People

Oreste Villa

Oreste Villa joined NVIDIA in March 2013. He is a senior research scientist in the Architecture Research Group working on system level simulation, binary instrumentation and transparent Multi-GPU support. Previously he was a research scientist at Pacific Northwest National Lab where he worked on high performance computing distributed applications, distributed runtimes, GPU accelerated graph algorithms and performance models. He received his Ph.D. in Computer Science from Politecnico di Milano (Italy) in 2008.

Research Area(s)
Computer Architecture
High Performance Computing
Programming Languages, Systems and Tools
Google Scholar
https://scholar.google.com/citations?user=ElikqN4AAAAJ&hl=en

Publications

2023

Parsimony: Enabling SIMD/Vector Programming in Standard Compiler Flows
Vijay Kandiah, Daniel Lustig, Oreste Villa, David Nellans, Nikos Hardavellas
International Symposium on Code Generation and Optimization

2021

NVBitFI: Dynamic Fault Injection for GPUs
Timothy Tsai, Siva Hari, Michael B. Sullivan, Oreste Villa, Steve Keckler
International Conference on Dependable Systems and Networks (DSN)
Need for Speed: Experiences Building a Trustworthy System-Level GPU Simulator.
Oreste Villa, Daniel Lustig, Zi Yan, Evgeny Bolotin, Yaosheng Fu, Niladrish Chatterjee, Ted Jiang, David Nellans
International Symposium on High Performance Computer Architecture (HPCA)

2020

NWChem: Past, Present, and Future
Edoardo Aprà, Many others, Oreste Villa, Many others
The Journal of Chemical Physics
HMG: Extending Cache Coherence Protocols Across Modern Hierarchical Multi-GPU Systems
Xiaowei Ren, Daniel Lustig, Evgeny Bolotin, Aamer Jaleel, Oreste Villa, David Nellans
International Symposium on High Performance Computer Architecture (HPCA)

2019

NVBit: A Dynamic Binary Instrumentation Framework for NVIDIA GPUs
Oreste Villa, Mark Stephenson, David Nellans, Steve Keckler
International Symposium on Microarchitecture (MICRO)

2018

Combining HW/SW Mechanisms to Improve NUMA Performance of Multi-GPU Systems
Vinson Young, Aamer Jaleel, Evgeny Bolotin, Eiman Ebrahimi, David Nellans, Oreste Villa
International Symposium on Microarchitecture (MICRO)

2017

Beyond the Socket: NUMA-Aware GPUs
Ugljesa Milic, Oreste Villa, Evgeny Bolotin, Akhil Arunkumar, Eiman Ebrahimi, Aamer Jaleel, Alex Ramirez, David Nellans
International Symposium on Microarchitecture (MICRO)
MCM-GPU: Multi-Chip-Module GPUs for Continued Performance Scalability
Akhil Arunkumar , Evgeny Bolotin, Benjamin Cho, Ugljesa Milic , Eiman Ebrahimi, Oreste Villa, Aamer Jaleel, Carole-Jean Wu , David Nellans
International Symposium on Computer Architecture (ISCA)

2015

Designing Efficient Heterogeneous Memory Architectures
Evgeny Bolotin, David Nellans, Oreste Villa, Mike O'Connor, Alex Ramirez, Steve Keckler, Mike O'Connor
IEEE Micro
In-Memory Graph Databases for Web-Scale Data
Vito Giovanni Castellana, Alessandro Morari, Jesse Weaver, Antonino Time, David Haglin, Oreste Villa, John Feo
IEEE Computer

2014

Scaling the Power Wall: A Path to Exascale
Oreste Villa, Daniel Johnson, Mike O'Connor, Evgeny Bolotin, David Nellans, Justin Luitjens, Nikolai Sakharnykh, Peng Wang, Paulius Micikevicius, Anthony Scudiero, Steve Keckler, William Dally
SC '14
Scaling Irregular Applications through Data Aggregation and Software Multithreading
Alessandro Morari, Antonino Tumeo, Daniel Chavarria-Miranda, Oreste Villa, Mateo Valero
International Parallel and Distributed Processing Symposium (IPDPS)