CC_MODE 3仿真异常终止：assert failed

各位老师好，请教个仿真异常终止的问题：
修改： astra-sim-alibabacloud/inputs/config/SimAI.conf中CC_MODE 3
启动：AS_SEND_LAT=3 AS_NVLS_ENABLE=1 ./bin/SimAI_simulator -t 96 -w ./aicb/results/workload/None-gpt_7B-world_size1024-tp4-pp1-ep1-gbs512-mbs1-seq4096-MOE-False-GEMM-False-flash_attn-True.txt -n ./HPN_7_0_1024_gpus_8_in_one_server_with_single_plane_100Gbps_A100 -c astra-sim-alibabacloud/inputs/config/SimAI.conf

输出：

info: no input grad collective for layer: grad_gather
Layer issue wg all gather at tick: 1027608530
chunk size is: 3261071360 , size is: 3261071360 , layer_num is: 0 , node: 0
info: all-gather weight grad collective issued for layer: grad_gather, involved dimensions:  0, 1, 1, 1, 1, 1, 1, 1, 1, 1,
pass: 0 finished at time: 1027608530
assert failed. cond="assert failed. cond="m_ptr", msg="Attempted to dereference zero pointer", m_ptrassert failed. cond="m_ptr", msg="Attempted to dereference zero pointerassert failed. cond="", msg="Attempted to dereference zero pointer", assert failed. cond="+1.027613444sm_ptr", msg="Attempted to dereference zero pointer", +1.027613444s 1216 file=/data/SimAI/astra-sim-alibabacloud/extern/network_backend/ns3-interface/simulation/build/include/ns3/ptr.h, line=649
terminate called without an active exception
assert failed. cond="m_ptr", msg="Attempted to dereference zero pointer+1.027613444 1194m_ptr", assert failed. cond="Aborted (core dumped)

万分感谢！

Reproduce the command with astra-sim-alibabacloud/inputs/config/SimAI.conf set to CC_MODE 3 and inspect the network backend at extern/network_backend/ns3-interface/simulation/build/include/ns3/ptr.h:649. Trace the failed pointer during the grad_gather/all-gather weight-grad path; done means the workload completes without the zero-pointer assertion.