#New Technique Could Enable Chips with Thousands of Cores Researchers from MIT have unveiled the first fundamentally new approach to cache coherence in more than three decades,
a memory-management scheme that could help enable chips with thousands of cores. In a modern, multicore chip, every core or processor has its own small memory cache, where it stores frequently used data.
But the chip also has shared a larger cache, which all the cores can access. If one core tries to update data in the shared cache,
other cores working on the same data need to know. So the shared cache keeps a directory
of which cores have copies of which data. That directory takes up a significant chunk of memory:
In a 64-core chip, it might be 12 percent of the shared cache. And that percentage will only increase with the core count.
Envisioned chips with 128,256, or even 1, 000 cores will need a more efficient way of maintaining cache coherence.
At the International Conference on Parallel Architectures and Compilation Techniques in October, MIT researchers unveil the first fundamentally new approach to cache coherence in more than three decades.
Whereas with existing techniques, the directory memory allotment increases in direct proportion to the number of cores, with the new approach, it increases according to the logarithm of the number of cores.
In a 128-core chip that means that the new technique would require only one-third as much memory as its predecessor.
With Intel set to release a 72-core high-performance chip in the near future, that a more than hypothetical advantage.
But with a 256-core chip, the space savings rises to 80 percent, and with a 1, 000-core chip, 96 percent.
When multiple cores are simply reading data stored at the same location, there no problem.
Conflicts arise only when one of the cores needs to update the shared data. With a directory system, the chip looks up
which cores are working on that data and sends them messages invalidating their locally stored copies of it. irectories guarantee that
when a write happens, no stale copies of the data exist, says Xiangyao Yu, an MIT graduate student in electrical engineering and computer science and first author on the new paper. fter this write happens,
no read to the previous version should happen. So this write is ordered after all the previous reads in physical-time order. ime travelwhat Yu and his thesis advisor Srini Devadas,
the Edwin Sibley Webster Professor in MIT Department of Electrical engineering and Computer science realized was that the physical-time order of distributed computations doesn really matter,
core A can keep working away on a piece of data that core B has provided since overwritten that the rest of the system treats core A work as having preceded core B. The ingenuity of Yu
and Devadasapproach is in finding a simple and efficient means of enforcing a global logical-time ordering. hat we do is we just assign time stamps to each operation,
With Yu and Devadassystem, each core has its own counter, and each data item in memory has associated an counter,
When a core reads a piece of data, it takes out a easeon it, meaning that it increments the data item counter to,
As long as the core internal counter doesn exceed 10, its copy of the data is valid. The particular numbers don matter much;
When a core needs to overwrite the data, however, it takes wnershipof it. Other cores can continue working on their locally stored copies of the data,
but if they want to extend their leases, they have to coordinate with the data item owner.
The core that doing the writing increments its internal counter to a value that higher than the last value of the data item counter.
Say, for instance, that cores A through D have all read the same data, setting their internal counters to 1
Core E needs to overwrite the data so it takes ownership of it and sets its internal counter to 11.
Its internal counter now designates it as operating at a later logical time than the other cores:
it will find it owned by core E, to which it sends a message. Core E writes the data back to the shared cache,
and core A reads it, incrementing its internal counter to 11 or higher. Unexplored potentialin addition to saving space in memory
Tardis also eliminates the need to broadcast invalidation messages to all the cores that are sharing a data item.
Simultaneously, the cost of 3-D printers has fallen sufficiently to make them household consumer items.
Now a team of MIT researchers has opened up a new frontier in 3-D printing:
From the discovery of core-forming process for bead-making in ancient Egypt, through the invention of the metal blow pipe during Roman times, to the modern industrial Pilkington process for making large-scale flat glass;
Like other 3-D printers now on the market, the device can print designs created in a computer-assisted design program,
far higher than the temperatures used for other 3-D printing. The stream of glowing molten glass from the nozzle resembles honey as it coils onto a platform,
Klein says the printing system is an example of multidisciplinary work facilitated by MIT flexible departmental boundaries in this case
a core faculty member at Harvard Wyss Institute, has developed now a strategy that has improved experimentally bone repair by boosting the survival rate of transplanted stem cells
At the macroscale, among other applications, invisibility cloaks could prove useful for 3d displays. This research was funded by the DOE Office of Science a
At the macroscale, among other applications, invisibility cloaks could prove useful for 3d displays. This research was funded by the DOE Office of Science i
Using mouse models, the researchers tested their sunblock against direct ultraviolet rays and their ability to cause sunburn.
