Congratulations to Dr. Jiang Hu, Ph.D. student Yishuang Lin and former Ph.D. student Yaguang Li!
Their paper “MMM: Machine Learning-Based Macro-Modeling for Linear Analog ICs and ADC/DACs” won the Best Student Paper Award at the 5th ACM/IEEE Workshop on Machine Learning for CAD (MLCAD 2023).
This work introduces macro-model level machine learning techniques to address the problems of huge model construction cost and low model reusability for linear analog ICs and ADC/DACs.
Kudos!
Friday, September 22, 2023
10:20 a.m. – 11:10 a.m. (CST)
ETB 1020, In-Person Presentation Only
Anshumali Shrivastava
Associate Professor at the Department of Computer Science
Rice University
Title: “How We Pre-Trained GPT/LLM Models from Scratch on a CPU-Only Cluster: Democratizing the GenAI Ecosystem with Algorithms and Dynamic Sparsity”
Talking Points:
Abstract
The Neural Scaling Law informally states that an increase in model size and data automatically improves AI. However, we have reached a point where growth has tipped, making the cost and energy associated with AI prohibitive. The barrier to entry into AI is enormous and reserved for only a few with access to expensive GPUs. Unfortunately, there is a severe shortage of GPUs, and it is unlikely to improve in the near future. This talk will demonstrate how algorithms and software can eliminate the need for GPUs altogether, allowing us to build (pre-train, fine-tune, and deploy) some of the most sophisticated software using commodity CPUs that are widely available.
This talk will demonstrate the algorithmic progress that can exponentially reduce the compute and memory cost of pre-training, training, fine-tuning, as well as inference with LLMs. Our experiments with OPT models reveal that more than 99% of floating-point operations associated with large neural networks result in zeros. Unfortunately, modern AI software stacks relying on dense matrix multiplications are forced to spend almost all of their cycles and energy computing these zeros. In this talk, we will show how data structures can fundamentally leverage the inherent “dynamic sparsity” efficiently and effectively. In particular, we will argue how randomized hash tables can be used to design an efficient “associative memory” that reduces the number of multiplications associated with the training of neural networks by several orders of magnitude. The implementation of this algorithm, in the form of ThirdAI’s BOLT software, challenges the common knowledge prevailing in the community that specialized processors like GPUs are required for building GPT. We will demonstrate the world’s first GPT-2.5B, a generative model that was entirely pre-trained on standard CPU clusters and can be fine-tuned on a single commodity desktop. We will also show how we can build a CPU-only Retrieval Augmented Generation (RAG) ecosystem that does not require any vector database management and surpasses the accuracies of some of the most sophisticated foundational models with computations running on laptops and desktops.
Biography
Anshumali Shrivastava is an associate professor in the computer science department at Rice University. He is also the Founder and CEO of ThirdAI Corp, a company that is democratizing AI to commodity hardware through software innovations. His broad research interests include probabilistic algorithms for resource-frugal deep learning. In 2018, Science news named him one of the Top-10 scientists under 40 to watch. He is a recipient of the National Science Foundation CAREER Award, a Young Investigator Award from the Air Force Office of Scientific Research, a machine learning research award from Amazon, and a Data Science Research Award from Adobe. He has won numerous paper awards, including Best Paper Award at NIPS 2014, MLSys 2022, and Most Reproducible Paper Award at SIGMOD 2019. His work on efficient machine learning technologies on CPUs has been covered by popular press including Wall Street Journal, New York Times, TechCrunch, NDTV, etc.
More on Anshumali Shrivastava: https://www.cs.rice.edu/~as143/
More on CESG Seminars: HERE
Please join on Friday, 9/22/23 at 10:20 a.m. in ETB 1020.
