Abdullah Giray Yağlıkçı

Tenure-Track Faculty at CISPA

I am a tenure-track faculty, leading the Secure and Sustainable System Scaling Lab at Helmholtz Institute Center of Information Security (CISPA). My current research aims enabling secure and sustainable system scaling as chips get denser and many users share chips. We push the boundaries of secure and sustainable system scaling via conducting research on high-performance, energy-efficient, and secure computer architectures and systems.

Join the team! We are always looking for self-motivated people. Please fill out this application form to join us.

Selected Publications

"In-DRAM True Random Number Generation Using Simultaneous Multiple-Row Activation: An Experimental Study of Real DRAM Chips"

İsmail Emir Yüksel, Ataberk Olgun, F. Nisa Bostancı, Oğuzhan Canpolat, Geraldo F. Oliveira, Mohammad Sadrosadati, A. Giray Yağlıkçı, Onur Mutlu

in Proceedings of the 43rd IEEE International Conference on Computer Design (ICCD), Dallas, TX, USA, 2025

Full Paper: [ pdf ] Slides: [ pptx ] [ pdf ]
"ColumnDisturb: Understanding Column-based Read Disturbance in Real DRAM Chips and Implications for Future Systems"

İsmail Emir Yüksel, Ataberk Olgun, F. Nisa Bostancı, Haocong Luo, A. Giray Yağlıkçı, Onur Mutlu

in Proceedings of the 58th International Symposium on Microarchitecture (MICRO), Seoul, South Korea, 2025

Full Paper: [ pdf ] Slides: [ pptx ] [ pdf ]

One of the 12 computer architecture papers of 2025 selected as Top Picks by IEEE Micro.
"Understanding and Mitigating Covert Channel and Side Channel Vulnerabilities Introduced by RowHammer Defenses"

F. Nisa Bostancı, Oğuzhan Canpolat, Ataberk Olgun, İsmail Emir Yüksel, Konstantinos Kanellopoulos, Mohammad Sadrosadati, A. Giray Yağlıkçı, Onur Mutlu

in Proceedings of the 58th International Symposium on Microarchitecture (MICRO), Seoul, South Korea, 2025

Full Paper: [ pdf ] Slides: [ pptx ] [ pdf ] Artifact: [ code ]
"Chronus: Understanding and Securing the Cutting-Edge Industry Solutions to DRAM Read Disturbance"

Oğuzhan Canpolat, A. Giray Yağlıkçı, Geraldo F. Oliveira, Ataberk Olgun, F. Nisa Bostancı, Ismail Emir Yüksel, Haocong Luo, Oğuz Ergin, Onur Mutlu

in Proceedings of the 31st International Symposium on High-Performance Computer Architecture (HPCA), Las Vegas, NV, USA, 2025

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Artifact: [ code ] DRAMSec'24 Version: [ Paper ] [ Slides ppt ] [ Slides pdf ]

Officially artifact evaluated as available, functional, and reproduced.

Invited Talk at Future of Memory Systems (FMS) 2025

Invited Talk at Hardwear.io, Amsterdam, 2025
"Understanding RowHammer Under Reduced Refresh Latency: Experimental Analysis of Real DRAM Chips and Implications on Future Solutions"

Yahya Can Tuğrul, A. Giray Yağlıkçı, Ismail Emir Yüksel, Ataberk Olgun, Oğuzhan Canpolat, F. Nisa Bostancı, Mohammad Sadrosadati, Oğuz Ergin, Onur Mutlu

in Proceedings of the 31st International Symposium on High-Performance Computer Architecture (HPCA), Las Vegas, NV, USA, 2025

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Artifact: [ code ]

Officially artifact evaluated as available, functional, and reproduced.

Distinguished Artifact Award at HPCA 2025
"BreakHammer: Enhancing RowHammer Mitigations by Carefully Throttling Suspect Threads"

Oğuzhan Canpolat, A. Giray Yağlıkçı, Ataberk Olgun, İsmail Emir Yüksel, Yahya Can Tuğrul, Konstantinos Kanellopoulos, Oğuz Ergin, Onur Mutlu

in Proceedings of the 57th International Symposium on Microarchitecture (MICRO), Austin, TX, USA, 2024

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Artifact: [ code ]

Officially artifact evaluated as available, functional, and reproduced.

