Loading…
OpenSearchCon India 2026
15-16 June 2026 | Mumbai, India
View More Details & Registration

IMPORTANT NOTE: Timing of sessions and room locations are subject to change.

The Sched app allows you to build your schedule but is not a substitute for your event registration. In order to attend OpenSearchCon Europe 2026, please visit our website to register.

This schedule is automatically displayed in India Standard Time (IST | UTC+5:30). To see the schedule in your preferred timezone, please select from the drop-down located at the bottom of the menu to the right.
Tuesday June 16, 2026 10:30am - 11:10am IST
Building billion-scale vector indexes on OpenSearch has traditionally meant days of CPU-intensive processing. OpenSearch 3.0 changes this with GPU-accelerated index building using CAGRA and auto-optimize for automated hyperparameter tuning.

This session shares hands-on lessons building billion-scale vector indexes on OpenSearch 3.0. We cover the end-to-end journey: selecting embedding models, choosing between HNSW and IVF algorithms, leveraging GPU-accelerated builds for up to 9x faster indexing, and using auto-optimize to balance recall, latency, and cost without manual tuning of ef_construction and M parameters.

We dive into production realities including quantization strategies (scalar, product, binary) to reduce memory footprint, disk-optimized vector search for cost-sensitive workloads, and hybrid search combining vector similarity with BM25 keyword matching. We cover operational patterns for zero-downtime index rebuilds and monitoring vector search performance.

Attendees leave with a decision framework for vector index configuration, benchmarks across deployment sizes, and guidance on when GPU acceleration pays off versus CPU-only approaches.
Speakers
avatar for Chintan Agrawal

Chintan Agrawal

Solution Architect, Amazon Web Service
Chintan Agrawal is a Solutions Architect with over 7 years of experience, with a specialization in Analytics and Healthcare domain.He possesses a strong enthusiasm for assisting clients in discovering valuable insights from their data. Through his expertise, he constructs innovative... Read More →
Tuesday June 16, 2026 10:30am - 11:10am IST
205

Sign up or log in to save this to your schedule, view media, leave feedback and see who's attending!

Share Modal

Share this link via

Or copy link