Monday, September 25, 2023
10:20 a.m. – 11:10 a.m. (CST)
ETB 1034
Laxmikant (Sanjay) Kale
Director & Research Professor at the Parallel Programming Laboratory
Paul and Cynthia Saylor Professor Emeritus of Computer Science
University of Illinois Urbana-Champaign
Title: “The Migratable Objects Parallel Programming Model: Successes and Prospects”
Talking Points:
Abstract
The Migratable Objects programming model (MOPM) represents an approach to parallel programming where the notion of a processor is virtualized, and represented by an encapsulated object that can be migrated to any physical processor or host at will by an intelligent runtime system. Combined with over-decomposition, it separates concerns about how to partition data and what computations to do in parallel from where the data resides and which processor executes which actions. Thereby, it empowers highly adaptive runtime systems, which supports asynchronous task-based models and uniquely (and most consequentially) dynamic load balancing. It automatically overlaps communication and computation overlap and engenders parallel composition of independent modules efficiency. MOPM also supports automatic power and energy related optimizations as well as fault tolerance.
I will review the basic ideas of the programming model, its baseline implementation in Charm++, and the successes it has notched. The well-known application NAMD, which was used in many highly scaled supercomputer simulations of the coronavirus in recent years, is one such success along with applications in astronomy, fluid dynamics, and other domains. I will illustrate how these application’s successes are based on features of the MOPM.
Charm++ provides a good foundation for development of higher-level languages and frameworks as demonstrated by Adaptive MPI, Charades (discrete event simulation framework), etc.
I will present my assessment of the success and failures of this model over the past two decades, future prospects for it and its software ecosystem, as well as research opportunities.
Biography
Professor Laxmikant Kale is the director of the Parallel Programming Laboratory and Research Professor as well as the Paul and Cynthia Saylor Professor Emeritus of Computer Science at the University of Illinois at Urbana-Champaign.
Prof. Kale has been working on various aspects of parallel computing, with a focus on enhancing performance and productivity via adaptive runtime systems, and with the belief that only interdisciplinary research involving multiple CSE and other applications can bring back well-honed abstractions into Computer Science that will have a long-term impact on the state-of-art.
His collaborations include the widely used Gordon-Bell award winning (SC 2002) biomolecular simulation program NAMD and other collaborations on computational cosmology, quantum chemistry, rocket simulation, space-time meshes, and other unstructured mesh applications.
He takes pride in his group’s success in distributing and supporting software embodying his research ideas, including Charm++, Adaptive MPI and Charm4Py. He and his team won the HPC Challenge award at Supercomputing 2011, for their entry based on Charm++.
Prof. Kale is a fellow of the ACM and IEEE, and a winner of the 2012 IEEE Sidney Fernbach award.
More on Laxmikant Kale: https://charm.cs.illinois.edu/~kale/
More on CESG Seminars: HERE
Please join on Monday, 9/25/23 at 10:20 a.m. in ETB 1034.
Friday, October 6, 2023
10:20 a.m. – 11:10 a.m. (CST)
ETB 1020
Bingzhe Li
Assistant Professor I Dept. of Computer Science
University of Texas at Dallas
Title: “Next-Generation Storage Systems for Big Data”
Talking Points:
Abstract
Tremendous technology developments have been witnessed in the area of computing, network and storage systems. A huge amount of digital data was generated in the past decades with the rapid growth of new technology development such Internet of Things (IoT) devices, edge devices, sensors, 5G, and so forth. Such vast amounts of digital data are being generated and are available for access to all new applications. It becomes a critical and increasing challenge to manage this huge amount of data available at our fingertips and to locate the information that we need at anytime from anywhere.
In this talk, I will focus on emerging storage systems for big data from two perspectives. First, from the capacity perspective, two emerging storage devices/systems with large areal densities (i.e., shingled magnetic recording (SMR) and DNA storage) are introduced including their management and utilization. For SMR, based on its unique properties, we introduce a Machine Learning (ML) based scheme to improve the performance of the SMR storage system. Moreover, for image-based applications, we will introduce how to efficiently store images into DNA storage with higher reliability and capacity. Secondly, from the performance perspective, I will present a high-performance system to accelerate graph neural networks (GNNs). The system is co-designed with the storage systems and algorithms in GNNs and finally can significantly speed up the training process of GNNs.
