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Hans Magnus Själander

Hans Magnus Själander

Professor in Computer Architecture
Institutt for datateknologi og informatikk

magnus.sjalander@ntnu.no
IT-bygget, 406, Gløshaugen
Twitter ResearchGate Google Scholar
Om Forskning Publikasjoner

Om

Magnus Själander er professor ved Institutt for Datateknologi og Informatikk och gästlektor ved Institutt for Informationsteknologi ved Uppsala Universitet. Han er utdannet sivilingeniør fra Luleå Universitet, og har en doktorgrad fra Chalmers Tekniska Högskola.

Se engelsk side for mer informasjon.

Kompetanseord

  • Datamaskinarkitektur
  • Datamaskinkonstruksjon
  • Datateknikk
  • Energieffektivitet
  • Innebygd system
  • Minnesystemer
  • VLSI-integrert kretsteknikk

Forskning

  • Computer Architecture Laboratory (CAL) at NTNU
  • Computing group at NTNU
  • Energy Efficient Computing Systems (EECS) at NTNU
  • Uppsala Architecture Research Team (UART) at Uppsala University
  • ComputComputational Magnetic Metamaterials (COMET) at NTNU

BISMO: A Scalable Bit-Serial Matrix Multiplication Overlay for Reconfigurable Computing

BISMO is a programmable FPGA accelerator for low-precision integer matrix multiplication. It offers high-performance matrix multiplication, which is beneficial for applications like quantized neural network inference and approximate computing approaches.

SOCRATES: Self-Organizing Computational substRATES

SOCRATES (Self-Organizing Computational substRATES) is a long-term time horizon project seeking radical breakthroughs toward efficient and powerful data analysis available everywhere, from the simplest sensor node to the most complex supercomputer.

SpinENGINE: Harnessing the Emergent Properties of Nanomagnet Ensembles for Massively Parallel Data Analysis

The SpinENGINE project will lay the foundations for a new, massively parallel, platform based on emergent behavior in nanomagnet ensembles.

BOWI: Boosting Widening Digital Innovation Hubs

BOWI project – connecting digital innovation hubs and SMEs in the discovery of advanced digital solutions.

Power Management for LTE base stations

The LTE Uplink Receiver PHY benchmark is a realistic implementation of the baseband processing for an LTE mobile base station. The benchmark implements the processing required by the base station in an uplink.

Twin-Precision Multipliers

This multiplier generator is capable of generating several kinds of multipliers that all have been based on the regular reduction tree of the High Performance Multiplier.

FlexSoC

The FlexSoC program, launched during 2003, aims to develop new architectural techniques for the complex processors necessary for high-performance embedded systems.

JLM: A research compiler based on the RVSDG IR

Jlm is an experimental compiler/optimizer that consumes and produces LLVM IR. It uses the Regionalized Value State Dependence Graph (RVSDG) as intermediate representation for optimizations.

SPrINTER

The SPrINTER project will create the foundation of a radically new technology for batteryless intermittent computing devices required for a sustainable digital society.

PERSEUS

PERSEUS aims to educate top-level researchers contributing to solve societal challenges within the areas of energy, healthcare, manufacturing, mobility, and ocean-based technology, through the use of digital technologies.

Publikasjoner

  • Kronologisk
  • Etter kategori
  • Se alle publikasjoner i Cristin

2023

  • Saha, Sangeet; Chakraborty, Shounak; Agarwal, Sukarn; Gangopadhyay, Rahul; Själander, Magnus; McDonald-Maier, Klaus. (2023) DELICIOUS: Deadline-Aware Approximate Computing in Cache-Conscious Multicore. IEEE Transactions on Parallel and Distributed Systems
    Vitenskapelig artikkel
  • Kvalsvik, Amund Bergland; Aimoniotis, Pavlos; Kaxiras, Stefanos; Själander, Hans Magnus. (2023) Doppelganger Loads: A Safe, Complexity-Effective Optimization for Secure Speculation Schemes. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Metz, David Christoph; Kumar, Vineet; Själander, Hans Magnus. (2023) BISDU: A Bit-Serial Dot-Product Unit for Microcontrollers. ACM Transactions on Embedded Computing Systems
    Vitenskapelig artikkel

