DISCOS - Data Intensive Computing and AI Systems Laboratory

2024

Conference/Workshop

Fault-Tolerant Deep Learning Cache with Hash Ring for Load Balancing in HPC Systems Seoyeong Lee, Awais Khan, Yoochan Kim, Junghwan Park, Soon Hwang, Jae-Kook Lee, Taeyoung Hong, Christopher Zimmer, Youngjae Kim In Proceedings of the 9th International Parallel Data Systems Workshop (PDSW) (2024), Atlanta, GA, USA, November 17, 2024. [talk]
Towards A Unified Garbage Collection Strategy in ZNS Key-Value Store File Systems Using Same-Victim GC Hamin Hwangbo, Joseph Ro, Sungjin Byeon, Safdar Jamil, Junyoung Han, Jooyoung Hwang, Youngjae Kim, In Proceedings of the IEEE Int'l Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS) (2024), Krakow, Poland, October 21-23, 2024. [talk] [BK Plus Computer Science IF=2][KIISE Excellence]
Evaluation of Erasure Coding and Opportunistic Offloading Algorithms using DPU in Distributed Storage Systems Junghyun Ryu, Hongsu Byun, Myungcheol Lee, Jinchun Choi, Youngjae Kim, (poster) In Proceedings of the 13th IEEE Non-Volatile Memory Systems and Applications Symposium (NVMSA) (2024), Sokcho, South Korea, August 21-23, 2024. [poster]
BandSlim: A Novel Bandwidth and Space-Efficient KV-SSD with an Escape-from-Block Approach Junhyeok Park, Chang-Gyu Lee, Soon Hwang, Soonyeal Yang, Jungki Noh, Woosuk Chung, Junghee Lee, Youngjae Kim In Proceedings of the 53rd International Conference on Parallel Processing (ICPP) (2024), Gotland, Sweden, August 12-15, 2024. [talk] [BK Plus Computer Science IF=2][KIISE Excellence]
Addressing I/O Bottleneck For Large-Scale Deep Learning Applications on HPC Systems Awais Khan, Soon Hwang, Chris Zimmer, Sarp Oral, Youngjae Kim, Workshop on Distributed Supercomputing (2024), Cocoa Beach, FL, USA, March 11-14, 2024.
Ensuring Compaction and Zone Cleaning Efficiency through Same-Zone Compaction in ZNS Key-Value Store Sungjin Byeon, Joseph Ro, Jun young Han, Jeong-Uk Kang, Youngjae Kim In Proceedings of the IEEE Symposium on Massive Storage Systems and Technologies (MSST) (2024), Santa Clara, CA, USA, June 3-7, 2024. [talk] [BK Plus Computer Science IF=1][KIISE Excellence]
DeepVM: Integrating Spot and On-Demand VMs for Cost-Efficient Deep Learning Clusters in the Cloud Yoochan Kim, Kihyun Kim, Yonghyeon Cho, Jinwoo Kim, Awais Khan, Ki-Dong Kang, Baik-Song An, Myung-Hoon Cha, Hong-Yeon Kim, Youngjae Kim In Proceedings of the IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGRID) (2024), Philadelphia, May, 2024. [talk] [BK Plus Computer Science IF=1][KIISE Excellence]

Journal Publications

An Analytical Model-based Capacity Planning Approach for Building CSD-based Storage Systems, Hongsu Byun, Safdar Jamil, Jungwook Han, Sungyong Park, Myungcheol Lee, Changsoo Kim, Beongjun Choi, Youngjae Kim, ACM Transactions on Embedded Computing Systems (ACM TECS) (2023), Vol.23, Issue 6, NO.92, pp.1-25, September 2024.
Optimizing Multi-level Checkpointing for Distributed Deep Learning Workloads on Cloud Spot VM Clusters, Yonghyeon Cho, Yoochan Kim, Kihyun Kim, Jinwoo Kim, Hong-Yeon Kim, Youngjae Kim, IEEE Access (ACCESS) (2024), Vol. 12, pp. 116891-116904, August 2024.
Provisioning CSD-based Storage Systems with Erasure-Coding Offloaded to the CSD Hongsu Byun, SafdarJamil, Junghyun Ryu, Sungyong Park, Myungcheol Lee, Sung-Soon Park, Youngjae Kim Journal of Semiconductor Technology and Science (JSTS) (2024), Vol. 24, no. 1, pp.273-282, February 2024.
OctoFAS: A Two-Level Fair Scheduler for Enhancing Fairness in Network-based Key-Value Storage, Y. Park, J. Park, J. Park, A. Khan, K. Kim, S. Park, Y. Kim, MDPI Electronics (Electronics) (2024), Vol.13, No. 3, February 2024.

2023

Conference/Workshop

KV-CSD: A Hardware-Accelerated Key-Value Store for Data-Intensive Applications Y. Park, Q. Zeng, D. Manno, S. Yang, J. Lee, D. Bonnie, B. Settlemyer, Y. Kim, W. Chung, G. Grider, In Proceedings of the IEEE Int'l Conference on Cluster Computing (Cluster) (2023), Santa Fe, NM, October, 2023. [BK Plus Computer Science IF=1][KIISE Excellence]
OctoKV: An Agile Network-based Key-Value Storage System with Robust Load Orchestration Y. Park, J. Park, A. Khan, J. Park, W. Chung, Y. Kim, In Proceedings of the IEEE Int'l Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS) (2023), Stony Brook, NY, USA, October 16-18, 2023. [BK Plus Computer Science IF=2][KIISE Excellence]
A Free-Space Adaptive Runtime Zone-Reset Algorithm for Enhanced ZNS Efficiency S. Byeon, J. Ro, S. Jamil, J-U. Kang, Y. Kim, In Proceedings of the 15th USENIX Workshop on Hot Topics in Storage and File Systems (ACM HotStorage) (2023), Boston, July 9, 2023.
Iterator Interface Extended LSM-tree-based KVSSD for Range Queries S. Lee, C. Lee, D. Min, I. Park, W. Chung, A. Sivasubramaniam, Y. Kim, In Proceedings of the 16th ACM International Systems and Storage Conference (SYSTOR) (2023), Haifa, Israel, June 2023. [talk] [KIISE Excellence]
MFence: Defending Against Memory Access Interference in a Disaggregated Cloud Memory Platform J. Lee, Y-W. Jung, S. Lee, S. Jamil, S. Park, K-W. Koh, H. Kim, K. Kim, Y. Kim, In Proceedings of the 38th ACM/SIGAPP Symposium On Applied Computing (ACM SAC) (2023) (Operating Systems Track), Tallinn Estonia, March 27-31, 2023. [talk] [BK Plus Computer Science IF=1]

