Example of loose use of ampl

.github/workflows/test_pr_and_main.yml

@@ -13,8 +13,8 @@ concurrency:
   cancel-in-progress: true
 
 defaults:
-    run:
-        shell: bash -l {0}
+  run:
+    shell: bash -l {0}
 
 jobs:
   ruff:
@@ -33,7 +33,7 @@ jobs:
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test_env
-          python-version: 3.9
+          python-version: 3.11
           auto-activate-base: false
       - name: Install dependencies
         run: |
@@ -49,12 +49,10 @@ jobs:
           cd mpisppy/tests
           python test_ef_ph.py
 
-
   regression:
     name: Basic regression tests
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
@@ -98,11 +96,8 @@ jobs:
   runall_persistent:
     name: run_all.py persistent solver
     runs-on: ubuntu-latest
+    needs: [ruff]
     timeout-minutes: 15
-    # this takes the most time, so we'll start it
-    # without waiting on the linting and other checks
-    # needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
@@ -134,10 +129,6 @@ jobs:
     name: run_all.py direct solver
     runs-on: ubuntu-latest
     timeout-minutes: 15
-    # this takes the most time, so we'll start it
-    # without waiting on the linting and other checks
-    # needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
@@ -168,51 +159,63 @@ jobs:
   schur-complement:
     name: schur-complement
     runs-on: ubuntu-latest
-    needs: [ruff]
     strategy:
       matrix:
-        python-version: [3.9]
+        python-version: [3.11]
     steps:
-    - uses: actions/checkout@v3
-    - name: setup conda
-      uses: conda-incubator/setup-miniconda@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-        channels: anaconda, conda-forge
-        activate-environment: test_env
-        auto-activate-base: false
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install nose pybind11
-        conda install conda-forge::libstdcxx-ng
-        conda install openmpi pymumps --no-update-deps
-        pip install mpi4py pandas
-        pip install git+https://github.com/pyutilib/pyutilib.git
-        git clone https://github.com/pyomo/pyomo.git
-        cd pyomo/
-        pip install -e .
-        pyomo download-extensions
-        pyomo build-extensions
-        cd ../
-        pip install git+https://github.com/parapint/parapint.git
-        pip install -e .
-    - name: Test with nose
-      run: |
-        nosetests -v mpisppy/tests/test_sc.py
-        mpirun -np 3 -oversubscribe nosetests mpisppy/tests/test_sc.py
+      - uses: actions/checkout@v3
+
+      - name: setup conda
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          channels: anaconda, conda-forge
+          activate-environment: test_env
+          auto-activate-base: false
+
+      - name: Install dependencies
+        shell: bash -l {0}
+        run: |
+          python -m pip install --upgrade pip
+          # Test tooling
+          pip install pytest pytest-cov
+          # Core build/test deps
+          pip install pybind11
+          conda install -y conda-forge::libstdcxx-ng
+          conda install -y openmpi pymumps --no-update-deps
+          pip install mpi4py pandas
+          # pyutilib / pyomo / parapint
+          pip install git+https://github.com/pyutilib/pyutilib.git
+          git clone https://github.com/pyomo/pyomo.git
+          cd pyomo/
+          pip install -e .
+          pyomo download-extensions
+          pyomo build-extensions
+          cd ../
+          pip install git+https://github.com/parapint/parapint.git
+          # Install this repo (editable)
+          pip install -e .
+
+      - name: Test with pytest (serial)
+        shell: bash -l {0}
+        run: |
+          pytest -q -vv mpisppy/tests/test_sc.py
+
+      - name: Test with pytest under MPI
+        shell: bash -l {0}
+        run: |
+          mpirun -np 3 -oversubscribe python -m pytest -q -vv mpisppy/tests/test_sc.py
 
   straight-tests:
     name: straight_tests.py
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test_env
-          python-version: 3.9
+          python-version: 3.11
           auto-activate-base: false
       - name: Install dependencies
         run: |
@@ -232,13 +235,12 @@ jobs:
     name: admm wrapper tests
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test_env
-          python-version: 3.9
+          python-version: 3.11
           auto-activate-base: false
       - name: Install dependencies
         run: |
@@ -262,13 +264,12 @@ jobs:
     name: aph tests
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test_env
-          python-version: 3.9
+          python-version: 3.11
           auto-activate-base: false
       - name: Install dependencies
         run: |
@@ -290,13 +291,12 @@ jobs:
     name: pickled bundles tests
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test_env
-          python-version: 3.9
+          python-version: 3.11
           auto-activate-base: false
       - name: Install dependencies
         run: |
@@ -313,12 +313,10 @@ jobs:
           cd mpisppy/tests
           python test_pickle_bundle.py
 
