# GPU Test Report

- **Date:** 2026-05-23T07:56:26.791384
- **Host:** aikubeworker0012

## Overall Acceptance Verdict

**Result: FAIL**

Missing required evidence:
- GPU Info
- Health Check
- Memory Bandwidth
- Compute Throughput
- NVLink/NVSwitch
- NCCL
- Stress Test
- RDMA
- DCGM
- Training

## Summary

| Test | Result |
|------|--------|
| Multi-node NCCL | FAIL |

## Multi-node NCCL / Cross Leaf

Source: nccl-tests-mpirun | Mode: large-message-nccl-2.27.7

- **Hosts:** nccl-gpu-1(172.72.8.12), nccl-gpu-2(172.72.8.16)
- **Preflight:** PASS

### Multi-node NCCL allreduce

| Topology | Peak Bus BW | Peak Size | Avg Bus BW | Threshold | Status |
|----------|-------------|-----------|------------|-----------|--------|
| 2 nodes x 8 GPUs NCCL 2.27.7 16G | 237.86 GB/s | 16G | 238.56 GB/s | >= 480 GB/s | FAIL |

| Topology | NCCL Network | GPU Direct RDMA | GDR Enabled HCAs | GDR Disabled HCAs |
|----------|--------------|-----------------|------------------|-------------------|
| 2 nodes x 8 GPUs NCCL 2.27.7 16G | IB | ENABLED | mlx5_0, mlx5_1, mlx5_6, mlx5_7 | - |

| Topology | Return Code | Error / Output Tail |
|----------|-------------|---------------------|
| 2 nodes x 8 GPUs NCCL 2.27.7 16G | 0 | aikubeworker0016:1019342:1020412 [4] NCCL INFO comm 0x559f14871c30 rank 12 nranks 16 cudaDev 4 busId 9a000 - Destroy COMPLETE # Out of bounds values : 0 OK # Avg bus bandwidth    : 238.555  # # Collective test concluded: all_reduce_perf #   |

### Multi-node NCCL alltoall

| Topology | Peak Bus BW | Peak Size | Avg Bus BW | Threshold | Status |
|----------|-------------|-----------|------------|-----------|--------|
| 2 nodes x 8 GPUs NCCL 2.27.7 16G | 28.62 GB/s | 16G | 28.62 GB/s | >= 75 GB/s | FAIL |

| Topology | NCCL Network | GPU Direct RDMA | GDR Enabled HCAs | GDR Disabled HCAs |
|----------|--------------|-----------------|------------------|-------------------|
| 2 nodes x 8 GPUs NCCL 2.27.7 16G | IB | ENABLED | mlx5_0, mlx5_1, mlx5_6, mlx5_7 | - |

| Topology | Return Code | Error / Output Tail |
|----------|-------------|---------------------|
| 2 nodes x 8 GPUs NCCL 2.27.7 16G | 0 | E aikubeworker0016:1020609:1021756 [5] NCCL INFO comm 0x55f920e55d90 rank 13 nranks 16 cudaDev 5 busId ab000 - Destroy COMPLETE # Out of bounds values : 0 OK # Avg bus bandwidth    : 28.6222  # # Collective test concluded: alltoall_perf #   |

**Overall: FAIL**

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*Generated by GPU Test Suite v0.2.0*