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Center

Our Team

The people behind the Gnosis Research Center

117 people

Faculty

Dr. Xian-He Sun
University Distinguished Professor & Ron Hochsprung Endowed Chair
Founding Director
IEEE Fellow. Creator of the Sun-Ni Law and C-AMAT framework. Editor-in-Chief, IEEE Transactions on Parallel and Distributed Systems.
Parallel and Distributed ProcessingMemory and I/O SystemsData-Centric ComputingPerformance Evaluation
Dr. Anthony Kougkas
Associate Research Professor, Illinois Tech
Guest Research Faculty, Argonne National Lab
Co-Founder & Executive Director
High-performance I/O and agentic software for research workflows. Architect of IOWarp and CLIO, Hermes, LABIOS, and ChronoLog. Karsten Schwan Best Paper (HPDC'19), CCGrid Best Paper (2021). General Chair, SSDBM 2026.
Agentic AI for SystemsContext EngineeringParallel and Distributed I/OHPC Storage Systems
Dr. Jaime Cernuda Garcia
Assistant Research Professor
Developer of HFlow, Hades, HStream, and Jarvis. Streaming data systems, hierarchical storage, and HPC deployment infrastructure.
Streaming SystemsHierarchical StorageData FlowHPC Deployment
Dr. Luke Logan
Assistant Research Professor
Developer of LabStor, MegaMmap, and pMEMCPY. Programmable distributed storage and heterogeneous memory systems.
Heterogeneous StorageI/O OptimizationPersistent MemoryDistributed Systems
Dr. Xiaoyang Lu
Assistant Research Professor
Memory architecture and processing-in-memory research. Cache optimization for concurrent workloads.
Computer ArchitectureMemory SystemsProcessing-in-MemoryCache Optimization
Dr. Bogdan Nicolae
Computer Scientist, Argonne National Lab
Assistant Research Professor, Illinois Tech
DOE Early Career Award (2020). Fault tolerance, resilience, and HPC-AI convergence at extreme scale on ANL Aurora.
Distributed SystemsResilienceCloud ComputingDeep Learning I/O

Technical Staff

Dr. Kun Feng
Research Software Engineer
HPC StorageI/O BufferingData ManagementSoftware Engineering
Joe Lee
Joe Lee
Software Engineer
HDF5Data Management
1 project

Researchers

Keith Bateman
Keith Bateman
PhD Candidate
HPCDistributed StorageTask SystemsData Management for AI
12 pubs8 projects
Neeraj Rajesh
Neeraj Rajesh
PhD Candidate
Parallel and Distributed SystemsHPCML-Assisted SystemsAI for I/O Optimization
14 pubs8 projects
Jie Ye
Jie Ye
PhD Candidate
Distributed StorageParallel and Distributed SystemsLLM/DNN Inference OptimizationLLM KV Cache management
16 pubs4 projects
Izzet Yildirim
Izzet Yildirim
PhD Candidate
HPCDistributed StorageI/O CharacterizationI/O Bottleneck Detection
13 pubs4 projects
Vadim Biryukov
Vadim Biryukov
PhD Candidate
System memory architectureMemory hierarchy optimizationHardware prefetchersComputing systems
1 pub1 project
Hua Xu
Hua Xu
PhD Candidate
HPCDistributed StorageMetadata Management
5 pubs3 projects
Shazzadul Islam
Shazzadul Islam
PhD Student
AI-Driven Scientific WorkflowsModel Context Protocol (MCP) for HPCAgentic Systems for Scientific ComputingHigh-Performance Computing
3 pubs2 projects
Alexander Ichetovkin
Alexander Ichetovkin
PhD Student
1 project
Anna Monso Rodriguez
Anna Monso Rodriguez
MS Student
Multi-Agent SystemsObservabilityLog Storage
Shivalika Chaudhary
Shivalika Chaudhary
Summer Resident (2025)
Distributed SystemsLog Storage
1 project

Visiting Scholars

Dr. Charalampos (Harry) Agiropoulos
Dr. Charalampos (Harry) Agiropoulos
Assistant Professor
Computational FinanceComputational EconometricsHPC

IIT Collaborators

Faculty and researchers across Illinois Tech institutes partnering with GRC on interdisciplinary projects.

