine the part where the ordered unit manoeuvres around the obstacles. What I've been thinking so far is that I will simply use potential fields- that is, all units will feel a strong repulsive force away from each other and a moderate force towards the desired point. This also has the advantage that to issue group orders, I can simply order a mid-level force towards another entity. But this obviously won't achieve the optimal solution. Will potential fields achieve a reasonable approximation given my parameters, or do I need another solution?

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• Please help me decide if I should I change jobs [closed]

  - by KindaNewbie

  About me: I am very entrepreneurial and believe I would do well working solo as a consultant and possibly hiring help. I do want to do that at some point. I love to learn and a good challenge. Please help me make this decision! Current job (I am there for about 4 years): Pros: secure job good pay (I guess I am 80 percentile for my level/geographical area) large corporation - main business is not software excellent health insurance for low cost to me, pension, 401k matching, 6 weeks paid time off per year small dev team use of latest technologies (mostly WPF/silverlight) low supervision (I can do personal things all the time) I get to do a lot of moonlighting and my goal was to go solo full-time in a year or so. Cons: small team of non-professional devs 50% of my time I do things I don't enjoy projects are not meaningful to the organization If I left it wouldn't be too hard for them - business would resume as usual. Nobody besides my small team of 3 has any idea about software development whatsoever. Prospect job: Pros: small/agile software company same salary as current job same size dev team but all are very sharp (I would probably be the weakest of the team in the beginning) technology used is outside my comfort zone (latest cool web technolgies such as html5/jquery/...) - I am not a web dev and they know that. ton of learning opportunity Start-up - possibility of stock option/partial ownership of some sort Cons: Small office space - not able to do personal things as often (may be pro) No room for moonlighting less benefits (but salary can compensate for that)

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