Computer System Architecture Lab
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Coldmap: Extending SSD Lifetime Exploiting Multi-Page Mapping Information
Solid-state drives (SSDs) include flash translation layer (FTL) functions to manage the inherent characteristics of NAND flash memory. …
Jaewon Seo
,
Gunjae Koo
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VitBit: Enhancing Embedded GPU Performance for AI Workloads through Register Operand Packing
The rapid advancement of Artificial Intelligence (AI) necessitates significant enhancements in the energy efficiency of Graphics …
Jaebeom Jeon
,
Minseong Gil
,
Junsu Kim
,
Jaeyong Park
,
Gunjae Koo
,
Myung Kuk Yoon
,
Yunho Oh
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Warped-MC: An Efficient Memory Controller Scheme for Massively Parallel Processors
The performance of GPU’s external memories is becoming more critical since a modern GPU runs thousands of concurrent threads that …
Jonghyun Jeong
,
Myung Kuk Yoon
,
Yunho Oh
,
Gunjae Koo
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CacheRewinder: Revoking Speculative Cache Updates Exploiting Write-Back Buffer
Transient execution attacks are critical security threats since those attacks exploit speculative execution which is an essential …
Jongmin Lee
,
Junyeon Lee
,
Taeweon Suh
,
Gunjae Koo
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Video
DOI
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Stealth ECC: A Data-Width Aware Adaptive ECC Scheme for DRAM Error Resilience
As DRAM process technology scales down and DRAM density continues to grow, DRAM errors have become a primary concern in modern data …
Young Seo Lee
,
Gunjae Koo
,
Young-Ho Gong
,
Sung Woo Chung
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Video
DOI
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Restore Buffer Overflow Attacks: Breaking Undo-Based Defense Schemes
Transient execution attacks have been severe security threats since such attacks exploit architectural vulnerabilities in out-of-order …
Jongmin Lee
,
Gunjae Koo
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GraphSSD: Graph Semantics Aware SSD
Graph analytics play a key role in a number of applications such as social networks, drug discovery, and recommendation systems. Given …
Kiran Kumar Matam
,
Gunjae Koo
,
Haipeng Zha
,
Hung-Wei Tseng
,
Murali Annavaram
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DOI
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Linebacker: Preserving Victim Cache Lines in Idle Register Files of GPUs
Modern GPUs suffer from cache contention due to the limited cache size that is shared across tens of concurrently running warps. To …
Yunho Oh
,
Gunjae Koo
,
Murali Annavaram
,
Won Woo Ro
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DOI
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CTA-Aware Prefetching and Scheduling for GPU
Albeit GPUs are supposed to be tolerant to long latency of data fetch operation, we observe that L1 cache misses occur in a bursty …
Gunjae Koo
,
Hyeran Jeon
,
Zhenhong Liu
,
Nam Sung Kim
,
Murali Annavaram
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Summarizer: Trading Communication with Computing near Storage
Modern data center solid state drives (SSDs) integrate multiple general-purpose embedded cores to manage flash translation layer, …
Gunjae Koo
,
Kiran Kumar Matam
,
Te I
,
H. V. Krishna Giri Narra
,
Jing Li
,
Hung-Wei Tseng
,
Steven Swanson
,
Murali Annavaram
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