diff --git a/byte_micro_perf/backends/utils.py b/byte_micro_perf/backends/utils.py
index 7ec9684d..36ee634e 100644
--- a/byte_micro_perf/backends/utils.py
+++ b/byte_micro_perf/backends/utils.py
@@ -36,6 +36,9 @@ def dump_communication_ops_report(
     mb = dtype_size * size / 1024 / 1024
     algo_bw = dtype_size * size / latency / 1e3
     bus_bw = algo_bw * (group_size - 1) / group_size
+
+    if op_name == "broadcast":
+        bus_bw = algo_bw
     if op_name == "allreduce":
         bus_bw *= 2