Journal Publications

Empirical Analysis of Disaggregated Cloud Memory on Memory Intensive Applications, Y. Jeong, G. Jung, K. Park, Y. Kim, S. Park, Journal of Semiconductor Technology and Science(JSTS) (2023), Vol. 23, no. 5, pp.273-282, Oct. 2023.
A Multi-Tenant Key-Value SSD with Secondary Index for Search Query Processing and Analysis, D. Min, K. Kim, C. Moon, A. Khan, S. Lee, C. Youn, W. S. Chung, Y. Kim, ACM Transactions on Embedded Computing Systems(ACM TECS) (2023), Vol.22, Issue 4, No. 65, pp. 1-27, July 2023.
Preemptive Zone Reset Design within Zoned Namespace SSD Firmware, S. Jung, S. Lee, J. Han, Y. Kim, MDPI Electronics (Electronics) (2023), Vol.12, No. 4, February 2023.

2022

Conference/Workshop

BTS: Exploring Effects of Background Task-Aware Scheduling for Key-Value CSDs Y. Park, C-G. Lee, S-J. Lee, Y. Kim, In Proceedings of the 7th International Parallel Data Systems Workshop (PDSW) (2022), held in conjunction with SC22, Dallars, TX, November 14, 2022. [talk]
DENKV: Addressing Design Trade-offs of Key-value Stores for Scientific Applications S. Jamil, A. Khan, K. Kim, Y. Kim, In Proceedings of the 7th International Parallel Data Systems Workshop (PDSW) (2022), held in conjunction with SC22, Dallars, TX, November 14, 2022. [talk]
Compaction-Aware Zone Allocation for LSM based Key-Value Store on ZNS SSDs H-R. Lee, C-G. Lee, S-J. Lee, Y. Kim, In Proceedings of the 14th USENIX Workshop on Hot Topics in Storage and File Systems (ACM HotStorage) (2022), Virtual June 27-28, 2022. [talk]
DeNOVA: Deduplication Extended NOVA File System H-J. Kwon, Y. Cho, A. Khan, Y. Park, Y. Kim, (To Appear) In Proceedings of the 36th IEEE International Parallel and Distributed Processing Symposium (IPDPS) (2022), Lyon, France, May 30-June 3, 2022. [talk] [BK Plus Computer Science IF=2] [KIISE Excellence]
Exploring Data Deduplication in LSM Tree-based Key-Value Stores, S. Jamil, A. Khan, Y. Kim, (Work-In-Progress) USENIX Conference on File and Storage Technologies (FAST) (2022), San Jose, CA, February, 2022. [talk] [video]

Journal Publications

Future-based Persistent Spatial Data Structure for NVM-based Manycore Machines , A. Salam, S. Jamil, S. Jung, S. Park, Y. Kim, IEEE Access (Access) (2022), (Accepted).
Scalable NUMA-aware Persistent B+-tree for Non-Volatile Memory Devices, S. Jamil, A. Salam, A. Khan, B. Burgstaller, S. Park, Y. Kim, Cluster Computing: The Journal of Networks, Software Tools and Applications, (Accepted).
A Content-based Ransomware Detection and Backup Solid-State Drive for Ransomware Defense, D. Min, Y. Ko, J. Lee, Y. Kim, IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (TCAD) (2022), Vol. 41, No. 7, pp. 2038-2051, July 2022.

2021

Conference/Workshop

Is Data Migration Evil in the File System?, J. Han, H. Byun, H. Kown, S. Park and Y. Kim, In Proceedings of the International Workshop on Autonomic Management of Grid and Cloud Computing (AMGCC) (2021), Washington DC, USA, September 27, 2021. (Acceptance Rate: 8/11 = 72.0%)
Towards Scalable Manycore-aware Persistent B+-Tree for Efficient Indexing in Cloud Environment, S. Jamil, A. Khan, B. Bernd and Y. Kim, In Proceedings of the International Workshop on Autonomic Management of Grid and Cloud Computing (AMGCC) (2021), Washington DC, USA, September 27, 2021. (Acceptance Rate: 8/11 = 72.0%)
Isolating Namespace and Performance in Key-Value SSDs for Multi-tenant Environments, D. Min, Y. Kim, In Proceedings of the 13th USENIX Workshop on Hot Topics in Storage and File Systems (ACM HotStorage) (2021), Virtual, July 27-28, 2021. (Acceptance Rate: 15/40 = 37.5%) [talk]
Enabling Manycore Scalability in F2FS Metadata for unlink() Operation, S. Hwang, C.-G. Lee, Y. Kim, In Proceedings of the 14th ACM International Systems and Storage Conference - Poster (SYSTOR-Poster) (2021), Virtual, June, 2021. (Acceptance Rate: 10/18 = 55.6%, 10 papers accepted out of 18 submitted) [poster]
Concurrent File Metadata Structure using Readers-Writer Lock, C.-G. Lee, S. Noh, H. Kang, S. Hwang, Y. Kim, In Proceedings of the 36th ACM/SIGAPP Symposium On Applied Computing (SAC) (2021), (Operating Systems Track), March 22-26, 2021. [talk] [BK Plus Computer Science IF=1]
GPUKV: An Integrated Framework with KVSSD and GPU through P2P Communication Support, M.-G. Jeong, C.-G. Lee, D.-G. Park, S. Park, J. Noh, W. Chung, K. Park, Y. Kim, In Proceedings of the 36th ACM/SIGAPP Symposium on Applied Computing (SAC) (2021), (Operating Systems Track), March 22-26, 2021. [talk] [BK Plus Computer Science IF=1]
An Analysis of System Balance and Architectural Trends Based on Top500 Supercomputers, A. Khan, H. Sim, S.-S. Vazhkudai, A. Butt, Y. Kim, In Proceedings of the International Conference on High Performance Computing in Asia-Pacific Region (HPC Asia) (2021), January 20-22, 2021.

