generationxyu - Slashdot User

Comment Re:With more memory per CPU, it might not suck (Score 1) 124

by generationxyu on Tuesday October 12, 2010 @09:48AM (#33868938) Attached to: IBM's Plans For the Cell Processor

Please don't confuse the SPUs (the eight coprocessors on the Cell die) with the PPU (the main CPU core). The PPU is also part of the Cell, so don't call the SPUs "Cell CPUs". There is also no MIPS core -- the PPU is a 3.2GHz PPC core with two hardware threads. The SPUs also run at 3.2GHz, but are not considered "real" CPUs since they can't bootstrap themselves, they have to be given tasks from the PPU. SPU programming forces a model on you as a developer -- modularize your tasks with as few synchronization points as possible and treat the SPUs like a thread pool. What's the problem here? This is a good model even if you're not limited to the SPUs. Developers who move more and more tasks to the SPUs will find themselves in a much better position next generation when parallelization is more massive, regardless of whether the Cell or something like it is involved.

Submission + - Flourish Conference, Free and Open Source Software

Submitted by

tsakkos

on Monday April 02, 2007 @01:52PM

tsakkos writes: "Is your career ready for Free and Free Libre Open Source Software? To answer this question, we have invited quite a few knowledgeable people from difference organizations: Google, IBM, Red Hat, and the Free Software Foundation. Join us to hear about the opportunities that FLOSS has to offer for our future. Hope to see you there! For additional information, please visit: http://www.flourishconf.com/"

Submission + - Alan Cox files patent for DRM

Submitted by

booooh

on Sunday January 14, 2007 @05:08PM

booooh writes: "Alan Cox has filed a patent for DRM (Digital Rights Management).
http://www.freshpatents.com/Rights-management-syst em-dt20050623ptan20050138406.php

A rights management system monitors and controls use of a computer program to prevent use that is not in compliance with acceptable terms.

The nice things about this are:

According to Red Hat's patent pledge they will not license this technology if the patent is granted, but rather will probably sue to avoid others using it.

It can probably be applied to the DRM that is in Vista...

see more details at: http://www.linuxquestions.org/questions/showthread .php?p=2574359"

Submission + - Why the blind are targeting Target

Submitted by

BigB

on Saturday January 06, 2007 @06:05PM

BigB writes: "Blind Americans are suing retailer Target for not making its Web site accessible and the court case is about to heat up. Meanwhile, Target isnt backing down, even though WalMart, Merck and others have done the right thing. http://www.networkworld.com/news/2007/010508-targe t.html"

Submission + - QuickTime users still at risk from MySpace bug

Submitted by

MySpaceDude

on Saturday January 06, 2007 @11:13AM

MySpaceDude writes: "The QuickTime vulnerability that led to a widespread worm outbreak on MySpace.com last month could be exploited again, according to security researcher Aviv Raff. Apple issued a temporary specific patch for the worm last month, but this bug can still be exploited to run unauthorized code on a patched computer. From MacWorld.com"

Submission + - Vista Exploit Surfaces on Russian Hacker Site

Submitted by

nithinraju

on Saturday January 06, 2007 @09:59AM

nithinraju writes: "Proof-of-concept exploit code for a privilege escalation vulnerability affecting all versions of Windowsincluding Vistahas been posted on a Russian hacker forum, forcing Microsoft to activate its emergency response process. Mike Reavey, operations manager of the Microsoft Security Response Center, confirmed that the company is closely monitoring the public posting, which first appeared on a Russian language forum on Dec. 15. It affects csrss.exe, which is the main executable for the Microsoft Client/Server Runtime Server. According to an alert cross-posted to security mailing lists, the vulnerability is caused by a memory corruption when certain strings are sent through the MessageBox API. The PoC reportedly allows for local elevation of privilege on Windows 2000 SP4, Windows Server 2003 SP1, Windows XP SP1, Windows XP SP2 and Windows Vista operating systems, Reavey said in an entry posted late Dec. 21 on the MSRC blog. Initial indications are that in order for the attack to be successful, the attacker must already have authenticated access to the target system. Of course these are preliminary findings and we have activated our emergency response process involving a multitude of folks who are investigating the issue in depth to determine the full scope and potential impact to Microsofts customers, Reavey added. While I know this is a vulnerability that impacts Windows Vista I still have every confidence that Windows Vista is our most secure platform to date, he added. The MSRC is expected to issue a formal security advisory with pre-patch workarounds. In the interim, the company is urging customers to enable a firewall, apply all security updates and install anti-virus and anti-spyware protection. To date, there are no reports of actual attacks against Windows users. The Microsoft confirmation comes hard on the heels of a claim by anti-virus vendor Trend Micro that underground hackers are selling zero-day exploits for Windows Vista at $50,000 a pop. MY BLOG IS http://alieneliminator.wordpress.com/"

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