Remove benchmark scripts (moved to QuantEcon/benchmarks)

- Remove profile_lax_scan.py, benchmark-hardware.py, benchmark-jupyter.ipynb, benchmark-jupyterbook.md
- Remove profiling/benchmarking steps from ci.yml
- Keep test-jax-install.py for JAX installation verification

Benchmark scripts are now maintained in: https://github.com/QuantEcon/benchmarks

Author: mmcky

.github/workflows/ci.yml

@@ -25,98 +25,6 @@ jobs:
           pip install -U "jax[cuda13]"
           pip install numpyro
           python scripts/test-jax-install.py
-      # === lax.scan GPU Performance Profiling ===
-      - name: Profile lax.scan (GPU vs CPU)
-        shell: bash -l {0}
-        run: |
-          echo "=== lax.scan Performance Profiling ==="
-          echo "This profiles the known issue with lax.scan on GPU (JAX Issue #2491)"
-          echo ""
-          python scripts/profile_lax_scan.py --iterations 100000 --diagnose
-          echo ""
-          echo "The diagnostic shows if time scales linearly with iterations,"
-          echo "which indicates constant per-iteration CPU-GPU sync overhead."
-      - name: Nsight Systems Profile (if available)
-        shell: bash -l {0}
-        continue-on-error: true
-        run: |
-          echo "=== NVIDIA Nsight Systems Profiling ==="
-          if command -v nsys &> /dev/null; then
-            echo "nsys found, running profile with 1000 iterations..."
-            mkdir -p nsight_profiles
-            nsys profile -o nsight_profiles/lax_scan_trace \
-              --trace=cuda,nvtx,osrt \
-              --cuda-memory-usage=true \
-              --stats=true \
-              python scripts/profile_lax_scan.py --nsys -n 1000
-            echo ""
-            echo "Profile saved to nsight_profiles/lax_scan_trace.nsys-rep"
-            echo "Download artifact and open in Nsight Systems UI to see CPU-GPU sync pattern"
-          else
-            echo "nsys not found, skipping Nsight profiling"
-            echo "Install NVIDIA Nsight Systems to enable this profiling"
-          fi
-      - name: Upload Nsight Profile
-        uses: actions/upload-artifact@v5
-        if: success() || failure()
-        continue-on-error: true
-        with:
-          name: nsight-profile
-          path: nsight_profiles/
-          if-no-files-found: ignore
-      # === Benchmark Tests (Bare Metal, Jupyter, Jupyter-Book) ===
-      - name: Run Hardware Benchmarks (Bare Metal)
-        shell: bash -l {0}
-        run: |
-          echo "=== Bare Metal Python Script Execution ==="
-          python scripts/benchmark-hardware.py
-          mkdir -p benchmark_results
-          mv benchmark_results_bare_metal.json benchmark_results/
-      - name: Run Jupyter Notebook Benchmark (via nbconvert)
-        shell: bash -l {0}
-        run: |
-          echo "=== Jupyter Kernel Execution ==="
-          cd scripts
-          jupyter nbconvert --to notebook --execute benchmark-jupyter.ipynb --output benchmark-jupyter-executed.ipynb
-          echo "Notebook executed successfully"
-          cd ..
-          mv scripts/benchmark_results_jupyter.json benchmark_results/
-      - name: Run Jupyter-Book Benchmark
-        shell: bash -l {0}
-        run: |
-          echo "=== Jupyter-Book Execution ==="
-          # Build just the benchmark file using jupyter-book
-          mkdir -p benchmark_test
-          cp scripts/benchmark-jupyterbook.md benchmark_test/
-          # Create minimal _config.yml
-          echo "title: Benchmark Test" > benchmark_test/_config.yml
-          echo "execute:" >> benchmark_test/_config.yml
-          echo "  execute_notebooks: force" >> benchmark_test/_config.yml
-          # Create minimal _toc.yml
-          echo "format: jb-book" > benchmark_test/_toc.yml
-          echo "root: benchmark-jupyterbook" >> benchmark_test/_toc.yml
-          # Build (run from benchmark_test so JSON is written there)
-          cd benchmark_test
-          jb build . --path-output ../benchmark_build/
-          cd ..
-          echo "Jupyter-Book build completed successfully"
-          # Move JSON results if generated
-          cp benchmark_test/benchmark_results_jupyterbook.json benchmark_results/ 2>/dev/null || echo "No jupyterbook results"
-      - name: Collect and Display Benchmark Results
-        shell: bash -l {0}
-        run: |
-          echo "=== Benchmark Results Summary ==="
-          for f in benchmark_results/*.json; do
-            echo "--- $f ---"
-            cat "$f"
-            echo ""
-          done
-      - name: Upload Benchmark Results
-        uses: actions/upload-artifact@v5
-        with:
-          name: benchmark-results
-          path: benchmark_results/
-          if-no-files-found: warn
       - name: Install latex dependencies
         run: |
           sudo apt-get -qq update