Invited Talk at Hardwear.io, Amsterdam, 2025
"ABACuS: All-Bank Activation Counters for Scalable and Low Overhead RowHammer Mitigation"

Ataberk Olgun, Yahya Can Tuğrul, F. Nisa Bostancı, İsmail Emir Yüksel, Haocong Luo, Steve Rhyner, A. Giray Yağlıkçı, Geraldo F. Oliveira, Onur Mutlu

in Proceedings of the 33rd USENIX Security Symposium (USENIX Security, Philadelphia, PA, USA, 2024

Full Paper: [ pdf ] [ USENIX Security ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]

Officially artifact evaluated as available, functional, and reproduced.
"Spatial Variation-Aware Read Disturbance Defenses: Experimental Analysis of Real DRAM Chips and Implications on Future Solutions"

A. Giray Yağlıkçı, Yahya Can Tuğrul, Geraldo F. Oliveira, İsmail Emir Yüksel, Ataberk Olgun, Haocong Luo, Onur Mutlu

in Proceedings of the 30th IEEE International Symposium on High-Performance Computer Architecture (HPCA), Edinburgh, United Kingdom, 2024

Paper: [ pdf ] Live Talk: [ video ] [ ppt ] [ pdf ]
"Fundamentally Understanding and Solving RowHammer"

Onur Mutlu, Ataberk Olgun, A. Giray Yağlıkçı

in Proceedings of the Invited Special Session Paper at the 28th Asia and South Pacific Design Automation Conference (ASP-DAC), Tokyo, Japan, 2023

Full Paper: [ pdf ] Recorded Talk (26 mins): [ video ] [ ppt ] [ pdf ]
"HiRA: Hidden Row Activation for Reducing Refresh Latency of Off-the-Shelf DRAM Chips"

A. Giray Yağlıkçı, Ataberk Olgun, Minesh Patel, Haocong Luo, Hasan Hassan, Lois Orosa, Oğuz Ergin, Onur Mutlu

in Proceedings of the 55th International Symposium on Microarchitecture (MICRO), Chicago, IL, USA, 2022

Paper: [ pdf ] Live Talk Slides: [ ppt ] [ pdf ] Lecture (36 mins): [ video ] [ ppt ] [ pdf ]
"Understanding RowHammer Under Reduced Wordline Voltage: An Experimental Study Using Real DRAM Devices"

A. Giray Yağlıkçı, Haocong Luo, Geraldo F. Oliveira, Ataberk Olgun, Minesh Patel, Jisung Park, Hasan Hassan, Jeremie S. Kim, Lois Orosa, Onur Mutlu

in Proceedings of the 52nd Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), Baltimore, MD, USA, 2022

Paper: [ pdf ] [ arXiv ] Lightning Talk (2 mins): [ video ] [ pdf ] [ ppt ] Full Talk (34 mins incl. Q&A): [ video ] [ pdf ] [ ppt ]
"A Deeper Look into RowHammer's Sensitivities: Experimental Analysis of Real DRAM Chips and Implications on Future Attacks and Defenses"

A. Giray Yağlıkçı,^* Lois Orosa,^* Haocong Luo, Ataberk Olgun, Jisung Park, Hasan Hassan, Minesh Patel, Jeremie S. Kim, Onur Mutlu

in Proceedings of the 54th International Symposium on Microarchitecture (MICRO), Virtual, 2021

Paper: [ pdf ] [ arXiv ] Lightning Talk (1.5 mins): [ video ] [ pdf ] [ ppt ] Full Talk (21 mins): [ video ] [ pdf ] [ ppt ]
"BlockHammer: Preventing RowHammer at Low Cost by Blacklisting Rapidly-Accessed DRAM Rows"

A. Giray Yağlıkçı, Minesh Patel, Jeremie S. Kim, Roknoddin Azizi, Ataberk Olgun, Lois Orosa, Hasan Hassan, Jisung Park, Konstantinos Kanellopoulos, Taha Shahroodi, Saugata Ghose, Onur Mutlu

in Proceedings of the 27th IEEE International Symposium on High-Performance Computer Architecture (HPCA), Virtual, 2021