The research group already recruited large populations of students to help determine the connectome of a part of the mouse retina
said Conor Walsh, a contributing author of the study, a Wyss Institute core faculty member, an assistant professor of mechanical and biomedical engineering AT SEAS,
and monitors to locate other vehicles on the road enables the Inspiration Trucks to remain in their lane,
or Universal Software Radio Peripheral. The system compares the reference and surveillance signals, interprets the very small frequency shifts,
Graphene has long been pursued as a potential replacement for indium tin oxide (ITO) as a transparent electrode material for displays.
Graphene has long been pursued as a potential replacement for indium tin oxide (ITO) as a transparent electrode material for displays.
#3-D Printing Software Turns Heart Scans into Surgical Models A new 3-D printing system can transform medical scans of a patient heart into a physical models that help
pediatricians explained how hardware and software specialized for genetic analysis can provide such fast and lifesaving information.
A processor from the company Edico Genome that designed to handle the big data of genetics.
Using Edico Genome DRAGEN processor, the researchers got this step down from 15 hours to 40 minutes.
The DRAGEN processor delivered its critical speed gains to the hospital servers thanks to its architecture,
He envisions the DRAGEN processor outputting its analysis directly into a patient electronic medical record, where actionable intelligence would be flagged for the physician.
#Bright blue PHOLEDS Almost Ready for TV A new energy-efficient organic LED (OLED) that glows a deep blue is finally close to meeting the most stringent U s. video display brightness requirements,
OLEDS have enabled a new generation of bright, high-quality, low-cost, power-efficient, flexible, lightweight flat panel displays.
Each pixel in an OLED display typically consists of red, green, and blue OLEDS that shine with different brightnesses to produce any desired color.
but developing the kind of bright deep blue PHOLEDS needed for video displays has proven challenging.
work sponsored by Universal Display Corporation and the U s. Air force. The researchers added their new lights nearly meet the most stringent requirements of the National Television systems Committee (NTSC),
and a confluence of new hardware technologies that freed computation from the desktop and automated multivariate collection of big data.
Finally, a confluence of hardware and software technology advances are creating opportunities to address this market.
inexpensive but sophisticated hardware sensors have emerged to automate the collection of massive data sets. With these technology shifts, exciting technologies like drones, AI, satellite mapping, robotics,
It hardware/software solution enables farmers to analyze every drop of water on their property,
The key innovation Apple made with the iphone interaction model was based getting touch input right its capacitive screens
All of that leads to a Square business having a core list of emails for customers that is ready to act on.
But square does it without any additional hardware by leveraging the fact that they own the payments stack.
location and cell network strength to automatically determine whether youe available for a call and display that information to friends.
which involves both DIY hardware and learn to code software, and similarly offers a graphical interface to simplify programming.
Commercial businesses can now license Airware Flight Core autopilot technology, Ground Control Station for dispatching drones,
Airware integrated hardware software, and cloud system lets enterprises customize drones to check on gas pipelines,
But long-term, theyl likely be commoditized as hardware makers around the globe clone and undercut each other on price.
Following a brief introduction by Airware CEO Jonathan Downey, CTO Buddy Michini demonstrated Airware core technologies:
the Flight Core autopilot system, which provides the brains to each drone that Airware powers,
Michini was excited also to talk about the App Core which will provide a full-on Linux computer for developers to work with in addition to the standard Flight Core autopilot and Ground Control Station integration.
When it rolls out to select Airware partners this summer, this new system will let customers take advantage of more advanced sensor
Airware can roll out new products like App Core without having to find new companies to sell to or upsell its current customers.
monitor farm land, and survey big tracts of land. Planes and helicopters can be terribly expensive for collecting this overhead video and measurement data, though.
Liquidity core technology was developed and patented out of Stony Brook University. It a membrane with pores of. 2 microns in width, small enough to eliminate microbial contaminants that make up the vast majority of water quality incidents.