Journal Publications

MOSIQS: Persistent Memory Object Storage with Metadata Indexing and Querying for Scientific Computing, A. Khan, H. Sim, S.-S. Vazhkudai, Y. Kim, IEEE Access (Access) (2021), Vol.09 pp. 85217-85231, June 2021.
A Probabilistic Machine Learning Approach to Scheduling Parallel Loops with Bayesian Optimization, K.-R. Kim, Y. Kim, S. Park, IEEE Transactions on Parallel and Distributed Systems (TPDS) (2020), Vol. 32, No. 7, pp. 1815-1827, July 2021.
A GPU Scheduling Framework to Accelerate Hyper-Parameter Optimization in Deep Learning Clusters, J. Son, Y. Yoo, K.-R. Kim, Y. Kim, K. Lee, S. Park, MDPI Electronics (Electronics) (2021), Vol.10, No. 3, February 2021.
Parallelizing Shared File I/O operations of NVM File System for Manycore Servers, J-H. Kim, Y. Kim, S. Jamil, C.-G. Lee, S. Park, IEEE Access (Access) (2021), Vol.09, pp. 24570-24585, January 2021.

2020

Conference/Workshop

Persistent Memory Object Storage and Indexing for Scientific Computing, A. Khan, H. Sim, S.-S. Vazhkudai, J. Ma, M. Hoon, Y. Kim, In Proceedings of the Memory Centric High Performance Computing (MCHPC) (2020), Virtual Event, November 11, 2020. [talk]
A NUMA-aware NVM File System Design for Manycore Server Applications, J.-H. Kim, Y. Kim, S. Jamil, S. Park, (short paper) In Proceedings of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS) (2020), Nice, France, November 17-19, 2020. (Acceptance Rate: 27.0%) [talk] [BK Plus Computer Science IF=2]
DISKSHIELD: A Data Tamper-Resistant Storage for Intel SGX, J. Ahn, J. Lee, Y. Ko, D. Min, J. Park, S. Park, Y. Kim, In Proceedings of the 15th ACM ASIA Conference on Computer and Communications Security (ACM ASIACCS) (2020), Taipei, Taiwan, October 5-9, 2020. (Acceptance Rate: 67/308=21.7%) [talk] [BK Plus Computer Science IF=1]
ScaleML: Machine Learning based Heap Memory Object Scaling Prediction, J. Park, S. Jamil, A. Khan, S. Lee, Y. Kim, In Proceedings of the IEEE Non-Volatile Memory Systems and Applications (NVMSA) (2020), 19-21 August 2020. [talk]
GPUKV: Towards a GPU-Driven Computing on Key-Value SSD, M.-G. Jeong, C.-G. Lee, D. Park, S. Park, Y. Kim, J. Noh, W. Chung, K. Park, (poster) The 12th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage) (2020), Boston, MA, July 13-14, 2020. [talk]
SGX-SSD: A Policy-based Versioning SSD with Intel SGX, J. Ahn, S. Lee, J. Lee, Y. Ko, D. Min, J. Lee, Y. Kim, (poster) The 12th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage) (2020), Boston, MA, July 13-14, 2020. [arXiv] [talk] [video]

Journal Publications

A Content Fingerprint-based Cluster-wide Inline Deduplication for Shared-Nothing Storage Systems, A. Khan, P. Hamandawana, Y. Kim, IEEE Access (2020), Vol (8), pp. 0 209163-209180, November 2020.
PhantomFS-v2: Dare You to Avoid This Trap, J. Choi, H. Lee, Y. Park, H.-K. Kim, J. Lee, Y. Kim, G. Lee, S.-W. Shim, T. Kim, IEEE Access (2020), Vol 8, pp. 198285-198300, October 2020.
An Integrated Indexing and Search Service for Distributed File Systems, H. Sim, A. Khan, S. Vazhkudai, S. Lim, A. Butt, Y. Kim, IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS) (2020), Vol.31, No. 10, pp. 2375-2391, October 2020.
Low-overhead Dynamic Sharing of Graphics Memory Space in GPU Virtualization Environments, M. Gu, Y.-H. Park, Y. Kim, S. Park, Cluster Computing: The Journal of Networks, Software Tools and Applications, Vol.23, No. 3, pp. 2167-2178, September 2020.
GARET: Improving Throughput using Gas Consumption-aware Relocation in Ethereum Sharding Environments, S. Woo, J. Song, S. Kim, Y. Kim, S. Park, Cluster Computing: The Journal of Networks, Software Tools and Applications, Vol.23, No. 3, pp. 2235-2247, September 2020.
Crocus: Enabling Computing Resource Orchestration for Inline Cluster-wide Deduplication on Scalable Storage Systems, P. Hamandawana, A. Khan, C.-G. Lee, S. Park, Y. Kim, IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS) (2020), Vol. 31, No. 8, pp. 1740-1753, August 2020.
Optimizing Heap Memory Object Placement in the Hybrid Memory System with Energy Constraints, T. Kim, S. Jamil, J. Park, Y. Kim, IEEE Access (2020), Vol.08, pp. 130323-130339, July 2020.