Paper: [ pdf ] Short Talk (7 mins): [ video ] [ ppt ] [ pdf ] Full Talk (22 mins): [ video ] [ ppt ] [ pdf ] Intel HWSec Academic Awards Talk (2 mins): [ video ] [ ppt ] [ pdf ]

Intel Hardware Security Academic Award Finalist (one of 4 finalists out of 34 nominations)

PhD Dissertation

"Enabling Efficient and Scalable DRAM Read Disturbance Mitigation via New Experimental Insights into Modern DRAM Chips"

A. Giray Yağlıkçı

PhD Thesis, ETH Zürich, 2024

Online: [ pdf ] [ ETH Library ]
Defense Slides: [ ppt ] [ pdf ]

ACM SIGMICRO Dissertation Award 2025

IEEE/IFIP DSN W. C. Carter Doctoral Dissertation Award 2025

ACM SIGARCH Outstanding Dissertation Award (Honorable Mention) 2025

IEEE TTTC McCluskey Doctoral Dissertation Award (Semifinalist) 2025

ETH Medal for Outstanding Doctoral Thesis (Nominated) 2024

HOST Best Dissertation Award (Finalist) 2024

Selected Talks and Lectures

Lecture in EFCL Summer School

Memory Latency, Data Retention, and Refresh
90 mins | Video: | Slides:

Lecture in ETH Zurich

DRAM Robustness and RowHammer Lecture (Second half of the lecture)
1 hour | Video: | Slides:

HOST 2024

Blinded PhD Research Summary
23 mins | Video: | Slides:

SAFARI Live Seminar

A Deeper Look into RowHammer's Characteristics in Real Modern DRAM Chips
1 hour 50 mins | Video: | Slides:

SAFARI Live Seminar

Efficiently and Scalably Mitigating RowHammer in DRAM-Based Memory Systems
2 hours 4 mins | Video: | Slides:

MICRO 2023

PhD Research Summary
3 mins | Video: | Slides:

Lecture in ETH Zurich

Memory Security, Reliability, Safetry Problems and Solutions
2 hours 50 mins | Video: | Slides:

ASP-DAC 2023

Fundamentally Understanding and Solving RowHammer
26 mins | Video: | Slides:

AMLD 2022

Fundamentally Understanding and Solving RowHammer
20 mins | Video: | Slides:

P&S DRAM Bender, ETH Zurich

A Deeper Look into RowHammer's Sensitivities
1 hour | Video: | Slides:

Awards & Honors

ACM SIGMICRO Dissertation Award, 2025 - Recipient
W. C. Carter PhD Dissertation Award in Dependability, 2025 - Recipient
ACM SIGARCH / IEEE CS TCCA Outstanding Dissertation Award, 2025 - Honorable Mention
ETH Medal, 2024 - Nominated
HOST PhD Dissertation Competition, 2024 - Finalist
IEEE TTTC E. J. McCluskey Best Doctoral Thesis Award, 2025 - Semi-finalist
ACM PACT Student Research Competition, 2023 - Recipient for an early version of Svärd (HPCA 2024)
Intel Hardware Security Academic Award, 2022 - Finalist for BlockHammer (HPCA 2021)
ISCA Hall of Fame, 2025 - Inducted with 8 papers
HPCA Hall of Fame, 2025 - Inducted with 10 papers

Employment

Oct 2025 -

Tenure-Track Faculty - Helmholtz Center for Information Security (CISPA)

Oct 2024 - Sep 2025

Postdoctoral Researcher and Lecturer - ETH Zürich

Apr 2024 - Oct 2025

Researcher - ETH Zürich

Feb 2018 - Apr 2024

Research and Teaching Assistant - ETH Zürich

Aug 2017 - Feb 2018

Research Intern - Intel Labs Santa Clara

Aug 2016 - Aug 2017

Research Intern - Carnegie Mellon University (CMU)

Aug 2014 - Aug 2016

Research Assistant - University of Notre Dame Du Lac (ND)

Jan 2012 - Aug 2014

Research and Teaching Assistant - TOBB University of Economics and Technology (TOBB ETÜ)

May 2011 - Dec 2011

Electrical Design Engineer - Kasirga Information Systems

May 2010 - Apr 2011

Electrical Design Engineer - Yumruk Space and Defense Industry

Education

2024

PhD

ETH Zürich

2016

MSc

University of Notre Dame Du Lac (ND)

