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rms_norm_fp8_noweight_fp16：计算流程与优化

完整代码

void rms_norm_fp8_noweight_fp16(const __half *x, __nv_fp8_e4m3 *out, int seq_len, int dim, const float *d_scale, cudaStream_t stream) { rms_norm_fp8_noweight_kernel<<<seq_len, 256, 0, stream>>>(x, out, seq_len, dim, d_scale); }

// ── RMSNorm → FP8 with d_scale, no weight (norm weight baked into GEMM// weights) ── Verbatim copy of production rms_norm_fp8_static_k. NOT