Towards Data Science
Friday, June 19, 2026
Anubhab Banerjee
GPU-Resident Top-K for Agentic RAG: I Built a CUDA Kernel So My Retrieval Step Would Stop Bouncing Off the GPU

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The PCIe transfer latency is silently bottlenecking your agentic inference.
Here is how building a custom device-resident vector search kernel bypasses the CPU to unlock deterministic microsecond tail latencies.
The post GPU-Resident Top-K for Agentic RAG: I Built a CUDA Kernel So My Retrieval St...
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