Home Page of M. Ghobadi

Manya Ghobadi

Photo credit: Lillie Paquette / MIT School of Engineering

Email: ghobadi at csail dot mit dot edu

Office: 32 Vassar Street, Cambridge, G940

Research Interests

Reconfigurable Networks

High-Performance Cloud Infrastructure

Networks for Machine Learning

Hardware-Software Co-design

Data Center Networks

Network Optimization

Optical Networks

Teaching

Fall 2020, 2019: 6.829 Computer Networks

Spring 2020, 2019: 6.033 System Engineering

Spring 2021: 6.009 Fundamentals of Programming

Accessibility

TIBCO Career Development Assistant Professor
Computer Science & Artificial Intelligence Laboratory
Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology

CV

Publications

	Restoration-Aware Traffic Engineering in WANs Z. Zhong, M. Ghobadi, A. Khaddaj, J. Leach, Y. Xia, Y. Zhang SIGCOMM 2021 [to appear]
	SiP-ML: High-Bandwidth Optical Network Interconnects for Machine Learning Training M. Khani, M Ghobadi, M. Alizadeh, Z. Zhu, M. Glick, K. Bergman, A. Vahdat, B. Klenk, E. Ebrahimi SIGCOMM 2021 [to appear]
	In-network Aggregation for Shared Machine Learning Clusters (Best Paper Award) N. Gebara, P. Costa, M. Ghobadi MLSYS 2021 [paper] [slides]
	A Social Network Under Social Distancing: Risk-Driven Backbone Management During COVID-19 and Beyond Y. Xia, Y. Zhang, Z. Zhong, G. Yan, C. L. Lim, S. S. Ahuja, S. Bali, A. Nikolaidis, K. Ghobadi, M. Ghobadi USENIX NSDI 2021 [paper]
	Challenging the Stateless Quo of Programmable Switches N. Gebara, A. Lerner, M. Yang, M. Yu, P. Costa, M. Ghobadi ACM HotNets 2020 [paper]
	PINE: Photonic Integrated Networked Energy efficient datacenters (ENLITENED Program) [Invited] M. Glick, N. C. Abrams, Q. Cheng, M. Teh, Y. Hung, O. Jimenez, S. Liu, Y. Okawachi, X. Meng, L. Johansson, M. Ghobadi, L. Dennison, G. Michelogiannakis, J. Shalf, A. Liu, J. Bowers, A. Gaeta, M. Lipson, and K. Bergman Journal of Optical Communications and Networking, 2020 [paper]
	Photonic Memory Disaggregation in Datacenters J. Shalf, G. Michelogiannakis, B. Austin, T. Groves, M. Ghobadi, L. Dennison, T. Gray, M. Glick, K. Bergman OSA Advanced Photonics Congress 2020 [paper]
	On the Complexity of Traffic Traces and Implications C. Avin, M. Ghobadi, K. Griner, S. Schmid ACM SIGMETRICS'20 [paper] [video]
	Enabling Programmable Transport Protocols in High-Speed NICs M. T. Arashloo, A. Lavrov, M. Ghobadi, J. Rexford, D. Walker, D. Wentzlaff USENIX NSDI'20 [paper]
	OptFlow: A Flow-based Abstraction for Programmable Topologies K. Foerster, L. Luo, M. Ghobadi ACM SOSR'20 [paper]
	Active Learning in Undergraduate Computer Systems: Before and After the COVID-19 Pandemic K. LaCurts, M. Ghobadi, K. Sollin SIGCOMM Education Workshop 2020 [paper]
