This paper provides an overview of the latest developments in the development of semiconductor devices for implementation of electronic modules for EVs and HEVs and the implementation of charging stations and the interface with the smart grid infrastructure. The design choices are influenced by the power level of the different applications.
{"title":"Semiconductor technologies for smart mobility management","authors":"Reiner John, M. Schulz, O. Vermesan, K. Kriegel","doi":"10.7873/DATE.2013.352","DOIUrl":"https://doi.org/10.7873/DATE.2013.352","url":null,"abstract":"This paper provides an overview of the latest developments in the development of semiconductor devices for implementation of electronic modules for EVs and HEVs and the implementation of charging stations and the interface with the smart grid infrastructure. The design choices are influenced by the power level of the different applications.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76652817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mutation testing is an established technique for evaluating validation thoroughness, but its adoption has been limited by the manual effort required to analyze the results. This paper describes the use of coverage discounting for mutation analysis, where undetected mutants are explained in terms of functional coverpoints, simplifying their analysis and saving effort. Two benchmarks are shown to compare this improved flow against regular mutation analysis. We also propose a confidence metric and simulation ordering algorithm optimized for coverage discounting, potentially reducing overall simulation time.
{"title":"Mutation analysis with coverage discounting","authors":"Peter Lisherness, Nicole Lesperance, K. Cheng","doi":"10.7873/DATE.2013.021","DOIUrl":"https://doi.org/10.7873/DATE.2013.021","url":null,"abstract":"Mutation testing is an established technique for evaluating validation thoroughness, but its adoption has been limited by the manual effort required to analyze the results. This paper describes the use of coverage discounting for mutation analysis, where undetected mutants are explained in terms of functional coverpoints, simplifying their analysis and saving effort. Two benchmarks are shown to compare this improved flow against regular mutation analysis. We also propose a confidence metric and simulation ordering algorithm optimized for coverage discounting, potentially reducing overall simulation time.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75954322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The improvement of the computer system performance is constrained by the well-known memory wall and power wall. It has been recognized that the memory architecture and the interconnect architecture are becoming the overwhelming bottleneck in computer performance. Disruptive technologies, such as emerging non-volatile memory (NVM) technologies, 3D integration, and optical interconnects, are envisioned as promising future memory and interconnect technologies that can fundamentally change the landscape of the future computer architecture design with profound impact. This invited survey paper gives a brief introduction of these future memory and interconnect technologies, discusses the opportunities and challenges of these new technologies for future computer system designs.
{"title":"Future memory and interconnect technologies","authors":"Yuan Xie","doi":"10.7873/DATE.2013.202","DOIUrl":"https://doi.org/10.7873/DATE.2013.202","url":null,"abstract":"The improvement of the computer system performance is constrained by the well-known memory wall and power wall. It has been recognized that the memory architecture and the interconnect architecture are becoming the overwhelming bottleneck in computer performance. Disruptive technologies, such as emerging non-volatile memory (NVM) technologies, 3D integration, and optical interconnects, are envisioned as promising future memory and interconnect technologies that can fundamentally change the landscape of the future computer architecture design with profound impact. This invited survey paper gives a brief introduction of these future memory and interconnect technologies, discusses the opportunities and challenges of these new technologies for future computer system designs.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73018789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposes a Critical-Section-Level timing synchronization approach for deterministic Multi-Core Instruction-Set Simulation (MCISS). By synchronizing at each lock access instead of every shared-variable access and using a simple lock usage status managing scheme, our approach significantly improves simulation performance while executing all critical sections in a deterministic order. Experiments show that our approach performs 295% faster than the shared-variable synchronization approach on average and can effectively facilitate system-level software/hardware co-simulation.