Screen Shot 2015-05-04 at 7. 29.15 AM To create the nanofiber thin membrane that could be produced at scale,
Screen Shot 2015-05-04 at 7. 24.11 AM This filtration membrane is highly flexible and durable
Screen Shot 2015-05-04 at 7. 24.34 AM Liquidity tech has been verified third-party by Biovir Laboratories, a microbiological testing facility, that it meets the EPA standard of 99.9999
#Voxiebox Displays 3d Images Just Like R2d2's Message From Princess Leia Voxon, chosen out of the Hardware Alley to do the ildcardpitch during Techcrunch Disrupt NY, demonstrated a truly amazing
Its unique combination of hardware and software, developed over 30 years of tinkering in a New york garage, literally rints lightin three dimensions,
and a dome mirror projecting the image onto the screen. Specialized techniques render the 3d scene onto a spherical projection in real-time In other words,
your name comes up on a transparent LCD screen box, and you pull out a bowl of quinoa.
"One purpose of this experiment was to show we could integrate bacterial catalysts with semiconductor technology.
To do that, they need model systems to study nature's best designs, especially the catalysts that convert water and carbon dioxide into sugars at room temperatures."
150, were associated with inpatient stays in health care facilities, according to the Active Bacterial Core surveillance report by the Centres for Disease Control and Prevention in US.
made from the same material found in smartphone and TV screens, which could improve vision in older people with presbyopia and cataracts.
which we probably know better as the material used in the screens of TVS and smartphones,
the printed cells offer the potential to allow printing onto actual housing materials including glass
our proposed method is a unique hardware-based approach by exploiting carefully designed acoustic metamaterials,
while an entire catalog of 3d printable files can be found on a supplied USB memory stick.
the acetabular cup is manufactured by the most advanced 3d metal printing technology. In the past, the cup was made through titanium alloy casting,
in the future custom printing will ensure a perfect fit. So far, dozens of patients have received 3d printed hip replacement surgery,
By observing the transmitted video on a TV monitor, doctors can get a firsthand view of the patient organs
"A'wall wind'of stacked Microcubes3d printing technology, provided with the support of 3d Systemscloud-based manufacturing service Quickparts, played a major role in helping Yost realize this project.
Quickparts utilized 3d System SLS printing technology and three different materials: Duraform polyamide (PA), Duraform glass-filled (GF),
instead uses active mixing and fast-switching nozzles, allowing for the printing of concentrated viscoelastic inks and the simultaneous control of composition and geometry during printing.
Lewis is the Hansjörg Wyss Professor of Biologically Inspired Engineering at the Harvard John A. Paulson School of engineering and Applied sciences (SEAS) and a Core Faculty member at the Ywss Institute for Biologically Inspired Engineering at Harvard.
which allows the outline of prominent photo objects to be identified with the click of the mouse,
The team took advantage of 3d printing instant feedback and rapid prototyping to experiment with new shapes, printing speeds, battery technologies, cleaner burning fuels,
in order to enable the gripper to be usable for a variety of existing hardware bases, simply by swapping out the 3d printed interface.
such as small booksut with future research, that might not be a problem for long. uture work will take these core principles
Because of the sharing-function of the app, the OLO is also being touted as the first ocial3d printer. he idea behind the development of OLO was to create a cheap 3d printer that anyone could easily use,
Despite more and more ser-friendly3d printers and 3d printing services hitting the market, the truth is that most people either do not understand the technology,
and battery power source (standard AA 1. 5v that last for at least 100 printings), it is also ideal for anyone who is traveling
or other artistic models can be made for display or as gifts. Yet another advantage of resin 3d printing in comparison to FDM, for example, is that parts can be printed at full density in almost the same amount of time as hollow
the OLO simply replaces expensive lasers and projectors with the phone own LED display. When you place your smartphone underneath the glass surface of the resin container,
the app will make the screen light up in a pattern specific to the object you are printing.
optimized for the OLO smartphone display light-source. In order to get the OLO on the market and into the hands of new or would-be makers,
An app was created also to back the hardware with an integrated software. It called the pthalmicdocs Eye Appand will be available for download from the Apple App store from May 22.
D printing Mushtari is a wonderful example of how far this collaboration can bring us.