2022

  • Jensen, Johannes Høydahl; Strømberg, Anders; Lykkebø, Odd Rune Strømmen; Penty, Arthur George; Lealiaert, Jonathan; Själander, Magnus. (2022) Flatspin: A large-scale artificial spin ice simulator. Physical review B (PRB)
    Vitenskapelig artikkel
  • Sakalis, Christos; Kaxiras, Stefanos; Själander, Hans Magnus. (2022) Delay-on-Squash: Stopping Microarchitectural Replay Attacks in Their Tracks. ACM Transactions on Architecture and Code Optimization (TACO)
    Vitenskapelig artikkel

2021

  • Chakraborty, Shounak; Själander, Magnus. (2021) WaFFLe: Gated Cache-Ways with Per-Core Fine-Grained DVFS for Reduced On-Chip Temperature and Leakage Consumption. ACM Transactions on Architecture and Code Optimization (TACO)
    Vitenskapelig artikkel
  • Aimoniotis, Pavlos; Sakalis, Christos; Själander, Magnus; Kaxiras, Stefanos. (2021) Reorder Buffer Contention: A Forward Speculative Interference Attack for Speculation Invariant Instructions. IEEE computer architecture letters
    Vitenskapelig artikkel
  • Aimoniotis, Pavlos; Sakalis, Christos; Själander, Magnus; Kaxiras, Stefanos. (2021) WIP: “It’s a Trap!”—How Speculation Invariance Can Be Abused with Forward Speculative Interference. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sakalis, Christos; Själander, Magnus; Kaxiras, Stefanos. (2021) Seeds of SEED: Preventing Priority Inversion in Instruction Scheduling to Disrupt Speculative Interference. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sakalis, Christos; Chowdhury, Zamshed; Wadle, Shayne; Akturk, Ismail; Ros, Alberto; Själander, Magnus. (2021) Do Not Predict – Recompute! How Value Recomputation Can Truly Boost the Performance of Invisible Speculation. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Själander, Magnus. (2021) International Symposium on Secure and Private Execution Environment Design (SEED). IEEE (Institute of Electrical and Electronics Engineers) IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig antologi/Konferanseserie
  • Chakraborty, Shounak; Saha, Sangeet; Själander, Magnus; McDonald-Maier, Klaus. (2021) Prepare: Power-Aware Approximate Real-time Task Scheduling for Energy-Adaptive QoS Maximization. ACM Transactions on Embedded Computing Systems
    Vitenskapelig artikkel

2020

  • Jensen, Johannes Høydahl; Strømberg, Anders; Lykkebø, Odd Rune Strømmen; Penty, Arthur George; Själander, Magnus; Folven, Erik. (2020) flatspin: A Large-Scale Artificial Spin Ice Simulator. arXiv.org
    Vitenskapelig artikkel
  • Tran, Kim-Anh; Sakalis, Christos; Själander, Magnus; Ros, Alberto; Kaxiras, Stefanos; Jimborean, Alexandra. (2020) Clearing the Shadows: Recovering Lost Performance for Invisible Speculative Execution through HW/SW Co-Design. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Reissmann, Nico; Meyer, Jan Christian; Bahmann, Helge; Själander, Magnus. (2020) RVSDG: An intermediate representation for optimizing compilers. ACM Transactions on Embedded Computing Systems
    Vitenskapelig artikkel
  • Nishtala, Rajiv; Petrucci, Vinicius; Carpenter, Paul; Själander, Magnus. (2020) Twig: Multi-Agent Task Management for Colocated Latency-Critical Cloud Services. IEEE Symposium on High-Performance Computer Architecture (HPCA)
    Vitenskapelig artikkel
  • Sakalis, Christos; Kaxiras, Stefanos; Ros, Alberto; Jimborean, Alexandra; Själander, Magnus. (2020) Understanding Selective Delay as a Method for Efficient Secure Speculative Execution. IEEE transactions on computers
    Vitenskapelig artikkel

