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UID:766@lincs.fr
DTSTART;TZID=Europe/Paris:20230517T150000
DTEND;TZID=Europe/Paris:20230517T160000
DTSTAMP:20230526T083919Z
URL:https://www.lincs.fr/events/three-perspectives-to-enhance-the-performa
 nce-of-high-speed-datacenter-networks/
SUMMARY:Three Perspectives to Enhance the Performance of High-Speed
 Datacenter Networks
DESCRIPTION:The performance of large-scale computing systems often
 critically depends on high-performance communication networks. In this
 presentation\, I will focus on two key metrics throughput and latency from
 three perspectives within a datacenter network: end-host\, network
 dataplane and topology.\n\nAt the end-host\, I will discuss the impact of
 congestion control in achieving high throughput and low latency while
 requiring little to no buffer in the network. I will then present
 PowerTCP\, a power-based congestion control algorithm that leverages inband
 network telemetry and adapts to both the absolute state as well as the
 changes in the network (NSDI 2022).\n\nAt the network core\, I will discuss
 the role of buffer management in improving datacenter performance and
 present Active Buffer Management (ABM)\, a novel buffer sharing scheme for
 datacenter switches.  ABM not only offers isolation but also offers stable
 queueing delays which as we show essentially enhances the burst absorption
 capabilities of the switch (SIGCOMM 2022).\n\nAt the topological level\, I
 will show the fundamental tradeoffs across throughput\, latency and buffer
 requirements within a subset of the design space. I will briefly present
 Mars\, a near-optimal throughput reconfigurable datacenter topology that
 achieves high throughput within the given buffer capacity of the network
 devices (SIGMETRICS 2023).\n\nI will conclude by discussing ongoing works
 and open questions.\n\n&nbsp\;\nBio\nVamsi is a third year PhD student at
 TU Berlin under the supervision of Prof. Stefan Schmid.  He obtained MSc.
 from Sorbonne University Paris and did his thesis at ETH Zurich. In 2017\,
 he started off his path towards research at Telecom Paris with Prof. Dario
 Rossi and Leonardo Linguaglossa hosted at Lincs. Currently\, he is broadly
 interested in network topologies\; congestion control and network flow
 problems\; online algorithms and competitive analysis\; buffer requirements
 and management\; and related areas. His research is mainly at the
 intersection of networking theory and systems.
CATEGORIES:Seminars,Youtube
LOCATION:Room 4B01\, 19 place Marguerite Perey\, Palaiseau\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=19 place Marguerite Perey\,
 Palaiseau\, France;X-APPLE-RADIUS=100;X-TITLE=Room 4B01:geo:0,0
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TZID:Europe/Paris
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DTSTART:20230326T030000
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