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Comment: Re:The important question is... (Score 3, Informative) 163

by sdot1103 (#33569724) Attached to: Intel Unveils 'Sandy Bridge' Architecture
Yup if you shelled out for a Socket 1366 (high end i7), you're going to be sticking with Nehalem until Socket R comes out down the line.
If you went with 1156, which I did (P55 Classified + i7 860 @ 4.0 Ghz), then you're screwed, just earlier, since it's now Socket 1155, which isn't compatible even though it's just a 1 pin difference.
I wasn't very happy with Intel when I found this out, since they've recently switched sockets after holding on to 775 for so long, but from my understanding AMD has also done something with the AM-2/3 socket where some motherboards are back/forwards compatible, but others aren't. I think there is a derivative socket, Am-2/3+, that is backward compatible but the Am2-3 standard version isn't forwards compatible. Don't take my word on it though, my builds have been Intel since the Q6600 came out. AMD has done a better job of backward compatibility but the sweet spot for price/performance + overclocking has been Intel chips whenever I've done my last few builds, and I only do builds every few years, usually after new architectures are released so my motehrboards are usually replaced as well.
Anandtech covered upcoming socket changes in more detail in their writeup

Comment: Re:Zuse? (Score 2, Interesting) 737

by sdot1103 (#31448954) Attached to: What IT pioneer do you respect the most?
Ok -- there were 2 reports -- Eckert & Mauchly put out a memo describing EDVAC that Goldstine (who coauthored the other report with von Neumann) classified. He then deemed the other report unclassified, and began distributing it to academics around the globe, which popularized the concept. EDSAC was the first completed device, led by Maurice Wilkes, due to the friction between Ecker/Mauchly and Goldstein/von Neumann delaying EDVAC.
Eckert had already designed the memory system and implemented it in his previous work before von Neumann arrived at UPenn. Von Neumann definitely deserves some credit for writing up and distributing the paper but if you read the first report he gives no indication that anyone else designed any portion of the machine, and only cites Mauchly for one idea. Von Neumann's contributions to EDVAC were primarily in the logic areas, especially the design of the instruction set, but the First Draft was at best a glaring omission of the work Ecket, Mauchly, and the many other engineers at the Moore School that built ENIAC and EDVAC.
Source: ENIAC -- The Triumphs and Tragedies of the World's First Computer (which is a great book on the early years of electronic computers--basically convinced me to major in ECE)

Comment: Re:Zuse? (Score 3, Informative) 737

by sdot1103 (#31434694) Attached to: What IT pioneer do you respect the most?
Considering Von Neumann basically stole the idea from Eckert & Mauchley, who had already developed the stored-program architecture and implemented it with mercury delay lines for EDVAC, I would prefer not to give him credit for this and focus on his other numerous acheivements.
Von Neumann's self-appointment as a head of the EDVAC project did more to prevent EDVAC from being the first stored-program computer (instead the British completed EDSAC first) than he ever contributed to the design of any of the early electronic general purpose computers, although his First Draft did disseminate the theory behind these early machines.
If anyone should be on that list (along with Zuse), Eckert & Mauchley should be added. In addition to the first Turing-complete electronic computer, they also went on to found the first computer company and gave other pioneers, and a number of women, including Grace Hopper, the opportunity to work in the industry.
Earth

+ - Himalayan Glacier Disaster Claims Melt Away 1

Submitted by
Hugh Pickens
Hugh Pickens writes "VOA News reports that leaders of the United Nations' Intergovernmental Panel on Climate Change have apologized for making a "poorly substantiated" claim that Himalayan glaciers could disappear by 2035 as scientists who identified the mistake say the IPCC report relied on news accounts that appear to misquote a scientific paper that estimated the glaciers could disappear by 2350, not 2035. Jeffrey Kargel, an adjunct professor at the University of Arizona who helped expose the IPCC's errors, said the botched projections were extremely embarrassing and damaging. "The damage was that IPCC had, or I think still has, such a stellar reputation that people view it as an authority — as indeed they should — and so they see a bullet that says Himalayan glaciers will disappear by 2035 and they take that as a fact," says Kargel, one of four scientists who addressed the issue in a letter that will be published in the Jan. 29 issue of the journal Science. Experts who follow climate science and policy say they believe the IPCC should re-examine how it vets information when compiling its reports. "These errors could have been avoided had the norms of scientific publication including peer review and concentration upon peer-reviewed work, been respected," write the researchers."

+ - Crazy Firewall Log Activity by Country and Hour-> 1

Submitted by arkowitz
arkowitz (1185265) writes "I happened to have access to five days worth of firewall logs from a US state government agency. I wrote a parser to grab unique ip's out, and sent several million of them to a company called Quova, who gave me back full location info on every 40th one. I then used Green Phosphor's Glasshouse visualization tool to have a look at the count of inbound packets, grouped by country of origin and hour. And it's freaking crazy looking. So I made this video of it and I'm asking the Slashdot community: What the frak is going on?"
Link to Original Source
PlayStation (Games)

+ - PS3 Hacked->

Submitted by Anonymous Coward
An anonymous reader writes "Hello hypervisor, I'm geohot

I have read/write access to the entire system memory, and HV level access to the processor. In other words, I have hacked the PS3. The rest is just software. And reversing. I have a lot of reversing ahead of me, as I now have dumps of LV0 and LV1. I've also dumped the NAND without removing it or a modchip.

3 years, 2 months, 11 days...thats a pretty secure system"

Link to Original Source
Linux

+ - LG Electronics Alleged To Be Violating The GPL?