Biography
Dr. Bingzhe Li is currently an assistant professor of Computer Science at the University of Texas at Dallas. He received his PhD degree in Electrical and Computer Engineering from the University of Minnesota, Twin Cities in 2018 after which he worked as a postdoctoral associate in the Department of Computer Science and Engineering, University of Minnesota, Twin Cities.
His research interests focus on memory and storage systems, computer architecture, and low-cost computing architecture. He has served on conference organization committees as well as technical program committees and as reviewer for several major conferences and journals in computer system, storage, and computing architecture. In recognition of his research, he received the Best Paper Nomination at the ICCD’21 and the featured paper of the Month at IEEE Transactions of Computers on March 2021.
More on Bingzhe Li: Bingzhe Li (tamu.edu)
More on CESG Seminars: HERE
Please join on Friday, 10/6/23 at 10:20 a.m. in ETB 1020.
Welcome to our incoming CEEN students and our returning graduate students!
It is lining up to be an exciting Fall semester with great classes, CESG Seminars, ECE seminars (postings to come), and campus activities!
I hope you enjoyed the Howdy Week events through Aug. 22.
International Students: Check out this event for you Friday, Aug. 25 – https://global.tamu.edu/gwp!!
And upcoming career fairs may be of interest to some of you!
Have a great fall y’all & Gig ’em!
Congratulations Dr. Khatri on your 2022 Engineering Faculty Award! Well done!
Congratulations Dr. Reddy on your Engineering Honoree Award!
✿ We are pleased to announce the following 54 MS and 3 PhD students graduating from ECE’s Computer Engineering Systems Group on Saturday, May 13! We are grateful they were part of our program, and we hope they are leaving with strong skills and confidence as they pursue their careers and go out to make the world a better, safer, and happier place! They will be putting to use their skills in cyber security, virtual reality, robotics, VLSI, data science, networking, architecture & systems, and much more! They should be very valuable to their employers for decades to come!
Most started our program in December 2021. Some came after deferring the year before due to the pandemic. And, getting to know each other was a bit more challenging as we slowly returned to in-person events, classes and gatherings. Nevertheless, we hope they will have fond memories of their time in Aggieland and will hold these experiences in their hearts. ♥
If you have a chance, please wish the following a well-deserved “Congratulations” !
Doctorate Degrees
Dr. Gino Chacon (advisor: Paul Gratz)
Dr. Kaan Sel (advisor: Roozbeh Jafari)
Dr. Jinhyun So (advisor: Mi Lu)
Master of Science Degrees
Meghana Jaysing Amup
Shabarish Babu Badavanahally
Dharmendra Baruah
Aroma Bhat (^◡^ )
Tejasri Swaroop Boppana
Xiaohai Chen
Sai Namith Garapati
Meghna Manoj Ghole
Amith Gopi ★
Sudharsan Govardan
Hao Guo (ˆ▿ˆc)
Harshit Gupta
Divya Shrikant Hegde
Abby Pallathattayil Joby
Anirudh Kashyap
Pushp Khatter
Sri Hari Pada Chandanam Kodi
Aditya Dilip Kothar ✯
Natarajan Krishnamoorthy
Rajesh Sai Kudipudi
Velmurugan Mohan Krishnapuram
Jyothi Swaroopa Myneedi
Saurabh Nalkunda Kyathaplar
Shobith Narayanan
Punarvi Pallamreddy
Abhijay Kumar Pandit
Balaji Aathithan Paranthaman
Sanjana Patri (っ＾▿＾)💨
Swarna Srikanth Prabhu
Ajin Thankachan Pullan
Shanmuga Srinivas Puthalapattu
Kezhuo Qi
Gokul Raghunathan
Nitin Kasshyap Ragothaman
Amritha Rajagopalan
Mridhula Ramesh
Rajendra Prasad Sahu ٩(˘◡˘)۶
Kavya Santha Kumar
Allen Sebastian
Vaibhavi Shanbhag
Bhavesh Hariom Sharma
Prachi Sharma
Digvijay Singh
Shashi Preetham Sreebhashyam
Vamsi Tallam (̶◉͛‿◉̶)
Kaushal Prudhvi Raj Tungaturthy
Mohammadi Turabbhai
Suryateja Vadlamani
Sreemayee Venigalla
Chun Sheng Wu
Gayathri Narayana Yegna Narayanan💨
Siri Chandana Yeshala
Chongzhi Zhao (❛‿❛ )
Zanbo Zhu
Please celebrate yourselves too graduates! You have done a lot over the last few years and deserve to feel pride in all you overcame, endured, discovered and produced! 👍
Best wishes from all of us in CESG!
