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Rakesh Kumar

Rakesh Kumar

Associate Professor
Department of Computer Science
Faculty of Information Technology and Electrical Engineering

rakesh.kumar@ntnu.no
IT-bygget, 405, Gløshaugen, Sem Sælands vei 9, 7034 Trondheim
Personal webpage Google Scholar
About Publications Media

About

CV

Rakesh Kumar is an Associate Professor in the Department of Computer Science at Norwegian University of Science and Technology (NTNU). He is affiliated with Computer Architecture Lab (CAL) in the Computing Unit. Before joining NTNU, he was a post-doctoral researcher at Uppsala University, Sweden and the University of Edinburgh, UK. He received his PhD from UPC, Barcelona in 2014.

Research

His current research focuses on improving the efficiency of large-scale datacenters through improvement in processor microarchitecture and memory systems. His previous work explored hardware/software co-designed processors (think of Nvidia Denver) as an energy-efficient alternative to conventional (hardware only) processors. He has also investigated dynamic code translation and optimizations, especially vectorization.

Teaching

  • TDT4258 Low Level Programming, Autumn 2023, 2021, 2020, 2019, 2018
  • TDT01 Architecture of Computing Systems, Autumn 2023, 2021, 2020, 2019, 2018
  • TFE4208 Embedded Systems Design Project, Spring 2022, 2021, 2020, 2019

Competencies

  • Computer architecture

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2022

  • Kumar, Rakesh; Alipour, Mehdi; Black-Schaffer, David. (2022) Freeway to Memory Level Parallelism in Slice-Out-of-Order Cores. arXiv.org
    Academic article
  • Ugedal, Odin; Kumar, Rakesh. (2022) Mitigating Unnecessary Throttling in Linux CFS Bandwidth Control. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Asheim, Truls; Grot, Boris; Kumar, Rakesh. (2022) A Specialized BTB Organization for Servers. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper
  • Asheim, Truls; Ahmed Khan, Tanvir; Kasikci, Baris; Kumar, Rakesh. (2022) Impact of Microarchitectural State Reuse on Serverless Functions. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper
  • Kumar, Rakesh; Alipour, Mehdi; Black-Schaffer, David. (2022) Dependence-aware Slice Execution to Boost MLP in Slice-out-of-order Cores. ACM Transactions on Architecture and Code Optimization (TACO)
    Academic article
  • Kumar, Rakesh; Grot, Boris. (2022) Shooting Down the Server Front-End Bottleneck. ACM Transactions on Computer Systems
    Academic article

2021

  • Asheim, Truls; Grot, Boris; Kumar, Rakesh. (2021) BTB-X: A Storage-Effective BTB Organization. IEEE computer architecture letters
    Academic article
  • Kumar, Rakesh; Martínez, Alejandro; Gonzalez, Antonio. (2021) A Variable Vector Length SIMD Architecture for HW/SW Co-designed Processors. arXiv.org
    Academic article
  • Ahmed Khan, Tanvir; Brown, Nathan; Sriraman, Akshitha; Soundararajan, Niranjan; Kumar, Rakesh; Devietti, Joseph. (2021) Twig: Profile-Guided BTB Prefetching for Data Center Applications. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper
  • Kumar, Rakesh; Ugedal, Odin. (2021) Bandwidth Control And Fairness In The Linux Scheduler. NTNU
    Masters thesis

2020

  • Asheim, Truls; Kumar, Rakesh; Grot, Boris. (2020) Fetch-Directed Instruction Prefetching Revisited. arXiv.org
    Academic article
  • Alipour, Mehdi; Kumar, Rakesh; Kaxiras, Stefanos; Black-Schaffer, David. (2020) Delay and Bypass: Ready and Criticality Aware Instruction Scheduling in Out-of-Order Processors. IEEE Symposium on High-Performance Computer Architecture (HPCA)
    Academic article
  • Strupe, Fredrik; Kumar, Rakesh. (2020) Probing the Armv8-A ISA for Hidden Instructions through Processor Fuzzing. NTNU
    Masters thesis
  • Caccialino, Marco; Kumar, Rakesh. (2020) Eliminating Unnecessary Broadcasts to Simplify Out-of-Order Instruction Scheduling. NTNU
    Masters thesis