	FAB: Toward Flow-aware Buffer Sharing on Programmable Switches M. Apostolaki, L. Vanbever, M. Ghobadi Buffer Sizing Workshop 2019 [paper] [slides]
	FlexEnt: Entropy Coding to Curb Stragglers in Large-Scale Distributed Machine Learning J. Salamy, A. Sharma, M. Ghobadi, M. Medard SOSP's AI Systems Workshop 2019 [paper] [poster]
	TeaVaR: Striking the Right Utilization-Availability Balance in WAN Traffic Engineering J. Bogle, N. Bhatia, M. Ghobadi, I. Menache, N. Bjorner, A. Valadarsky, M. Schapira ACM SIGCOMM'19 [paper] [slides] [video] [code] [live demo][recorded demo][poster] [press]
	Bandwidth Steering for HPC using Silicon Nanophotonics G. Michelogiannakis, Y. Shen, M. Y. Teh, X. Meng, B. Aivazi, T. Groves, J. Shalf, M. Glick, M. Ghobadi, L. Dennison, K. Bergman ACM/IEEE Supercomputing Conference'19 [paper]
	RADWAN: Rate Adaptive Wide Area Network R. Singh, M. Ghobadi, K. Foerster, M. Filer, P. Gill ACM SIGCOMM'18 [paper] [slides] [ video][ANRW video]
	Characterizing the Algorithmic Complexity of Reconfigurable Data Center Architectures K. Foerster, M. Ghobadi, S. Schmid ACM/IEEE ANCS'18 [paper] [slides]
	Beyond SmartNICs: Towards a Fully Programmable Cloud A. Caulfield, P. Costa, M. Ghobadi IEEE High Performance Switching and Routing'18 [paper]
	PINE: An Energy Efficient Flexibly Interconnected Photonic Data Center Architecture for Extreme Scalability K. Bergman, J. Shalf, G. Michelogiannakis, S. Rumley, L. Dennison, M. Ghobadi IEEE Optical Interconnects'18 [paper]
	Understanding and Mitigating Packet Corruption in Data Center Networks D. Zhuo, M. Ghobadi, R. Mahajan, K. Foerster, A. Krishnamurthy, T. Anderson ACM SIGCOMM'17 [paper][slides][video]
	RAIL: A Case for Redundant Arrays of Inexpensive Links in Data Center Networks D. Zhuo, M. Ghobadi, R. Mahajan, A. Phanishayee, X. K. Zou, H. Guan, A. Krishnamurthy, T. Anderson USENIX NSDI'17 [paper][slides][code][video]
	Run, Walk, Crawl: Towards Dynamic Link Capacities R. Singh, M. Ghobadi, K. Foerster, M. Filer, P. Gill ACM HotNets'17 [paper][dialogue][video][press]
	HotCocoa: Hardware Congestion Control Abstractions M. T. Arashloo, M. Ghobadi, J. Rexford, D. Walker ACM HotNets'17 [paper][code][video]
	Optical Layer Failures in a Large Backbone (Best dataset award) M. Ghobadi, R. Mahajan ACM IMC'16 [paper][dataset]
	ProjecToR: Agile Reconfigurable Data Center Interconnect M. Ghobadi, R. Mahajan, A. Phanishayee, N. Devanur, J. Kulkarni, G. Ranade, P. Blanche, H. Rastegarfar, M. Glick, D. Kilper ACM SIGCOMM'16 [paper][video][demo][slides.pdf][slides.pptx][Disco Ball tech. report]
	ECN or Delay: Lessons Learnt from Analysis of DCQCN and TIMELY (Best Paper Award Finalist) Y. Zhu, M. Ghobadi, V. Misra, J. Padhye ACM CoNEXT'16 [paper][slides]
