In reply to chr_sue:
I got the below display:
UVM_INFO @ 0: reporter [UVMTOP] UVM testbench topology:
Name Type Size Value
uvm_test_top base_test - @2894
env environment - @2976
simple_ag simple_agent - @3024
simple_drvr simple_driver - @4579
rsp_port uvm_analysis_port - @4678
seq_item_port uvm_seq_item_pull_port - @4629
simple_mntr simple_monitor - @4658
simple_seqr simple_sequencer - @3941
rsp_export uvm_analysis_export - @3998
seq_item_export uvm_seq_item_pull_imp - @4548
arbitration_queue array 0 -
lock_queue array 0 -
num_last_reqs integral 32 'd1
num_last_rsps integral 32 'd1