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News Article | May 21, 2017
Site: news.yahoo.com

A supporter of Iranian president Hassan Rouhani holds his poster as she celebrates his victory in the presidential election, in Tehran, Iran, May 20, 2017. TIMA via REUTERS LONDON (Reuters) - Iranian hardliners indignant at President Hassan Rouhani's re-election vowed on Sunday to press their conservative agenda, with some saying his caustic campaign trail attacks on their candidate would bring a backlash. Rouhani won decisively with 57 percent of the vote on Friday, with promises of more engagement with the outside world, more economic opportunities for Iran’s youth, as well as social justice, individual freedoms and political tolerance. The president, known for decades as a conciliatory figure, remade himself on the campaign trail as a reformist political street fighter, accusing hardliners of brutality and corruption in language that frequently strained at the boundaries of what is permitted in Iran. At one point, Supreme Leader Ayatollah Ali Khamenei called rhetoric in a TV debate "unworthy". In his victory speech, Rouhani continued to sound his defiant note, saying the nation had chosen "the path of interaction with the world, away from violence and extremism." Some conservatives were further angered when Rouhani's supporters danced and sang in the streets in some cities on Saturday evening to celebrate his victory. Men and women participated together, testing the strict rules meant to enforce sexual segregation in public in Iran. The victory for the reform camp went beyond the presidency: in Tehran, Rouhani allies won all 21 seats on the city council, defeating conservatives who had controlled it for 14 years. Rouhani's defeated rival, hardline judge Ebrahim Raisi, a protege of Khamenei, said in his first comments after the election that the almost 16 million voters who supported him must not be ignored. "Enjoying such support, I will continue my fight against corruption and inequality and my efforts to solidify the values of the Islamic Revolution," Raisi, who received 38 percent of the vote, said in statement. A pro-Raisi coalition of conservative parties and clerical bodies told its supporters on Sunday the election was "not the end, but just a beginning". "We failed in our first step to form a government. But 16 million votes shows a real demand for change," the Front of Islamic Revolution Forces said in a statement. An Iranian journalist who had spoken to Raisi supporters after the election told Reuters they were furious at the way the president had spoken about their candidate and themselves. "We do not seek a fight, it is Rouhani who has taken a confrontational approach,” the journalist quoted one of the Raisi supporters as having told him. "Rouhani called Raisi supporters extremist and violent. How can a president insult 16 million people of his country? His sarcastic comments against the Supreme Leader and the security forces show he wants to pick a fight.” On the internet, other conservatives complained about the post-election celebrations. A Raisi supporter identified as Mostafa Allali said on Twitter: "It was obscene to see boys and girls were dancing in the streets. My wife said let's go home before God's wrath falls on us." Hardline media rumbled with discontent about the outcome. The daily Kayhan, whose head is named by Khamenei, said that Raisi would have at least doubled his votes if he had been given the coverage Rouhani enjoys as president. The Ammar website, which reflects the views of the Basij hardline volunteer militia, wrote: "Hassan Rouhani can for a month destroy the judiciary, the Revolutionary Guards and the Basij and ... and no one can tell him anything?" Yet most hardline politicians have been more reserved, at least in public, choosing to follow Khamenei's lead in saying that the election's high turnout was a victory for the Islamic ruling system, without focusing on the outcome. Reformist university professor Sadeq Zibakalam said hardliners were still refusing to accept the election's verdict: that an overwhelming majority of Iranians want the system to become more open. "Unfortunately, instead of accepting the message issued by the results, they are hiding behind congratulations to society and the system over the high turnout," Zibakalam wrote in the daily Ghanoon.


Vivet P.,CEA Grenoble | Beigne E.,CEA Grenoble | Lebreton H.,CEA Grenoble | Zergainoh N.-E.,TIMA
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2011

With growing integration, power consumption is becoming a major issue for multi-core chips. At system level, per-core DVFS is expected to save substantial energy provided an adapted control. In this paper we propose a local on-line optimization technique to reduce energy in data-flow architecture, thanks to a Local Power Manager (LPM) using Vdd-Hopping for efficient local DVFS. The proposed control is a hybrid global and local scheme which respects throughput and latency constraints. The approach has been fully validated on a real MIMO Telecom application using a SystemC platform instrumented with power estimates. Local DVFS brings 45% power reduction compared to idle mode. When local on-line optimization benefit from computation time variations, 30% extra energy savings can be achieved. © 2011 Springer-Verlag Berlin Heidelberg.


