Here are the data structures with brief descriptions:
  act_q | Keeps track of posted send or recv operations |
| analysis_msg | |
| analysis_state | |
| avlNode | |
| buddy_list | |
| buddy_list_bucket | |
| io_event_store | |
| io_lp_store | |
| io_lptype | |
| io_partition | |
| lp_metadata | |
| LZ4_stream_t | |
| LZ4_stream_t_internal | |
| LZ4_streamDecode_t | |
| LZ4_streamDecode_t_internal | |
| mem_pool | |
| model_metadata | |
| model_sample_data | |
| phold_message | |
| phold_state | |
| sample_metadata | |
| st_event_data | |
| st_kp_stats | |
| st_lp_stats | |
| st_model_types | |
| st_pe_stats | |
| st_stats_buffer | |
| tw_bf | Reverse Computation Bitfield |
| tw_event | Event Stucture |
| tw_eventq | |
| tw_hash | |
| tw_kp | |
| tw_lp | LP State Structure |
| tw_lptype | Function Pointers for ROSS Event Handlers |
| tw_optdef | |
| tw_out | Rollback-aware output mechanism |
| tw_pe | Holds the entire PE state |
| tw_petype | Virtual Functions for per PE ops |
| tw_pq | |
| tw_rng | |
| tw_rng_stream | |
 tw_statistics | Statistics tallied over the duration of the simulation |
