SPCL@ETH@spcl_eth

News from the Scalable Parallel Computing Lab at ETH Zurich @ETH_en led by @thoefler. Join or visit us: spcl.inf.ethz.ch/Jobs/

 Zurich, Switzerland
spcl.inf.ethz.ch
Joined March 2013
588 Photos and videos
🔊We received The Best Poster Presentation Award for "Performance Foundations of Parallel & Distributed Reasoning Language Models" at the 3rd EFCL International Workshop on Sustainable AI! 👉 arxiv.org/abs/2608.27046 #HPC #AI @thoefler
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🔊New article published: Performance Foundations of Parallel & Distributed Reasoning Language Models. 👉 arxiv.org/abs/2608.27046 #HPC @CSatETH @thoefler
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This week at @DACconference, we presented "Network design for wafer-scale systems with wafer-on-wafer hybrid bonding" in which we optimize the placement of reticles on the wafers in order to maximize the performance of the wafer-scale network. Paper 👉arxiv.org/abs/2603.05266
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Last week at #SIGIR, Patrick Iff presented “Benchmarking Filtered Approximate Nearest Neighbor Search Algorithms on Transformer-based Embedding Vectors.” We release a dataset with 2.7M transformer-based embeddings and benchmark 11 FANNS methods across diverse filter settings.
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📜Paper 👉 arxiv.org/abs/2507.21989 📚Dataset 👉huggingface.co/datasets/SPCL…

Benchmarking Filtered Approximate Nearest Neighbor Search...

Advances in embedding models for text, image, audio, and video drive progress across multiple domains, including retrieval-augmented generation, recommendation systems, and others. Many of these...

arxiv.org
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📢 Last week at ICML 2026 in Seoul, Golnoosh and Patrik presented "Enabling Uncertainty-Aware Time-Series Forecasting in Federated Learning for Urban Water Dynamics"! 📄Paper: openreview.net/forum?id=jm8D… #ICML #HPC @thoefler @CSatETH
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📢Some more ICML news! Boqian, Qiao, and Patrik presented "When Data Is Scarce: Scaling Sparse Language Models with Repeated Training" in Seoul! 📄Paper: arxiv.org/abs/2606.01155 #HPC @thoefler @CSatETH
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🔊A very interesting PASC 2026 conference! Alexandru Calotoiu contributed to the minisymposium “What the FORTRAN? – Drowning in Waves Edition.” #HPC #MixedPrecision @thoefler @CSatETH #Fortran
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📢At ICML 2026 in Seoul, Qiao, Boqian, and Patrik presented "Memory-Efficient LLM Training with Dynamic Sparsity: From Stability to Practical Scaling"! 📄Paper: arxiv.org/abs/2606.00888 #HPC @thoefler @CSatETH
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Successful #ICML26 week winding down: Learn about (1) weather model scaling laws from Yuejiang, (2) near-optimal quantization from Jiale, (3) sparse data scaling laws from Boqian, (4) algorithm for sparse training from Qiao, and (5) process reward agents byJiwoong, Tomasz et al
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🔊Great news from @SPCL! @thoefler and his team received a European Research Council (ERC) Proof of Concept Grant!🎉 inf.ethz.ch/news-and-events/… #HPC @thoefler @CSatETH

Torsten Hoefler receives ERC Proof of Concept Grant

Building on the success of his ERC-funded research, ETH Zurich Professor Torsten Hoefler has been awarded an ERC Proof of Concept Grant. The funding will support the next steps in turning research...

inf.ethz.ch
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As #ISC26 is coming up, I wrote down thoughts on the central metric in our #HPC and #AI community: flop/s. A flop is a count; flop/s is a rate. FLOPS is yelling, flops is confusing, and “TFLOPS” is how unit symbols go to therapy. htor.inf.ethz.ch/blog/index.… See you in Hamburg!
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📢 Last week at #IPDPS2026, Tommaso Bonato presented our work “Spritz: Path-Aware Load Balancing in Low-Diameter Networks.”🚀 #HPC #collaboration #Microsoft @thoefler @CSatETH 👉arxiv.org/abs/2602.19567
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🔊Last week @KartikLakhotia presented Maciej Besta's work "EvalNet: A Practical Toolchain for Generation and Analysis of Extreme-Scale Interconnects" at #IPDPS26!🚀 👉 arxiv.org/abs/2105.12663 #HPC @thoefler @CSatETH
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📢 At IPDPS 2026 in New Orleans, Mikhail Khalilov presented paper “SecPerf: Demystifying Cost of Confidential HPC”. #IPDPS2026 #HPC #Security @thoefler @CSatETH
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📢 Today at IPDPS 2026, Tommaso Bonato will present "Spritz: Path-Aware Load Balancing in Low-Diameter Networks." 📍 1:30 PM CDT, Salon D. 👋 Come say hi if you're around! 👉 Paper: lnkd.in/dUatcMbM #HPC @thoefler @CSatETH
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📢 Today, Timo Schneider is representing SPCL@ETH as WP lead in Luxembourg to report on the progress of numerical library development for VEC and MLS, two architectures hopefully available soon: 👇 eupilot.eu #eurohpc #eurohpcju #eupilot #HPC @thoefler @CSatETH
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🔊Our paper "Scaling Laws of Global Weather Models" is headed to #ICML2026! 🚀 📖 Full study: arxiv.org/abs/2602.22962 🛰️ #MachineLearning #AI4Earth #AI4S #ScalingLaws @thoefler @CSatETH
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📢 At EuroSys 2026 in Edinburgh, Tommaso Bonato presented 📄REPS paper: dl.acm.org/doi/10.1145/37672… 🎉Thanks to all co-authors! #EuroSys2026 #UltraEthernet #LoadBalancing #RDMA #DatacenterNetworking #HPC @thoefler @CSatETH
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What does it take to bring #cloud elasticity to #HPC without losing performance? @copikmarcin keynote at HPC-AI Swiss Conference shared our work on Acceleration as a Service (#XaaS) with performance-portable containers + #serverless for HPC. Warm reception and great questions!
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Many thanks to the organizers - @harake_hussein, @sflynx20, and the entire @cscsch for the invitation and putting together such a well-run, thought-provoking conference @hpccouncil ! Keynote slides 👉 mcopik.github.io/assets/pdf/… XaaS Paper 👉arxiv.org/abs/2509.17914
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