{"title":"A Critical-Section-Level timing synchronization approach for deterministic multi-core instruction-set simulations","authors":"Fan-Wei Yu, Bo-Han Zeng, Yu-Hung Huang, Hsin-I Wu, Che-Rung Lee, R. Tsay","doi":"10.7873/DATE.2013.140","DOIUrl":"https://doi.org/10.7873/DATE.2013.140","url":null,"abstract":"This paper proposes a Critical-Section-Level timing synchronization approach for deterministic Multi-Core Instruction-Set Simulation (MCISS). By synchronizing at each lock access instead of every shared-variable access and using a simple lock usage status managing scheme, our approach significantly improves simulation performance while executing all critical sections in a deterministic order. Experiments show that our approach performs 295% faster than the shared-variable synchronization approach on average and can effectively facilitate system-level software/hardware co-simulation.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72844488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The exponentially growing complexity of modern processors intensifies verification challenges. Traditional pre-silicon verification covers less and less of the design space, resulting in increasing post-silicon validation effort. A critical challenge is the manual debugging of intermittent failures on prototype chips, where multiple executions of a same test do not yield a consistent outcome. We leverage the power of machine learning to support automatic diagnosis of these difficult, inconsistent bugs. During post-silicon validation, lightweight hardware logs a compact measurement of observed signal activity over multiple executions of a same test: some may pass, somemay fail. Our novel algorithm applies anomaly detection techniques similar to those used to detect credit card fraud to identify the approximate cycle of a bug's occurrence and a set of candidate root-cause signals. Compared against other state-of-the-art solutions in this space, our new approach can locate the time of a bug's occurrence with nearly 4x better accuracy when applied to the complex OpenSPARC T2 design.
{"title":"Machine learning-based anomaly detection for post-silicon bug diagnosis","authors":"A. DeOrio, Qingkun Li, M. Burgess, V. Bertacco","doi":"10.5555/2485288.2485411","DOIUrl":"https://doi.org/10.5555/2485288.2485411","url":null,"abstract":"The exponentially growing complexity of modern processors intensifies verification challenges. Traditional pre-silicon verification covers less and less of the design space, resulting in increasing post-silicon validation effort. A critical challenge is the manual debugging of intermittent failures on prototype chips, where multiple executions of a same test do not yield a consistent outcome. We leverage the power of machine learning to support automatic diagnosis of these difficult, inconsistent bugs. During post-silicon validation, lightweight hardware logs a compact measurement of observed signal activity over multiple executions of a same test: some may pass, somemay fail. Our novel algorithm applies anomaly detection techniques similar to those used to detect credit card fraud to identify the approximate cycle of a bug's occurrence and a set of candidate root-cause signals. Compared against other state-of-the-art solutions in this space, our new approach can locate the time of a bug's occurrence with nearly 4x better accuracy when applied to the complex OpenSPARC T2 design.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73645676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The increasing demand for fast and accurate product pricing and risk computation together with high energy costs currently make finance and insurance institutes to rethink their IT infrastructure. Heterogeneous systems including specialized accelerator devices are a promising alternative to current CPU and GPU-clusters towards hardware accelerated computing. It has already been shown in previous work that complex state-of-the-art computations that have to be performed very frequently can be sped up by FPGA accelerators in a highly efficient way in this domain. A very common task is the pricing of credit derivatives, in particular options, under realistic market models. Monte Carlo methods are typically employed for complex or path dependent products. It has been shown that the multi-level Monte Carlo can provide a much better convergence behavior than standard single-level methods. In this work we present the first hardware architecture for pricing European barrier options in the Heston model based on the advanced multi-level Monte Carlo method. The presented architecture uses industry-standard AXI4-Stream flow control, is constructed in a modular way and can be extended to more products easily. We show that it computes around 100 millions of steps in a second with a total power consumption of 3.58 W on a Xilinx Virtex-6 FPGA.
