Cleanup options for front-end. Improve info output.

LICENSE

@@ -1,6 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2019 Regents of the University of California and The Board
+Copyright (c) 2018-2019 Regents of the University of California and The Board
 of Regents for the Oklahoma Agricultural and Mechanical College
 (acting for and on behalf of Oklahoma State University)
 All rights reserved.

compiler/base/hierarchy_design.py

@@ -37,12 +37,17 @@ class hierarchy_design(hierarchy_spice.spice, hierarchy_layout.layout):
         return inst_map
         
 
-    def DRC_LVS(self, final_verification=False):
+    def DRC_LVS(self, final_verification=False, top_level=False):
         """Checks both DRC and LVS for a module"""
+        
+        # Final verification option does not allow nets to be connected by label.
         # Unit tests will check themselves.
+        if OPTS.is_unit_test:
+            return
+        if not OPTS.check_lvsdrc:
+            return
         # Do not run if disabled in options.
-
+        if (OPTS.inline_lvsdrc or top_level):
-        if (not OPTS.is_unit_test and OPTS.check_lvsdrc and (OPTS.inline_lvsdrc or final_verification)):
 
             global total_drc_errors
             global total_lvs_errors

compiler/example_configs/big_config_scn4m_subm.py

@@ -6,8 +6,6 @@ process_corners = ["TT"]
 supply_voltages = [ 5.0 ]
 temperatures = [ 25 ]
 
-route_supplies = False
-
 output_path = "temp"
 output_name = "sram_{0}_{1}_{2}".format(word_size,num_words,tech_name)
 

compiler/example_configs/example_config_1rw_1r_scn4m_subm.py

@@ -11,6 +11,7 @@ supply_voltages = [5.0]
 temperatures = [25]
 
 route_supplies = True
+check_lvsdrc = True
 
 output_path = "temp"
 output_name = "sram_1rw_1r_{0}_{1}_{2}".format(word_size,num_words,tech_name)

compiler/example_configs/example_config_1w_1r_scn4m_subm.py

@@ -10,6 +10,9 @@ process_corners = ["TT"]
 supply_voltages = [5.0]
 temperatures = [25]
 
+route_supplies = True
+check_lvsdrc = True
+
 output_path = "temp"
 output_name = "sram_1w_1r_{0}_{1}_{2}".format(word_size,num_words,tech_name)
 

compiler/example_configs/example_config_freepdk45.py

@@ -6,6 +6,9 @@ process_corners = ["TT"]
 supply_voltages = [1.0]
 temperatures = [25]
 
+route_supplies = True
+check_lvsdrc = True
+
 output_path = "temp"
 output_name = "sram_{0}_{1}_{2}".format(word_size,num_words,tech_name)
 

compiler/example_configs/example_config_scn4m_subm.py

@@ -6,6 +6,9 @@ process_corners = ["TT"]
 supply_voltages = [5.0]
 temperatures = [25]
 
+route_supplies = True
+check_lvsdrc = True
+
 output_path = "temp"
 output_name = "sram_{0}_{1}_{2}".format(word_size,num_words,tech_name)
 

compiler/example_configs/medium_config_scn4m_subm.py

@@ -6,8 +6,6 @@ process_corners = ["TT"]
 supply_voltages = [ 3.3 ]
 temperatures = [ 25 ]
 
-route_supplies = False
-
 output_path = "temp"
 output_name = "sram_{0}_{1}_{2}".format(word_size,num_words,tech_name)
 

