We are the Systems and Theory Group for Intelligent and Adaptive Networks (STyGIANet) in the Computer Science Department at Purdue University, led by Vamsi Addanki. Our research sits at the intersection of networked systems, distributed computing, and theory, where we design, model, and analyze the networks that power today’s most demanding applications. We are especially excited about building the next generation of photonic interconnects for GPU clusters, aiming to break through the bandwidth barriers that limit distributed training and inference at scale.

At STyGIANet, we take a systems-driven yet theory-grounded approach:

• We prototype bold new ideas in datacenter networking, from photonic interconnects for GPU clusters to AI-driven protocols.
• We use theory as a lens to analyze performance, guide design choices, and ensure our systems scale in practice.
• We collaborate with industry partners and across disciplines to translate research into deployments, open-source tools, and real-world impact.

Openings

• Purdue students looking for PhD advisor
  We are currently looking for candidates leaning towards theory and with prior networking background to join our group. Please send an email to Vamsi Addanki.
• Purdue undergraduate students
  Drop by at one of our weekly group meetings to have a chat. Please send an email for the location and time.
• External students
  Please email your CV along with a brief motivation.

News

	Nihar joins STyGIANet. Welcome! 04-Nov-2025 Nihar joins as a Junior-year undergraduate student with expertise in MPI, parallel computing, and collective communication libraries. He will be focusing on cuda kernels and dma latencies.
	New paper accepted to SOSA 2026! 05-Oct-2025 Our paper "The Harmonic Policy for Online Buffer Sharing is (2+ln)-Competitive: A Simple Proof" revisits the best known upper bound for drop-tail buffer sharing (Harmonic algorithm) and presents a much simpler proof for its ln-competitive ratio. PDF
	Nirmal joins STyGIANet. Welcome! 03-Oct-2025 Nirmal joins as a Junior-year undergraduate student with expertise in GPU kernels and distributed inference. He will be focusing on LLM inference in GPU clusters.
	New paper accepted to HotNets 2025! 17-Sept-2025 Our paper "When Light Bends to the Collective Will: A Theory and Vision for Adaptive Photonic Scale-up Domains" envisions fully photonic chip-to-chip communication in GPU clusters, characterizes the performance of collective communication, and opens an optimization opportunity for adaptive photonic interconnects. PDF
	Deeksha joins STyGIANet. Welcome! 25-Aug-2025 Deeksha is a Masters student, specializing in FPGAs and verilog. At STyGIANet, she will be focusing on the systems challenges involved in reconfigurable networks.
	Mahir joins STyGIANet. Welcome! 20-Aug-2025 Mahir is a second year PhD student, co-advised by Prof. Sonia Fahmy. Mahir will focus broadly on datacenter networking and collective communication workloads.
	Vamsi joins Purdue CS as Assistant Professor! 18-Aug-2025 Vamsi joins the Computer Science Department as an Assistant Professor on August 18th, 2025. He will lead the STyGIANet lab to build the next generation intelligent and adaptive networks.

Nihar joins STyGIANet. Welcome!

04-Nov-2025

Nihar joins as a Junior-year undergraduate student with expertise in MPI, parallel computing, and collective communication libraries. He will be focusing on cuda kernels and dma latencies.

New paper accepted to SOSA 2026!

05-Oct-2025

Our paper "The Harmonic Policy for Online Buffer Sharing is (2+ln)-Competitive: A Simple Proof" revisits the best known upper bound for drop-tail buffer sharing (Harmonic algorithm) and presents a much simpler proof for its ln-competitive ratio. PDF

Nirmal joins STyGIANet. Welcome!

03-Oct-2025

Nirmal joins as a Junior-year undergraduate student with expertise in GPU kernels and distributed inference. He will be focusing on LLM inference in GPU clusters.

New paper accepted to HotNets 2025!

17-Sept-2025

Our paper "When Light Bends to the Collective Will: A Theory and Vision for Adaptive Photonic Scale-up Domains" envisions fully photonic chip-to-chip communication in GPU clusters, characterizes the performance of collective communication, and opens an optimization opportunity for adaptive photonic interconnects. PDF

Deeksha joins STyGIANet. Welcome!

25-Aug-2025

Deeksha is a Masters student, specializing in FPGAs and verilog. At STyGIANet, she will be focusing on the systems challenges involved in reconfigurable networks.

Mahir joins STyGIANet. Welcome!

20-Aug-2025

Mahir is a second year PhD student, co-advised by Prof. Sonia Fahmy. Mahir will focus broadly on datacenter networking and collective communication workloads.

Vamsi joins Purdue CS as Assistant Professor!

18-Aug-2025

Vamsi joins the Computer Science Department as an Assistant Professor on August 18th, 2025. He will lead the STyGIANet lab to build the next generation intelligent and adaptive networks.

Older news can be found here