How to use thd format qkv with cp + packed_seq_params

[Wraythh]

If I have a dataset with sequence lengths of [4, 8, 6, 10], and I use cp2 to split the data, I observe that te performs the operation cu_seqlen_q / cp_size on cu_seqlen_q. This means I need to split each subsequence in the sequence into two subsequences and then concatenate them, resulting in two subsequences of [2, 4, 3, 5]. Should I pass cu_seqlen_q as [0, 4, 12, 18, 20] to both cp_rank instances in this case, or is there an issue with this usage?