Dr. Behzad Imanian
Dr. Behzad Imanian
Research Associate Professor & Director, HTS Core
Institute for Food Safety and Health (IFSH)

External Collaborators

Project partners from national laboratories, universities, and research organizations.

Dr. Hariharan Devarajan
Dr. Hariharan Devarajan
Computer Scientist
Lawrence Livermore National Laboratory
Dr. Ana Gainaru
Dr. Ana Gainaru
Research Scientist
Los Alamos National Laboratory
Dr. Franck Cappello
Dr. Franck Cappello
Senior Computer Scientist
Argonne National Laboratory
Dr. Gerd Heber
Dr. Gerd Heber
Executive Director
The HDF Group
Dr. Huihuo Zheng
Dr. Huihuo Zheng
Computer Scientist
Argonne National Laboratory
Dr. Jacob Hochhalter
Dr. Jacob Hochhalter
Associate Professor
University of Utah
Dr. Jay Lofstead
Dr. Jay Lofstead
Principal Member of Technical Staff
Sandia National Laboratories
Dr. Kathryn Mohror
Dr. Kathryn Mohror
Director, CASC
Lawrence Livermore National Laboratory
Dr. Kyle Chard
Dr. Kyle Chard
Research Associate Professor
University of Chicago
Dr. Luanzheng Guo
Dr. Luanzheng Guo
Computer Scientist
Pacific Northwest National Laboratory
Dr. Manish Parashar
Dr. Manish Parashar
Executive Director, SCI Institute
University of Utah
Dr. Nathan Tallent
Dr. Nathan Tallent
Senior Computer Scientist & Team Leader
Pacific Northwest National Laboratory
Dr. Nikoli Dryden
Dr. Nikoli Dryden
Computer Scientist
Lawrence Livermore National Laboratory
Dr. Scott Klasky
Dr. Scott Klasky
Distinguished Scientist
Oak Ridge National Laboratory
Dr. Suren Byna
Dr. Suren Byna
Professor
Ohio State University
Dr. Venkatram Vishwanath
Dr. Venkatram Vishwanath
Computer Scientist
Argonne National Laboratory
Dr. Vivek Srikumar
Dr. Vivek Srikumar
Associate Professor
University of Utah

Alumni

Graduates of the Gnosis Research Center and, before 2023, the SCS Lab, now working across academia, national laboratories, and industry.

Doctoral Alumni20

14 pubs

FlowForge: Taming the Log-Data Storm in Distributed Computing

Assistant Research ProfessorIllinois Institute of Technology
Data Streaming EnginesActive StorageI/O Reproducibility
Luke LoganPhD, 2025
15 pubs

RECOMBINANT: A Composable, Extensible, Intelligent I/O Platform for Integrated High-Performance I/O Management

Assistant Research ProfessorIllinois Institute of Technology
Persistent Memory I/ODistributed StorageMemory-Mapped Storage
Xiaoyang LuPhD, 2024
13 pubs

Utilizing Concurrent Data Accesses for Data-driven and AI Applications

Assistant Research ProfessorIllinois Institute of Technology
Concurrency-Aware CachingMemory Hierarchy Modeling
31 pubs

Towards a Self-programmable Storage Solution in Extreme-scale Environments

Computer ScientistLawrence Livermore National Laboratory
Hierarchical BufferingI/O BenchmarkingDeep Learning I/O
Kun FengPhD, 2020
11 pubs

A Multi-Level Data Integration Approach for the Convergence of HPC and Big Data Systems

Senior HPC EngineerIllinois Institute of Technology
Decoupled ExecutionI/O TracingScientific Data Processing
DaYu
Nan ZhangPhD, 2020
2 pubs
GPGPU Memory PerformanceDisaggregated Memory
64 pubs

Accelerating I/O Using Data Labels: A Contention-Aware, Multi-Tiered, Scalable, and Distributed I/O Platform

Associate Research ProfessorIllinois Institute of Technology
Multi-Tiered I/O BufferingLabel-Based I/OStorage Semantics
Ning LiuPhD, 2017
9 pubs
Computer ScientistArgonne National Laboratory
HPC Network SimulationFat-Tree ModelingHadoop/YARN Systems
Xu YangPhD, 2017

