Publications by Stavros Volos | EPFL Graph Search

Fat Caches For Scale-Out Servers

Babak Falsafi, Stavros Volos, Dorde Jevdic, Boris Robert Grot

The authors propose a high-capacity cache architecture that leverages emerging high-bandwidth memory modules. High-capacity caches capture the secondary data working sets of scale-out workloads while uncovering significant spatiotemporal locality across da ...

Institute of Electrical and Electronics Engineers2017

Memory Systems and Interconnects for Scale-Out Servers

Stavros Volos

The information revolution of the last decade has been fueled by the digitization of almost all human activities through a wide range of Internet services. The backbone of this information age are scale-out datacenters that need to collect, store, and proc ...

EPFL2015

A Case for Specialized Processors for Scale-Out Workloads

Mohammad Alisafaee, Anastasia Ailamaki, Babak Falsafi, Michael Ferdman, Stavros Volos, Adrian Daniel Popescu, Al Mutaz Adileh, Dorde Jevdic, Ilknur Cansu Kaynak, Yusuf Onur Koçberber

Emerging scale-out workloads need extensive amounts of computational resources. However, datacenters using modern server hardware face physical constraints in space and power, limiting further expansion and requiring improvements in the computational densi ...

Ieee Computer Soc2014

BuMP: Bulk Memory Access Prediction and Streaming

Babak Falsafi, Stavros Volos, Javier Picorel Obando, Boris Robert Grot

With the end of Dennard scaling, server power has emerged as the limiting factor in the quest for more capable datacenters. Without the benefit of supply voltage scaling, it is essential to lower the energy per operation to improve server efficiency. As th ...

2014

Die-Stacked DRAM Caches for Servers: Hit Ratio, Latency, or Bandwidth? Have It All with Footprint Cache

Babak Falsafi, Stavros Volos, Dorde Jevdic

Recent research advocates using large die-stacked DRAM caches to break the memory bandwidth wall. Existing DRAM cache designs fall into one of two categories — block-based and page-based. The former organize data in conventional blocks (e.g., 64B), ensurin ...

ACM2013

CCNoC: Specializing On-Chip Interconnects for Energy Efficiency in Cache-Coherent Servers

Giovanni De Micheli, Ciprian Seiculescu, Babak Falsafi, Naser Khosro Pour, Stavros Volos, Boris Robert Grot

Manycore chips are emerging as the architecture of choice to provide power efficiency and improve performance, while riding Moore’s Law. In these architectures, on-chip interconnects play a pivotal role in ensuring power and performance scalability. As sup ...

2012

Clearing the Clouds: A Study of Emerging Scale-out Workloads on Modern Hardware

Mohammad Alisafaee, Anastasia Ailamaki, Babak Falsafi, Michael Ferdman, Stavros Volos, Adrian Daniel Popescu, Al Mutaz Adileh, Dorde Jevdic, Ilknur Cansu Kaynak, Yusuf Onur Koçberber

Emerging scale-out workloads require extensive amounts of computational resources. However, data centers using modern server hardware face physical constraints in space and power, limiting further expansion and calling for improvements in the computational ...

2012

Scale-Out Processors

Babak Falsafi, Michael Ferdman, Pejman Lotfi Kamran, Stavros Volos, Al Mutaz Adileh, Dorde Jevdic, Yusuf Onur Koçberber, Javier Picorel Obando, Boris Robert Grot

Scale-out datacenters mandate high per-server throughput to get the maximum benefit from the large TCO investment. Emerging applications (e.g., data serving and web search) that run in these datacenters operate on vast datasets that are not accommodated by ...

Ieee2012

Quantifying the Mismatch between Emerging Scale-Out Applications and Modern Processors

Mohammad Alisafaee, Anastasia Ailamaki, Babak Falsafi, Michael Ferdman, Stavros Volos, Adrian Daniel Popescu, Al Mutaz Adileh, Dorde Jevdic, Ilknur Cansu Kaynak, Yusuf Onur Koçberber

Emerging scale-out workloads require extensive amounts of computational resources. However, data centers using modern server hardware face physical constraints in space and power, limiting further expansion and calling for improvements in the computational ...

Association for Computing Machinery2012