Portrait
Houxiang Ji
Memory System Research Group, SK hynix America
Computer Architecture and Systems Researcher
About Me

I am currently with the Memory System Research Group at SK hynix America. My research interests include computer architecture, memory systems, Compute Express Link (CXL), near-memory acceleration, heterogeneous computing, and systems for machine learning.

I received my Ph.D. in computer science from the Siebel School of Computing and Data Science at the University of Illinois Urbana-Champaign (UIUC), advised by Prof. Nam Sung Kim. I was affiliated with the FAST research group and Coordinated Science Lab.

Before joining UIUC, I received my bachelor's degree in Computer Science and Engineering and Finance from Shanghai Jiao Tong University (SJTU). I have worked as a visiting researcher at Meta and as a research intern at Luminous Computing and Intel Labs.

Curriculum Vitae
Education
  • University of Illinois Urbana-Champaign
    University of Illinois Urbana-Champaign
    Siebel School of Computing and Data Science
    Ph.D. in Computer Science
    2025
  • University of Illinois Urbana-Champaign
    University of Illinois Urbana-Champaign
    Siebel School of Computing and Data Science
    M.S. in Computer Science
    2021
  • Shanghai Jiao Tong University
    Shanghai Jiao Tong University
    B.S. in Computer Science and Engineering and Finance
    2018
Experience
  • SK hynix America
    SK hynix America
    Memory System Research Group
    Aug. 2025 - Present
  • Meta
    Meta
    Visiting Researcher, Capacity Engineering and Analysis
    Jul. 2022 - Dec. 2022
  • Luminous Computing
    Luminous Computing
    Research Intern, CPU Design
    May 2021 - Aug. 2021
  • Intel Labs
    Intel Labs
    Research Intern, Security and Privacy Research
    May 2020 - Aug. 2020
News
2026
Two papers accepted to HPCA 2027 on CXL-based data delivery and on-chip analytics acceleration for filtered proximity graph search.
Nov 02
Serving on the DATE 2027 technical program committee.
Sep 21
Honored to be inducted into the MICRO Hall of Fame this year. I am deeply grateful to my advisor and collaborators for their guidance, support, and partnership.
Sep 14
Serving on the HPCA 2027 program committee.
Jul 15
Three papers accepted to MICRO 2026 on processing-using-DRAM for AI workloads, CXL AnySSD, and an on-chip accelerator for approximate nearest neighbor search (ANNS).
Jul 08
One paper accepted to OSDI 2026 on CXL DRAM metadata acceleration.
Jul 01
2025
One paper accepted to MICRO 2025 on CXL-based end-host networking.
Jul 16
One paper accepted to USENIX ATC 2025 on parallel memory deduplication with Intel DSA.
Apr 25
Selected Publications (view all )
CXL AnySSD: A Composable CXL SSD Using a CXL Type-2 Device and Any SSDs

Yang Zhou*, Houxiang Ji*, Bikrant Sharma, Jiyuan Zhang, Yu Li, Linjie Ma, Jaeyong Lee, Myoungjun Chun, Jihong Kim, Sudarsun Kannan, Nam Sung Kim (* equal contribution)

59th IEEE/ACM International Symposium on Microarchitecture (MICRO) 2026 *equal contribution Artifacts Evaluated - Functional Results Reproduced

CXL AnySSD: A Composable CXL SSD Using a CXL Type-2 Device and Any SSDs

Yang Zhou*, Houxiang Ji*, Bikrant Sharma, Jiyuan Zhang, Yu Li, Linjie Ma, Jaeyong Lee, Myoungjun Chun, Jihong Kim, Sudarsun Kannan, Nam Sung Kim (* equal contribution)

59th IEEE/ACM International Symposium on Microarchitecture (MICRO) 2026 *equal contribution Artifacts Evaluated - Functional Results Reproduced