2019

Conference/Workshop

iLSM-SSD: An Intelligent LSM-tree based Key-Value SSD for Data Analytics, C.-G. Lee, H. Kang, D. Park, S. Park, Y. Kim, J. Noh, W. Chung, K. Park, In Proceedings of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS) (2019), Rennes, France, October 22-25, 2019. (Acceptance Rate: 29/122 = 23.8%) [BK Plus Computer Science IF=2]
Towards Robust Data-driven Parallel Loop Scheduling Using Bayesian Optimization, K. Kim, Y. Kim, S. Park, (short paper) In Proceedings of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS) (2019), Rennes, France, October 22-25, 2019. (Acceptance Rate: 32.0%) (39 papers accepted for 29 regular and 10 short papers combined out of 122 submissions) [BK Plus Computer Science IF=2]
pNOVA: Optimizing Shared File I/O Operations of NVM File System on Manycore Servers, J. Kim, J. Kim, H. Kang, C.-G. Lee, S. Park, Y. Kim, The 10th ACM SIGOPS Asia-Pacific Workshop on Systems (APSys) (2019), Hangzhou, China, August 19-20, 2019. (Acceptance Rate: 15/35 = 42.8%)
Write Optimization of Log-structured Flash File System for Parallel I/O on Manycore Servers, C.-G. Lee, H. Byun, S. Noh, H. Kang, Y. Kim, In Proceedings of the 12th ACM International Systems and Storage Conference (SYSTOR) (2019), Haifa, Israel, June 3-5, 2019. (Acceptance Rate: 14/44 = 31.8%, 14 full papers accepted out 44 submissions) [KIISE Excellence]
Write Optimization of Log-structured Flash File System for Parallel I/O on Manycore Servers, S. Noh, Y. Kim, (poster) 12th ACM International Systems and Storage Conference (SYSTOR) (2019), Haifa, Israel, June 3-5, 2019.
Using Range Locking for Concurrent Shared File I/O in NOVA on Manycore Servers, J.-H Kim, J.-W Kim, H. Kang, C. Lee, S. Park, Y. Kim, 12th ACM International Systems and Storage Conference (SYSTOR) (2019), Haifa, Israel, June 3-5, 2019.
Gas Consumption-aware Dynamic Load Balancing in Ethereum Sharding Environments, S. Kim, J. Song, S. Woo, Y. Kim, S. Park, In Proceedings of the International Workshop on Autonomic Management of Grid and Cloud Computing (AMGCC) (2019), Umea, Sweden, June 20, 2019.
Amoeba: An Autonomous Backup and Recovery SSD for Ransomware Defense, D. Min, J. Park, J. Ahn, R. Walker, J. Lee, S. Park, Y. Kim, International Symposium on High Performance Computer Architecture (HPCA) (2019), Washington D.C., February 2019. [talk] Invited to present at the special session of 2018 best of CAL in HPCA 2019

Journal Publications

SCISPACE: A Scientific Collaboration Workspace for GeoDistributed HPC Data Centers, A. Khan, T. Kim, H. Byun, Y. Kim, Future Generation Computer Systems (FGCS), Vol 101, December 2019, pp. 398-409.
iStore: Towards the Optimization of Federation File Systems, A. Khan, M. Attique, Y. Kim, IEEE Access (2019), Vol. 7, No. 1, pp. 65652-65666, December 2019.
A Programmable Shared-Memory System for an Array of Processing-In-Memory Devices, S. Lee, H. Sim, Y. Kim, S. Vazhkudai, Cluster Computing: The Journal of Networks, Software Tools and Applications, 22(2): 385-398, June 2019.
Understanding the Performance of Storage Class Memory Filesystems in the NUMA architecture, J. Kim, Y. Kim, A. Khan, S. Park, Cluster Computing: The Journal of Networks, Software Tools and Applications, 22(2): 347-360, June 2019.
FTLADS: Fault-Tolerant Object-Logging based Big Data Transfer System using Layout-Aware Data Scheduling, K. Preethika, T. Kim, J.-H. Um, K. Park, S. Atchley, Y. Kim, IEEE Access (2019), Vol. 7, No. 1, pp. 37448-37462, March 2019.
RFTL: Improving Performance of Selective Caching-based Page-level FTL through Replication, R. Mativenga, J. Paik, Y. Kim, T. Chung, J. Lee, Cluster Computing: The Journal of Networks, Software Tools and Applications, Vol. 22, No. 1, pp. 25-41, March 2019.
An Analysis Workflow-Aware Storage System for Multi-Core Active Flash Arrays, H. Sim, G. R. Vallee, Y. Kim, S. Vazhkudai, D. Tiwari, A. Butt, IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS) (2019), Vol. 30, No. 2, pp. 271-285, February 2019.

2018

Conference/Workshop

A Robust Fault-Tolerant and Scalable Cluster-wide Deduplication for Shared-Nothing Storage Systems, A. Khan, C.-G. Lee, P. Hamandawana, S. Park, Y. Kim, (short paper) In Proceedings of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS) (2018), Milwaukee, Wisconsin, USA, September 25-28, 2018.[talk] [BK Plus Computer Science IF=2]
DymGPU: Dynamic Memory Management for Sharing GPUs in Virtualized Clouds, Y. Park, M. Gu, S. Yoo, Y. Kim, S. Park, In Proceedings of the International Workshop on Autonomic Management of Grid and Cloud Computing (AMGCC) (2018), Trento, Italy, September 7, 2018.
EdgeStore: A Single Namespace and Resource-aware Federation File System for Edge Servers, A. Khan, M. Attique, Y. Kim, S. Park, B. Tak, In Proceedings of the IEEE International Conference on Edge Computing (EDGE) (2018), San Fancisco, CA, USA, July, 2018.
Employing NVM for Non-blocking Segment Cleaning in F2FS, C.-G. Lee, H. Byun, S. Park, Y. Kim, (poster) USENIX Conference on File and Storage Technologies (FAST) (2018), Oakland, CA, USA, February 2018.
Low-Cost Autonomous Backup Mechanism in SSD against Ransomware, J. Lee, D. Min, D. Park, S. Park, Y. Kim, (poster) USENIX Conference on File and Storage Technologies (FAST) (2018), Oakland, CA, USA, February 2018.
Tagged Consistency and Garbage Identification in Deduplication-enabled Storage Systems, A. Khan, C.-G. Lee, S. Park, Y. Kim, (poster) USENIX Conference on File and Storage Technologies (FAST) (2018), Oakland, CA, USA, February 2018.
blkCtrace: Lightweight Block I/O Layer Content Tracing on Linux, D. Park, Y. Kim, S. Park, J. Lee, (poster) USENIX Conference on File and Storage Technologies (FAST) (2018), Oakland, CA, USA, February 2018.

