I'd like to hear some opinions as to what role, if any, parallel computing approaches, including the potential use of the parallel extensions (June CTP for example), have a in web applications. What scenarios does this approach fit and/or not fit for? My understanding of how exactly IIS and web browsers thread tasks is fairly limited...
I am looking into Cloud Computing for my company. The one question that I can't seem to get out of my head is; What happens to my data and the ability to use it if the Cloud computing company goes out of business? ...
While this question is particular to Azure, I'm sure that it is a common situation for cloud computing in general. I have a list of tasks that I need run at a certain time. With a window's server, I can use Task Scheduler and schedule my program to run at a certain time. I could go a step further and create a windows service that woul...
I am going to teach my first undergraduate class on "Computing Architecture." I guess that this is not quite a proper term because other related terms, like Computer Architecture, usually refer to low-level structure of computer system. Architecture in "computing architecture" is used as in software or system architecture. Actually this...
will it be possible to scale cloud computing concept to millions of user across the world? will it degrade the performance ...
This is in relation to the ongoing discussion in my previous Question http://stackoverflow.com/questions/1810313/performance-penalty-of-message-passing-as-opposed-to-shared-data One of issues being discussed was the amount of work needed to distributed algorithms in Erlang using Message Passing vs. Shared state. My viewpoint is that ...
I plan to learn parallel computing, Now I am thinking MPI or TBB. In fact, I do not have much experence at this. I suppose I had better start with something easy to manage. At first, I may try something like coarse-grained code. Which one could be easier for me? Thanks. ...
Now I have a serial solver in C++ for solving optimization problems and I am supposed to parallelize my solver with different parameters to see whether it can help improve the performance of the solver. Now I am not sure whther I should use TBB or MPI. From a TBB book I read, I feel TBB is more suitable for looping or fine-grained code....
Im very much new to map reduce and i completed hadoop wordcount example. In that example it produces unsorted file (with key value) of word counts. So is it possible to make it sorted according to the most number of word occurrences by combining another map reduce task to the earlier one. Thanks in Advance ...
Hi, I want to know if there is any open source testing tool for cloud computing. We have built a cloud framework with Xen, Eucalyptus, Hadoop, HBase as different layers. I am not looking at testing each of these tools separately, but i want to test them from the perspective of fitting into a cloud environment (for example scalability of...
Currently I have a perl script that runs forever on my server, checking a SQS for data to compute. This script has been running for about 6 months with no problems what so ever. So, now I want to switch over to PHP'S CLI, and have the script loop there forever. Mostly because I'm more familiar with PHP. Basicly, $i="forever"; while($i...
Customers able to upload urls in any time to database and application should processes urls as soon as possible. So i need periodic hadoop jobs running or run hadoop job automatically from other application(any script identifies new links were added, generates data for hadoop job and runs job). For PHP or Python script, i could set up cr...
Is it possible a web client (java-script, flash, etc) act like server too? Is there some protocol? ...
Possible Duplicate: How can I quantify difference between two images? I've used Imagick's convert function to convert a tif-image to png. Using imagick you can compute a new image based on the two to see any difference. Any difference will show up as red dots on a grey/transparent version of the original image. That's all nice...
I have been toying with some codes to solve this using a Levenberg-Marquardt solver but I am puzzled by what is given here http://www.itl.nist.gov/div898/strd/nls/data/LINKS/DATA/Misra1a.dat When I plug in the certified values and look at the predicted values, they look quite different from the actual Y values... surely I am doing somet...
hi all of you, i am going to take mobile computing as one of my elective subject i want suggestion form you for book my university course for mobile computing is as follow UNIT – I Introduction to Personal Communications Services (PCS): PCS Architecture, Mobility management, Networks signalling. Global System for Mobile Communication (...
What is cloud computing? What can I make with it? ...
Hello how can I parametrize a shell script that is executed on a grid (started with qsub) ? I have a shell script, where I use getopts to read the parameters. When I start (qsub script.sh -r firstparam -s secondparam ..) this working script with qsub I receive error messages, qsub: invalid option -- s qsub: illegal -r value ...
Hey Guys, I'm a developer having around 6 years of experience in developing enterprise applications (web based/thick-client) using JEE technologies. Also I have hands-on experience developing web services host and client apps. I have an high-level idea about Cloud computing.I have some questions like below: 1.As a developer,how can i ...
Hi Everyone, I have a R Job that is submitted to the condor, The R file(one.R) which is submitted to the condor is reading another R file(two.R), when I submit the job to the condor its is failed and the reason for that is the submitted R(one.R) file is not reading the called R file(two.R) Error in text file is : Error in file(file, "r...