2019

  • Umuroglu, Yaman; Conficconi, Davide; Sasnayake Mudiyanselage, Lahiru Kasun Rasnayake; Preusser, Thomas B.; Själander, Magnus. (2019) Optimizing bit-serial matrix multiplication for reconfigurable computing. ACM Transactions on Reconfigurable Technology and Systems
    Vitenskapelig artikkel
  • Sakalis, Christos; Alipour, Mehdi; Ros, Alberto; Jimborean, Alexandra; Kaxiras, Stefanos; Själander, Magnus. (2019) Ghost loads: what is the cost of invisible speculation?. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sakalis, Christos; Jimborean, Alexandra; Kaxiras, Stefanos; Själander, Magnus. (2019) Evaluating the Potential Applications of Quaternary Logic for Approximate Computing. ACM Journal on Emerging Technologies in Computing Systems (JETC)
    Vitenskapelig artikkel
  • Sasnayake Mudiyanselage, Lahiru Kasun Rasnayake; Själander, Magnus. (2019) Improving Memory Access Locality for Vectorized Bit-Serial Matrix Multiplication in Reconfigurable Computing. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sakalis, Christos; Kaxiras, Stefanos; Ros, Alberto; Jimborean, Alexandra; Själander, Magnus. (2019) Efficient invisible speculative execution through selective delay and value prediction. Computer Architecture
    Vitenskapelig artikkel

2018

  • Tran, Kim-anh; Jimborean, Alexandra; Carlson, Trevor E.; Koukos, Konstantinos; Själander, Magnus; Kaxiras, Stefanos. (2018) SWOOP: Software-Hardware Co-design for Non-speculative, Execute-Ahead, In-Order Cores. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Umuroglu, Yaman; Sasnayake Mudiyanselage, Lahiru Kasun Rasnayake; Själander, Magnus. (2018) BISMO: A Scalable Bit-Serial Matrix Multiplication Overlay for Reconfigurable Computing. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2017

  • Tran, Kim-anh; Carlson, Trevor E.; Koukos, Konstantinos; Själander, Magnus; Spiliopoulos, Vasileios; Kaxiras, Stefanos. (2017) Static Instruction Scheduling for High Performance on Limited Hardware. IEEE transactions on computers
    Vitenskapelig artikkel
  • Carlson, Trevor E.; Tran, Kim-anh; Jimborean, Alexandra; Koukos, Konstantinos; Själander, Magnus; Kaxiras, Stefanos. (2017) Transcending Hardware Limits with Software Out-of-order Processing. IEEE computer architecture letters
    Vitenskapelig artikkel
  • Tran, Kim-Anh; Carlson, Trevor E.; Koukos, Konstantinos; Själander, Magnus; Spiliopoulos, Vasileios; Kaxiras, Stefanos. (2017) Clairvoyance: Look-ahead compile-time scheduling. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2016

  • Själander, Magnus; Borgström, Gustaf; Klymenko, Mykhailo V; Remacle, Françoise; Kaxiras, Stefanos. (2016) Techniques for Modulating Error Resilience in Emerging Multi-Value Technologies. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Moreau, Daniel; Bardizbanyan, Alen; Själander, Magnus; Whalley, David; Larsson-Edefors, Per. (2016) Practical Way Halting by Speculatively Accessing Halt Tags. IEEE conference proceedings
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sanchez, Carlos; Gavin, Peter; Moreau, Daniel; Själander, Magnus; Whalley, David; Larsson-Edefors, Per. (2016) Redesigning a tagless access buffer to require minimal ISA changes. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

