Imperial College London
Portrait Picture

Dr Lluis Vilanova

Faculty of Engineering, Department of Computing

Senior Lecturer
 
 
 
//

Contact

 

+44 (0)20 7594 8328vilanova Website

 
 
//

Location

 

556Huxley BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@inproceedings{Vilanova:2022:10.1145/3492321.3519569,
author = {Vilanova, L and Maudlej, L and Bergman, S and Miemietz, T and Hille, M and Asmussen, N and Roitzsch, M and Härtig, H and Silberstein, M},
doi = {10.1145/3492321.3519569},
pages = {352--367},
publisher = {ACM},
title = {Slashing the disaggregation tax in heterogeneous data centers with FractOS},
url = {http://dx.doi.org/10.1145/3492321.3519569},
year = {2022}
}
Download

RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Disaggregated heterogeneous data centers promise higher efficiency, lower total costs of ownership, and more flexibility for data-center operators. However, current software stacks can levy a high tax on application performance. Applications and OSes are designed for systems where local PCIe-connected devices are centrally managed by CPUs, but this centralization introduces unnecessary messages through the shared data-center network in a disaggregated system.We present FractOS, a distributed OS that is designed to minimize the network overheads of disaggregation in heterogeneous data centers. FractOS elevates devices to be first-class citizens, enabling direct peer-to-peer data transfers and task invocations among them, without centralized application and OS control. FractOS achieves this through: (1) new abstractions to express distributed applications across services and disaggregated devices, (2) new mechanisms that enable devices to securely interact with each other and other data-center services, (3) a distributed and isolated OS layer that implements these abstractions and mechanisms, and can run on host CPUs and SmartNICs.Our prototype shows that FractOS accelerates real-world heterogeneous applications by 47%, while reducing their network traffic by 3×.
AU  - Vilanova,L
AU  - Maudlej,L
AU  - Bergman,S
AU  - Miemietz,T
AU  - Hille,M
AU  - Asmussen,N
AU  - Roitzsch,M
AU  - Härtig,H
AU  - Silberstein,M
DO  - 10.1145/3492321.3519569
EP  - 367
PB  - ACM
PY  - 2022///
SP  - 352
TI  - Slashing the disaggregation tax in heterogeneous data centers with FractOS
UR  - http://dx.doi.org/10.1145/3492321.3519569
UR  - https://dl.acm.org/doi/10.1145/3492321.3519569
ER  -
Download