Subject: General Tech | March 4, 2013 - 07:00 AM | Tim Verry
Tagged: wireless dock, wigig, dock, dell, computing, 802.11ad
Dell has launched a new docking station for its laptops. In an interesting twist, the dock connects to the computer over an 802.11ad “WiGig” link to provide up to 7Gbps bandwidth between the dock and laptop. The Dell Wireless D5000 docking station supports multi-display, USB 3.0, and audio output. According to Dell, it is the worlds first commercially available wireless dock.
The Wireless D5000 dock pairs with Dell's 1601 WiGig card, which is currently only available with Dell's Latitude 6430u laptop. Pairing is a simple matter of hitting the pairing button and hitting connect in Dell's Connection Manager software. A single USB 3.0 port and headphone jack are also available on the front of the device.
Rear IO on the Dell Wireless D5000 dock includes DC power jack, Ethernet jack, two USB 3.0 ports, a single HDMI port, and one DisplayPort output. Additionally, the D5000 uses a WiGig radio to provide the connectivitiy over a wireless link. WiGig, or 802.11ad, uses the 60GHz wireless spectrum to provide high bandwidth at short distances. The chip Dell is using in the dock is capable of falling back to 2.4GHz or 5GHz bands–you can expect significantly slower speeds in that situation though. You will be able to take your computer with you, set it on the desk and have two desktop monitors, a wired network connection, and USB 3.0 ports. Not bad, though Justin Kerr over at Maximum PC notes that wireless power for charging your laptop would have really ratcheted-up the dock's usefulness.
In terms of connectivity, there is nothing especially new here that Thunderbolt docks are not already providing (aside from the wireless nature, of course). I say this because the Dell D5000 dock's pricing is in line with many of the Thunderbolt options. If you can stand a wired connection to the dock and your laptop/ultrabook has a Thunderbolt port, you could grab a dock with similar port options, higher theoretical bandwith, and a Thunderbolt passthrough. The Dell D5000 is available for $270 at Dell's online store, but it is reportedly cheaper if purchased with the Dell Latitude 6430U laptop. In that scenario, the wireless dock is only $190 (which is, admittedly, pretty good even against Thunderbolt docks).
Subject: General Tech | November 12, 2012 - 06:29 AM | Tim Verry
Tagged: tesla, supercomputer, nvidia, k20x, HPC, CUDA, computing
Graphics card manufacturer NVIDIA launched a new Tesla K20X accelerator card today that supplants the existing K20 as the top of the line model. The new card cranks up the double and single precision floating point performance, beefs up the memory capacity and bandwidth, and brings some efficiency improvements to the supercomputer space.
While it is not yet clear how many CUDA cores the K20X has, NVIDIA has stated that it is using the GK110 GPU, and is running with 6GB of memory with 250 GB/s of bandwidth – a nice improvement over the K20’s 5GB at 208 GB/s. Both the new K20X and K20 accelerator cards are based on the company’s Kepler architecture, but NVIDIA has managed to wring out more performance from the K20X. The K20 is rated at 1.17 TFlops peak double precision and 3.52 TFlops peak single precision while the K20X is rated at 1.31 TFlops and 3.95 TFlops.
The K20X manages to score 1.22 TFlops in DGEmm, which puts it at almost three times faster than the previous generation Tesla M2090 accelerator based on the Fermi architecture.
Aside from pure performance, NVIDIA is also touting efficiency gains with the new K20X accelerator card. When two K20X cards are paired with a 2P Sandy Bridge server, NVIDIA claims to achieve 76% efficiency versus 61% efficiency with a 2P Sandy Bridge server equipped with two previous generation M2090 accelerator cards. Additionally, NVIDIA claims to have enabled the Titan supercomputer to reach the #1 spot on the top 500 green supercomputers thanks to its new cards with a rating of 2,120.16 MFLOPS/W (million floating point operations per second per watt).