2014

MSc

TOBB University of Economics and Technology

2011

BSc

TOBB University of Economics and Technology

Service

2026

Program Committee Member for HPCA, DSN, and ISCA

2025

Program Committee Member for DRAMSec Workshop at ISCA
Submission and Web Co-Chair for DRAMSec Workshop at ISCA
Reviewer for IEEE CAL
Organization Chair for SaLWo: SAFARI Live Workshop

2024

Artifact Evaluation Committee Member for ASPLOS and DSN

2023

Student Assistant to PC chairs for DSN
External Program Committee Member for DSN

2022

Reviewer for TODAES
Subreviewer for ASPLOS, DSN, ISCA, CAL, DRAMSec, TC, TCAD, and USENIX ATC

2021

Subreviewer for HPCA, MICRO, TCAD, and USENIX ATC

2020

Subreviewer for DSN, ISCA, MICRO, CCS, ISCAS, ISPASS, NVMW, and TCSI

2019

Subreviewer for DSN, ISCA, MICRO, MSST, TCAD, and TED

2018

Subreviewer for ASPLOS, HPCA, PACT, Nature Electronics, TC, and TVLSI

2017

Subreviewer for DSN, MICRO, ISCA, and PLDI

Other Publications

"Memory Band-Aid: A Principled RowHammer Defense-in-Depth"

Carina Fiedler, Jonas Juffinger, Sudheendra Raghav Neela, Martin Heckel, Hannes Weissteiner, A. Giray Yağlıkçı, Florian Adamsky, Daniel Gruss

in Proceedings of the Network and Distributed System Security Symposium (NDSS), San Diego, CA, USA, 2026

Preprint: [ pdf ]
"PuDHammer: Experimental Analysis of Read Disturbance Effects of Processing-using-DRAM in Real DRAM Chips"

İsmail Emir Yüksel, Akash Sood, Ataberk Olgun, Oğuzhan Canpolat, Haocong Luo, F. Nisa Bostancı, Mohammad Sadrosadati, A. Giray Yağlıkçı, Onur Mutlu

in Proceedings of the 52nd Annual International Symposium on Computer Architecture (ISCA), Tokyo, Japan, 2025

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ]
"Proteus: Achieving High-Performance Processing-Using-DRAM via Dynamic Precision Bit-Serial Arithmetic"

Geraldo F. Oliveira, Mayank Kabra, Yuxin Guo, Kangqi Chen, A. Giray Yağlıkçı, Melina Soysal, Mohammad Sadrosadati, Joaquin Olivares, Saugata Ghose, Juan Gómez-Luna, Onur Mutlu

in Proceedings of the 37th ACM International Conference on Supercomputing (ICS), Salt Lake City, UT, USA, 2025

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ]
"Revisiting Main Memory-Based Covert and Side Channel Attacks in the Context of Processing-in-Memory"

F. Nisa Bostancı, Konstantinos Kanellopoulos, Ataberk Olgun, A. Giray Yağlıkçı, İsmail Emir Yüksel, Nika Mansouri Ghiasi, Zülal Bingol, Mohammad Sadrosadati, Onur Mutlu

in Proceedings of the 55th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), Naples, Italy, 2025

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]

Officially artifact evaluated as available, reviewed, and reproduced.
"Revisiting DRAM Read Disturbance: Identifying Inconsistencies Between Experimental Characterization with Device-Level Studies"

Haocong Luo, İsmail Emir Yüksel, Ataberk Olgun, A. Giray Yağlıkçı, Onur Mutlu

in Proceedings of the 43rd IEEE VLSI Test Symposium (VTS), Tempe, AZ, USA, 2025

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]
"Variable Read Disturbance: An Experimental Analysis of Temporal Variation in DRAM Read Disturbance"

Ataberk Olgun, F. Nisa Bostancı, İsmail Emir Yüksel, A. Giray Yağlıkçı, Geraldo F. Oliveira, Haocong Luo, Oğuzhan Canpolat, Minesh Patel, Onur Mutlu

in Proceedings of the 31st IEEE International Symposium on High-Performance Computer Architecture (HPCA), Las Vegas, NV, USA, 2025

