For 深層学習エンジニアおよび機械学習プラットフォーム担当者

GPUSOROBANにおける多重GPU P2P通信ストールとPCIeトポロジ競合の解決

物理NUMAソケット配置に対するCUDA_VISIBLE_DEVICESの不整合やコンテナランタイムの共有メモリ/dev/shm容量不足を即時に検出します。

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GPUSOROBANマルチGPU障害ログを再生

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What a useful evaluation should establish

ハードウェアの初期不良とコンテナ/環境変数の設定不備を明確に分離し、無駄なインスタンス交換を防止します。

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Inside Denpex

See the evidence, not just the claim

Follow the causal chain, inspect the quoted evidence and prepare the next handoff. These actual product captures use founder-account examples and the VS Code extension, with the source identified under each image. Open a capture to inspect it at full size.

Denpex founder-account example: a causal graph connects an Xid 48 ECC event to a rank exit and downstream collective failures, with quoted evidence for each stage. — Live founder-account capture from the bundled NCCL/ECC example. Follow the hardware event, rank exit and downstream symptoms with a supporting log quote at each stage.Inspect original image

Denpex hardware handoff summary asks the operator to capture diagnostic evidence and verify RMA eligibility with the vendor. — Actual hardware handoff summary from the same founder-account example. Capture diagnostic evidence before an approved reset, then confirm RMA eligibility with the vendor.Inspect original image

Denpex historical example says a collective timeout does not establish the initiating rank, cause or failure domain and requests distinguishing evidence before a remedy. — Founder-account example restored from history. The original timeout remains unattributed, and the UI keeps the missing-evidence assessment visible.Inspect original image

Denpex VS Code extension displaying a bundled OOM-before-NCCL example, matched log evidence, verification guidance and an investigation handoff. — Actual VS Code extension capture of the bundled OOM-before-NCCL example. Review matched log evidence, verification guidance and the investigation handoff without leaving the editor.Inspect original image

Failure Signature Triage

GPUSOROBAN (Highreso) - Observed Runtime Evidence

GPUSOROBAN 公式サービス案内

Incident pattern summary

GPUSOROBANの専用GPUサーバー上でPyTorch DDPプロセスがピアアクセス不整合により起動直後にクラッシュ。NCCL_P2P_DISABLE設定またはNUMAアフィニティの最適化手順を提示します。

Terminal traceback excerpt (GPUSOROBAN (Highreso))

RuntimeError: CUDA error: peer access is not supported between these two devices
terminate called after throwing an instance of 'c10::Error'
[E 2026-10-28 02:41:10.512901 19284 orted] [node01:19284] mca_oob_tcp_peer_try_connect: connect to 192.168.10.5:41920 failed, retrying...