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fschloesserKsenia BestuzhevaChristoph Graczykjurgen-lentz
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Scip 8 (#553)
* Getting the update for new cons_nonlinear started * Changed names of most of the consexpr functions, added todos for relevant deletions and open problems in the current implementation. * fixed addQuadCons, _addNonlinearCons, chgLhs, chgRhs, WIP _addGenNonlinearCons, removed isQuadratic(), added a couple of new expr functions from scip8 * A few fixes for the nonlinear interface * change recommended scip version and fix sepa warnings (#540) * added printCons function and added print to test nlrow * Fixing test_nlrow (in progress) * removed getQuadraticTerms for NLRows in SCIP8 * Debugging test_nonlinear * Fixed the rest of test_nonlinear * fixed test_gastrans solution precision * add mac test for pyscipopt install without py.test * SCIP 8.0.0 (#551) * update github actions and pyscipopt version * Update version to 4.0.0 * add bison to macos test * added new requirements for scip8 * move table from install to readme * update setup.py Co-authored-by: Ksenia Bestuzheva <[email protected]> Co-authored-by: Christoph Graczyk <[email protected]> Co-authored-by: Jurgen Lentz <[email protected]>
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‎.github/workflows/integration-test.yml

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name: Integration test
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env:
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version: 7.0.3
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version: 8.0.0
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# runs on branches and pull requests; doesn't run on tags.
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on:
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jobs:
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Integration-test:
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runs-on: ubuntu-18.04
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runs-on: ubuntu-20.04
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strategy:
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fail-fast: true
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matrix:
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run: |
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py.test
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# MacOS-test:
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# runs-on: macos-latest
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# strategy:
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# matrix:
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# python-version: [3.8, 3.9]
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# steps:
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# - uses: actions/checkout@v2
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#
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# - name: Cache dependencies (SCIPOptSuite)
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# id: cache-scip
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# uses: actions/cache@v2
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# with:
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# path: |
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# ${{ runner.workspace }}/scipoptsuite
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# ~/Library/Caches/Homebrew/tbb@2020--*
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# /usr/local/opt/tbb@2020*
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# ~/Library/Caches/Homebrew/downloads/*--tbb@2020-*
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# ~/Library/Caches/Homebrew/boost--*
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# /usr/local/opt/boost*
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# ~/Library/Caches/Homebrew/downloads/*--boost-*
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# key: ${{ runner.os }}-scipopt-${{ env.version }}-${{ hashFiles('**/lockfiles') }}
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# restore-keys: |
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# ${{ runner.os }}-scipopt-${{ env.version }}-
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#
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# - name: Install dependencies (SCIPOptSuite)
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# if: steps.cache-scip.outputs.cache-hit != 'true'
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# run: |
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# brew install tbb@2020 boost
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# wget --quiet --no-check-certificate https://scipopt.org/download/release/scipoptsuite-${{ env.version }}.tgz
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# tar xfz scipoptsuite-${{ env.version }}.tgz
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# cd scipoptsuite-${{ env.version }}
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# mkdir build
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# cd build
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# cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=${{ runner.workspace }}/scipoptsuite -DIPOPT=off -DSYM=none -DTPI=tny -DREADLINE=off -DTBB_LIBRARY_DIR=/usr/local/opt/tbb@2020/lib
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# make install -j
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#
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# - name: Setup python ${{ matrix.python-version }}
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# uses: actions/setup-python@v2
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# with:
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# python-version: ${{ matrix.python-version }}
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#
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# - name: Prepare python environment
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# run: |
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# python -m pip install --upgrade pip
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# python -m pip install wheel cython networkx pytest-cov pytest
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#
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# - name: Install PySCIPOpt
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# run: |
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# export SCIPOPTDIR=${{ runner.workspace }}/scipoptsuite/
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# export DYLD_LIBRARY_PATH=${DYLD_LIBRARY_PATH}:${{ runner.workspace }}/scipoptsuite/lib
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# python -m pip install .
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#
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MacOS-test:
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runs-on: macos-latest
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strategy:
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matrix:
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python-version: [3.8, 3.9]
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steps:
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- uses: actions/checkout@v2
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- name: Cache dependencies (SCIPOptSuite)
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id: cache-scip
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uses: actions/cache@v2
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with:
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path: |
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${{ runner.workspace }}/scipoptsuite
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~/Library/Caches/Homebrew/tbb@2020--*
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/usr/local/opt/tbb@2020*
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~/Library/Caches/Homebrew/downloads/*--tbb@2020-*
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~/Library/Caches/Homebrew/boost--*
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/usr/local/opt/boost*
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~/Library/Caches/Homebrew/downloads/*--boost-*
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key: ${{ runner.os }}-scipopt-${{ env.version }}-${{ hashFiles('**/lockfiles') }}
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restore-keys: |
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${{ runner.os }}-scipopt-${{ env.version }}-
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- name: Install dependencies (SCIPOptSuite)
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if: steps.cache-scip.outputs.cache-hit != 'true'
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run: |
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brew install tbb@2020 boost bison
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wget --quiet --no-check-certificate https://scipopt.org/download/release/scipoptsuite-${{ env.version }}.tgz
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tar xfz scipoptsuite-${{ env.version }}.tgz
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cd scipoptsuite-${{ env.version }}
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mkdir build
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cd build
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cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=${{ runner.workspace }}/scipoptsuite -DIPOPT=off -DSYM=none -DTPI=tny -DREADLINE=off -DTBB_LIBRARY_DIR=/usr/local/opt/tbb@2020/lib
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make install -j
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- name: Setup python ${{ matrix.python-version }}
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uses: actions/setup-python@v2
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with:
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python-version: ${{ matrix.python-version }}
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- name: Prepare python environment
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run: |
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python -m pip install --upgrade pip
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python -m pip install wheel cython networkx pytest-cov pytest
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- name: Install PySCIPOpt
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run: |
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export SCIPOPTDIR=${{ runner.workspace }}/scipoptsuite/
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export DYLD_LIBRARY_PATH=${DYLD_LIBRARY_PATH}:${{ runner.workspace }}/scipoptsuite/lib
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python -m pip install .
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# - name: Run pyscipopt tests
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# run: |
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# export SCIPOPTDIR=${{ runner.workspace }}/scipoptsuite/

