Publications

CacheMind: From Miss Rates to Why—Natural-Language, Trace-Grounded Reasoning for Cache Replacement

Kaushal Mhapsekar, Azam Ghanbari, Bita Aslrousta, and Samira Mirbagher Ajorpaz

FeatureBleed: Inferring Private Enriched Attributes From Sparsity-Optimized AI Accelerators

Darsh Asher, Farshad Dizani, Joshua Kalyanapu, Rosario Cammarota, Aydin Aysu, and Samira Mirbagher Ajorpaz

GateBleed: Exploiting On-Core Accelerator Power Gating for High Performance and Stealthy Attacks on AI

Joshua Kalyanapu, Darsh Asher, Farshad Dizani, Azam Ghanbari, Rosario Cammarota, Aydin Aysu, and Samira Mirbagher Ajorpaz

IEEE Micro Top Picks recognizes research for its novelty and potential for lasting impact on computer architecture. GateBleed is one of 12 selections for 2026 from work published across 18 eligible conferences in 2025. Bundle: IEEE Micro Top Picks article (13 pages), published MICRO 2025 paper (18 pages), and impact summary (3 pages). The individual Top Picks PDF is the author manuscript.

GateBleed: Exploiting On-Core Accelerator Power Gating for High Performance and Stealthy Attacks on AI

Joshua Kalyanapu, Farshad Dizani, Darsh Asher, Azam Ghanbari, Rosario Cammarota, Aydin Aysu, and Samira Mirbagher Ajorpaz

Three artifact-evaluation badges · MICRO 2025
GateBleed earned Artifacts Available; Artifacts Evaluated — Functional; Results Reproduced.

THOR: A Non-Speculative Value Dependent Timing Side Channel Attack Exploiting Intel AMX

Farshad Dizani, Azam Ghanbari, Joshua Kalyanapu, Darsh Asher, and Samira Mirbagher Ajorpaz

Exploiting Intel AMX Power Gating

Joshua Kalyanapu, Farshad Dizani, Azam Ghanbari, Darsh Asher, and Samira Mirbagher Ajorpaz

EVAX: Towards a Practical, Pro-active & Adaptive Architecture for High Performance & Security

Samira Mirbagher Ajorpaz, Daniel Moghimi, Jeffrey Neal Collins, Gilles Pokam, Nael Abu-Ghazaleh, and Dean Tullsen

Composite Instruction Prefetching

Gino Chacon, Elba Garza, Alexandra Jimborean, Alberto Ros, Paul V. Gratz, Daniel A. Jiménez, and Samira Mirbagher Ajorpaz

Camera-ready author version. Gino Chacon and Elba Garza contributed equally.

Dynamic Set Stealing to Improve Cache Performance

Brady Testa, Samira Mirbagher Ajorpaz, and Daniel A. Jiménez

PerSpectron: Detecting Invariant Footprints of Microarchitectural Attacks with Perceptron

Samira Mirbagher Ajorpaz, Gilles Pokam, Esmaeil Mohammadian-Koruyeh, Elba Garza, Nael Abu-Ghazaleh, and Daniel A. Jiménez

CHiRP: Control-Flow History Reuse Prediction

Samira Mirbagher Ajorpaz, Elba Garza, Gilles Pokam, and Daniel A. Jiménez

Bit-level Perceptron Prediction for Indirect Branches

Elba Garza, Samira Mirbagher Ajorpaz, Tahsin Ahmad Khan, and Daniel A. Jiménez

Exploring Predictive Replacement Policies for Instruction Cache and Branch Target Buffer

Samira Mirbagher Ajorpaz, Elba Garza, Sangam Jindal, and Daniel A. Jiménez