Jean-Mistral C.,CEA Grenoble | Basrour S.,TIMA
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2010

Scavenging energy from human motion is a challenge to supply low consumption systems for sport or medical applications. A promising solution is to use electroactive polymers and especially dielectric polymers to scavenge mechanical energy during walk. In this paper, we present a tubular dielectric generator which is the first step toward an integration of these structures into textiles. For a 10cm length and under a strain of 100%, the structure is able to scavenge 1.5μJ for a poling voltage of 200V and up to 40μJ for a poling voltage of 1000V. A 30cm length structure is finally compared to our previous planar structure, and the power management module for those structures is discussed. © 2010 Copyright SPIE - The International Society for Optical Engineering.


Frank T.,STMicroelectronics | Moreau S.,CEA Grenoble | Chappaz C.,STMicroelectronics | Arnaud L.,CEA Grenoble | And 3 more authors.
Proceedings - Electronic Components and Technology Conference | Year: 2012

The electromigration (EM) behavior of Through Silicon Via (TSV) interconnects used for 3D integration is studied. Impact of the TSV section size on EM lifetime and consideration of increasing metal level thickness are reported. Void nucleates and grows right after TSV, in the adjacent metal level. The TSV section size at metal level interface is critical for high EM performance. Thickness increase of metal level is revealed to not directly increase EM robustness, since irregular void nucleation and growth impact expected performances. © 2012 IEEE.


Frank T.,STMicroelectronics | Moreau S.,CEA Grenoble | Chappaz C.,STMicroelectronics | Leduc P.,CEA Grenoble | And 6 more authors.
Microelectronics Reliability | Year: 2013

In this paper, reliability of Through Silicon via (TSV) interconnects is analyzed for two technologies. First part presents an exhaustive analysis of Cu TSV-last approach of 2 μm diameter and 15 μm of depth. Thermal cycling and electromigration stresses are performed on dedicated devices. Thermal cycling is revealed to induce only defects on non-mature processes. Electromigration induces voids in adjacent metal level, right at TSV interface. Moreover, the expected lifetime benefit by increasing line thickness does not occur due to increasing dispersion of voiding mechanism. Second part covers reliability of Cu TSV-middle technology, of 10 μm diameter and 80 μm depth, with thermal cycling, BEoL dielectric breakdown, and electromigration study. Thermal cycling is assessed on two designs: isolated and dense TSV patterns. Dielectric breakdown tests underline an impact of TSV on the reliability of metal level dielectrics right above TSV. Electromigration reveal similar degradation mechanism and kinetic as on TSV-last approach. © 2012 Elsevier Ltd. All rights reserved.


The U.S. Senate is finally replacing BlackBerry devices with iPhones or Samsung smartphones. The Canadian mobile phone maker has been facing stiff competition from rivals and lost a major chunk of its business to other handset makers. BlackBerry devices have the reputation of being one of the most secure mobile phones and were used by members of the U.S. Senate for many years. "If we can secure the device, it makes securing the software and the data management...that much more easier," said John Chen, the CEO of BlackBerry. "This is why all the governments in the major developed countries are using our devices. You can see the heads of state using our devices." However, BlackBerry's U.S. Senate era is coming to an end as Senate staff will reportedly no longer receive new BlackBerry phones, and Apple or Samsung smartphones may replace them. A previous report highlighted that BlackBerry will discontinue BlackBerry 10 running devices, which could be a reason for the U.S. Senate to look for alternatives. However, BlackBerry denies such claims and says it will continue support for existing devices. Meanwhile, reports suggest that the U.S. Senate may consider giving the Samsung Galaxy S6 or iPhone SE to its staff. Android and iOS devices also have a strong security system. Both the operating systems offer data encryption, which is an important aspect of keeping content secured on a device. Samsung Knox, an enterprise mobile security system, may play an important role in attracting U.S. Senate staff. Knox has multi-layered security to keep the content of a device safe from any hacking attempts. "Knox Workspace is secured from the boot up. Only the Knox-hardened Android platform protects your infrastructure with multi-level, hardware-to-application security via Trusted Boot and ARM TrustZone-based Integrity Measurement Architecture (TIMA) to keep your business intelligence and network safe from hacking, viruses, and unauthorized access," says Samsung. Although Samsung may have high security features in its devices, Android operating systems face a lot of attacks from hackers every day. Security firm Duo Labs reported that Samsung devices are one of the safest devices in the smartphone space, that is, if they get security updates quickly. Apple also claims that iOS is designed in a way that offers users secure usage at all times. "Worldwide governments have collaborated with Apple and developed guides designed to give instructions and recommendations for maintaining a more secure environment," says Apple. However, Apple is involved in a heated debate with the FBI over encryption of its iPhones, which may make it difficult for the company to strike a deal with the U.S. Senate. It remains to be seen which mobile phone maker is able to convince the U.S. Senate with its security features and procure a deal in the near term. © 2017 Tech Times, All rights reserved. Do not reproduce without permission.


