docs(mig): document reservation-first Dynamic MIG - #794
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Replace the legacy geometry description in Next docs with the v2.10 profile allowlist, placement reservation, per-Pod GI/CI lifecycle, restart adoption, migration, and current metric contracts. Signed-off-by: Saiyam Pathak <saiyam911@gmail.com>
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📝 WalkthroughWalkthroughThe documentation replaces legacy Dynamic MIG templates and ChangesDynamic MIG v2.10
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🔵 Low · up to The documentation update is mergeable with owner awareness: one setup link is stale, and the example wording and GPU identifiers could mislead users about profile selection and placement-dependent results. Possibly related PRs
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In `@docs/userguide/nvidia-device/dynamic-mig-support.md`:
- Line 28: Update the HAMi Chart setup link in the introductory installation
guidance, replacing the stale README fragment with the current valid HTTPS Quick
Start or maintained deployment-guide URL. Keep the surrounding installation and
operatingmode instructions unchanged.
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docs/developers/dynamic-mig.mddocs/userguide/nvidia-device/dynamic-mig-support.mddocs/userguide/nvidia-device/examples/dynamic-mig-example.mdi18n/zh/docusaurus-plugin-content-docs/current/developers/dynamic-mig.mdi18n/zh/docusaurus-plugin-content-docs/current/userguide/nvidia-device/dynamic-mig-support.mdi18n/zh/docusaurus-plugin-content-docs/current/userguide/nvidia-device/examples/dynamic-mig-example.md
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thorough and consistent with the #793 lab: annotation names, metric rename with the legacyMetrics fallback, upgrade ordering and the mig manager boundary all line up. frozen versioned docs untouched, correct. the scoped zh notes are a pragmatic interim, please open a follow up issue for the full zh retranslation so the v2.9 body text does not linger on next.
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| HAMi now supports dynamic MIG using mig-parted to adjust MIG devices dynamically, including: | ||
| HAMi v2.10 uses a reservation-first, topology-aware implementation of dynamic NVIDIA Multi-Instance GPU (MIG). It does not select and switch a predefined whole-GPU geometry. Instead: |
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coordination: #713 adds a component tag block at the top of this same page and dedupes the a100 list. this rewrite will conflict, agree on an order.
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| This example will allocate `2g.10gb * 2` for A100-40GB-PCIE device or `1g.10gb * 2` for A100-80GB-SXM device. | ||
| This Pod requests two MIG devices with at least 8,000 MiB each. The `nvidia.com/vgpu-mode: "mig"` annotation requires Dynamic MIG, and the optional `binpack` policy asks HAMi to prefer packing the allocations. |
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heads up: #806 renames this file to assign-task-to-mig-instance.md. whoever merges second rebases.
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ok will wait on getting things merged and will get this sorted.
The README no longer has the enabling-vgpu-support-in-kubernetes section; link to the website's own online installation guide instead. Signed-off-by: Saiyam Pathak <saiyam911@gmail.com>
v2.10.0 is out and these pages document its behavior, so the chart references point at the tag instead of master, keeping the versioned snapshot accurate as master moves on. Signed-off-by: Saiyam Pathak <saiyam911@gmail.com>
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The snapshot was cut before the v2.10 feature documentation PRs (Project-HAMi#794, Project-HAMi#734, Project-HAMi#759, Project-HAMi#775) merged, so it described v2.9 behavior for flagship features. Keep only the changelog and the homepage release badge for now; re-cut the snapshot once those PRs land. Signed-off-by: Jimmy Song <jimmy@dynamia.ai>
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| :::important HAMi v2.10 当前行为 | ||
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| 本说明仅用于界定 v2.10 的当前行为；下方保留的 `knownMigGeometries`、整卡 MIG 模板切换、`mig-parted` 和旧 `nodeGPUMigInstance` 指标内容描述的是 v2.9 及更早实现，不适用于 v2.10。 |
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this banner says everything below is v2.9 and does not apply, but line 69 in the same file now points at the v2.10.0 chart. a reader following the body will still configure knownMigGeometries. is a banner enough here?
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| HAMi now supports dynamic MIG using mig-parted to adjust MIG devices dynamically, including: | ||
| HAMi v2.10 uses a reservation-first, topology-aware implementation of dynamic NVIDIA Multi-Instance GPU (MIG). It does not select and switch a predefined whole-GPU geometry. Instead: |
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#815 also edits this file, in the version of it that this pr deletes. one of the two will need a rebase. which should land first?
| - v2.10 使用预留优先模型。`migProfileAllowlist` 只定义集群允许使用的配置文件名称；显存、算力、切片数量及合法 placement 由每个节点通过 NVML 发现，并以 `migProfiles` 发布给调度器。当前 Chart 还包含 **RTX PRO 6000 Blackwell Server Edition** 的 `1g.24gb`、`2g.48gb` 和 `4g.96gb`。 | ||
| - 调度器在绑定 Pod 前预留物理 GPU、profile 和 placement，并写入内部注解 `hami.io/vgpu-mig-allocations`。device plugin 在 `Allocate` 阶段按该预留创建每个 Pod 的 GI/CI，随后补充 MIG UUID、GI ID 和 CI ID；用户不得自行创建或修改此注解。 | ||
| - Pod 删除、成功或失败后，device plugin 会回收该 Pod 对应的 CI/GI。重启时，具有完整运行时身份的活动实例会经 NVML 校验后被接管；旧模板/slot 标识无法安全接管。 | ||
| - 当前 MIG 指标为 `hami_node_gpu_mig_instance_info`，包含 profile、placement、MIG UUID、GI ID 和 CI ID。仅当 `legacyMetrics: true` 时才额外输出旧指标 `nodeGPUMigInstance`，Chart 默认值为 `false`。 |
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the zh page now names hami_node_gpu_mig_instance_info while its own metrics block further down still prints nodeGPUMigInstance. should that block move behind the legacyMetrics note too?
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| "containerIndex": 0, |
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checked this against pkg/device/nvidia/mig_allocations.go: the annotation key, all eight field names and their order match, and the three omitempty pointers line up with the runtime identity being absent at first. same for MigProfile and the scheduler metric. nothing to change here.
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| GPU Operator may continue to provide the NVIDIA driver, Container Toolkit, DCGM, and other infrastructure. Before HAMi assumes mutation ownership, stop MIG Manager reconciliation and ensure a controller cannot recreate it or reapply `nvidia.com/mig.config`. Deleting one MIG Manager Pod without changing its controller policy does not establish that boundary. | ||
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| See the [Dynamic MIG user guide](../userguide/nvidia-device/dynamic-mig-support) for the current Chart allowlist, migration checklist, workload example, and validation commands. |
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doc links in this repo carry the .md extension. does this one still resolve from the developers folder?
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What type of PR is this?
/kind documentation
What this PR does / why we need it:
The current website still describes the v2.9
knownMigGeometriesand whole-GPU template workflow. HAMi #2378 replaced that with a reservation-first Dynamic MIG implementation for v2.10.This updates the Next documentation to cover:
migProfileAllowlistand NVML-discovered capacity and placements;hami.io/vgpu-mig-allocations;hami_node_gpu_mig_instance_infometric;The workload example now explains profile selection and placement-dependent Pending behavior. The Chinese current pages include a scoped v2.10 behavior note so readers are not misled by the retained v2.9 translation.
Frozen versioned documentation is unchanged.
Related work:
Testing:
Both English and Chinese builds pass.
AI assistance disclosure:
AI assistance was used to compare the website pages with the current HAMi architecture and migration documents. I reviewed the resulting contracts, examples, links, and rendered build.
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