compiler/globals.py

@@ -79,10 +79,6 @@ def print_banner():
     debug.print_raw("|=========" + "Computer Science and Engineering Department".center(60) + "=========|")
     debug.print_raw("|=========" + "University of California Santa Cruz".center(60) + "=========|")
     debug.print_raw("|=========" + " ".center(60) + "=========|")
-    debug.print_raw("|=========" + "VLSI Computer Architecture Research Group".center(60) + "=========|")
-    debug.print_raw("|=========" + "Electrical and Computer Engineering Department".center(60) + "=========|")
-    debug.print_raw("|=========" + "Oklahoma State University".center(60) + "=========|")
-    debug.print_raw("|=========" + " ".center(60) + "=========|")
     user_info = "Usage help: openram-user-group@ucsc.edu"
     debug.print_raw("|=========" + user_info.center(60) + "=========|")
     dev_info = "Development help: openram-dev-group@ucsc.edu"
@@ -478,11 +474,14 @@ def report_status():
                                                                        OPTS.num_r_ports,
                                                                        OPTS.num_w_ports))
     if OPTS.netlist_only:
-        debug.print_raw("Netlist only mode (no physical design is being done).")
+        debug.print_raw("Netlist only mode (no physical design is being done, netlist_only=False to disable).")
     
+    if not OPTS.route_supplies:
+        debug.print_raw("Design supply routing skipped for run-time (incomplete GDS will not be saved, route_supplies=True to enable).")
+        
     if not OPTS.inline_lvsdrc:
-        debug.print_raw("DRC/LVS/PEX is only run on the top-level design.")
+        debug.print_raw("DRC/LVS/PEX is only run on the top-level design to save run-time (inline_lvsdrc=True to enable).")
 
     if not OPTS.check_lvsdrc:
-        debug.print_raw("DRC/LVS/PEX is completely disabled.")
+        debug.print_raw("DRC/LVS/PEX is disabled (check_lvsdrc=True to enable).")
         

compiler/options.py

@@ -56,13 +56,15 @@ class options(optparse.Values):
 
     ###################
     # Run-time vs accuracy options.
+    # Default, sacrifice accuracy/completeness for speed.
+    # Must turn on options for verification, final routing, etc.
     ###################
     # When enabled, layout is not generated (and no DRC or LVS are performed)
     netlist_only = False
     # Whether we should do the final power routing
     route_supplies = False
     # This determines whether LVS and DRC is checked at all.
-    check_lvsdrc = True
+    check_lvsdrc = False
     # This determines whether LVS and DRC is checked for every submodule.
     inline_lvsdrc = False
     # Remove noncritical memory cells for characterization speed-up

compiler/sram_base.py

@@ -111,7 +111,7 @@ class sram_base(design, verilog, lef):
 
         start_time = datetime.now()
         # We only enable final verification if we have routed the design
-        self.DRC_LVS(final_verification=OPTS.route_supplies)
+        self.DRC_LVS(final_verification=OPTS.route_supplies, top_level=True)
         if not OPTS.is_unit_test:
             print_time("Verification",datetime.now(), start_time)
 

compiler/tests/27_worst_case_delay_test.py

@@ -22,7 +22,6 @@ class worst_case_timing_sram_test(openram_test):
         OPTS.analytical_delay = False
         OPTS.netlist_only = True
         OPTS.trim_netlist = False
-        OPTS.check_lvsdrc = True
         
 
         # This is a hack to reload the characterizer __init__ with the spice version

compiler/tests/config_freepdk45.py

@@ -5,6 +5,7 @@ tech_name = "freepdk45"
 process_corners = ["TT"]
 supply_voltages = [1.0]
 temperatures = [25]
+
 route_supplies = True
-
+check_lvsdrc = True
 

compiler/tests/config_freepdk45_front_end.py

@@ -8,3 +8,4 @@ temperatures = [25]
 
 
 
+

compiler/tests/config_scn4m_subm.py

@@ -5,7 +5,9 @@ tech_name = "scn4m_subm"
 process_corners = ["TT"]
 supply_voltages = [5.0]
 temperatures = [25]
+
 route_supplies = True
+check_lvsdrc = True
 
 drc_name = "magic"
 lvs_name = "netgen"

compiler/verify/magic.py

@@ -347,8 +347,7 @@ def run_pex(name, gds_name, sp_name, output=None, final_verification=False):
 
     out_errors = len(stdouterrors)
 
-    assert(os.path.isfile(output))
+    debug.check(os.path.isfile(output),"Couldn't find PEX extracted output.")
-    #correct_port(name, output, sp_name)
 
     return out_errors