CESG’s Jiang Hu has a new publication: Machine Learning Applications in Electronic Design Automation by himself and Dr. Haoxing Ren.
This book covers a wide range of the latest research on ML applications in electronic design automation (EDA), including analysis and optimization of digital design, analysis and optimization of analog design, as well as functional verification, FPGA and system level designs, design for manufacturing, and design space exploration. The ML techniques covered in this book include classical ML, deep learning models such as convolutional neural networks, graph neural networks, generative adversarial networks and optimization methods such as reinforcement learning and Bayesian optimization.
More information at https://www.barnesandnoble.com/w/machine-learning-applications-in-electronic-design-automation-haoxing-ren/1141727406?ean=9783031130748
Dr. Kumar is the 2022 recipient of one of the Institute of Electrical and Electronics Engineers’ (IEEE) most prestigious honors — the IEEE Alexander Graham Bell Medal. It is the highest award by IEEE in communications and networking. Kumar was recognized for his seminal contributions to the modeling, analysis and design of wireless networks.
For more, go to https://engineering.tamu.edu/news/2021/12/kumar-awarded-institute-of-electrical-and-electronics-engineers-medal.html.
Congratulations Dr. Kumar!
Dr. JV Rajendran has won the 2022 Young Investigator Award from the Office of Naval Research Science & Technology!
His research work is titled Steel Wool: Next-Generation Hardware Fuzzers and addresses the area of Cyber Security and Complex Software Systems.
Congratulations JV!
Congratulations to former CESG Post-Doc Dr. Muhammad Yasin and Dr. JV Rajendran! Their 2020 paper “Removal Attacks on Logic Locking and Camouflaging Techniques” won a Best Paper Award from the Computer Society Publications Board and IEEE Transactions on Emerging Topics in Computing.
Dr. Karan Watson, Regents Professor, was awarded the 2021 American Society for Engineering Education (ASEE) Lifetime Achievement Award in Engineering Education. Dr. Watson was recognized for her pioneering leadership and sustained contributions to education in the fields of engineering and engineering technology.
For the full article or a more in-depth look at her work, please visit: Texas A&M Engineering News and Dr. Watson’s Google Scholar Profile
Past Recipients
2012 Richard M. Felder
2014 James E. Stice
2015 Karl A. Smith
2016 Russ Pimmel
2018 James L. Melsa
2019 K.L. DeVries
2020 Don P. Giddens
2021 Karan L. Watson
CESG former student, Shiyan Hu, who received his Ph.D. in Computer Engineering in 2008, has been elected as a Member for European Academy of Sciences and Arts for his significant contributions to Design, Optimization, and Security of Cyber-Physical Systems.
European Academy of Sciences and Arts currently has about 2,000 members, including 34 Nobel Prize Laureates, who are world leading scientists, artists, and practitioners of governance, with expertise ranging from Natural Sciences, Medicine, Technical & Environmental Sciences, Humanities, to Social Sciences. Academy members, who are dedicated to innovative research, international collaboration as well as the exchange and dissemination of knowledge, are elected based on their outstanding achievements.