Cooperative Batch Scheduling for HPC Systems

Xi YangPhD, 2016
21 pubs

An Integrated Data Access System for Big Computing

HPC Job SchedulingHadoop/HDFS OptimizationDragonfly Networks
Yanlong YinPhD, 2014
24 pubs

Application-Aware Optimizations for Big Data Access

Parallel I/O OptimizationPattern-Aware Data LayoutKey-Value Stores
Hui JinPhD, 2012

System Support for Resilience in Large-Scale Parallel Systems: From Checkpointing to MapReduce

Technical StaffOracle Research
Fault ToleranceCheckpointingMapReduce
Yong ChenPhD, 2009

A Hybrid Data Prefetching Architecture for Data-Access Efficiency

ProfessorTexas Tech University
Data PrefetchingParallel I/OHPC Storage
Cong DuPhD, 2008

Dynamic Virtual Private Environment in a Shared Cyberspace

Principal Software EngineerEMC, BRS Division
VirtualizationGrid ComputingDistributed Systems
Ming WuPhD, 2006

System Support of Quality of Service in Shared Network Environments

Senior Software EngineerFermi National Accelerator Laboratory
QoSNetwork SystemsShared Computing
Surendra BynaPhD, 2006

Server-based Data Push Architecture for Data Access Performance Optimization

Professor of Computer ScienceOhio State University
Data Push ArchitectureParallel I/OScientific Data Management
Vijay K. GurbaniPhD, 2004

Service-Oriented Computing: Enabling Cross-Network Services between the Internet and the Telecommunications Network

Distinguished Member of Technical StaffLucent Technologies / Bell Labs Innovations
Service-Oriented ComputingInternet Telecommunications
Kasidit ChanchioPhD, 2000

Efficient Checkpointing in Heterogeneous Collaborative Environments: Representation, coordination, and Automation

Kirk CameronPhD, 2000

Empirical and Statistical Application Modeling Using On-Chip Performance Monitors

Yu ZhuangPhD, 2000

Stable, Globally Non-iterative, Non-overlapping Domain Decomposition Methods for the Numerical Solution of Parabolic Evolutionary Systems

Former Associates10

  • Dawei WangPostdoctoral researcher

    Ph.D. in Computer Science, Institute of Computing Technology, Chinese Academy of Sciences, Fall 2009

    Parallel computer architecture, large scale interconnection networks, architectural simulation and emulation, reconfigurable computing, embedded systems

  • Huaiming SongPostdoctoral research associate

    Ph.D. in Computer Science, Institute of Computing Technology, Chinese Academy of Sciences, 2009

    Large scale data intensive systems, including data organization, query processing, and I/O performance optimization

  • Zhibin FangPostdoctoral researcher

    Ph.D. in Computer Science, Institute of Computing Technology, Chinese Academy of Sciences, Fall 2007

    Parallel computer architecture, performance analysis and optimization of memory systems and interconnection networks, server push architecture

  • Yuhang LiuPostdoctoral researcher

    Ph.D. in computer architecture, Beihang University, 2013

    Scalable parallel and distributed processing, memory systems, performance evaluation and optimization

  • Shuibing HePostdoctoral researcher

    Ph.D. in Computer Science, Huazhong University of Science and Technology, December 2009

    Parallel computer architecture, distributed storage and file systems, embedded systems

    Later Tenured Full Professor, Zhejiang University

  • Wu ZhangSenior research associate · July 2000 to October 2001

    Professor and director of the Institute of Applied Mathematics, Xi'an Jiaotong University

    Numerical algorithms and CFD

  • Xingfu WuPostdoctoral researcher · November 1998 to November 1999

    B.S. 1988 and M.S. 1993 Beijing Normal University, Ph.D. March 1997 Beijing University of Aeronautics and Astronautics

    Performance evaluation, prediction and visualization of parallel systems, parallel programming environments and tools, algorithmical logic, mathematical logic, parallel genetic algorithms

    Later Research faculty, Department of Computer Science, Texas A&M University (as stated by the old page)

  • Jibing LiResearch associate

    M.S. in Computer Science, Illinois Tech, 2011

    Parallel file systems and data access patterns

  • Carlos Sanchez GomezResearch associate

    M.S. in Computer Science, 2011

    L2 cache memory performance

  • Mo ZouVisiting student

    Graph applications, computer architecture, memory hierarchy