Journal Publications

Amoeba: An Autonomous Backup and Recovery SSD for Ransomware Defense, D. Min, D. Park, J. Ahn, R. Walker, J. Lee, S. Park, Y. Kim, IEEE Computer Architecture Letters (IEEE CAL) (2018), Vol. 17, No. 2, pp. 224-248, December 2018.
Async-LCAM: A Lock Contention Aware Messenger for Ceph Distributed Storage System, B. Jeong, A. Khan, S. Park, Cluster Computing: The Journal of Networks, Software Tools and Applications (2018), Vol. 22, pp. 373-384, July 2018.
NUMA-Aware Thread Scheduling for Big Data Transfers over Terabits Network Infrastructure, T. Kim, A. Khan, Y. Kim, P. Kasu, S. Atchley, Scientific Programming (SP)(2018), Vol. 2018, 8 pages, May 2018.

2017

Conference/Workshop

Accelerating the Data Deduplication Performance with GPU in Hybrid Storage Systems, P. Hamandawana, A. Khan, C.-G. Lee, S. Park, Y. Kim, (poster) PDSW-DISCS’17 (held in conjunction with SC’17), (2017), Denver, CO, USA, November, 2017.
NUMA-Aware Thread and Resource Scheduling for Terabit Data Movement, T. Kim, A. Khan, Y. Kim, S. Park, S. Atchley, (poster) PDSW-DISCS’17 (held in conjunction with SC’17), (2017), Denver, CO, USA, November, 2017.
TagIt: An Integrated Search and Discovery Service for File Systems, H. Sim, Y. Kim, S. S. Vazhkudai, G. R. Valle ́e, S.-H. Lim, A. R. Butt, In Proceedings of the ACM/IEEE International Conference on High Performance Computing, Networking, Storage and Analysis (SC) (2017), Denver, CO, USA, November, 2017. [BK Plus Computer Science IF=3]
Understanding Object-level Memory Access Patterns Across the Spectrum, X. Ji, C. Wang, N. El-Sayed, X. Ma, Y. Kim, S. S. Vazhkudai, W. Xue, D. Sanchez, In Proceedings of the ACM/IEEE International Conference on High Performance Computing, Networking, Storage and Analysis (SC) (2017), Denver, CO, USA, November, 2017. [BK Plus Computer Science IF=3]
ZonFS: A Storage Class Memory File System with Memory Zone Partitioning on Linux, J. Kim, J.-H. Kim, A. Khan, Y. Kim, S. Park, In Proceedings of the 5th International Workshop on Autonomic Management of High performance Grid and Cloud Computing (AMGCC) (2017), Tucson, AZ, USA, September, 2017.
Vulnerability Analysis of On-Chip Access-Control Memory, C. Chavda, E. Ahn, Y.-S. Chen, Y. Kim, K. Ganesh, J. Lee, In Proceedings of the 9th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage) (2017), Santa Clara, CA, USA, July 10-11, 2017.
A Programmable Shared-Memory System for an Array of Processing-In-Memory Devices, S. Lee, H. Sim, Y. Kim, S. Vazhkudai, (short paper) In Proceedings of the IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGRID) (2017), Madrid, Spain, May, 2017. [BK Plus Computer Science IF=1]

Journal Publications

FeSSD: A Fast Encrypted SSD Employing On-Chip Access-Control Memory, J. Lee, K. Ganesh, H.-J. Lee, Y. Kim, IEEE Computer Architecture Letters (IEEE CAL) (2017), Vol. 16, No. 2, pp. 115-118, December 2017.
LAWC: Optimizing Write Cache using Layout-Aware I/O Scheduling for All Flash Storage, K. Ganesh, Y. Kim, M. Debnath, S. Park, J. Lee, IEEE Transactions on Computer (IEEE TC) (2017), Vol. 66, No. 11, pp. 1890-1902, November 2017.
A Quantitative Model of Application Slow-Down in Multi-Resource Shared Systems, S.-H. Kim, Y. Kim, Performance Evaluation (PEVA) (2017), Vol. 108, pp. 32-47, February 2017.
Optimizing End-to-End Big Data Transfers over Terabits Network Infrastructure, Y. Kim, S. Atchley, G. R. Vallee, M. Lee, G. M. Shipman, IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS) (2017), Vol. 28, No. 01, pp. 188-201, January 2017.

2016

Conference/Workshop

Time Optimization Modeling for Big Data Placement and Analysis for Geo-Distributed Data Centers, A. Khan, M. Attique, T.-S. Chung, Y. Kim, (short paper) In Proceeding of the IEEE International Conference on Cluster Computing (Cluster) (2016), Taipei, Taiwan, September 2016.
Design and Analysis of Fault Tolerance Mechanisms for Big Data Transfers, P. Kasu, Y. Kim, S. Park, S. Atchley, G. R. Vallee, (short paper) In Proceeding of the IEEE International Conference on Cluster Computing (Cluster) (2016), Taipei, Taiwan, September 2016.
Minimizing CMT Miss Penalty in Selective Page-level Address Mapping Table, R. Mativenga, J.-Y. Paik, J. Lee, T.-S. Chung, Y. Kim, (short paper) In Proceeding of the IEEE International Conference on Cluster Computing (Cluster) (2016), Taipei, Taiwan, September 2016.
TagIt: An Integrated Search and Discovery Service for Extreme-Scale File Systems, H. Sim, Y. Kim, S. S. Vazhkudai, G. R. Vallee, S.-H. Lim, A. Butt, (poster) In Proceedings of the USENIX Annual Technical Conference (USENIX ATC) (2016), Denver, CO, USA, June 2016.
Synchronous Independent Write Cache: A Novel SSD-aware Write Cache for RAID, J. Lee, Y. Kim, K. Ganesh, J. Paik, (poster) Design Automation Conference (DAC) (2016), Austin, TX, USA, June 2016.

