Programming

Looking for Portable MPI I/O Implementation? 36

Posted by Cliff from the creating-code-that-works dept.
rikt writes "I am trying to implement MPI I/O for our CFD product. I am facing a problem with the portability of the generated data files. MPI2 interface describes a way to achieve this either by using 'external32' or user defined data representations. The problem is that ROMIO, the most widely available MPI I/O implementation, has not implemented support for any data representation other than 'native'. Do you know of any MPI I/O implementation that supports this, and is available on various platforms? I know IBM and Sun supports this, but I am looking for a solution on Linux and Windows (both 32 & 64 bit) as well."
Technology

Technology That You Loved from the 70/80/90's? 207

Posted by Cliff from the gadgets-that-you-wouldn't-be-caught-dead-with-today dept.
modi123 asks: "I was spending a large chunk last weekend watching VH1's I love the 80's: Strikes Back with a couple of friends. We would comment and laugh at all the dreadful things we were into, and then the topic shifted towards old tech and gadgets from then. I brought up my old 486 Packard Bell (DOS 6.0, Windows 3.1, Doom, all for $3700.00), and it spiraled out from there. The usual things cropped up: Nintendos, Sega Master Systems, Apple II Gs, and so forth. Then it delved into more weird items: Rob The Nintendo Playing Robot, HyperCard, cell phones with 50 lb batteries, and the pager craze. I am curious what the /. community remembers as their favorite technology from previous decades (be it 70's, 80's or 90's). Perhaps we can even chart a timeline if people toss in when they first remember it."
Linux

Vanilla Kernel 2.6 Stability vs 2.4? 129

Posted by Cliff from the to-upgrade-or-not dept.
chromis asks: "I am a 'Linux-from-scratch' like Linux user. I maintain my system for almost 4 years that way. I'm still using kernel 2.4, and I'm a little bit afraid for updating to 2.6 because of the problems like stability issues, driver subsystem problems, etc. I once tried 2.6.0 a long time ago, but I experienced random freezes which I could not diagnose. We all know about the development model issues, and I often read complaints about current kernel development practices. Now that kernel 2.6.13 is out, I really want to ask Slashdot: if you are a vanilla 2.6 kernel user, how are your experiences with these plain kernel.org 2.6 kernels? Is it really as bad as some people claim, or is 2.6 only usable when using a distro from a large vendor like Red Hat, SuSE, etc? I really would like to upgrade to the new vanilla 2.6 kernel eventually, but I'm a little hesitant. Any advice?"
News

9 Weeks to Pump Out New Orleans? 2153

Posted by Cliff from the katrina's-aftermath dept.
Cr0w T. Trollbot asks: "It looks like New Orleans is going through something very close to the worst case scenario right now. This somewhat prescient study, written well before the hurricane, describes some of the challenges (engineering and otherwise) facing New Orleans. 'In this hypothetical storm scenario, it is estimated that it would take nine weeks to pump the water out of the city, and only then could assessments begin to determine what buildings were habitable or salvageable. Sewer, water, and the extensive forced drainage pumping systems would be damaged. National authorities would be scrambling to build tent cities to house the hundreds of thousands of refugees unable to return to their homes and without other relocation options.' The hypothetical is looking awful close to reality right now. What can be done about draining and rebuilding New Orleans in light of the massive flooding, and what can be done to prevent and/or lessen such disasters in the future?"
Data Storage

Examples of Obsolete File Formats? 159

Posted by Cliff from the w/-humans-it's-memory-w/-machines-it's-data-files dept.
reedk writes "I was having a discussion with my boss about long-term archives, and we got on the topic of older files becoming un-readable by newer versions of software. Not only are those old Ami pro files unreadable by today's common word processors, but I have heard that newer version of Office can't consistently open very old versions of Office documents. With the increasing retention periods being forced by current and coming regulations, this could become a problem of compliance in the future. We want to pursue this topic, but to build support for it internally, I am looking for examples of older file formats that are no longer readable by newer version of the same software or due to the market death of the product. If true, this would lend a lot of force behind moving to products that have an open file format. Can Slashdot readers come up with examples of this, or ways they have had to get around these kinds of problems?"
Technology

Forms of Alternative Transportation to Work? 154

Posted by Cliff from the better-than-a-bicycle dept.
puargsss asks: "For many people a bicycle is not a viable form of transportation to work due to lack of storage space. Are there any products out there suitable for transportation to a working environment (the ability to store them inside is essential), or a detachable/retractable set of wheels similar to heelys that are built for a working environment? I normally rollerblade for sport/exercise, but it is fairly unprofessional to show up in my workplace with the rather large and clunky traditional equipment. Any ideas?"

