R.S. Ray Andrew Sinurat

PhD Candidate · University of Chicago

Ray A. O. Sinurat.

Day job: storage and I/O for deep learning at scale.
Side quests lately: the biology of aging.

PhD candidate at the Department of Computer Science at the University of Chicago, advised by Haryadi S. Gunawi and Hariharan Devarajan. I research with the UCARE group in collaboration with Argonne National Laboratory and Lawrence Livermore National Laboratory.

01

Publications

Peer-reviewed work and posters.

  1. 2026

  2. SSDBM'26

    HORATIO: Bridging Management and Analysis of Traces at Scale

    Ray A. O. Sinurat, William Nixon, Haryadi S. Gunawi, Nikoli Dryden, Hariharan Devarajan

    38th International Conference on Scalable Scientific Data Management

    pdf

  3. MAPSS+DevCell'26

    TFEB/HLH-30-mediated Expansion of Lysosomal Capacity Protects C. elegans Neurons During Aging

    Ruiling Zhong, Ray A. O. Sinurat, Sherlyn Wijaya, Claire Richardson

    2026 C. elegans Metabolism, Aging, Pathogenesis, Stress and Small RNAs (MAPSS) & C. elegans Development Cell Biology & Gene Expression (DevCell) Joint Meeting

    Poster

    poster

  4. MAPSS+DevCell'26

    The Long-Lived Dauer State Flips Synapse Shrinkage to Growth During Chronological Aging

    Sherlyn Wijaya, Ray A. O. Sinurat, Ruiling Zhong, Claire Richardson

    2026 C. elegans Metabolism, Aging, Pathogenesis, Stress and Small RNAs (MAPSS) & C. elegans Development Cell Biology & Gene Expression (DevCell) Joint Meeting

    Poster

    poster

  5. HPDC'26 14% Acceptance Rate

    GLANCED-IO: Taming I/O Optimization for Deep Learning at Scale

    Ray A. O. Sinurat, William Nixon, Philip Carns, Huihuo Zheng, Sandeep Madireddy, Sam Foreman, Troy Arcomano, Robert Ross, Haryadi S. Gunawi, Hariharan Devarajan

    Proceedings of the 35th International Symposium on High-Performance Parallel and Distributed Computing

    pdf

  6. REX-IO@HPDC'26

    CoDL: A Framework for Studying Cross-Component Interference in Deep Learning Training Pipelines

    Druva Dhakshinamoorthy, Ray A. O. Sinurat, Nikoli Dryden, Arnab K. Paul, Hariharan Devarajan

    Workshop on Re-envisioning Extreme-Scale I/O for Emerging Hybrid HPC Workloads

    pdf

  7. 2025

  8. SC'25 Gordon Bell Finalist · Climate

    AERIS: Argonne Earth Systems Model for Reliable and Skillful Predictions

    Väinö Hatanpää, Eugene Ku, Jason Stock, Murali Emani, Sam Foreman, Chunyong Jung, Sandeep Madireddy, Tung Nguyen, Varuni Sastry, Ray A. O. Sinurat, Huihuo Zheng, Sam Wheeler, Troy Arcomano, Venkatram Vishwanath, Rao Kotamarthi

    Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis

    pdf·press 1·press 2·press 3·press 4·press 5

  9. EuroSys'25

    Heimdall: Optimizing Storage I/O Admission with Extensive Machine Learning Pipeline

    Daniar H. Kurniawan, Rani Ayu Putri, Peiran Qin, Kahfi S. Zulkifli, Ray A. O. Sinurat, Janki Bhimani, Sandeep Madireddy, Achmad Imam Kistijantoro, Haryadi S. Gunawi

    Proceedings of the 20th edition of EuroSys

    pdf

  10. 2023

  11. Manuscript

    StorRep: Storage Research Experiment Patterns on Chameleon Cloud and Trovi

    Ray A. O. Sinurat*, Yuyang Huang*, Nanqinqin Li, Mark Powers, Michael Sherman, Kate Keahey, Haryadi S. Gunawi

    Manuscript Ready.

    pdf·slides·press 1·press 2·press 3

  12. 2022

  13. MLFS'22

    Towards Continually Learning Application Performance Models

    Ray A. O. Sinurat, Anurag Daram, Haryadi S. Gunawi, Robert B. Ross, Sandeep Madireddy

    Workshop on ML for Systems at NeurIPS

    pdf·poster

  14. IEEE CLOUD'22

    Layered And Uniform Contention Mitigation Capabilities For Cloud Storage

    Meng Wang, Cesar A. Stuardo, Daniar H. Kurniawan, Ray A. O. Sinurat, Haryadi S. Gunawi

    Proceedings of the 15th IEEE International Conference on Cloud Computing

    pdf

  15. 2021

  16. TR'21

    Notification and Prediction of Heap Management Pauses in Managed Languages for Latency Stable Systems

    Daniar H. Kurniawan, Cesar A. Stuardo, Ray A. O. Sinurat, and Haryadi S. Gunawi

    University of Chicago Technical Report

    pdf

  17. *The authors contribute an equal amount of work and are sorted alphabetically based on their first names.
02

Service

Where I show up outside of writing papers.

Program Co-Chair
PERMAVOST'26
Student Committee
BoF Reproducibility Hackathon FAST'23
Artifact Evaluation
OSDI'24 · ATC'24
Mentoring (UCSC OSPO / GSoC)
2024 · 2023
03

Teaching

University of Chicago.

Systems Programming IICMSC 14400
Winter 2024, 2026
Operating SystemsCMSC 23000
Fall 2021 · Spring 2023 · Fall 2023–2025
SYAIR-2025 Online Research PreparationADMN 30100
Winter 2025, Spring 2025
Topics in Operating SystemsCMSC 332
Spring 2023
Introduction to Computer SystemsCMSC 15400
Fall 2022
04

Open Source

Projects I help maintain.

05

Elsewhere