2015 and Earlier

Conference/Workshop

AnalyzeThis: An Analysis Workflow-Aware Storage System, H. Sim, Y. Kim, S. S. Vazhkudai, D. Tiwari, A. Anwar, A. Butt, L. Ramakrishnan, In Proceedings of the ACM/IEEE International Conference on High Performance Computing, Networking, Storage and Analysis (SC) (2015), Austin, TX, USA, November 2015. (Acceptance Rate: 79/358 = 22.0%) [BK Plus Computer Science IF=3]
AnalyzeThis: An Analysis Workflow-Aware Storage System, H. Sim, Y. Kim, S. S. Vazhkudai, D. Tiwari, A. Anwar, A. Butt, L. Ramakrishnan, (poster) USENIX Annual Technical Conference (USENIX ATC) (2015), Denver, CO, USA, June 2015.
Synchronous I/O Scheduling of Independent Write Caches for an Array of SSDs, J. Lee, Y. Kim, Jongman Kim, G. M. Shipman, (poster) Non-Volatile Memories Workshop (NVMW) (2015), San Diego, CA, USA, March 2015.
LADS: Optimizing Data Transfers using Layout-Aware Data Scheduling, Y. Kim, S. Atchley, G. R. Vallee, G. M. Shipman, In Proceedings of the USENIX Conference on File and Storage Technologies (FAST) (2015), San Jose, CA, USA, February 2015. (Acceptance Rate: 28/130 = 21.5%) [BK Plus Computer Science IF=3]
Best Practices and Lessons Learned from Deploying and Operating Large-Scale Data-Centric Parallel File systems, S. Oral, J. Simmon, J. Hill, D. Leverman, F. Wang, M. Ezell, R. Miller, D. Fuller, R. Gunasekaran, Y. Kim, S. Gupta, D. Tiwari, S. Vazhkudai, J. Rogers, D. Dillow. A. Bland, G. Shipman, In Proceedings of the ACM/IEEE International Conference on High Performance Computing, Networking, Storage and Analysis (SC) (2015), New Orleans, LA, USA, November 16-21, 2014. (Acceptance Rate: 82/394=21.3%) Nominated among 14 Best Paper Finalists (out of total 394 submissions) [BK Plus Computer Science IF=3]
Feedback Computing in Leadership Compute Systems, R. Gunasakaren, Y. Kim, In Proceeding of the 9th USENIX International Workshop on Feedback Computing, (co-located with USENIX ATC) (2014), Philadelphia, PA, USA, June 2014. (Invited)
Common Communication Interface, S. Atchley, Y. Kim, G. Shipman, G.-R. Vallee, (poster) In the ORNL Software Expo, (2014), May 2014.
Characterizing the File System Impact of the Community Earth System Model, S. Shadwell, Y. Kim, H.-A. Nam, S. Oral, (poster) In the ORNL 2014 Summer Research Participant Poster Session, (2014), May 2014.
Layout-aware I/O Scheduling for Terabit Data Movement, Y. Kim, S. Atchley, G.-R. Valle ́e, G.-M. Shipma, In Proceedings of the IEEE/ACM International Workshop on Network-aware Data Management (NDM) (2013), co-located with SC, Denver CO, USA, November 2013.
End-to-End Data Movement Using MPI-IO Over Routed Terabits Infrastructures, G.-R. Vallee, S. Atchley, Y. Kim, G.-M. Shipman, In Proceedings of the IEEE Workshop on Distributed Storage Systems and Coding for Big Data (co-located with IEEE Big Data) (2013), San Jose, CA, USA, November 2013.
OLCF’s 1TB/s, Next-Generation Spider File System, D. Dillow, S. Oral, D. Fuller, J. Hill, D. Leverman, S. Vazhkudai, F. Wang, Y. Kim, J.-H. Rogers, J. Simmons, R.-G. Miller, In Proceedings of the Cray User Group conference (CUG) (2013), Napa Valley, CA, USA, May 6-9 2013.
Active Flash: Towards Energy-Efficient, In-Situ Data Analytics on Extreme-Scale Machines, D. Tiwari, S. Bobila, S. Vazhkudai, Y. Kim, X. Ma, P. Desnoyers, Y. Solin, In Proceedings of the USENIX Conference on File and Storage Technologies (FAST) (2013), San Jose, CA, USA, February 2013. (Acceptance Rate: 24/127 = 18.9%) [BK Plus Computer Science IF=3]
Reducing Data Movement Costs using Energy-Efficient Active, Computation on SSD, D. Tiwari, S. Vazhkudai, Y. Kim, X. Ma, S. Boboila, P. Desnoyers, In Proceedings of the USENIX Workshop on Power-Aware Computing and Systems (HOTPOWER) (2012), co-located with OSDI, Hollywood, CA, USA, October 2012. (Acceptance Rate: 10/39 = 25.6%)
D-Factor: A Quantitative Model of Application Slow-Down in Shared Service Systems with Multiple Resources, S.-H. Lim, J.-S. Huh, Y. Kim, G.-M. Shipman, C. Das, In Proceedings of the ACM international Conference on Measurement and Modeling of Computer Systems (SIGMETRICS) (2012), London, UK, June 11-15 2012. (Acceptance Rate: 31/203 = 15.2%) [BK Plus Computer Science IF=3]
NVMalloc: Exposing an Aggregate SSD Store as a Memory Partition in Extreme-Scale Machines, C. Wang, S. Vazhkudai, X. Ma, F. Meng, Y. Kim, C. Engelmann, In Proceedings of the IEEE International Parallel and Distributed Processing Symposium (IPDPS) (2012), Shanghai, China, May 21-25 2012. (Acceptance Rate: 118/569 = 20.7%) [BK Plus Computer Science IF=2]
A Next-Generation Parallel File System Environment for the OLCF, G.-M. Shipman, D. Dillow, D. Fuller, R. Gunasekaran, J. Hill, Y. Kim, S. Oral, D. Reitz, J. Simmons, F. Wang, In Proceedings of the Cray User Group conference (CUG) (2012), Stuttgart, Germany, April 29-May 3, 2012.
Active Flash: Out-of-core Data Analytics on Flash Storage, J. Lee, Y. Kim, S. Oral, G.-M. Shipman, D. Dillow, F. Wang, In Proceedings of the IEEE Symposium on Massive Storage Systems and Technologies (MSST) (2012), Monterey, CA, USA, April 16-20, 2012. (Acceptance Rate: 14/57 = 24.5%) [BK Plus Computer Science IF=1]
Comparing Coordinated Garbage Collection Algorithms for Arrays of Solid-state Drives, S. Boboila, Y. Kim, S. Vazhkudai, P. Desnoyers, G.-M. Shipman, In Proceedings of the Non-Volatile Memories Workshop (NVMW) (2012), San Diego, CA, USA March 4-6, 2012.
