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GPU Memory Hard Isolation with KAI Scheduler and HAMi: How It Works and How to Verify It

· 9 min read

The companion post HAMi-core adopted by NVIDIA KAI Scheduler already introduces KAI Scheduler and the collaboration behind this integration. This post skips that background and focuses on one question: when KAI Scheduler places two Pods on one GPU, does HAMi-core actually enforce each Pod's memory quota?

We verified the currently documented combination—KAI Scheduler v0.17.0 and kai-resource-isolator 1.1.0-chart—on GKE 1.35/COS/CDI. Both Pods shared the same NVIDIA T4, each saw a 4147 MiB ceiling, a 3 GiB CUDA allocation succeeded, and a cumulative 5 GiB allocation failed. The optional monitor also exported live limit and usage metrics for both Pods.

About the captured output

The UUID, memory ceiling, CUDA allocation results, and monitor metrics below came from the verified GKE run. Resource suffixes and addresses will differ in another cluster.

HAMi at KubeCon + CloudNativeCon India 2026: Bringing GPU Sharing to the Community

· 6 min read
HAMi Community

Held on June 18-19, 2026, in Mumbai, India, KubeCon + CloudNativeCon India 2026 brought together cloud native practitioners, platform engineers, AI infrastructure teams, and open source contributors from across the ecosystem. As AI emerged as one of the conference's defining themes, HAMi showcased how Kubernetes-native GPU sharing helps organizations maximize accelerator utilization while maintaining workload isolation and operational flexibility.

From the opening keynote to live booth demonstrations and technical discussions with engineering teams, the event highlighted a growing industry focus: making expensive GPU infrastructure practical for multi-tenant AI workloads.

HAMi-core Adopted by NVIDIA KAI Scheduler: GPU Sharing Enters the Hard-Isolation Era

· 10 min read
HAMi Community

The integration target here is strictly HAMi-core, not the full HAMi platform. KAI Scheduler keeps its own scheduling capability and brings in HAMi-core to provide GPU memory isolation.

In June 2026, two core PRs were officially merged into the NVIDIA KAI Scheduler main branch. HAMi's GPU memory hard isolation shipped as a built-in feature starting with KAI Scheduler v0.16.4. Cloud-native GPU scheduling has officially moved from "cooperative sharing" into the "hard isolation" era.

Validating AI Agent-Driven GPU Management on Kubernetes with HAMi and kagent

· 6 min read

Source: mesutoezdil.substack.com
GitHub Repo: kagentWithHami
Chinese translation by Jimmy Song, originally published on WeChat


One physical NVIDIA L40S virtualized into 10 vGPUs with HAMi. An AI Agent deployed as a Kubernetes CRD via kagent. Agent-to-Agent delegation, GPU pod creation, overcommit protection - all driven by Llama 3.3 70B with no closed-source dependencies.

HAMi v2.9.0 Release: Ascend User-Space Partitioning, DRA Generally Available, and Scheduler Ecosystem Expansion

· 12 min read
HAMi Community

The HAMi community is proud to announce the official release of HAMi v2.9.0. This represents a milestone version in terms of heterogeneous device virtualization depth, scheduler ecosystem expansion, and Kubernetes native standards alignment.

v2.9.0 introduces the Ascend 910C HAMi-core mode, HAMi-DRA general availability, and Volcano vGPU upgrade to v0.19, along with systematic enhancements in observability, security, and stability. This release also welcomes 19 new contributors for the first time.

This article provides a detailed overview of the major updates in v2.9.0.

Introducing HAMi WebUI: GPU Monitoring Dashboard for Kubernetes

· 6 min read
HAMi Community

Managing GPU resources in Kubernetes has long been a "blind spot" for operators. You know GPUs are being used, but answering questions like "which node has idle capacity?", "is this workload actually utilizing its allocated GPU?", or "what is the overall cluster utilization trend?" often requires piecing together kubectl get, Prometheus PromQL, and log output.

Today, the HAMi community is introducing HAMi WebUI - an open-source GPU monitoring dashboard that puts your entire GPU cluster into a single, visual interface.

HAMi WebUI v1.1.0 is now available as the first official major release.

Together with the core HAMi scheduler, WebUI completes the full loop: from GPU scheduling to visual observability.

From Device Plugin to DRA: GPU Scheduling Paradigm Upgrade and HAMi-DRA Practice Review

· 5 min read
HAMi Community

KCD Beijing 2026 was one of the largest Kubernetes community events in recent years.

Over 1,000 people registered, setting a new record for KCD Beijing.

The HAMi community not only gave a technical talk but also set up a booth, engaging deeply with developers and enterprise users from the cloud-native and AI infrastructure fields.

The topic of this talk was:

From Device Plugin to DRA: GPU Scheduling Paradigm Upgrade and HAMi-DRA Practice

This article combines the on-site presentation and slides for a more complete technical review. Slides download: GitHub - HAMi-DRA KCD Beijing 2026.

CNCFHAMi is a CNCF Incubating project