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iRoPE (-p > 8192) #4063

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3 changes: 2 additions & 1 deletion fbgemm_gpu/experimental/gen_ai/src/kv_cache/kv_cache.cu
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Expand Up @@ -3003,7 +3003,8 @@ at::Tensor quantize_qkv_per_head(
dim3 block_size(kThreadsPerWarp, kWarpsPerBlock);
dim3 grid_size(cuda_calc_xblock_count(num_warps, kWarpsPerBlock));

auto scale_q = at::zeros({B, N_KVH_L}, XQ_O.options().dtype(at::kFloat));
auto scale_q =
at::zeros({cache_K.size(0), N_KVH_L}, XQ_O.options().dtype(at::kFloat));
float* const scale_q_ptr = scale_q.data_ptr<float>();
// Launch the kernel
// TODO: Launch the kernel with B_T * N_H_L blocks only in case of decode.
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