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ]
"Rethinking the Producer-Consumer Relationship in Modern DRAM-Based Systems"

Minesh Patel, Taha Shahroodi, Aditya Manglik, A. Giray Yağlıkçı, Ataberk Olgun, Haocong Luo, Onur Mutlu

IEEE Access, 2024

Full Paper: [ pdf ] [ IEEE Access ] Source Code and Data: [ code ]
"Self-Managing DRAM: A Low-Cost Framework for Enabling Autonomous and Efficient DRAM Maintenance Operations"

Hasan Hassan, Ataberk Olgun, A. Giray Yağlıkçı, Haocong Luo, Onur Mutlu

in Proceedings of the 57th International Symposium on Microarchitecture (MICRO), Austin, TX, USA, 2024

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]
"Sectored DRAM: A Practical Energy-Efficient and High-Performance Fine-Grained DRAM Architecture"

Ataberk Olgun, F. Nisa Bostancı, Geraldo F. Oliveira, Yahya Can Tuğrul, Rahul Bera, A. Giray Yağlıkçı, Hasan Hassan, Oğuz Ergin, Onur Mutlu

ACM Transactions on Architecture and Code Optimization (TACO), 2024

Full Paper: [ pdf ] [ ACM Digital Library ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]
"RowPress Vulnerability in Modern DRAM Chips"

Haocong Luo, Ataberk Olgun, A. Giray Yağlıkçı, Yahya Can Tuğrul, Steve Rhyner, M. Banu Cavlak, Joel Lindegger, Mohammad Sadrosadati, Onur Mutlu

Special Issue, IEEE Micro, Special Issue: Micro's Top Picks from 2023 Computer Architecture Conferences (MICRO TOP PICKS), 2024

Full Paper: [ pdf ]
"Read Disturbance in High Bandwidth Memory: A Detailed Experimental Study on HBM2 DRAM Chips"

Ataberk Olgun, Majd Osseiran, A. Giray Yağlıkçı, Yahya Can Tuğrul, Haocong Luo, Steve Rhyner, Behzad Salami, Juan Gómez-Luna, Onur Mutlu

in Proceedings of the 54th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), Brisbane, Australia, 2024

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]

Officially artifact evaluated as both code and dataset available, reviewed and reproducible.
"Simultaneous Many-Row Activation in Off-the-Shelf DRAM Chips: Experimental Characterization and Analysis"

İsmail Emir Yüksel, Yahya Can Tuğrul, F. Nisa Bostancı, Geraldo F. Oliveira, A. Giray Yağlıkçı, Ataberk Olgun, Melina Soysal, Haocong Luo, Juan Gómez-Luna, Mohammad Sadrosadati, Onur Mutlu

in Proceedings of the 54th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), Brisbane, Australia, 2024

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]

Officially artifact evaluated as both code and dataset available, reviewed and reproducible.
"An Experimental Characterization of Combined RowHammer and RowPress Read Disturbance in Modern DRAM Chips"

Haocong Luo, İsmail Emir Yüksel, Ataberk Olgun, A. Giray Yağlıkçı, Mohammad Sadrosadati, Onur Mutlu

in Proceedings of the 54th Annual IEEE/IFIP International Conference on Dependable Systems and Networks Disrupt Track (DSN Disrupt), Brisbane, Australia, 2024

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ]
"Functionally-Complete Boolean Logic in Real DRAM Chips: Experimental Characterization and Analysis"

İsmail Emir Yüksel, Yahya Can Tuğrul, Ataberk Olgun, F. Nisa Bostancı, A. Giray Yağlıkçı, Geraldo F. Oliveira, Haocong Luo, Juan Gómez-Luna, Mohammad Sadrosadati, Onur Mutlu

in Proceedings of the 30th International Symposium on High-Performance Computer Architecture (HPCA), Edinburgh, UK, 2024

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]
"CoMeT: Count-Min-Sketch-based Row Tracking to Mitigate RowHammer at Low Cost"

F. Nisa Bostancı, İsmail Emir Yüksel, Ataberk Olgun, Konstantinos Kanellopoulos, Yahya Can Tuğrul, A. Giray Yağlıkçı, Mohammad Sadrosadati, Onur Mutlu

in Proceedings of the 30th International Symposium on High-Performance Computer Architecture (HPCA), Edinburgh, UK, 2024

