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numa-programming

Use when detecting NUMA topology, binding processes with numactl, using the libnuma API, building NUMA-aware data structures, or measuring remote memory access penalties.

.devin/skills/numa-programming/SKILL.md

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Sep 28, 2026
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Apache-2.0

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# NUMA programming

## Contract

| Field | Bound contract |
|---|---|
| Trigger | NUMA-aware programming or debugging on multi-socket Linux systems. |
| Authority | Read-only. No source or remote mutation. Chat output only. |
| Side effect | Emits a structured guidance report to chat. |
| Done | The report shows the NUMA topology, the right `numactl` binding, libnuma API usage, a per-node data structure pattern, remote access diagnosis, and a decision tree. |

## Inputs

1. **Target system** (required): a multi-socket Linux host or VM with NUMA exposed.