	Evaluation of Elastic Modulation Gains in Microsoft's Optical Backbone in North America M. Ghobadi, J. Gaudette, R. Mahajan, A. Phanishayee, B. Klinkers, D. Kilper Optical Fiber Communication Conference (OFC)'16 [paper][slides]
	Elastic Optical Networking in the Microsoft Cloud M. Filer, J. Gaudette, M. Ghobadi, R. Mahajan, T. Issenhuth, B. Klinkers, J. Cox Journal of Optical Communications and Networking (JOCN)'16 [paper][press]
	TIMELY: RTT-based Congestion Control for the Datacenter R. Mittal, V. Lam, N. Dukkipati, E. Blem, H. Wassel, M. Ghobadi, A. Vahdat, Y. Wang, D. Wetherall, D. Zats ACM SIGCOMM'15 [paper][public review][code][video]
	Efficient Traffic Splitting on Commodity Switches N. Kang, M. Ghobadi, J. Reumann, A. Shraer, J. Rexford ACM CoNEXT'15 [paper][slides]
	TCP Pacing in Data Center Networks M. Ghobadi, Y. Ganjali IEEE Hot Interconnects'13 [paper][slides]
	Trickle: Rate Limiting YouTube Video Streaming (Google Research Excellent Paper Award) M. Ghobadi, Y. Cheng, A. Jain, M. Mathis USENIX ATC'12 [paper][slides][video][demo]
	Rethinking End-to-End Congestion Control in Software-Defined Networks M. Ghobadi, S. Yeganeh, Y. Ganjali ACM HotNets'12 [paper][slides]
	Caliper: Precise and Responsive Traffic Generator M. Ghobadi, G. Salmon, Y. Ganjali, M. Labrecque, G. Steffan IEEE Hot Interconnects'12 [paper][slides][video][demo]
	Proportional Rate Reduction for TCP (Google Research Excellent Paper Award) N. Dukkipati, M. Mathis, Y. Cheng, M. Ghobadi ACM IMC'11 [paper][RFC]
	OpenTM: Traffic Matrix Estimator for OpenFlow Networks A. Tootoonchian, M. Ghobadi, Y. Ganjali Passive and Active Measurement conference'10 [paper][video]
	Emulation of Optical PIFO Buffers H. Rastegarfar, M. Ghobadi, Y. Ganjali IEEE GLOBECOM'09 [paper]
	NetThreads: Programming NetFPGA with Threaded Software (2nd Place for Best Project Award) M. Labrecque, J. Steffan, G. Salmon, M. Ghobadi, Y. Ganjali NetFPGA Developers Workshop'09 [paper][code]
	NetFPGA-based Precise Traffic Generation G. Salmon, M. Ghobadi, Y. Ganjali, M. Labrecque, J. Steffan NetFPGA Developers Workshop'09 [paper][tech. report][code][documentation]
	Experimental study of router buffer sizing (Best Paper Award) N. Beheshti, Y. Ganjali, M. Ghobadi, N. McKeown, and G. Salmon ACM IMC'08 [paper]
	Resource Optimization Algorithms for Virtual Private Networks Using the Hose Model M. Ghobadi, S. Ganti, G. C. Shoja Computer Networks Journal'08 [paper]
	Performing Time-sensitive Network Experiments N. Beheshti, Y. Ganjali, M. Ghobadi, J. Naous, N. McKeown, and G. Salmon ANCS'08 [paper]
	Hierarchical Provisioning Algorithm for Virtual Private Networks Using the Hose Model M. Ghobadi, S. Ganti, G. C. Shoja IEEE GLOBECOM'07 [paper]
	Resource Optimization to Provision a Virtual Private Network Using the Hose Model M. Ghobadi, S. Ganti, G. C. Shoja IEEE ICC'07 [paper]