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]

Officially artifact evaluated as available, functional, and reproduced.
"MIMDRAM: An End-to-End Processing-Using-DRAM System for High-Throughput, Energy-Efficient and Programmer-Transparent Multiple-Instruction Multiple-Data Computing"

Geraldo F. Oliveira, Ataberk Olgun, A. Giray Yağlıkçı, F. Nisa Bostancı, Juan Gómez-Luna, Saugata Ghose, Onur Mutlu

in Proceedings of the 30th International Symposium on High-Performance Computer Architecture (HPCA), Edinburgh, UK, 2024

Full Paper: [ pdf ] Extended Version: [ pdf ] Source Code: [ code ]
"Ramulator 2.0: A Modern, Modular, and Extensible DRAM Simulator"

Haocong Luo, Yahya Can Tuğrul, F. Nisa Bostancı, Ataberk Olgun, A. Giray Yağlıkçı, Onur Mutlu

IEEE Access, 2024

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ] Source Code: [ code ]
"SpyHammer: Understanding and Exploiting RowHammer Under Fine-Grained Temperature Variations"

Lois Orosa, Ulrich Ruhrmair, A. Giray Yağlıkçı, Haocong Luo, Ataberk Olgun, Patrick Jattke, Minesh Patel, Jeremie S. Kim, Kaveh Razavi, Onur Mutlu

IEEE Access, 2024

Full Paper: [ pdf ]
"RowPress: Amplifying Read Disturbance in Modern DRAM Chips"

Haocong Luo, Ataberk Olgun, A. Giray Yağlıkçı, Yahya Can Tuğrul, Steve Rhyner, M. Banu Cavlak, Joel Lindegger, Mohammad Sadrosadati, Onur Mutlu

in Proceedings of the 50th International Symposium on Computer Architecture (ISCA), Orlando, FL, USA, 2023

Full Paper: [ pdf ] Extended Version: [ pdf ] Lightning Talk (3 mins): [ video ] [ ppt ] [ pdf ] Full Talk (26 mins): [ video ] [ ppt ] [ pdf ] Source Code: [ code ]

Officially artifact evaluated as available, reusable and reproducible.

Distinguished artifact award at ISCA 2023.

One of the 12 computer architecture papers of 2023 selected as Top Picks by IEEE Micro.
"An Experimental Analysis of RowHammer in HBM2 DRAM Chips"

Ataberk Olgun, Majd Osseiran, A. Giray Yağlıkçı, Yahya Can Tuğrul, Haocong Luo, Steve Rhyner, Behzad Salami, Juan Gómez-Luna, Onur Mutlu

in Proceedings of the 53nd Annual IEEE/IFIP International Conference on Dependable Systems and Networks Disrupt Track (DSN Disrupt), Porto, Portugal, 2023

Full Paper: [ pdf ] Full Talk (26 mins): [ video ] [ ppt ] [ pdf ]
"DRAM Bender: An Extensible and Versatile FPGA-based Infrastructure to Easily Test State-of-the-art DRAM Chips"

Ataberk Olgun, Hasan Hassan, A. Giray Yağlıkçı, Yahya Can Tuğrul, Lois Orosa, Haocong Luo, Minesh Patel, Oğuz Ergin, Onur Mutlu

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2023

Full Paper: [ pdf ] Source Code: [ code ]
"DR-STRaNGe: End-to-End System Design for DRAM-based True Random Number Generators"

F. Nisa Bostancı, Ataberk Olgun, Lois Orosa, A. Giray Yağlıkçı, Jeremie S. Kim, Hasan Hassan, Oğuz Ergin, Onur Mutlu

in Proceedings of the 28th International Symposium on High-Performance Computer Architecture (HPCA), Virtual, 2022

Full Paper: [ pdf ] Full Talk (24 mins): [ video ] [ ppt ] [ pdf ]
"DarkGates: A Hybrid Power-Gating Architecture to Mitigate the Performance Impact of Dark-Silicon in High Performance Processors"

Jawad Haj-Yahya, Jeremie S. Kim, A. Giray Yağlıkçı, Jisung Park, Efraim Rotem, Yanos Sazeides, Onur Mutlu

in Proceedings of the 28th International Symposium on High-Performance Computer Architecture (HPCA), Virtual, 2022

