# GPU Test Report

- **Date:** 2026-05-23T07:46:11.464439
- **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: diagnostic

- **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 diagnostic | 67.42 GB/s | 256M | 67.50 GB/s | >= 480 GB/s | FAIL |

| Topology | NCCL Network | GPU Direct RDMA | GDR Disabled HCAs |
|----------|--------------|-----------------|-------------------|
| 2 nodes x 8 GPUs diagnostic | IB | DISABLED | mlx5_0, mlx5_1, mlx5_6, mlx5_7 |

| Topology | Return Code | Error / Output Tail |
|----------|-------------|---------------------|
| 2 nodes x 8 GPUs diagnostic | 0 | orker0016:986293:986293 [1] NCCL INFO comm 0x563abe94c350 rank 9 nranks 16 cudaDev 1 busId 2a000 - Destroy COMPLETE aikubeworker0016:986292:986292 [0] NCCL INFO comm 0x560ffac51160 rank 8 nranks 16 cudaDev 0 busId 18000 - Destroy COMPLETE   |

### Multi-node NCCL alltoall

| Topology | Peak Bus BW | Peak Size | Avg Bus BW | Threshold | Status |
|----------|-------------|-----------|------------|-----------|--------|
| 2 nodes x 8 GPUs diagnostic | 9.56 GB/s | 256M | 9.55 GB/s | >= 75 GB/s | FAIL |

| Topology | NCCL Network | GPU Direct RDMA | GDR Disabled HCAs |
|----------|--------------|-----------------|-------------------|
| 2 nodes x 8 GPUs diagnostic | IB | DISABLED | mlx5_0, mlx5_1, mlx5_6, mlx5_7 |

| Topology | Return Code | Error / Output Tail |
|----------|-------------|---------------------|
| 2 nodes x 8 GPUs diagnostic | 0 | TE aikubeworker0012:2141982:2141982 [4] NCCL INFO comm 0x55d0bf9c6a00 rank 4 nranks 16 cudaDev 4 busId 9a000 - Destroy COMPLETE # Out of bounds values : 0 OK # Avg bus bandwidth    : 9.55234  # # Collective test concluded: alltoall_perf #   |

**Overall: FAIL**

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*Generated by GPU Test Suite v0.2.0*