Send your name to Pluto 326

Posted by ScuttleMonkey from the great-ad-infinitum-grand-children dept.
hatredman writes "NASA is preparing to send the New Horizons probe to Pluto. It will be the first earth device to get intimate with the icy planet. And you can be there too - or, at least, your name. NASA is asking everyone to send them their names, which will be attached in the space device. The New Horizons probe will be launched in January 2006 to explore Pluto and the Kuiper belt, in the outskirts of the Solar System. It is expected that the probe will return to earth in approximately 50 thousand years."
Music

Internet-based Publishing for Independent Bands? 36

Posted by Cliff from the more-music-online dept.
Cultural Sublimation asks: "My brother's band is putting the finishing touches on their new album. They have published via a small independent label before, but this time they are considering going for Internet-based distribution. They are quite open to fresh ideas: they are even thinking of releasing the album into P2P networks and using the tip-jar model for revenue. It would also be nice to give people the possibility of buying online the physical CD with the artwork. They are therefore looking for a publisher which: a) won't take away their rights; b) allows for distribution via P2P (perhaps even providing a tracker for torrents); c) facilitates the tip-jar model; and c) allows physical CDs to be shipped on demand. What are fellow Slashdot readers opinion on this?"
Businesses

What's the Point of IT Certifications? 1100

Posted by Cliff from the that-all-important-piece-of-paper dept.
erica_ann asks: "Fact: You can have the knowledge without having to pay to be Certified when it comes to computers. Another fact: Just because you have the certification does not mean you actually know the material as well as someone who is not certified. You might just be good at taking tests. So what is the point of getting IT Certifications? To have a piece of paper?"
Software

License for Open-Source Software w/ Plugins? 91

Posted by Cliff from the stuck-in-a-tricky-situation dept.
ThiagoHP asks: "I have developed MultiMAD, a rapid application development and prototyping for for mobile devices in my master's course, and now I want to share it with the community. It's written in Java and it has a plugin architecture in order to support different mobile device platforms (WAP, J2ME, PalmOS, etc). I want to give the freedom to anybody write their plugins, even closed-source, as long as the tool itself is not modified for them to run. This implies that GPL cannot be used. At the same time, I do not want any closed-source tool based in MultiMAD code, so licenses such as the Apache one cannot be used. Am I right in my assumptions regarding licenses? What license do you suggest?"
Education

What was Your Senior Project? 82

Posted by Cliff from the only-if-you-feel-like-sharing dept.
Caydel asks: "I am a third year CS major. This year I have a two-semester senior project course in which I can spend two semesters on a project of my choosing. I want to write something very cool, which at the same time provides quite a challenge to me, and serves a useful purpose; however, I am having trouble coming up with good ideas. For those of you out there who have done a similar course, what did you do? What would you have done differently? Which languages did you use? How many skills, that came from outside of your CS courses, did you use?"
Power

Low-Powered Personal Servers? 119

Posted by Cliff from the less-noise-less-footprint-less-impact dept.
antifoidulus asks: "Being the proud owner of a PowerBook, I have but one complaint when it comes to my computing experience: the lack of an 'always-on' web/database server that would allow me to work on some personal programming projects, since I don't like having my PowerBook on 24/7. I could just buy an Intel box, but looking at some of the horror stories of how much power P4s consume, and living in Germany where electricity is not cheap, I wanted to see what suggestions the Slashdot community has for low-cost, low-power, headless servers. My only requirements are that it can run Linux and preferably cost less than $500. Is this possible? What architecture should I go with?"
Communications

E-Mail Server Setup Advice? 67

Posted by Cliff from the not-as-easy-as-it-used-to-be dept.
dhammala asks: "I am responsible for setting up and maintaining a mail server for small web-hosting type business. We currently host about 75 domains, around 100 mailboxes and due to the efforts of our sales team, we are wanting to get ready for some great increases in those numbers. I am worried about my current configuration and ease of administration. More importantly (well, at least to the customers) is email deliverability -- it seems that messages delivered to some big players are being marked as SPAM or disappearing altogether. I am asking the Slashdot community for it's insight and advise on 1) if my current choice of software/configuration is a good match for this situation and 2) if there any additional measures I might take to ensure email deliverability?"
Power

Practical Solar Power for Travelers? 34

Posted by Cliff from the roll-up-solar-arrays dept.
kalido asks: "When travelling with gadgets it can be a pain to keep the power flowing, especially in remote locations. Are there any practical methods to recharge batteries and devices when on the go? A bit of googling turns up the PowerFilm, PowerFlex and SolarRoll flexible solar panels. But I haven't seen any reviews anywhere. Have any of you used these or similar devices and how easy is it to use if attached to a pack, bike, jacket, etc.?"
Education

How Can Tech Help Fight Education Costs? 503

Posted by Cliff from the cheaper-AND-better dept.
http101 asks: "With the ever-rising costs of fuel, we seem to forget those that are truly having problems affording it. No, not the homeless, but our own kids. 'Kids,' you ask? Yes, because being driven to school on the 'Yellow Dog' or the 'Edu-Express' better known as a school bus, is costing your state more money than ever before. In my neighborhood, we have a plethora of home connected by fiber and at least high-speed internet. So my question is, how can technology be better-implemented to ensure a student's studies and also lower the costs of fuel for the districts?"

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