Tidsskriftspublikasjoner

  • Saha, Sangeet; Chakraborty, Shounak; Agarwal, Sukarn; Gangopadhyay, Rahul; Själander, Magnus; McDonald-Maier, Klaus. (2023) DELICIOUS: Deadline-Aware Approximate Computing in Cache-Conscious Multicore. IEEE Transactions on Parallel and Distributed Systems
    Vitenskapelig artikkel
  • Metz, David Christoph; Kumar, Vineet; Själander, Hans Magnus. (2023) BISDU: A Bit-Serial Dot-Product Unit for Microcontrollers. ACM Transactions on Embedded Computing Systems
    Vitenskapelig artikkel
  • Jensen, Johannes Høydahl; Strømberg, Anders; Lykkebø, Odd Rune Strømmen; Penty, Arthur George; Lealiaert, Jonathan; Själander, Magnus. (2022) Flatspin: A large-scale artificial spin ice simulator. Physical review B (PRB)
    Vitenskapelig artikkel
  • Sakalis, Christos; Kaxiras, Stefanos; Själander, Hans Magnus. (2022) Delay-on-Squash: Stopping Microarchitectural Replay Attacks in Their Tracks. ACM Transactions on Architecture and Code Optimization (TACO)
    Vitenskapelig artikkel
  • Chakraborty, Shounak; Själander, Magnus. (2021) WaFFLe: Gated Cache-Ways with Per-Core Fine-Grained DVFS for Reduced On-Chip Temperature and Leakage Consumption. ACM Transactions on Architecture and Code Optimization (TACO)
    Vitenskapelig artikkel
  • Aimoniotis, Pavlos; Sakalis, Christos; Själander, Magnus; Kaxiras, Stefanos. (2021) Reorder Buffer Contention: A Forward Speculative Interference Attack for Speculation Invariant Instructions. IEEE computer architecture letters
    Vitenskapelig artikkel
  • Chakraborty, Shounak; Saha, Sangeet; Själander, Magnus; McDonald-Maier, Klaus. (2021) Prepare: Power-Aware Approximate Real-time Task Scheduling for Energy-Adaptive QoS Maximization. ACM Transactions on Embedded Computing Systems
    Vitenskapelig artikkel
  • Jensen, Johannes Høydahl; Strømberg, Anders; Lykkebø, Odd Rune Strømmen; Penty, Arthur George; Själander, Magnus; Folven, Erik. (2020) flatspin: A Large-Scale Artificial Spin Ice Simulator. arXiv.org
    Vitenskapelig artikkel
  • Reissmann, Nico; Meyer, Jan Christian; Bahmann, Helge; Själander, Magnus. (2020) RVSDG: An intermediate representation for optimizing compilers. ACM Transactions on Embedded Computing Systems
    Vitenskapelig artikkel
  • Nishtala, Rajiv; Petrucci, Vinicius; Carpenter, Paul; Själander, Magnus. (2020) Twig: Multi-Agent Task Management for Colocated Latency-Critical Cloud Services. IEEE Symposium on High-Performance Computer Architecture (HPCA)
    Vitenskapelig artikkel
  • Sakalis, Christos; Kaxiras, Stefanos; Ros, Alberto; Jimborean, Alexandra; Själander, Magnus. (2020) Understanding Selective Delay as a Method for Efficient Secure Speculative Execution. IEEE transactions on computers
    Vitenskapelig artikkel
  • Umuroglu, Yaman; Conficconi, Davide; Sasnayake Mudiyanselage, Lahiru Kasun Rasnayake; Preusser, Thomas B.; Själander, Magnus. (2019) Optimizing bit-serial matrix multiplication for reconfigurable computing. ACM Transactions on Reconfigurable Technology and Systems
    Vitenskapelig artikkel
  • Sakalis, Christos; Jimborean, Alexandra; Kaxiras, Stefanos; Själander, Magnus. (2019) Evaluating the Potential Applications of Quaternary Logic for Approximate Computing. ACM Journal on Emerging Technologies in Computing Systems (JETC)
    Vitenskapelig artikkel
  • Sakalis, Christos; Kaxiras, Stefanos; Ros, Alberto; Jimborean, Alexandra; Själander, Magnus. (2019) Efficient invisible speculative execution through selective delay and value prediction. Computer Architecture
    Vitenskapelig artikkel
  • Tran, Kim-anh; Carlson, Trevor E.; Koukos, Konstantinos; Själander, Magnus; Spiliopoulos, Vasileios; Kaxiras, Stefanos. (2017) Static Instruction Scheduling for High Performance on Limited Hardware. IEEE transactions on computers
    Vitenskapelig artikkel
  • Carlson, Trevor E.; Tran, Kim-anh; Jimborean, Alexandra; Koukos, Konstantinos; Själander, Magnus; Kaxiras, Stefanos. (2017) Transcending Hardware Limits with Software Out-of-order Processing. IEEE computer architecture letters
    Vitenskapelig artikkel