Shiyan Hu is a professor and the Chair in Cyber-Physical System Security and Director of Cyber Security Academy at University of Southampton. He has published more than 150 refereed papers in the area of Cyber-Physical Systems, Cyber-Physical System Security, and VLSI Computer Aided Design, where most of his journal articles appeared in IEEE/ACM Transactions. He is an ACM Distinguished Speaker, an IEEE Systems Council Distinguished Lecturer, a recipient of the 2017 IEEE Computer Society TCSC Middle Career Researcher Award, and a recipient of the 2014 U.S. National Science Foundation CAREER Award. His publications have received distinctions such as the 2018 IEEE Systems Journal Best Paper Award, the 2017 Keynote Paper in IEEE Transactions on Computer-Aided Design, the Front Cover Paper in IEEE Transactions on Nanobioscience in March 2014, multiple Thomson Reuters ESI Highly Cited Papers/Hot Papers, etc. His ultra-fast slew buffering technique has been widely deployed in the industry for designing over 50 microprocessor and ASIC chips such as IBM flagship chips POWER 7 and 8.
He is a well-recognized international leader in his field. He is chairing the IEEE Technical Committee on Cyber-Physical Systems, leading IET Cyber-Physical Systems: Theory & Applications, and chaired the 2020 Editor-in-Chief Search Committee Chair for ACM TODAES. He has served as an Associate Edito
r for 5 IEEE/ACM Transactions such as IEEE TCAD, IEEE TII and ACM TCPS and as a Guest Editor for various IEEE/ACM journals such as Proceedings of the IEEE and IEEE Transactions on Computers. He is an Elected Member of the European Academy of Sciences and Arts, a Fellow of IET, and a Fellow of British Computer Society.
Shiyan Hu says: “I am delighted to be elected as a Member of European Academy of Sciences and Arts. It is a unique honor in recognition of my research accomplishments and international leadership in my research fields. After many years following my graduation, I still feel very grateful to the education I received from Texas A&M’s Computer Engineering Group and research experience with my Ph.D. advisor Professor Jiang Hu. These were pivotally helpful for me to contribute significantly to my fields.”
l
Congratulations to Dr. Jiang Hu and team for receiving the Agricultural Blue Legacy Award this March.
They developed a center pivot automation and control system known as CPACS. This contributes to water conservation in the field of agriculture. To learn more, go to http://www.hpwd.org/newswire/2021/3/18/amarillo-water-management-team-honored.
The team is referred to as the “Amarillo Water Management Team” and includes:
Dr. Hongxin Kong, CEEN, PhD Graduate
Jianfeng Song, CEEN, PhD Candidate
Dr. Justin Sun, CEEN, PhD Graduate
Dr. Yanxiang Yang, CEEN, PhD Graduate
Dr. Jiang Hu, co-director of graduate programs in the Texas A&M Department of Electrical and omputer Engineering at College Station;
Dr. Gary Marek, U.S. Department of Agriculture-Agricultural Research Service agricultural engineer at Bushland;
Thomas Marek, AgriLife Research senior research engineer at Amarillo;
Dr. Dana Porter, Texas A&M AgriLife Extension Service program leader in the Department of Biological and Agricultural Engineering at Lubbock; and
Dr. Qingwu Xue, AgriLife Research crop stress physiologist at Amarillo.
Thank you Amarillo Water Management Team for improving our world with your projects!
Pic 1: Dr. Hongxin Kong
Pic 2: Dr. Jiang Hu & Dr. Yanxiang Yang
Pic 3: Dr. Hongxin Kong
Feature Pic: Yanxiang Yang, Thomas Marek & Justin Sun
Friday, April 28, 2023
3:50 – 4:50 p.m. (CST)
ETB 1020 or Zoom (see syllabus or email list for link)
Vasudev Gohil
CE PhD Student
Dept. of Electrical and Computer Engineering; Computer Engineering
Texas A&M University
Title: “Reinforcement Learning for Hardware Security ”
Talking Points
Abstract
Reinforcement learning (RL) has shown great promise in solving problems in novel domains, e.g., marketing, chip placement, and matrix multiplication. In this talk, I will discuss another area that has just begun to reap the powers of RL: hardware security. In particular, I will discuss two of our recent works that use RL to address the threat of hardware Trojans (HTs) in integrated circuits. HTs are malicious logic added by adversaries to harm integrated circuits. They pose a significant threat to critical infrastructures and have been the focus of much research.
