Sunil Kumar

Ph.D. | HPC & Systems Researcher

Indraprastha Institute of Information Technology, Delhi (IIIT-Delhi)  ·  Google Ph.D. Fellow

I am a researcher working on computer systems, with a focus on high-performance computing, power management, and performance optimization of modern CPU/GPU systems.

My research focuses on improving power efficiency (performance/watt) by exploiting techniques such as dynamic voltage and frequency scaling (DVFS), uncore frequency scaling, power capping, and runtime-level power management. I characterize diverse workloads using hardware performance counters and design adaptive runtime systems that respond to application behavior.

My work spans co-running HPC workloads, multicore and multiprocessor systems, CPU/GPU performance analysis, and resource management under power constraints. I am particularly interested in the interaction between workload characteristics, processor frequency settings, power budgets, throughput, and fairness.

Research interests

High-Performance Computing · CPU/GPU Performance Optimization · Power Management · DVFS · Uncore Frequency Scaling · Power Capping · Runtime Systems · PMU/PMC Profiling · Performance/Watt

News

2026 Proposal accepted in GDM APAC Research Symposium.

2026 Full paper accepted at HiPC'26.

2026 Submitted Ph.D. thesis in July 2026.

2026 Full paper published in ACM TACO.

2025 Full paper accepted at Euro-Par'25.

2025 Short paper accepted in the Euro-Par'25 PhD Symposium.

2025 Artifact accepted at Euro-Par'25.

2025 Received student scholarship for Euro-Par'25.

2024 Poster accepted at HiPC SRS'24.

2022 Received the Google Ph.D. Fellowship.

2021 Cuttlefish accepted at SC'21.

Selected publications

Reward-Driven Power Scheduling under Power Capping with DVFS-UFS Co-Optimization

Sunil Kumar and Vivek Kumar · HiPC'26 · 2026

Details & publications →

Power Scheduling for Maximizing Throughput and Fairness in Co-running Applications

Sunil Kumar, Vivek Kumar, and Sridutt Bhalachandra · ACM TACO · 2026

Paper →

KarmaPM: Reward-Driven Power Manager

Sunil Kumar and Vivek Kumar · Euro-Par'25 · 2025

Paper →