Both pieces of tech will be on display at the Annual Meeting for the American Urological Association in New orleans from today until May 19.
The microfish were manufactured with microscale continuous optical printing (COP), an advanced, high-resolution form of 3d printing that was created in Chen laboratory.
The COP printer functions at a rapid pace, and is able to produce hundreds of their microfish within seconds of printing.
What makes this printer so efficient is its digital micromirroring array device chip (DMD), containing millions of micromirrors that function separately from one another to cast the desired microfish design onto photosensitive material,
which is solidified then once exposed to UV LIGHT. This advanced process results in these 3d printed microfish, able to swim naturally through liquids,
since a egacy3d printer can still inspire advanced research studies and projects. The ultimate goal of Dr. Wong study is to demonstrate the technical feasibility of powering an FFF 3d printer using solar energy to manufacture functional
rom this, we were able to design an implant with a rigid sternal core and semi-flexible titanium rods to act as prosthetic ribs attached to the sternum.
e built the implant using our $1. 3 million Arcam printer. The printer works by directing an electron beam at a bed of titanium powder
in order to melt it. This process is repeated then building the product up layer-by-layer until you have a complete implant. 3d printing has significant advantages over traditional manufacturing methods, particularly for biomedical applications.
and printer right at the hospital to create custom nerve guides right on site to restore nerve function.
A model of the modified Leapfrog Printer used in production. 4d printing can be defined as the combined use of advanced 3d printing technology and the change of form over time.
On display at ORNL EERE Industry Day, is integrated a complete energy system, consisting of a 3d printed home with a small kitchenette,
#Freedee Printing Solutions Launches Hungary First 3d Academy 3d Academy may be one of the top trends in European 3d printing lately.
one of them is Freedee Printing Solutions, one of Hungary first 3d printing and 3d scanning service and retailer.
scalable 3d printer farm using Makerbot hardware and software, developed especially for schools and universities. At the 3d Academy, Freedee will have 10 Makerbot Replicators
which warms up the body core. As the warm blood leaves the core and travels toward the surface of the gills, it transfers its heat to the cold blood that is travelling back from the gills where it has absorbed oxygen from the water.
Wegner likens the system to a car radiator and says the exchange stops the heat from nearing the gill surface where it would be cooled by the water flow through the gills.
"The core message is using evidence to drive healthcare reform, "says Professor Marc Tennant of the University of Western australia,
evaluate toxicity and display the results in one simple process. Dr. Wang Zhiping, Director of research Programs at Agency for Science, Technology and Research's (A*STAR) Singapore Institute of Manufacturing Technology (SIMTECH
After seven days there was a sixfold increase in the formation of new blood vessels in the mouse back muscles
Very few think about the technology beneath their screens that conducts heat away from internal electronic components
or greater thermal conductivity. iniaturization results in less space to dissipate heat generated from today high-performance processors,
which are suited for use in a range of applications including tablets, lap tops, flat screen TVS and EMI shielding s
#Electroluminescence with Phosphor Nanoparticles Holds Promise for Modern Lighting Light-emitting diodes (LEDS) are the modern lighting devices used in lamps, signals, signs or displays.
Aizenberg is also co-director of the Kavli Institute for Bionano Science and Technology and a core faculty member at Harvard Wyss Institute for Biologically Inspired Engineering, leading the Adaptive Materials Technologies platform there.
Currently, colors on computer and iphone screens come from dye materials pre-placed on the pixels.
The new technology may hold promise for many applications such as for jewelry, automotive interior trim, aviation, signage, colored keypads, wearable and electronic displays.
exterior shell and a conductive iron-nickel core. In a paper published this week in the Journal of Applied Physics
National Centre for Basic Sciences, mixed nickel oxide and iron oxide as a hybrid material and fabricated the novel core/shell nanostructure electrode."
In Singh's experiment, the core/shell hybrid nanostructure was fabricated through a two-step method. Using a standard electro-deposition technique,
eventually developing a highly porous iron oxide-nickel oxide hybrid shell around the iron-nickel core."