Chaix F.,TIMA | Avresky D.,IRIANC | Zergainoh N.-E.,TIMA | Nicolaidis M.,TIMA
Proceedings - 2010 9th IEEE International Symposium on Network Computing and Applications, NCA 2010 | Year: 2010

Future applications will require processors with many cores communicating through a regular interconnection network. Meanwhile, as the Deep submicron technology foreshadows highly defective chips era, fault-tolerant designs become compulsory. In particular, the fault tolerance of a core interconnect is critical, and inevitably increases its complexity. In this paper, we present a novel adaptive routing algorithm that is able to route messages in the presence of any set of multiple nodes and links failures, as long as a path exists. Compared to the existing solutions, the proposed algorithm provides fault tolerance without using any routing table. It is scalable and can be applied to multicore chips with a 2D mesh core interconnect of any size. The algorithm is deadlock-free and avoids infinite looping in fault-free and faulty 2D meshes, based on Virtual Networks and Virtual Channels. We simulated the proposed algorithm using the worst case scenario, regarding the traffic patterns and the failure rate up to 40%. Experimentation results confirmed that the algorithm tolerates multiple failures even in the most extreme failure patterns. Additionally, we monitored the trade off between the fault tolerance and the average latency for faulty cases, as measurement of the performance degradation. The algorithm detects the interconnects partitioning and enables "preferred paths" for streaming applications. © 2010 IEEE.


Chaix F.,TIMA | Avresky D.,IRIANC | Zergainoh N.-E.,TIMA | Nicolaidis M.,TIMA
Proceedings -Design, Automation and Test in Europe, DATE | Year: 2011

Future applications will require processors with many cores communicating through a regular interconnection network. Meanwhile, the Deep submicron technology foreshadows highly defective chips era. In this context, not only fault-tolerant designs become compulsory, but their performance under failures gains importance. In this paper, we present a deadlock-free fault-tolerant adaptive routing algorithm featuring Explicit Path Routing in order to limit the latency degradation under failures. This is particularly interesting for streaming applications, which transfer huge amount of data between the same source-destination pairs. The proposed routing algorithm is able to route messages in the presence of any set of multiple nodes and links failures, as long as a path exists, and does not use any routing table. It is scalable and can be applied to multicore chips with a 2D mesh core interconnect of any size. The algorithm is deadlock-free and avoids infinite looping in fault-free and faulty 2D meshes. We simulated the proposed algorithm using the worst case scenario, with different failure rates. Experimentation results confirmed that the algorithm tolerates multiple failures even in the most extreme failure patterns. Additionally, we monitored the interconnect traffic and average latency for faulty cases. For 20x20 meshes, the proposed algorithm reduces the average latency by up to 50%. © 2011 EDAA.


Benhassain A.,STMicroelectronics | Cacho F.,STMicroelectronics | Huard V.,STMicroelectronics | Anghel L.,TIMA
CEUR Workshop Proceedings | Year: 2016

In-situ monitor is a promising strategy to measure timing slacks and to provide pre-error warning prior to any timing violation. In this work, we demonstrate that the usage of in-situ monitors with a feedback loop of voltage regulation is suitable for process and temperature compensation. Copyright © 2016 for the individual papers by the papers' authors.


Charif A.,TIMA | Zergainoh N.-E.,TIMA | Nicolaidis M.,TIMA
Proceedings of the 21st IEEE International On-Line Testing Symposium, IOLTS 2015 | Year: 2015

NoCs (Networks-on-Chip) are an attractive alternative to communication buses for SoCs (Systems-on-Chip) as they offer both high scalability and low power consumption. However, designing such systems in the nanoscale era brings up some serious concerns about reliability. Our aim is to design robust NoCs while limiting performance degradation. In this paper, we introduce several techniques meant to increase the reliability and performance of NoCs. We combine these techniques to build a fault-tolerant, deadlock-free and congestion-aware routing algorithm called MUGEN. The algorithm comprises an optimized method to exchange messages between different virtual channel classes, a selection function that uses distant router link information to avoid dead-ends and a new congestion metric used to guide routing decisions towards less congested areas. We simulate an 8×8 Mesh NoC with fault injection to evaluate each method used by MUGEN individually before comparing the full algorithm with existing works from literature. We present promising results about the proposed techniques both in terms of fault-tolerance and performance. © 2015 IEEE.

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