‎.github/workflows/test-release.yml

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name: TestPyPI release
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env:
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version: 7.0.3
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version: 8.0.0
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# runs only when a release is published, not on drafts
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jobs:
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deploy-packges-and-generate-documentation:
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runs-on: ubuntu-18.04
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runs-on: ubuntu-20.04
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‎.github/workflows/update-packages-and-documentation.yml

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name: Test and Release PyPI Package
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env:
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version: 7.0.3
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version: 8.0.0
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release-integration-test:
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needs: check-tag
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runs-on: ubuntu-20.04
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deploy-packages-and-generate-documentation:
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needs: Windows-test
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‎INSTALL.md

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PySCIPOpt requires a working installation of the [SCIP Optimization
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Suite](https://www.scipopt.org/). Please, make sure that your SCIP installation works!
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Note that the latest PySCIPOpt version is usually only compatible with the latest major release of the SCIP Optimization Suite.
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The following table summarizes which version of PySCIPOpt is required for a given SCIP version:
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|SCIP| PySCIPOpt |
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|----|----|
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7.0 | 3.x
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6.0 | 2.x
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5.0 | 1.4, 1.3
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4.0 | 1.2, 1.1
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3.2 | 1.0
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**Note that the latest PySCIPOpt version is usually only compatible with the latest major release of the SCIP Optimization Suite. See the table on the README.md page for details.**
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If SCIP is not installed in the global path
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you need to specify the install location using the environment variable

‎README.md

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See [INSTALL.md](INSTALL.md) for instructions.
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Please note that the latest PySCIPOpt version is usually only compatible with the latest major release of the SCIP Optimization Suite.
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The following table summarizes which version of PySCIPOpt is required for a given SCIP version:
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|SCIP| PySCIPOpt |
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|----|----|
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8.0 | 4.x
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7.0 | 3.x
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6.0 | 2.x
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5.0 | 1.4, 1.3
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4.0 | 1.2, 1.1
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3.2 | 1.0
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Information which version of PySCIPOpt is required for a given SCIP version can also be found in [INSTALL.md](INSTALL.md).
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Building and solving a model

‎setup.py

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print('Using include path <%s>.' % includedir)
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if os.path.exists(os.path.join(scipoptdir, 'lib/shared/libscipsolver.so')):
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if os.path.exists(os.path.join(scipoptdir, 'lib/shared/libscip.so')):
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# SCIP seems to be created with make
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libdir = os.path.abspath(os.path.join(scipoptdir, 'lib/shared'))
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libname = 'scipsolver'
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libname = 'scip'
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extra_compile_args.append('-DNO_CONFIG_HEADER')
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else:
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# assume that SCIP is installed on the system

‎src/pyscipopt/__init__.py

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__version__ = '3.5.0'
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__version__ = '4.0.0'
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# required for Python 3.8 on Windows
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import os

‎src/pyscipopt/expr.pxi

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add = 'sum'
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fabs = 'abs'
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operatorIndexDic={
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varidx:SCIP_EXPR_VARIDX,
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const:SCIP_EXPR_CONST,
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plus:SCIP_EXPR_PLUS,
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minus:SCIP_EXPR_MINUS,
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mul:SCIP_EXPR_MUL,
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div:SCIP_EXPR_DIV,
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sqrt:SCIP_EXPR_SQRT,
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power:SCIP_EXPR_REALPOWER,
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exp:SCIP_EXPR_EXP,
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log:SCIP_EXPR_LOG,
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fabs:SCIP_EXPR_ABS,
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add:SCIP_EXPR_SUM,
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prod:SCIP_EXPR_PRODUCT
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}
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def getOpIndex(self, op):
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return Op.operatorIndexDic[op];
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Operator = Op()
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#
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#See also the @ref ExprDetails "description" in the expr.pxi.
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cdef class GenExpr:
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cdef public operatorIndex
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cdef public _op
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cdef public children
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self.coefs = []
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self.children = []
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self._op = Operator.add
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self.operatorIndex = Operator.operatorIndexDic[self._op]
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def __repr__(self):
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self._op = Operator.prod
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self.operatorIndex = Operator.operatorIndexDic[self._op]
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def __repr__(self):
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def __init__(self, var):
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self._op = Operator.varidx
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self.operatorIndex = Operator.operatorIndexDic[self._op]
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def __repr__(self):
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self.expo = 1.0
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self._op = Operator.power
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self.operatorIndex = Operator.operatorIndexDic[self._op]
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def __repr__(self):
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return self._op + "(" + self.children[0].__repr__() + "," + str(self.expo) + ")"
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self.children = []
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self._op = op
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def __repr__(self):
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return self._op + "(" + self.children[0].__repr__() + ")"
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def __init__(self,number):
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self.number = number
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self.operatorIndex = Operator.operatorIndexDic[self._op]
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def __repr__(self):
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return str(self.number)

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