Selected Talks

OFC, Network Analytics in the Age of Machine Learning, Mar. 2020

Google Networking Research Summit, Striking the Right Utilization-Availability Balance in the Cloud, Mar. 2019

Cornell Workshop on Foundations of Routing, TeaVaR: Striking the Right Utilization-Availability Balance in WAN Traffic Engineering, Jun. 2019

Panelist at SIGCOMM's 50th-anniversary, Past and Future Directions in Networking Research, Aug. 2019

Panelist at Alibaba's Networking Summit in Beijing, Aug. 2019

STOC TheoryFest, Programming the Topology of Networks: Technology and Algorithms, Jun. 2018

Cornell Systems Research Seminar, Programmable Topologies, Oct. 2017

Datacenter symposium at IEEE Photonics Conference (IPC), Oct. 2017

Programmable Networks, ARPA-E Enlightened meeting, Aug. 2017

Photonic Networks and Devices (NETWORKS) Conference, Jul. 2017,

Stanford University Net Seminar, May 2017, [slides][video]

Stanford University, Guest Lecture at CS244: Advanced Topics in Networking course on Data Centers, May 2017.

University of Washington CSE Women Research Day, Apr. 2017

Center for Networking Systems lecture series (UCSD), Peeking into light: enabling physical layer innovations, Feb. 2017, [video]. Also at: UCSB (Feb 2017), UMass Amherst (March 2017), Harvard (March 2017)

ON*VECTOR International photonics workshop, Feb. 2017

Center for Integrated Access Networks (CIAN), A Look at the Optical Layer of Cloud Networks, [video]

ProjecToR: Agile Reconfigurable Data Center Interconnect, [video]

MSR Faculty Summit 2016: Optical Networks for the Cloud [video]

Postdocs

Dr. Zhizhen Zhong (Ph.D. Tsinghua University)

Dr. Homa Esfahanizadeh (Ph.D. UCLA, with Muriel Medard)

Dr. Moein Khazraee (Ph.D. UCSD)

Current Students

James Salamy (Ph.D.)

Alaa Khaddaj (Ph.D.)

Mingran Yang (Ph.D.)

Sudarsanan Rajasekaran (Ph.D.)

Weiyang (Frank) Wang (Ph.D.)

Benoit Pit--Claudel (Ph.D., with Muriel Medard)

Alumni

Jeremy Bogle (M.Eng. 2019, now at Apple, Thesis: A Fundamental Approach for Providing Service-Level Guarantees for Wide-Area Networks)

Ayush Sharma (M.Eng. 2020, Thesis: Aikido: Toward Straggler Mitigation for Distributed Machine Learning Training in Cloud Data Centers)

Amir Farhat (SuperUROP, Fall 2019 -- Spring 2020, Project: Communication Patterns in Distributed Deep Learning)

Tenzin Ukyab (UROP, Fall 2019 -- Spring 2020)

Professional Activities

Program Chair, ACM SIGCOMM Workshop on Optical Systems (OptSys), 2021

Program Committee, ACM SOSP, 2021

Program Committee, USENIX OSDI, 2021

Co-chair, Optics and Machine Learning Symposium, OFC, 2021

Program Committee, USENIX NSDI, 2021

Program Committee, OFC, 2021

Workshops Chair, ACM SIGCOMM, 2020

Program Committee, ACM SIGCOMM, 2020

Program Committee, USENIX NSDI, 2020

Program Committee, USENIX ATC, 2020

Program Committee, ACM HotNets, 2019

Program Committee, ACM SIGCOMM, 2019

Program Chair, New England Network and Systems (NENS), 2019

Program Chair, ACM SIGCOMM Workshop on Optical Systems (OptSys), 2019

Program Committee, USENIX NSDI, 2019

Program Committee, OSA Photonic Networks and Devices, 2018

Program Committee, ACM CoNEXT, 2018

Program Committee, ACM IMC, 2018

Program Committee, ACM HotNets, 2018

Program Committee, ACM SOSR, 2018

General Chair, ACM SOSR, 2018

Program Committee, APNet, 2018

Program Committee, IEEE HPSR, 2018

Program Committee, ACM HotMobile, 2018

Mentoring co-chair, N2Women workshop at ACM SIGCOMM, 2017

Program Committee, ACM SIGCOMM, 2017

Program Committee, ACM IMC, 2017

Program Committee, ACM SOSR, 2017

Program Committee, ACM CoNEXT, 2017

Program Committee, IEEE ICNP, 2017

Program Committee, IEEE/IFICO TMA, 2017

Program Committee, APNet, 2017

Program Committee, PAM, 2017

Program Committee, IEEE MASCOTS, 2017

Program Committee, USENIX NSDI, 2016

Program Committee, ACM CoNEXT, 2016

Program Committee, IEEE Hot Interconnects, 2016

Program Committee, ACM SOSR, 2015

Program Committee, ACM CoNEXT, 2015

Program Committee, IEEE Hot Interconnects, 2015

Program Committee, ACM CoNEXT student workshop, 2013

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