{"title":"A multi-level Monte Carlo FPGA accelerator for option pricing in the Heston model","authors":"C. D. Schryver, P. Torruella, N. Wehn","doi":"10.7873/DATE.2013.063","DOIUrl":"https://doi.org/10.7873/DATE.2013.063","url":null,"abstract":"The increasing demand for fast and accurate product pricing and risk computation together with high energy costs currently make finance and insurance institutes to rethink their IT infrastructure. Heterogeneous systems including specialized accelerator devices are a promising alternative to current CPU and GPU-clusters towards hardware accelerated computing. It has already been shown in previous work that complex state-of-the-art computations that have to be performed very frequently can be sped up by FPGA accelerators in a highly efficient way in this domain. A very common task is the pricing of credit derivatives, in particular options, under realistic market models. Monte Carlo methods are typically employed for complex or path dependent products. It has been shown that the multi-level Monte Carlo can provide a much better convergence behavior than standard single-level methods. In this work we present the first hardware architecture for pricing European barrier options in the Heston model based on the advanced multi-level Monte Carlo method. The presented architecture uses industry-standard AXI4-Stream flow control, is constructed in a modular way and can be extended to more products easily. We show that it computes around 100 millions of steps in a second with a total power consumption of 3.58 W on a Xilinx Virtex-6 FPGA.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73649210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
While Coarse-Grained Reconfigurable Architectures (CGRAs) are very efficient at handling regular, compute-intensive loops, their weakness at control-intensive processing and the need for frequent reconfiguration require another processor, for which usually a main processor is used. To minimize the overhead arising in such collaborative execution, we integrate a dedicated sequential processor (SP) with a reconfigurable array (RA), where the crucial problem is how to share the memory between SP and RA while keeping the SP's memory access latency very short. We present a detailed architecture, control, and program example of our approach, focusing on our optimized on-chip shared memory organization between SP and RA. Our preliminary results demonstrate that our optimized memory architecture is very effective in reducing kernel execution times (23.5% compared to a more straightforward alternative), and our approach can reduce the RA control overhead and other sequential code execution time in kernels significantly, resulting in up to 23.1% reduction in kernel execution time, compared to the conventional system using the main processor for sequential code execution.
{"title":"Fast shared on-chip memory architecture for efficient hybrid computing with CGRAs","authors":"Jongeun Lee, Yeonghun Jeong, Sungsok Seo","doi":"10.5555/2485288.2485662","DOIUrl":"https://doi.org/10.5555/2485288.2485662","url":null,"abstract":"While Coarse-Grained Reconfigurable Architectures (CGRAs) are very efficient at handling regular, compute-intensive loops, their weakness at control-intensive processing and the need for frequent reconfiguration require another processor, for which usually a main processor is used. To minimize the overhead arising in such collaborative execution, we integrate a dedicated sequential processor (SP) with a reconfigurable array (RA), where the crucial problem is how to share the memory between SP and RA while keeping the SP's memory access latency very short. We present a detailed architecture, control, and program example of our approach, focusing on our optimized on-chip shared memory organization between SP and RA. Our preliminary results demonstrate that our optimized memory architecture is very effective in reducing kernel execution times (23.5% compared to a more straightforward alternative), and our approach can reduce the RA control overhead and other sequential code execution time in kernels significantly, resulting in up to 23.1% reduction in kernel execution time, compared to the conventional system using the main processor for sequential code execution.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84588144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Flexible electronics are possible alternative for portable consumer applications with many advantages. However, the circuit design for flexible electronics is still challenging, especially for sensitive analog circuits. Significant parameter variations and bending effects of flexible TFTs further increase the difficulties for circuit designers. In this paper, an automatic circuit sizing technique is proposed for the analog circuits with flexible TFTs. The process variation and bending effects of flexible TFTs are considered simultaneously in the optimization flow. As shown in the experimental results, the proposed approach can further improve the design yield and significantly reduce the design overhead.
{"title":"Automatic circuit sizing technique for the analog circuits with flexible TFTs considering process variation and bending effects","authors":"Yen-Lung Chen, Wan-Rong Wu, Guan-Ruei Lu, C. Liu","doi":"10.7873/DATE.2013.297","DOIUrl":"https://doi.org/10.7873/DATE.2013.297","url":null,"abstract":"Flexible electronics are possible alternative for portable consumer applications with many advantages. However, the circuit design for flexible electronics is still challenging, especially for sensitive analog circuits. Significant parameter variations and bending effects of flexible TFTs further increase the difficulties for circuit designers. In this paper, an automatic circuit sizing technique is proposed for the analog circuits with flexible TFTs. The process variation and bending effects of flexible TFTs are considered simultaneously in the optimization flow. As shown in the experimental results, the proposed approach can further improve the design yield and significantly reduce the design overhead.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84954583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Wettin, Jacob Murray, P. Pande, B. Shirazi, A. Ganguly
Traditional multi-core designs, based on the Network-on-Chip (NoC) paradigm, suffer from high latency and power dissipation as the system size scales up due to the inherent multi-hop nature of communication. Introducing long-range, low power, and high-bandwidth, single-hop links between far apart cores can significantly enhance the performance of NoC fabrics. In this paper, we propose design of a small-world network based NoC architecture with on-chip millimeter (mm)-wave wireless links. The millimeter wave small-world NoC (mSWNoC) is capable of improving the overall latency and energy dissipation characteristics compared to the conventional mesh-based counterpart. The mSWNoC helps in improving the energy dissipation, and hence the thermal profile, even further in presence of network-level dynamic voltage and frequency scaling (DVFS) without incurring any additional latency penalty.