-
   mps:
     name: MPS tests
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
@@ -341,18 +339,16 @@ jobs:
           cd mpisppy/tests
           python test_mps.py
 
-
   confidence-intervals:
     name: confidence intervals tests
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test_env
-          python-version: 3.9
+          python-version: 3.11
           auto-activate-base: false
       - name: Install dependencies
         run: |
@@ -380,7 +376,6 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ruff]
     timeout-minutes: 15
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
@@ -411,7 +406,6 @@ jobs:
     name: gradient and rho tests
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v3
@@ -439,13 +433,13 @@ jobs:
   test-headers:
     name: header test
     runs-on: ubuntu-latest
-
+    needs: [ruff]
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test_env
-          python-version: 3.9
+          python-version: 3.11
           auto-activate-base: false
       - name: Install dependencies
         run: |
@@ -466,13 +460,12 @@ jobs:
     name: pysp tests
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test_env
-          python-version: 3.9
+          python-version: 3.11
           auto-activate-base: false
       - name: Install dependencies
         run: |
@@ -500,13 +493,12 @@ jobs:
     name: tests on some cylinders
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: test_env
-          python-version: 3.9
+          python-version: 3.11
           auto-activate-base: false
       - name: Install dependencies
         run: |
@@ -527,7 +519,6 @@ jobs:
     name: tests on agnostic
     runs-on: ubuntu-latest
     needs: [ruff]
-
     steps:
       - uses: actions/checkout@v3
       - uses: conda-incubator/setup-miniconda@v2
@@ -543,6 +534,7 @@ jobs:
           python -m pip install amplpy --upgrade
           python -m amplpy.modules install highs cbc gurobi
           python -m pip install gamspy
+          python -m pip install mip
           # license?
 
       - name: setup the program
@@ -560,3 +552,11 @@ jobs:
         run: |
           cd mpisppy/agnostic/examples
           python afew_agnostic.py
+
+      - name: run loose AMPL
+        timeout-minutes: 10
+        run: |
+          cd examples/loose_agnostic/AMPL
+          bash farmer_example.bash
+          cd ../GAMS
+	  bash farmer_example.bash

doc/src/agnostic.rst

@@ -16,18 +16,36 @@ Code for creating a
 Pyomo model from an mps file is in ``mpisppy.utils.mps_reader.py``,
 but you can also just use ``generic_cylinders.py`` and give
 it the module ``mpisppy.utils.mps_module`` (you will need to specify
-that path to this module) and the ``--mps-files-directory``
+the path to this module) and the ``--mps-files-directory``
 option.  Note
 that at the time of this writing, the number of scenarios is obtained
 by counting the mps files in the directory given.
 
-The file ``examples.sizes.mps_demo.bash`` has two commands. The second illustrates
-how to instruction ``MPI-SPPY`` to read mps/json file pairs for each scenario from a
-directory. The first command illustrates how to use ``MPI-SPPY`` to write
-them in the first place (but if ``MPI-SPPY`` can get your scenarios, there
-is probably no reason to write them and then read them again!). This
-functionality is intended to be used by users of other AMLs or other
-scenario-based stochastic programming applications.
+The file ``examples.loose_agnostic.AMPL.farmer_example.bash`` has three
+commands.  The second illustrates how to instruct ``MPI-SPPY`` to read
+mps/json file pairs for each scenario from a directory. The first runs
+an `AMPLpy` program that creates the scenario files.  This program is
+in ``examples.loose_agnostic.AMPL.farmer_writer.py`` and, apart from
+the `scenario_creator` function, is pretty general for two-stage
+problems.  You be able to copy the program and
+write a `scenario_creator` function for your two-stage problem.
+The third command runs a script that illustrates how to map column
+names created by the MPS writer back to AMPL variable names.
+
+The file ``examples.loose_agnostic.GAMS.farmer_example.bash`` has three
+commands that mimic the commands for AMPL.
+
+A somewhat strange example is in the file
+``examples.sizes.mps_demo.bash`` has two commands. The second
+illustrates how to instruct ``MPI-SPPY`` to read mps/json file pairs
+for each scenario from a directory. The first command illustrates how
+to use ``MPI-SPPY`` to write them in the first place (but if
+``MPI-SPPY`` can get your scenarios, there is probably no reason to
+write them and then read them again!). This functionality is intended
+to be used by users of other AMLs or other scenario-based stochastic
+programming applications.
+
+There is low-level support for `.lp` files instead of `.mps` files.
 
 JSON file format
 ----------------