Bøker

  • Själander, Magnus. (2021) International Symposium on Secure and Private Execution Environment Design (SEED). IEEE (Institute of Electrical and Electronics Engineers) IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig antologi/Konferanseserie

Del av bok/rapport

  • Kvalsvik, Amund Bergland; Aimoniotis, Pavlos; Kaxiras, Stefanos; Själander, Hans Magnus. (2023) Doppelganger Loads: A Safe, Complexity-Effective Optimization for Secure Speculation Schemes. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Aimoniotis, Pavlos; Sakalis, Christos; Själander, Magnus; Kaxiras, Stefanos. (2021) WIP: “It’s a Trap!”—How Speculation Invariance Can Be Abused with Forward Speculative Interference. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sakalis, Christos; Själander, Magnus; Kaxiras, Stefanos. (2021) Seeds of SEED: Preventing Priority Inversion in Instruction Scheduling to Disrupt Speculative Interference. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sakalis, Christos; Chowdhury, Zamshed; Wadle, Shayne; Akturk, Ismail; Ros, Alberto; Själander, Magnus. (2021) Do Not Predict – Recompute! How Value Recomputation Can Truly Boost the Performance of Invisible Speculation. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tran, Kim-Anh; Sakalis, Christos; Själander, Magnus; Ros, Alberto; Kaxiras, Stefanos; Jimborean, Alexandra. (2020) Clearing the Shadows: Recovering Lost Performance for Invisible Speculative Execution through HW/SW Co-Design. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sakalis, Christos; Alipour, Mehdi; Ros, Alberto; Jimborean, Alexandra; Kaxiras, Stefanos; Själander, Magnus. (2019) Ghost loads: what is the cost of invisible speculation?. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sasnayake Mudiyanselage, Lahiru Kasun Rasnayake; Själander, Magnus. (2019) Improving Memory Access Locality for Vectorized Bit-Serial Matrix Multiplication in Reconfigurable Computing. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tran, Kim-anh; Jimborean, Alexandra; Carlson, Trevor E.; Koukos, Konstantinos; Själander, Magnus; Kaxiras, Stefanos. (2018) SWOOP: Software-Hardware Co-design for Non-speculative, Execute-Ahead, In-Order Cores. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Umuroglu, Yaman; Sasnayake Mudiyanselage, Lahiru Kasun Rasnayake; Själander, Magnus. (2018) BISMO: A Scalable Bit-Serial Matrix Multiplication Overlay for Reconfigurable Computing. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Tran, Kim-Anh; Carlson, Trevor E.; Koukos, Konstantinos; Själander, Magnus; Spiliopoulos, Vasileios; Kaxiras, Stefanos. (2017) Clairvoyance: Look-ahead compile-time scheduling. IEEE (Institute of Electrical and Electronics Engineers)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Själander, Magnus; Borgström, Gustaf; Klymenko, Mykhailo V; Remacle, Françoise; Kaxiras, Stefanos. (2016) Techniques for Modulating Error Resilience in Emerging Multi-Value Technologies. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Moreau, Daniel; Bardizbanyan, Alen; Själander, Magnus; Whalley, David; Larsson-Edefors, Per. (2016) Practical Way Halting by Speculatively Accessing Halt Tags. IEEE conference proceedings
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Sanchez, Carlos; Gavin, Peter; Moreau, Daniel; Själander, Magnus; Whalley, David; Larsson-Edefors, Per. (2016) Redesigning a tagless access buffer to require minimal ISA changes. Association for Computing Machinery (ACM)
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
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