"The advantage of this core/shell hybrid nanostructure is that the highly porous shell nanolayer provides a very large surface area for redox reactions
"The remarkable electrochemical performances and material properties suggest that the iron oxide-nickel oxide hybrid core/shell nanostructure could be a reliable and promising candidate for fabricating the next generation lightweight, low-cost
It combines state-of-the-art hardware with cutting-edge imaging software to record stunning 3d images of entire living cells within seconds and with a higher resolution than any conventional microscope available in the market.
a Core Faculty member at the Wyss Institute for Biologically Inspired Engineering at Harvard university and the Amy Smith Berylson Professor of Materials science at Harvard School of engineering and Applied sciences (SEAS), has developed an entirely new,
and Display Solution AG, showcased a pioneering 3d encapsulated touch sensor for the automotive industry. The partnership is delivering the first ever,
The demonstrator provides an example of multifunctional display with 5 finger touch realized in IML technology.
For example, a keyboard sticker could be used to type and send messages. Currently the sensor stickers are connected via cable to a computer system.
forming a water-soluble nanoparticle with the drug hidden in its core. These nanoparticles are highly soluble in blood
The former have a shell that is bonded directly to the core, but yolk-shell particles feature a void between the two equivalent to where the white of an egg would be.
the aluminum core continuously shrinks to become a 30-nm-across olk, which shows that small ions can get through the shell.
while a first pulse excites the sample under study, a second pulse monitors the change in the sample.
The study, published today (date) in Nature Communications shows that cancer mouse models injected with immune cells carrying SPIOS and armed with the cancer killing oncolytic virus (OV)
#Universitat Jaume I Patents Graphene-Based Catalysts for Energy conversion and Storage Researchers at the Universitat Jaume I have developed materials based on graphene that can catalyse reactions for the conversion and storage of energy.
Thus, the patented materials can be used both in the development of catalysts as well as storage batteries or other energy types p
it should be fairly straightforward to make the SIM technologies accessible and affordable to other labs."Most of the magic is in the software, not the hardware,
One purpose of this experiment was to show we could integrate bacterial catalysts with semiconductor technology.
especially the catalysts that convert water and carbon dioxide into sugars at room temperatures.""This is not about mimicking nature directly
Enclosed within the platelet membranes are made nanoparticle cores of a biodegradable polymer that can be metabolized safely by the body.
The nanoparticles can be packed with many small drug molecules that diffuse out of the polymer core and through the platelet membrane onto their targets.
the platelet membranes were broken up into much smaller pieces and fused to the surface of nanoparticle cores.
One of the most critical biological and medical tools available today, it lies at the core of genome analysis. Reading the exact make-up of genes,
This is a crucial step in creating a new generation of foldable electronics-think a flat-screen television that can be rolled up for easy portability-and implantable medical devices.
The researchers used mouse embryonic fibroblast cells to determine biocompatibility; that, along with the fact that the stretchability of gold nanomesh on a slippery substrate resembles the bioenvironment of tissue
In comparison with other vapor sensors based on nanosheets, the new photonic architecture displays markedly increased response times, higher sensitivity and long-term stability. his unique combination of properties enables it to track
#Nanostructure Changes Colour When Finger Comes Near Touchscreens suffer from mechanical wear over time and are a transmission path for bacteria
What they really want is to use it in touchless displays. ecause these sensors react in a very local manner to any increase in moisture,
it is quite conceivable that this sort of material with moisture-dependent properties could also be used for touchless displays
and monitors, said Ganter. Touchless screens of this kind would require nothing more than a finger to get near the display to change their electrical or optical properties and with them the input signal at a specific point on the display.
Taking phosphatoantimonate nanosheets as their basis the Stuttgart scientists then developed a photonic nanostructure which reacts to the moisture by changing colour. f this was built into a monitor,
the users would then receive visible feedback to their finger motionexplained Katalin Szendrei, also a doctoral student in Bettina Lotsch group.
for instance by moving a finger towards the screen. he reason for this lies in the storage of water molecules between the phosphatoantimonate layers,
we could see touchless displays also being deployed in many places where people currently have to touch monitors to navigate,
Displays in public placesthat are used by many different people would have distinct hygiene benefits if they were touchless.
if theye going to be used in anything like a display. And that, again, has to meet not one but two different requirements:
a USB-powered breath-controlled device that resembles a harmonica and comes with special software to allow musicians to play digital music or control a computer with varying levels of breath.
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