Performance-Energy Tradeoffs for Out-of-Core Processing on Non-Volatile Memory Devices, S. Boboila, Y. Kim, S. Vazhkudai, P. Desnoyers, G.-M. Shipman, (poster) Non-Volatile Memories Workshop (NVMW) (2012), San Diego, CA, USA March 4-6, 2012.
Enhancing I/O Throughput via Efficient Routing and Placement for Large-scale Parallel File Systems, D. Dillow, S. Oral, G.-M. Shipman, Z. Zhang, Y. Kim, IEEE International Performance Computing and Communications Conference (IPCCC) (2011), Orlando, FL, USA, November 17-19, 2011.
HybridStore: A Cost-Efficient, High-Performance Storage System Combining SSDs and HDDs, Y. Kim, A. Gupta, B. Urgaonkar, P. Berman, A. Sivasubramaniam, In Proceedings of the IEEE Int’l Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS) (2011), Singapore, July 25-27, 2011. (Acceptance rate: 41/157 = 26.1%) [BK Plus Computer Science IF=2]
Provisioning a Multi-Tiered Data Staging Area for Extreme-Scale Machines, R. Prabhakar, S. Vazhkudai, Y. Kim, A. Butt, M. Li, M. Kandemir, In Proceedings of the International Conference on Distributed Computing Systems (ICDCS) (2011), Minneapolis, Minnesota, USA June 20-24, 2011. (Acceptance rate: 87/565 = 15.1%) [BK Plus Computer Science IF=3]
Migration, Assignment, and Scheduling of Jobs in Virtualized Environment, S.-H. Lim, J.-S. Huh, Y. Kim, C. Das, In Proceedings of the USENIX Workshop on Hot Topics in Cloud Computing (HOTCLOUD) (2011), co-located with USENIX ATC, Portland, OR, USA June, 2011. (Acceptance Rate: 23/72 = 31.0%)
Harmonia: A Globally Coordinated Garbage Collector for Arrays of Solid-state Drives, Y. Kim, S. Oral, G.-M. Shipman, J. Lee, D. Dillow, F. Wang, In Proceedings of the IEEE Symposium on Massive Storage Systems and Technologies (MSST) (2011), Denver, Colorado, USA, May 23-27, 2011. (Acceptance Rate: 15/63 = 23.8%) [BK Plus Computer Science IF=1]
A Semi-Preemptive Garbage Collector for Solid State Drives, J. Lee, Y. Kim, G.-M. Shipman, S. Oral, F. Wang, J. Kim, In Proceedings of the IEEE International Symposium on Performance Analysis of Systems and Software (ISPASS) (2011), Austin, TX, USA, April 10-12, 2011. Nominated among 3 Best Paper Finalists [BK Plus Computer Science IF=1]
Workload Characterization of a Leadership Class Storage, Y. Kim, R. Gunasekaran, G.-M. Shipman, D. Dillow, Z. Zhang, B. Settlemyer, In Proceedings of the Petascale Data Storage Workshop in conjunction with SC (PDSW) (2010), co-located with SC New Orleans, LA, USA, November 2010.
Functional Partitioning to Optimize End-to-End Performance on Many-Core Architectures, M. Li, S. Vazhkudai, A. Butt, F. Meng, X. Ma, Y. Kim, C. Engelmann, G.-M. Shipman, In Proceedings of the IEEE/ACM Int’l Conference on High Performance Computing, Networking, Storage and Analysis (SC) (2010), New Orleans, LA, USA, November 2010. (Acceptance Rate: 51/253 = 20.1%) [BK Plus Computer Science IF=3]
Measurement, Modeling, and Analysis of a Large-scale Blog Sever Workload, M. Jeon, J.-H. Hwang, Y. Kim, J.-W. Jang, J. Lee, E. Seo, In Proceedings of the International Symposium on Social Computing Applications (SCA) (2010), Minneapolis, MN, USA, August 2010. Invited paper, only 15% selected from SocialCom-10 submissions
FlashSim: A Simulator for NAND Flash-based Solid-State Drives, Y. Kim, B. Tauras, A. Gupta, B. Urgaonkar, In Proceedings of the International Conference on Advances in System Simulation (SIMUL) (2009), Porto, Portugal, September 2009. (Acceptance Rate: 31.0%)
DFTL: A Flash Translation Layer Employing Demand-based Selective Caching of Page-level Address Mappings, A. Gupta, Y. Kim, B. Urgaonkar, In Proceedings of the International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS) (2009), Washington DC, USA, March 2009. (Acceptance Rate: 29/113 = 21.8%) [BK Plus Computer Science IF=4]
Modeling and Managing Thermal Profiles of Rack-mounted Servers with ThermoStat, J. Choi, Y. Kim, A. Sivasubramaniam, J. Srebric, Q. Wang, J. Lee, In Proceedings of the International Symposium on High Performance Computer Architecture (HPCA) (2007), Phoenix, Arizona, USA, February 2007. (Acceptance Rate: 28/174 = 16.0%) Nominated among 3 Best Paper Finalists [BK Plus Computer Science IF=4]
Graceful Operation of Disk Drives under Thermal Emergencies, Y. Kim, J. Choi, S. Gurumurthi, A. Sivasubramaniam, In Proceedings of the International Conference on Thermal Issues in Emerging Technologies Theory and Application (THETA) (2007), Cairo, Egypt, January 2007.
Understanding the Performance-Temperature Interactions in Disk I/O of Server Workloads, Y. Kim, S. Gurumurthi, A. Sivasubramaniam, In Proceedings of the IEEE International Symposium on High Performance Computer Architecture (HPCA) (2006), Austin, Texas, USA, February 2006. (Acceptance Rate: 26/172 = 15.6%) [BK Plus Computer Science IF=4]
Practical Schemes Using Logs for Lightweight Recoverable DSM, Y. Kim, S. Park, S. Maeng, In Proceedings of the International Conference on Parallel and Distributed Computing and Systems (PDCS) (2003), Marina del Rey, CA, USA, November 2003.
Lightweight Logging and Recovery for Distributed Shared Memory over Virtual Interface Architecture, S. Park, Y. Kim, S. Maeng, In Proceedings of the International Symposium on Parallel and Distributed Computing (ISPDC) (2003), Ljubljana, Slovenia, USA, October 2003.

