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+ === Llama Context Parallel Training Script (bluscriptCP) ===
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+ [CP attn fusion] split (Stage-2 rope-once + Stage-3 Hopper causal-attn kernels)
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+ [watchdog] collective no-progress deadline 600 s, poll 2 s (BLU_NCCL_WATCHDOG=0 to disable)
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+ [watchdog] collective no-progress deadline 600 s, poll 2 s (BLU_NCCL_WATCHDOG=0 to disable)
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+ ================ Configuration (bluscriptCP) ================
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+ d_model/layers : 1536 / 36
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+ q/kv heads : 12 / 4 (G=3, hd=128)
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+ ffn_hidden : 4096 (SwiGLU)
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+ context_length : 65536
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+ vocab_size : 50304 tying=0
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+ B x T : 1 x 65536
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+ world_size : 8 (dp=1 x cp=8)
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+ CP_ATTN_MODE : ring (load_balance=HeadTail)
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+ global_batch : 65536 (grad_accum=1)
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+ precision : bf16 Linears + fp32 norms/residual/logits (fp32 master weights in AdamW) [mask=15 QKV WO MLP HEAD]
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+ max_lr/min_lr : 0.0006 / 6e-05
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+ warmup/steps : 91 / 1 (cosine, no stable phase)
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+ checkpointing : true (ckpt_freq=50, dir=checkpoints_bluscriptcp)
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+ =============================================================
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+ Initializing model on CUDA device 0...
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+ [YaRN] build_rope_cache: seq_len=65536 hd=128 scale=2.000 low=24 high=42 m=1.0693
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+ [InitFrom] weights loaded from /root/Adhi/BluTrain/dist/Context_Parallelism/checkpoints_bluscriptcp/rank_0/cliff_g1400.ckpt (base step 200, loss 2.42209) -- optimizer state and RNG intentionally NOT restored; pair with CP_REWARMUP
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+ Parameters: 1060624896
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+ Parameters per GPU: 1060624896
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+ max_steps: 1
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+ warmup_steps: 91
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+ [ZeRO-1 v2] build=v2.4 supports: rs+ag | can-symmetric-window | can-fp32-reduce | can-bf16-reduce | can-reshard-v1-ckpt
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+ [ZeRO-1 v2] ACTIVE: reduce_dtype=bfloat16 (= param dtype) symmetric=off overlap=-/-
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+ [ZeRO-1 v2] zero1-v2 reduce-scatter/all-gather (standard memory)
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+ [ZeRO-1 v2] params=983236608 padded=983236608 W=8 shard=122904576 | 38 buckets of 50 MB (3276800 elems/rank/bucket) | optimizer state/GPU: 1406.53 MB (vs 11252.2 MB unsharded)
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+ [ZeRO-1 v2] NOTE: symmetric memory is NOT active — collectives will run NCCL's ring/tree path, not NVLS. Create the process group with MemoryMode::Symmetric (and NCCL >= 2.27) to enable it.
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+ [ZeRO-1 v2] build=v2.4 supports: rs+ag | can-symmetric-window | can-fp32-reduce | can-bf16-reduce | can-reshard-v1-ckpt
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+ [ZeRO-1 v2] ACTIVE: reduce_dtype=float32 (= param dtype) symmetric=off overlap=-/-
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+ [ZeRO-1 v2] zero1-v2 reduce-scatter/all-gather (standard memory)
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+ [ZeRO-1 v2] params=77388288 padded=77388288 W=8 shard=9673536 | 6 buckets of 50 MB (1638400 elems/rank/bucket) | optimizer state/GPU: 110.705 MB (vs 885.639 MB unsharded)
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+ [ZeRO-1 v2] NOTE: symmetric memory is NOT active — collectives will run NCCL's ring/tree path, not NVLS. Create the process group with MemoryMode::Symmetric (and NCCL >= 2.27) to enable it.
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+ [ZeRO-1] variant=v2 reduce-scatter/all-gather groups=2 [bfloat16/983236608] [float32/77388288]
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+ [ZeRO-1] DataParallel is DISABLED (both would double-reduce)
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+ [precision] bf16 params=217, all with fp32 master weights
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+ found 12 shards for split train
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+ found 1 shards for split val
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+ [Resume] latest run 2 already complete at step 200; starting a new run.
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+ Saving logs to: CP_BluScreipt_Training_logs/CP_Training_log7.csv (run 7)
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+ [rope_theta] 500000 compiled default (no sidecar -- legacy run, assuming it was trained at this base)
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+ Checkpointing: ON -> checkpoints_bluscriptcp/blumodelcp_run7_step_<N>.ckpt (every 50 steps, keep 6)
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+ [eval] PPL-vs-position: 8 windows (skip=0) x B=1 Tglobal=65536 Tlocal=8192 cp=8 (YARN_SCALE via env) -> mixcont_logs/ppl_degraded1400.csv
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+ [eval] per-position NLL: GPU
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+ [CP ring P2P] OVERLAP: dedicated non-blocking stream
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+ [eval] window 1/8 done
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+ [eval] window 2/8 done
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+ [eval] window 3/8 done
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+ [eval] window 4/8 done
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+ [eval] window 5/8 done
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+ [eval] window 6/8 done
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+ [eval] window 7/8 done
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+ [eval] window 8/8 done
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+ [eval] wrote mixcont_logs/ppl_degraded1400.csv (65536 positions, 8 windows)