{"title":"Energy-efficient multicore chip design through cross-layer approach","authors":"P. Wettin, Jacob Murray, P. Pande, B. Shirazi, A. Ganguly","doi":"10.7873/DATE.2013.156","DOIUrl":"https://doi.org/10.7873/DATE.2013.156","url":null,"abstract":"Traditional multi-core designs, based on the Network-on-Chip (NoC) paradigm, suffer from high latency and power dissipation as the system size scales up due to the inherent multi-hop nature of communication. Introducing long-range, low power, and high-bandwidth, single-hop links between far apart cores can significantly enhance the performance of NoC fabrics. In this paper, we propose design of a small-world network based NoC architecture with on-chip millimeter (mm)-wave wireless links. The millimeter wave small-world NoC (mSWNoC) is capable of improving the overall latency and energy dissipation characteristics compared to the conventional mesh-based counterpart. The mSWNoC helps in improving the energy dissipation, and hence the thermal profile, even further in presence of network-level dynamic voltage and frequency scaling (DVFS) without incurring any additional latency penalty.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84974842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Counterfeiting is no longer limited to just fashion or luxury goods, the phenomenon has now reached electronics components which failure represents a high risk to the safety and security of human communities. One way for the semiconductor (SC) industry to fight against counterfeiting of electronic parts is to add technological innovation at the component level itself. The target is to enable the product authentication in a fast and reliable way. Because semiconductor manufacturing is a complex and delicate operation producing highly complex products which are sensitive to many environmental factors, any introduction of changes in its production - which the implementation of anti-counterfeiting (A/C) technologies must also comply to - must undergo thorough testing and qualification steps. This is mandatory to control the compliancy to the strict delivery requirements, quality and reliability level the industry has established, in line with the product performance specifications. This paper aims to explain the comprehensive requirements specification developed by members of semiconductor and related industries in Europe, to add authentication technologies solutions into IC packages. It also describes the qualification processes and testing plans to implement the most adequate and effective anti-counterfeiting technology (A/T). One of the main challenges in this A/C task is to make sure that the added A/C feature in electronic components does not create any additional reliability or failure issue, nor introduce additional risks that will benefit counterfeiters.
{"title":"Qualification and testing process to implement anti-counterfeiting technologies into IC packages","authors":"Nathalie Kae-Nune, Stephanie Pesseguier","doi":"10.7873/DATE.2013.237","DOIUrl":"https://doi.org/10.7873/DATE.2013.237","url":null,"abstract":"Counterfeiting is no longer limited to just fashion or luxury goods, the phenomenon has now reached electronics components which failure represents a high risk to the safety and security of human communities. One way for the semiconductor (SC) industry to fight against counterfeiting of electronic parts is to add technological innovation at the component level itself. The target is to enable the product authentication in a fast and reliable way. Because semiconductor manufacturing is a complex and delicate operation producing highly complex products which are sensitive to many environmental factors, any introduction of changes in its production - which the implementation of anti-counterfeiting (A/C) technologies must also comply to - must undergo thorough testing and qualification steps. This is mandatory to control the compliancy to the strict delivery requirements, quality and reliability level the industry has established, in line with the product performance specifications. This paper aims to explain the comprehensive requirements specification developed by members of semiconductor and related industries in Europe, to add authentication technologies solutions into IC packages. It also describes the qualification processes and testing plans to implement the most adequate and effective anti-counterfeiting technology (A/T). One of the main challenges in this A/C task is to make sure that the added A/C feature in electronic components does not create any additional reliability or failure issue, nor introduce additional risks that will benefit counterfeiters.","PeriodicalId":6310,"journal":{"name":"2013 Design, Automation & Test in Europe Conference & Exhibition (DATE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84165304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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