Run Starrc

Safety

• Backup existing SPEF files if present:

  if [ -d "$PROJECT_PATH/starrc/spef" ] && [ "$(ls -A $PROJECT_PATH/starrc/spef 2>/dev/null)" ]; then
      cp -a $PROJECT_PATH/starrc/spef $PROJECT_PATH/starrc/spef_backup_$(date +%Y%m%d_%H%M%S)
  fi
  

• NEVER modify the FC design library.

Execution

StarRC runs 4 sequential extractions. For this design size (~400 nets), each takes seconds. For larger designs, use background execution.

cd $PROJECT_PATH/starrc && mkdir -p spef temp
cd $PROJECT_PATH/starrc/temp && \
    StarXtract -clean ../scripts/extract_cmax_25c.cmd && \
    StarXtract -clean ../scripts/extract_cmax_125c.cmd && \
    StarXtract -clean ../scripts/extract_cmin_25c.cmd && \
    StarXtract -clean ../scripts/extract_cmin_125c.cmd

For larger designs or if timeout is a concern:

cd $PROJECT_PATH/starrc && nohup make run > temp/starrc_run.log 2>&1 &
echo $! > /tmp/.starrc_pid

Then poll for completion.

Completion Verification

1. Check all 4 SPEF files exist and have non-zero size:

   ls -la $PROJECT_PATH/starrc/spef/cmax_25c.spef \
          $PROJECT_PATH/starrc/spef/cmax_125c.spef \
          $PROJECT_PATH/starrc/spef/cmin_25c.spef \
          $PROJECT_PATH/starrc/spef/cmin_125c.spef
   

2. Check for errors in StarRC summary files:

   grep -ri "error" $PROJECT_PATH/starrc/temp/stardir_*/summary/*.sum 2>/dev/null
   

3. Check for success.lock files in each stardir:

   ls $PROJECT_PATH/starrc/temp/stardir_*/success.lock
   

Report Format

=== StarRC Extraction Summary ===

| Corner     | SPEF File      | Size     | Status |
|------------|----------------|----------|--------|
| cmax_25c   | cmax_25c.spef  | XXX KB   | OK     |
| cmax_125c  | cmax_125c.spef | XXX KB   | OK     |
| cmin_25c   | cmin_25c.spef  | XXX KB   | OK     |
| cmin_125c  | cmin_125c.spef | XXX KB   | OK     |

Safety Rules

• NEVER modify the FC design library or any FC output files.
• If extraction fails for one corner, report which corner failed and check the stardir error logs.