### What this PR does / why we need it? force with_prefill true after allreduce in kv producer. This is a backport of #3768 and #3849 --------- Signed-off-by: liziyu <liziyu16@huawei.com>
### What this PR does / why we need it? force with_prefill true after allreduce in kv producer. This is a backport of #3768 and #3849 --------- Signed-off-by: liziyu <liziyu16@huawei.com>