reduce memory consumption

Author: BurkeHulk

.github/workflows/run_chatgpt_examples.yml

@@ -34,6 +34,10 @@ jobs:
           pip install --no-cache-dir -v -e .
 
       - name: Install ChatGPT
+        env:
+          CFLAGS: "-O0"
+          CXXFLAGS: "-O0"
+          MAX_JOBS: 4
         run: |
           cd applications/ColossalChat
           pip install --no-cache-dir -v .