Full Paper: [ pdf ] Slides: [ ppt ] [ pdf ]
"QUAC-TRNG: High-Throughput True Random Number Generation Using Quadruple Row Activation in Commodity DRAM Chips"

Ataberk Olgun, Minesh Patel, A. Giray Yağlıkçı, Haocong Luo, Jeremie S. Kim, F. Nisa Bostancı, Nandita Vijaykumar, Oğuz Ergin, Onur Mutlu

in Proceedings of the 48th International Symposium on Computer Architecture (ISCA), Virtual, 2021

Full Paper: [ pdf ] Full Talk (25 mins): [ video ] [ ppt ] [ pdf ] SAFARI Live Seminar (1hr 26 mins): [ video ]
"IChannels: Exploiting Current Management Mechanisms to Create Covert Channels in Modern Processors"

Jawad Haj-Yahya, Jeremie S. Kim, A. Giray Yağlıkçı, Ivan Puddu, Lois Orosa, Juan Gómez-Luna, Mohammed Alser, Onur Mutlu

in Proceedings of the 48th International Symposium on Computer Architecture (ISCA), Virtual, 2021

Full Paper: [ pdf ] Full Talk (21 mins): [ video ] [ ppt ] [ pdf ]
"Revisiting RowHammer: An Experimental Analysis of Modern Devices and Mitigation Techniques"

Jeremie S. Kim, Minesh Patel, A. Giray Yağlıkçı, Hasan Hassan, Roknoddin Azizi, Lois Orosa, Onur Mutlu

in Proceedings of the 47th International Symposium on Computer Architecture (ISCA), Valencia, Spain, 2020

Full Paper: [ pdf ] Full Talk (20 mins): [ video ] [ ppt ] [ pdf ] Lecture (55 mins): [ video ] [ ppt ] [ pdf ]
"CLR-DRAM: A Low-Cost DRAM Architecture Enabling Dynamic Capacity-Latency Trade-Off"

Haocong Luo, Taha Shahroodi, Hasan Hassan, Minesh Patel, A. Giray Yağlıkçı, Lois Orosa, Jisung Park, Onur Mutlu

in Proceedings of the 47th International Symposium on Computer Architecture (ISCA), Valencia, Spain, 2020

Full Paper: [ pdf ] Full Talk (20 mins): [ video ] [ ppt ] [ pdf ]
"SysScale: Exploiting Multi-domain Dynamic Voltage and Frequency Scaling for Energy Efficient Mobile Processors"

Jawad Haj-Yahya, Mohammed Alser, Jeremie S. Kim, A. Giray Yağlıkçı, Nandita Vijaykumar, Efraim Rotem, Onur Mutlu

in Proceedings of the 47th International Symposium on Computer Architecture (ISCA), Valencia, Spain, 2020

Full Paper: [ pdf ] Full Talk (17 mins): [ video ] [ ppt ] [ pdf ]
"EDEN: Energy-Efficient, High-Performance Neural Network Inference Using Approximate DRAM"

Skanda Koppula, Lois Orosa, A. Giray Yağlıkçı, Roknoddin Azizi, Taha Shahroodi, Konstantinos Kanellopoulos, Onur Mutlu

in Proceedings of the 52nd International Symposium on Microarchitecture (MICRO), Columbus, OH, USA, 2019

Full Paper: [ pdf ] Lecture (38 mins): [ video ] [ ppt ] [ pdf ] Lightning Talk: [ video ] [ ppt ] [ pdf ]
"CROW: A Low-Cost Substrate for Improving DRAM Performance, Energy Efficiency, and Reliability"

Hasan Hassan, Minesh Patel, Jeremie S. Kim, A. Giray Yağlıkçı, Nandita Vijaykumar, Nika Mansouri Ghiasi, Saugata Ghose, Onur Mutlu

in Proceedings of the 46th International Symposium on Computer Architecture (ISCA), Phoenix, AZ, USA, 2019

Full Paper: [ pdf ] Full Talk: [ video ] [ ppt ] [ pdf ] Lightning Talk: [ video ] [ ppt ] [ pdf ]
"What Your DRAM Power Models Are Not Telling You: Lessons from a Detailed Experimental Study"