Journal Publications

Synchronous I/O Scheduling of Independent Write Caches for an Array of SSDs, J. Lee, Y. Kim, J. Kim, G.-M. Shipman, IEEE Computer Architecture Letters (IEEE CAL) (2015), Vol. 14, No. 2, pp. 79-82, July 2015.
An Empirical Study of Redundant Array of Independent Solid-State Drives (RAIS), Y. Kim, Cluster Computing: The Journal of Networks, Software Tools and Applications (2015), Vol. 18, No. 2, pp. 963-977, June 2015.
Understanding I/O Characteristics of a Peta-scale Storage System, Y. Kim, R. Gunasakaren, J. Supercomputing: An International Journal of High-Performance Computer Design, Analysis, and Use (2015), Vol. 71, No. 3, pp. 761-780, March 2015.
Coordinating Garbage Collection for Arrays of Solid-state Drives, Y. Kim, J. Lee, S. Oral, D. Dillow, F. Wang, G. M. Shipman, IEEE Transactions on Computer (IEEE TC) (2014), Vol. 63, No. 4, pp. 888-901, April 2014.
HybridPlan: A Capacity Planning Technique for Projecting Storage Requirements in Hybrid Storage Systems, Y. Kim, A. Gupta, B. Urgaonkar, P. Berman, A. Sivasubramaniam, J. Supercomputing: An International Journal of High-Performance Computer Design, Analysis, and Use (2014), Vol. 67, No. 1, pp. 277-303, January 2014.
A Temporal Locality-aware Page-Mapped Flash Translation Layer, Y. Kim, A. Gupta, B. Urgaonkar, Journal of Computer Science and Technology (JCST) (2013), Vol. 28, No. 6, pp. 1025-1044, November 2013.
Preemptible I/O Scheduling of Garbage Collection for Solid-state Drives, J. Lee, Y. Kim, G. M. Shipman, S. Oral, J. Kim, IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (IEEE TCAD) (2013), Vol. 32, No. 2, pp. 247-260, February 2013.
High Performance Computing: Infrastructure, Application, and Operation, B.-H. Park, Y. Kim, B.-D. Kim, T. Hong, S. Kim, J. Lee, Journal of Computing Science and Engineering (JCSE) (2012), Vol. 6, No. 4, pp. 280-286, December 2012.
Workload Characterization and Performance Implications of Large-Scale Blog Servers, M. Jeon, Y. Kim, J. Hwang, J. Lee, E. Seo, ACM Transactions on the Web (ACM TWEB) (2012), Vol. 6, No. 4, pp. 1-26, November 2012.
A Comprehensive Study on Energy Efficiency and Performance of Flash-based SSD, S.-Y. Park, Y. Kim, B. Urgaonkar, J. Lee, E. Seo Elsevier Journal of System Architecture (JSA) (2011), Vol. 57, No. 4, pp. 354-365, April 2011.
Managing Thermal Emergencies in Disk-Based Storage Systems, Y. Kim, J. Choi, S. Gurumurthi, A. Sivasubramaniam, ASME Journal of Electronic Packaging (ASME JEP) (2008), Vol. 130, No. 4, pp. 0411105, 1-8 December 2008.
CFD-based Tool for Studying Temperature in Rack-mounted Serve, J. Choi, Y. Kim, A. Sivasubramaniam, J. Srebric, Q. Wang, J. Lee, IEEE Transactions on Computer (IEEE TC) (2008), Vol. 57, No. 8, pp. 1129-1142, 1-8, August 2008.
Using STEAM for Thermal Simulation of Storage Systems, S. Gurumurthi, Y. Kim, A. Sivasubramaniam, IEEE Micro Special Issue on Computer Architecture Simulation and Modeling (IEEE MICRO) (2006), Vol. 26, No. 4, pp. 43-51, July/August 2006.

Prof. Youngjae Kim's Publications

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Prof. Youngjae Kim's Publications

International Papers

International Papers

International Patents

Domestic Papers

Domestic Patents

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015 and Earlier