NVIDIA claims to have already shipped 30 PFLOPS worth of GPU accelerated computing power. Interestingly, most of that computing power is housed in the recently unveiled Titan supercomputer. This supercomputer contains 18,688 Tesla K20X (Kepler GK110) GPUs and 299,008 16-core AMD Opteron 6274 processors. It will consume 9 megawatts of power and is rated at a peak of 27 Petaflops and 17.59 Petaflops during a sustained Linpack benchmark. Further, when compared to Sandy Bridge processors, the K20 series offers up between 8.2 and 18.1 times more performance at several scientific applications.
While the Tesla cards undoubtedly use more power than CPUs, you need far fewer numbers of accelerator cards than processors to hit the same performance numbers. That is where NVIDIA is getting its power efficiency numbers from.
NVIDIA is aiming the accelerator cards at researchers and businesses doing 3D graphics, visual effects, high performance computing, climate modeling, molecular dynamics, earth science, simulations, fluid dynamics, and other such computationally intensive tasks. Using CUDA and the parrallel nature of the GPU, the Tesla cards can acheive performance much higher than a CPU-only system can. NVIDIA has also engineered software to better parrellelize workloads and keep the GPU accelerators fed with data that the company calls Hyper-Q and Dynamic Parallelism respectively.
It is interesting to see NVIDIA bring out a new flagship, especially another GK110 card. Systems using the K20 and the new K20X are available now with cards shipping this week and general availability later this month.
You can find the full press release below and a look at the GK110 GPU in our preview.
Anandtech also managed to get a look inside the Titan supercomputer at Oak Ridge National Labratory, where you can see the Tesla K20X cards in action.
Subject: General Tech | June 26, 2012 - 09:27 AM | Tim Verry
Tagged: ubuntu, sputnik, software, programming, linux, dell, computing
Dell recently announced that it is turning to an open source Linux OS to craft a developer focused operating system. Enabled by Dell’s incubation program (and accompanying monetary funding), the pilot program – named Project Sputnik – is based on Dell’s XPS13 ultrabook and the Ubuntu 12.04 LTS OS.
The Project Sputnik program will run for six months. Its goal is to create the ideal hardware and software platform for software developers. Currently, that means using Dell’s XPS13 laptop and a customized version of the Ubuntu 12.04 Linux OS. The team behind the initiative are working closely with Canonical (Ubuntu developers) to put together a custom Ubuntu image with stripped down software, custom drivers, and only the software packages that developers want.
The team wants to make it easy for software programmers to get a hold of the programing languages and environments that they need to do their jobs. It will have integration with GitHub for coding projects as well.
In the video below Barton George, Director of Marketing for Dell, talks about the Project Sputnik program and how they hope to craft a laptop aimed directly at developers.
It is an interesting program, and I hope that it does well. You can find more information about Project Sputnik and how you can get involved at the Dell website.
Subject: Cases and Cooling | March 7, 2012 - 04:58 PM | Tim Verry
Tagged: Raspberry Pi, cases, computing, 3d printing
Marco Alici is not only eagerly awaiting his Raspberry Pi computer, but he is so excited that he has already started mocking up a case for it using Blender software and basic measurements of the Raspberry Pi board.
The case is a form fitting white plastic affair that has cutouts for each of the ports and an etched Raspberry Pi logo on the top. He states that because the Raspberry Pi has been designed to be as low cost as possible, the placement of connectors on the PCB makes for a less than ideal case. The RCA jack in particular juts out quite a bit from the casing, for example. Also the Raspberry Pi PCB does not have mounting holes to make attaching the case easy; Mr Alici had to come up with a snap-fit assembly to get around that issue.
The renderings of the case were made using Blender and Yafaray. He says that he is still waiting on his physical Rasberry Pi board to finalize the design and make it available for 3D printing at Shapeways. The case further is able to be constructed using injection molding, which he says makes for a cheap to produce case. More photos are available here. Now, if only I had a 3D printer!
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