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[GH-ISSUE #279] Ask a question #203

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opened 2026-10-26 09:56:33 +00:00 by bsakaguchi · 0 comments
bsakaguchi commented 2026-10-26 09:56:33 +00:00
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Originally created by @kzlxd on GitHub (Jul 4, 2025).
Original GitHub issue: https://github.com/deepseek-ai/DeepEP/issues/279

    // Shift cached head
    send_nvl_head += src_rdma_channel_prefix * NUM_MAX_NVL_PEERS + dst_nvl_rank;

I would like to ask why send_nvl_head is so offset， Each nvl rank needs to receive tokens from different rdma ranks. Why not offset it according to num_tokens_to_recv_from_rdma?

Originally created by @kzlxd on GitHub (Jul 4, 2025). Original GitHub issue: https://github.com/deepseek-ai/DeepEP/issues/279 // Shift cached head send_nvl_head += src_rdma_channel_prefix * NUM_MAX_NVL_PEERS + dst_nvl_rank; I would like to ask why send_nvl_head is so offset， Each nvl rank needs to receive tokens from different rdma ranks. Why not offset it according to num_tokens_to_recv_from_rdma?
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