C3: Collaborative CPU-Commodity DRAM Computation for Reliable LLM Acceleration

Houxiang Ji*, E. Ezgi Yücel*, Yaochen Li, Prajwal Ramakrishna, Derrick Quinn, Jungmin Choi, Hoshik Kim, Mohammad Alian, José F. Martínez (* equal contribution)

59th IEEE/ACM International Symposium on Microarchitecture (MICRO) 2026 *equal contribution

C3: Collaborative CPU-Commodity DRAM Computation for Reliable LLM Acceleration

Houxiang Ji*, E. Ezgi Yücel*, Yaochen Li, Prajwal Ramakrishna, Derrick Quinn, Jungmin Choi, Hoshik Kim, Mohammad Alian, José F. Martínez (* equal contribution)

59th IEEE/ACM International Symposium on Microarchitecture (MICRO) 2026 *equal contribution

Para-ksm: Parallelized Memory Deduplication with Data Streaming Accelerator

Houxiang Ji, Minho Kim, Seonmu Oh, Daehoon Kim, Nam Sung Kim

USENIX Annual Technical Conference (ATC) 2025 Artifacts Available Artifacts Evaluated - Functional Results Reproduced

[Paper]

Para-ksm: Parallelized Memory Deduplication with Data Streaming Accelerator

Houxiang Ji, Minho Kim, Seonmu Oh, Daehoon Kim, Nam Sung Kim

USENIX Annual Technical Conference (ATC) 2025 Artifacts Available Artifacts Evaluated - Functional Results Reproduced

[Paper]

Re-architecting End-host Networking with CXL: Coherence, Memory, and Offloading

Houxiang Ji, Yifan Yuan, Yang Zhou, Ipoom Jeong, Ren Wang, Saksham Agarwal, Nam Sung Kim

58th IEEE/ACM International Symposium on Microarchitecture (MICRO) 2025 Artifacts Evaluated - Functional Results Reproduced

[Paper]

Re-architecting End-host Networking with CXL: Coherence, Memory, and Offloading

Houxiang Ji, Yifan Yuan, Yang Zhou, Ipoom Jeong, Ren Wang, Saksham Agarwal, Nam Sung Kim

58th IEEE/ACM International Symposium on Microarchitecture (MICRO) 2025 Artifacts Evaluated - Functional Results Reproduced

[Paper]

Demystifying a CXL Type-2 Device: A Heterogeneous Cooperative Computing Perspective

Houxiang Ji, Srikar Vanavasam, Yang Zhou, Qirong Xia, Jinghan Huang, Yifan Yuan, Ren Wang, Pekon Gupta, Bhushan Chitlur, Ipoom Jeong, Nam Sung Kim

57th IEEE/ACM International Symposium on Microarchitecture (MICRO) 2024 Artifacts Evaluated - Functional Results Reproduced

[Paper]

Demystifying a CXL Type-2 Device: A Heterogeneous Cooperative Computing Perspective

Houxiang Ji, Srikar Vanavasam, Yang Zhou, Qirong Xia, Jinghan Huang, Yifan Yuan, Ren Wang, Pekon Gupta, Bhushan Chitlur, Ipoom Jeong, Nam Sung Kim

57th IEEE/ACM International Symposium on Microarchitecture (MICRO) 2024 Artifacts Evaluated - Functional Results Reproduced

[Paper]

STYX: Exploiting SmartNIC Capability to Reduce Datacenter Memory Tax

Houxiang Ji, Yan Sun, Mark Mansi, Yifan Yuan, Jinghan Huang, Reese Kuper, Michael M Swift, Nam Sung Kim

USENIX Annual Technical Conference (ATC) 2023

[Paper] [PDF]

STYX: Exploiting SmartNIC Capability to Reduce Datacenter Memory Tax

Houxiang Ji, Yan Sun, Mark Mansi, Yifan Yuan, Jinghan Huang, Reese Kuper, Michael M Swift, Nam Sung Kim

USENIX Annual Technical Conference (ATC) 2023

[Paper] [PDF]

All publications