Internal Error: Sub-system: VPR20KMAIN, File: /quartus/fitter/vpr20k/vpr_common/place

Altera_Forum · ‎03-06-2010

Ahhh! I'm getting this error during the fitter register retiming step every time I compile!

I saw a post on Altera's KnowledgeBase regarding this error (http://www.altera.com/support/kdb/solutions/rd12222009_898.html); (http://www.altera.com/support/kdb/solutions/rd12222009_898.html%29;) I followed the advice but it didn't solve the problem.

Has anyone else had this error? My project compiled fine before I added LogicLock regions.

Tool: Quartus II 9.1 SP1

Chip: Stratix IV GX

General config: 32 rectangular LogicLock regions, each with a child region.


Info: Starting physical synthesis algorithm register retiming
Internal Error: Sub-system: VPR20KMAIN, File: /quartus/fitter/vpr20k/vpr_common/place_constraints.c, Line: 1698
Internal Error
Stack Trace:
     0x2034: FSYN_ENV::vpr_qi_do_timing_analysis_and_incremental_placement_for_fsyn + 0x34 (fitter_fsyn)
     0x6429: CSYN_EXPERT::operator= + 0x4749 (DB_CSYN)
    0x44b9a: CSYN_EXPERT::run_single_algorithm + 0x2ba (DB_CSYN)
    0x4c8d0: CSYN_EXPERT::is_atom_modified_for_icp + 0x7b20 (DB_CSYN)
    0x43c18: CSYN_EXPERT::run_flow + 0xe8 (DB_CSYN)
    0x42631: CSYN_EXPERT::run_fsyn_user_option_flow + 0x221 (DB_CSYN)
    0x4320f: CSYN_EXPERT::late_fsyn_flow + 0x18f (DB_CSYN)
    0x432cc: CSYN_EXPERT::late_fsyn_flow + 0x24c (DB_CSYN)
   0x1429d4: CSYN_SAVE_RESTORE_MGR::get_number_of_snapshots + 0x101c4 (DB_CSYN)
   0x13d54e: CSYN_SAVE_RESTORE_MGR::get_number_of_snapshots + 0xad3e (DB_CSYN)
    0x40f35: CSYN_EXPERT::do_physical_synthesis + 0x5c5 (DB_CSYN)
     0x9702: MEM_SEGMENT_INTERNAL::locked_allocate + 0x62 (ccl_mem)
     0xa268: mem_realloc_wrapper + 0x188 (ccl_mem)
     0x1cac: mem_delete_wrapper + 0x2c (ccl_mem)
    0x101df: DYGR_DIE_INFO_BODY::matches_pin_table_version + 0xcf (DDB_DYGR)
     0xe199: FITAPI_FSYN::do_physical_synthesis + 0x59 (fitter_FITAPI)
End-trace

Altera_Forum · ‎03-08-2010

For anyone running into this, the culprit is enabling "Perform register retiming". If this is turned on along with apparently more than one root LogicLock region the aforementioned error will crash the fitter.

Peter