Submitted by
lazyeye
lazyeye writes "According to this post on reddit, LG Electronics refuses to release the source code to their Linux-based TVs. Reddit user anarchytoday states, "I asked for the source code at their support site and they said it was unavailable. Emails also go unanswered at opensource@lge.com (tech support said to try that email address.) LG refuses to honor their GPL obligations.""

Comment: Re:Not a fan of (P/NG/LT/Berkeley)SPICE (Score 1) 211

by sdot1103 (#28920945) Attached to: Cheap, Cross-Platform Electronic Circuit Simulation Software?
I agree on the myth of HSPICE vs Spectre -- my models were SPICE-syntax (22nm PTM BSIM4 models) so it's just a couple of syntax changes to get them into Spectre.

My results found that Spectre fit much closer to the predictions, while HPSICE's were a bit farther out on simple process characterization tests, as well as on simple designs (FO4 Inverters, etc.). Since Spectre matched the trends closer, I'd definitely have to give it the nod.

The increasing foundry support is definitely a major plus, though all the classes here are taught on Cadence's gpdk090 since it provides full models, does a lot of the calculations automatically so that nobody is forced to learn SKILL on their own to speed things up, and provides layouts for transistors and lots of extras/integration into Assura, etc.

I didn't mean to come off against Spectre -- my experiences with it have been great -- most of the negatives I heard came from some engineers on DeepChip. Personally, I was most impressed with Ultrasim -- it maintains about 98% accuracy on both power consumption and delay of full chips versus Spectre with about 10x speedup on small (~15k transistors) designs and even more significant gains on larger designs. I've tested up to ~1 million transistors with ease on Ultrasim even with large amounts of mismatch across devices.

Comment: Re:Not a fan of (P/NG/LT/Berkeley)SPICE (Score 2, Interesting) 211

by sdot1103 (#28913059) Attached to: Cheap, Cross-Platform Electronic Circuit Simulation Software?
I just spent the past summer doing research at the 22nm level (designing L1/L2 caches with DVFS and other low-power techniques) and I can't agree more on SPICE/HSPICE's inability to converge.

I shrunk my designs down to the criitical paths (~12k transistors), and even providing the proper nodesets/initial conditions HSPICE was unable to converge or segfaulted quikcly. Fortunately, my university has a deal with Cadence through their University Alliance program -- Spectre may not be quite as accurate at HSPICE for analog circuits, but both it and Ultrasim (a FASTSPICE simulator for large designs) can handle much larger digital designs without complaint.

To the original submitter: Is there a good reason behind the no network connection requirement? If the university has a proper setup, students should be fine either on or off campus -- then it may be worth checking if your university has any deals with either Cadence, Synopsys, or Magma -- their tools are primarily Unix-based (Solaris, AIX, and Linux support), so it's just a matter of having the students SSH in with X forwarding or use VNC. This would even allows users with underpowered machines to simulate large designs quickly since everything is done remotely. I primarily run Windows on my local box, but either VMs with Linux or using Putty with Xming work properly for all these tools.
Communications

+ - "Uncle" Walter Cronkite has died-> 1

Submitted by
buss_error
buss_error writes "CNN and others are reporting that the icon of modern news reporting, Walter Cronkite, has died. I remember when "Uncle" Walter reported that JFK had been assasinated, at the time, I lived in Lake Worth, TX, just outside of Dallas. For you young ones, I'm sure this isn't really all that important, but for me and those in my generation, this is a major rock to our world."
Link to Original Source
Space

+ - Long-time CBS news anchor Walter Cronkite dies @92

Submitted by spazekaat
spazekaat (991287) writes "Just found out a few minutes ago......long time CBS news reporter/anchor has died at the age of 92. Report is on CNN (http://www.cnn.com/2009/US/07/17/walter.cronkite.dead/index.html). He had a long and varied career, but I personally remember him as a child as the "voice" who reported to the joe-public during the American space missions. Most poignant to me personally was his coverage of the Apollo 11 mission, the 40th anniversary is being celebrated now. I really feel bad that his death came only a couple of days of the actual landing anniversary, it would have made a great interview. "Godspeed" Walter Cronkite, I for one shall miss this great reporter. BTW -I am Canadian, but Walter had influences all over the world, I'm sure."
Novell

Boycott Novell Protesters Manhandled In India 360

Posted by kdawson
from the opposite-of-freedom dept.
James Mathew writes "This is an interesting story from Kerala, India, where the ruling Communist Party organized a national conference in its efforts to hijack the Free Software Movement, which has enviable roots in the state. They got Novell to sponsor it. On the second day of the conference, a few free software activists who displayed posters against Novell were manhandled by the organizers and police — typical of what is expected from them. Most of the snaps taken during the scuffle were forcefully deleted by the organizers, after seizing the protesters' mobile phones. Still they couldn't delete all. Here is another blow-by-blow account."
OS X

Apple 10.4.11 Update Can Brick Macs With Boot Camp 425

Posted by kdawson
from the doesn't-take-a-genius dept.
g-san writes "Some Mac users are having problems with the latest 10.4.11 update, yours truly included. The problem seems to be caused by the presence of a Boot Camp partition and renders the Mac unable to reboot after the update fails. Note the Geniuses at the Apple stores are recommending a full disk wipe; but data can be recovered via Firewire." MacNN has a note up that if you fall victim to this "known issue" and need to reformat the disk, you can't reinstall Boot Camp because it is no longer available to OS X 10.4 Tiger users.

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