In the first part of the talk, I will present a reinforcement learning (RL) agent that returns a minimal set of patterns most likely to detect HTs. Our experimental results demonstrate the efficacy and scalability of our RL agent, which significantly reduces the number of test patterns while maintaining or improving coverage compared to state-of-the-art techniques. In the second part of the talk, I will discuss how we play the role of a realistic adversary and question the efficacy of existing HT detection techniques by developing an automated, scalable, and practical attack framework. Our framework uses RL to evade eight detection techniques across two HT detection categories, demonstrating its agnostic behavior.
Using the example of HTs, our work highlights the potential of RL in solving hardware security problems. The talk will conclude with a discussion of future directions for research in this area.
Biography
Vasudev Gohil is pursuing a Ph.D. in Computer Engineering at Texas A&M University in College Station, Texas. His research interests lie at the intersection of machine learning and hardware security. He is keenly interested in examining and developing IP protection techniques and applying reinforcement learning techniques for security. Before his doctoral studies, Vasudev received a Bachelor of Technology degree in Electrical Engineering with minors in Computer Science from the Indian Institute of Technology Gandhinagar.
More on Vasudev Gohil: https://gohilvasudev.wixsite.com/website
More on CESG Seminars: HERE
Please join on Friday, 4/28/22 at 3:50 p.m. in ETB 1020 or via Zoom.
Zoom option: Links and PW in syllabus or found in email announcement.
Friday, January 25, 2021
4:10 – 5:00 p.m.
via Zoom (link below)
Dr. Bo Yuan
Asst. Professor, Dept. of Electrical & Computer Engineering, Rutgers University
Title: “Algorithm and Hardware Co-Design for Efficient Deep Learning: Sparse and Low-rank Perspective”
Talking Points
Abstract
In the emerging artificial intelligence era, deep neural networks (DNNs), a.k.a. deep learning, have gained unprecedented success in various applications. However, DNNs are usually storage intensive, computation intensive and very energy consuming, thereby posing severe challenges on the future wide deployment in many application scenarios, especially for the resource-constraint low-power IoT application and embedded systems. In this talk, I will introduce the algorithm/hardware co-design works for energy-efficient DNN in my group, from both the sparse and low-rank perspectives. First, I will show the benefit of using structured and unstructured sparsity of DNN for designing low-latency and low-power DNN hardware accelerators. In the second part of my talk, I will present an algorithm/hardware co-design framework that leverages low tensor rankness towards energy-efficient high-accuracy DNN model and accelerators.
Biography
Dr. Bo Yuan is currently the assistant professor in the Department of Electrical and Computer Engineering in Rutgers University. Before that, he was with City University of New York from 2015-2018. Dr. Bo Yuan received his bachelor and master degrees from Nanjing University, China in 2007 and 2010, respectively. He received his PhD degree from University of Minnesota, Twin Cities in 2015. His research interests include algorithm and hardware co-design and implementation for machine learning and signal processing systems, error-resilient low-cost computing techniques for embedded and IoT systems and machine learning for domain-specific applications. He is the recipient of Global Research Competition Finalist Award in Broadcom Corporation. Dr. Yuan serves as technical committee track chair and technical committee member for several IEEE/ACM conferences. He is the associated editor of Springer Journal of Signal Processing System
Zoom Link: https://tamu.zoom.us/j/96343481647; Zoom ID: 963 4348 1647
Friday, January 21, 2021
4:10 – 5:00 p.m.