Saugata Ghose, A. Giray Yağlıkçı, Raghav Gupta, Donghyuk Lee, Kais Kudrolli, William X. Liu, Hasan Hassan, Kevin K. Chang, Niladrish Chatterjee, Aditya Agrawal, Mike O'Connor, Onur Mutlu

in Proceedings of the ACM International Conference on Measurement and Modeling of Computer Systems (SIGMETRICS), Irvine, CA, USA, 2018

Abstract: [ pdf ] Full Paper: [ pdf ] POMACS Journal Version: [ pdf ] Slides: [ ppt ] [ pdf ]
"Understanding Reduced-Voltage Operation in Modern DRAM Devices: Experimental Characterization, Analysis, and Mechanisms"

Kevin K. Chang, A. Giray Yağlıkçı, Saugata Ghose, Aditya Agrawal, Niladrish Chatterjee, Abhijith Kashyap, Donghyuk Lee, Mike O'Connor, Hasan Hassan, Onur Mutlu

in Proceedings of the ACM International Conference on Measurement and Modeling of Computer Systems (SIGMETRICS), Urbana-Champaign, IL, USA, 2017

Abstract: [ pdf ] Full Paper: [ pdf ] POMACS Journal Version: [ pdf ] Slides: [ video ] [ ppt ] [ pdf ]

Technical Reports

"Understanding the Security Benefits and Overheads of Emerging Industry Solutions to DRAM Read Disturbance"

Oğuzhan Canpolat, A. Giray Yağlıkçı, Geraldo F. Oliveira, Ataberk Olgun, Oğuz Ergin, Onur Mutlu

4th Workshop on DRAM Security (DRAMsec), held with 51st ISCA, Buenos Aires, Argentina, 2024

Slides: [ ppt ] [ pdf ] Paper: [ pdf ] Source Code: [ code ]
"Security Analysis of the Silver Bullet Technique for RowHammer Prevention"

A. Giray Yağlıkçı, Jeremie S. Kim, Fabrice Devaux, Onur Mutlu

arXiv:2106.07084 [cs.CR], 2021

Full Paper: [ pdf ]

Publication Venues:

International Symposium on High-Performance Computer Architecture (HPCA): 10 papers International Symposium on Computer Architecture (ISCA): 8 papers International Symposium on Microarchitecture (MICRO): 7 papers IEEE/IFIP International Conference on Dependable Systems and Networks (DSN): 4 papers IEEE/IFIP International Conference on Dependable Systems and Networks Disrupt Track (DSN Disrupt): 2 papers ACM International Conference on Measurement and Modeling of Computer Systems (SIGMETRICS): 2 papers IEEE VLSI Test Symposium (VTS): 1 papers Asia and South Pacific Design Automation Conference (ASP-DAC): 1 papers USENIX Security Symposium: 1 papers Network and Distributed System Security Symposium (NDSS): 1 papers Workshop on DRAM Security (DRAMsec): 1 papers

Recent Collaborators

Onur Mutlu Ataberk Olgun Haocong Luo F. Nisa Bostancı İsmail Emir Yüksel Yahya Can Tuğrul Geraldo F. Oliveira Mohammad Sadrosadati Jeremie S. Kim Minesh Patel Oğuz Ergin Hasan Hassan Lois Orosa Oğuzhan Canpolat Juan Gómez-Luna Konstantinos Kanellopoulos Steve Rhyner Jisung Park Saugata Ghose Behzad Salami Ismail Emir Yüksel Jawad Haj-Yahya Joel Lindegger M. Banu Cavlak Majd Osseiran Melina Soysal Taha Shahroodi Aditya Manglik Akash Sood Carina Fiedler Daniel Gruss Efraim Rotem Fabrice Devaux Florian Adamsky Hannes Weissteiner Ivan Puddu Joaquin Olivares Jonas Juffinger Kangqi Chen Kaveh Razavi Martin Heckel Mayank Kabra Mohammed Alser Nandita Vijaykumar Nika Mansouri Ghiasi Patrick Jattke Rahul Bera Roknoddin Azizi Sudheendra Raghav Neela Ulrich Ruhrmair Yanos Sazeides Yuxin Guo Zülal Bingol

Last update: April 15, 2026