2019

  • Kumar, Rakesh; Alipour, Mehdi; Black-Schaffer, David. (2019) Freeway: Maximizing MLP for Slice-Out-of-Order Execution. IEEE Symposium on High-Performance Computer Architecture (HPCA)
    Academic article
  • Alipour, Mehdi; Kumar, Rakesh; Kaxiras, Stefanos; Black-Schaffer, David. (2019) FIFOrder MicroArchitecture: Ready-Aware Instruction Scheduling for OoO Processors. Design, Automation and Test in Europe (DATE)
    Academic article

Journal publications

  • Kumar, Rakesh; Alipour, Mehdi; Black-Schaffer, David. (2022) Freeway to Memory Level Parallelism in Slice-Out-of-Order Cores. arXiv.org
    Academic article
  • Kumar, Rakesh; Alipour, Mehdi; Black-Schaffer, David. (2022) Dependence-aware Slice Execution to Boost MLP in Slice-out-of-order Cores. ACM Transactions on Architecture and Code Optimization (TACO)
    Academic article
  • Kumar, Rakesh; Grot, Boris. (2022) Shooting Down the Server Front-End Bottleneck. ACM Transactions on Computer Systems
    Academic article
  • Asheim, Truls; Grot, Boris; Kumar, Rakesh. (2021) BTB-X: A Storage-Effective BTB Organization. IEEE computer architecture letters
    Academic article
  • Kumar, Rakesh; Martínez, Alejandro; Gonzalez, Antonio. (2021) A Variable Vector Length SIMD Architecture for HW/SW Co-designed Processors. arXiv.org
    Academic article
  • Asheim, Truls; Kumar, Rakesh; Grot, Boris. (2020) Fetch-Directed Instruction Prefetching Revisited. arXiv.org
    Academic article
  • Alipour, Mehdi; Kumar, Rakesh; Kaxiras, Stefanos; Black-Schaffer, David. (2020) Delay and Bypass: Ready and Criticality Aware Instruction Scheduling in Out-of-Order Processors. IEEE Symposium on High-Performance Computer Architecture (HPCA)
    Academic article
  • Kumar, Rakesh; Alipour, Mehdi; Black-Schaffer, David. (2019) Freeway: Maximizing MLP for Slice-Out-of-Order Execution. IEEE Symposium on High-Performance Computer Architecture (HPCA)
    Academic article
  • Alipour, Mehdi; Kumar, Rakesh; Kaxiras, Stefanos; Black-Schaffer, David. (2019) FIFOrder MicroArchitecture: Ready-Aware Instruction Scheduling for OoO Processors. Design, Automation and Test in Europe (DATE)
    Academic article

Part of book/report

  • Ugedal, Odin; Kumar, Rakesh. (2022) Mitigating Unnecessary Throttling in Linux CFS Bandwidth Control. IEEE conference proceedings
    Academic chapter/article/Conference paper
  • Asheim, Truls; Grot, Boris; Kumar, Rakesh. (2022) A Specialized BTB Organization for Servers. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper
  • Asheim, Truls; Ahmed Khan, Tanvir; Kasikci, Baris; Kumar, Rakesh. (2022) Impact of Microarchitectural State Reuse on Serverless Functions. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper
  • Ahmed Khan, Tanvir; Brown, Nathan; Sriraman, Akshitha; Soundararajan, Niranjan; Kumar, Rakesh; Devietti, Joseph. (2021) Twig: Profile-Guided BTB Prefetching for Data Center Applications. Association for Computing Machinery (ACM)
    Academic chapter/article/Conference paper

Report

  • Kumar, Rakesh; Ugedal, Odin. (2021) Bandwidth Control And Fairness In The Linux Scheduler. NTNU
    Masters thesis
  • Strupe, Fredrik; Kumar, Rakesh. (2020) Probing the Armv8-A ISA for Hidden Instructions through Processor Fuzzing. NTNU
    Masters thesis
  • Caccialino, Marco; Kumar, Rakesh. (2020) Eliminating Unnecessary Broadcasts to Simplify Out-of-Order Instruction Scheduling. NTNU
    Masters thesis

Media

2020

  • Academic lecture
    Strupe, Fredrik; Kumar, Rakesh. (2020) Uncovering Hidden Instructions in Armv8-A Implementations. 9th International Workshop on Hardware and Architectural Support for Security and Privacy (HASP) 2020-10-17 - 2020-10-17

2018

  • Poster
    Alipour, Mehdi; Kumar, Rakesh; Kaxiras, Stefanos; Black-Schaffer, David. (2018) A Minimum Out-of-Order Core. IEEE/ACM Student Research Competition at International Symposium on Microarchitecture (MICRO) 2018-10-20 - 2018-10-24
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