ETB 1020 – **In-person**
Dr. Craig Robinson
Tech Lead and Manager for Positioning at Waymo
Title: “Waymo Self Driving: An Overview”
Talking Points
Abstract
We will first give an overview of Waymo, the “Waymo Driver” and the vision for Self-Driving systems we have under development. We will then take a closer look at the current generation vehicle from a technical standpoint and delve into the sensor systems and modalities onboard (radar, laser, camera, IMU’s and microphones(!)). That will lead to a discussion of higher level system architecture (hardware and software) and the safety framework that underpins the system. Finally we will wrap up with some observations from the field regarding differences between research, development and deployment of complex systems like self-driving vehicles.
Biography
Dr. Robinson is a Tech Lead and manager for Positioning at Waymo and is broadly responsible for delivering positioning architecture, software and hardware systems. He joined the self-driving company in 2014 with expertise in inertial navigation, sensor fusion, safety and system design. Prior to Waymo, Dr Robinson worked on pose estimation for Google Street View, server fleet intelligence in Google’s data centers, and early DSRC safety systems at Mercedes-Benz R&D. Dr Robinson completed his MSc & Phd At University of Illinois in the area of Networked Control systems and was a Fulbright Scholar in 2001. He holds 10 patents in the area of Self Driving, a swimming Guinness world record and a hobby of flying human powered planes.
Friday, March 25, 2022
4:10 – 5:00 p.m.
ETB 1020 – *In-person* (Emerging Technologies Building)
Dr. Mayank Parasar
Samsung Austin R&D Center (SARC) in Austin, TX
Title: “Subactive Techniques for Guaranteeing Routing and Protocol Deadlock Freedom in Interconnection”
Talking Points:
Abstract
Interconnection networks are the communication backbone for any system. They occur at various scales: from on-chip networks, for example 2.5D/chiplet networks, between processing cores, to supercomputers between compute nodes, to data centers between high-end servers. One of the most fundamental challenges in an interconnection network is that of deadlocks. Deadlocks can be of two types: routing level deadlocks and protocol level deadlocks. Routing level deadlocks occur because of cyclic dependency between packets trying to acquire buffers, whereas protocol level deadlock occurs because the response message is stuck indefinitely behind the queue of request messages. Both kinds of deadlock render the forward movement of packets impossible leading to complete system failure.
Prior work either restricts the path that packets take in the network or provisions an extra set of buffers to resolve routing level deadlocks. For protocol level deadlocks, separate sets of buffers are reserved at every router for each message class. Naturally, proposed solutions either restrict the packet movement resulting in lower performance or require higher area and power.
We propose a new set of efficient techniques for providing both routing and protocol level deadlock freedom. Our techniques provide periodic forced movement to the packets in the network, which breaks any cyclic dependency of packets. Breaking this cyclic dependency results in resolving routing level deadlocks. Moreover, because of periodic forced movement, the response message is never stuck indefinitely behind the queue of request messages; therefore, our techniques also resolve protocol level deadlocks. We use the term ‘subactive’ for these new class of techniques.
Biography:
Dr. Mayank parasar works at Samsung Austin R&D Center (SARC) in Austin, TX. Mayank Parasar has received his Ph.D. from the School of Electrical and Computer Engineering at Georgia Institute of Technology. He received an M.S. in Electrical and Computer Engineering from Georgia Tech in 2017 and a B.Tech. in Electrical Engineering department from Indian Institute of Technology (IIT) Kharagpur in 2013.
He works in computer architecture with the research focus on proposing breakthrough solutions in the field of interconnection networks, memory system and system software/application layer co-design. His dissertation, titled Subactive Techniques for Guaranteeing Routing and Protocol Deadlock Freedom in Interconnection Networks, formulates techniques that guarantee deadlock freedom with a significant reduction in both area and power budget.
He held the position of AMD Student Ambassador at Georgia Tech in the year 2018-19. He received the Otto & Jenny Krauss Fellow award in the year 2015-16.
In-Person @ ETB 1020 @ 4:10 p.m. on Friday, 3/11/22
