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Comment: Re:Life Cycle (Score 1) 118

by ace of death (#34746394) Attached to: Researchers Claim 1,000 Core Chip Created

The drawback with using FPGAs compared to commodity processors is that the FPGA market currently does not support using the bleeding edge processes that CPUs are manufactured with. Typically a competitively priced FPGA will be at least one generation behind a CPU. In HPC FPGA's are a plausible improvement, but at a smaller scale the development costs for incorporating a custom firmware for an FPGA into an application are significant. It all really rests on what demand is out there for a particular algorithm to be implemented as a firmware for an FPGA. FPGAs have limited floating point resources, for example the largest Xilinx Virtex 6 FPGA has about 2000 25 x 18 floating point units.

Comment: Re:1,000 cores (Score 1) 118

by ace of death (#34746226) Attached to: Researchers Claim 1,000 Core Chip Created

"By creating more than 1,000 mini-circuits within the FPGA chip, the researchers effectively turned the chip into a 1,000-core processor - each core working on it's own instructions."
This is entirely feasible, but the 'cores' would have to be very very simple. Looking at the data sheet for the Xilinx Virtex 6 FPGA, it contains 118,560 Configurable Logic Blocks, which are equivalent to four Look Up Tables, and 8 flip-flops. If you wanted to create an 8-bit instruction set processor, it would require at minimum 16 CLBs just to decode the instructions, then you have to supply more logic blocks to do any actual arithmetic. So it is possible, but they are not talking about cores comparable to a PC.

http://www.xilinx.com/support/documentation/data_sheets/ds150.pdf

Open Source

ProFTPD.org Compromised, Backdoor Distributed 152

Posted by CmdrTaco
from the scary-world-we-live-in dept.
Orome1 writes "A warning has been issued by the developers of ProFTPD, the popular FTP server software, about a compromise of the main distribution server of the software project that resulted in attackers exchanging the offered source files for ProFTPD 1.3.3c with a version containing a backdoor. It is thought that the attackers took advantage of an unpatched security flaw in the FTP daemon in order to gain access to the server."
Government

Wikileaks Booted From Amazon 528

Posted by samzenpus
from the you're-outta-here dept.
dakameleon writes "Wikileaks has been booted from its Amazon hosting, and has now shifted to being hosted in Europe. Senator Lieberman, chairman of the Homeland Security and Governmental Affairs Committee, said in a statement, 'This morning Amazon informed my staff that it has ceased to host the WikiLeaks website,' which raises the question whether this was requested by the government. Senator Lieberman said Amazon's decision to cut off WikiLeaks 'is the right decision and should set the standard for other companies WikiLeaks is using to distribute its illegally seized material.'"
IT

Open Source Guacamole Puts VNC On the Web 180

Posted by CmdrTaco
from the there's-an-app-for-that dept.
tbitiss writes "A new open source project dubbed Guacamole allows users to access a desktop remotely through a web browser, potentially streamlining the requirements for client support and administration. Guacamole is an HTML5 and JavaScript (Ajax) VNC viewer that makes use of a VNC-to-XML proxy server written in Java. According to its developers, Guacamole is almost as responsive as native VNC and should work in any browser supporting the HTML5 canvas tag. Supporting 10 Linux desktops in 10 browser tabs? I like the sound of that."

"I'm not a god, I was misquoted." -- Lister, Red Dwarf

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