deps: Drop python 3.8

.github/workflows/examples.yml

@@ -37,9 +37,8 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Setup conda
-      uses: conda-incubator/setup-miniconda@v2
+      uses: conda-incubator/setup-miniconda@v3
       with:
-       python-version: 3.8
        activate-environment: devito
        environment-file: environment-dev.yml
        auto-activate-base: false

.github/workflows/pytest-core-mpi.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ['3.8','3.9']
+        python-version: ['3.9', '3.11']
 
     env:
       DEVITO_LANGUAGE: "openmp"

.github/workflows/pytest-core-nompi.yml

@@ -31,8 +31,8 @@ jobs:
       matrix:
         name: [
            pytest-ubuntu-py311-gcc11-noomp,
-           pytest-ubuntu-py38-gcc12-omp,
-           pytest-ubuntu-py38-gcc7-omp,
+           pytest-ubuntu-py312-gcc12-omp,
+           pytest-ubuntu-py39-gcc7-omp,
            pytest-ubuntu-py310-gcc10-noomp,
            pytest-ubuntu-py312-gcc13-omp,
            pytest-ubuntu-py39-gcc9-omp,
@@ -49,15 +49,15 @@ jobs:
           language: "C"
           sympy: "1.11"
 
-        - name: pytest-ubuntu-py38-gcc12-omp
-          python-version: '3.8'
-          os: ubuntu-22.04
+        - name: pytest-ubuntu-py312-gcc12-omp
+          python-version: '3.12'
+          os: ubuntu-24.04
           arch: "gcc-12"
           language: "openmp"
-          sympy: "1.10"
+          sympy: "1.13"
 
-        - name: pytest-ubuntu-py38-gcc7-omp
-          python-version: '3.8'
+        - name: pytest-ubuntu-py39-gcc7-omp
+          python-version: '3.9'
           os: ubuntu-20.04
           arch: "gcc-7"
           language: "openmp"
@@ -82,14 +82,14 @@ jobs:
           os: ubuntu-20.04
           arch: "custom"
           language: "openmp"
-          sympy: "1.9"
+          sympy: "1.10"
 
         - name: pytest-osx-py312-clang-omp
           python-version: '3.12'
           os: macos-latest
           arch: "clang"
-          language: "C"
-          sympy: "1.9"
+          language: "openmp"
+          sympy: "1.13"
 
         - name: pytest-docker-py39-gcc-omp
           python-version: '3.9'
@@ -124,6 +124,7 @@ jobs:
       uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
+        allow-prereleases: true
 
     - name: Build docker image
       if: contains(matrix.name, 'docker')
@@ -147,9 +148,8 @@ jobs:
     - name: Set tests (reduced number for OSX)
       run : |
           if [ "${{ runner.os }}" == 'macOS' ]; then
-              echo "TESTS=tests/test_operator.py" >> $GITHUB_ENV
-          else
-              echo "TESTS=tests/" >> $GITHUB_ENV
+            brew install llvm libomp
+            echo "/opt/homebrew/bin:/opt/homebrew/opt/llvm/bin" >> $GITHUB_PATH
           fi
       id: set-tests
 
@@ -162,9 +162,9 @@ jobs:
     - name: Install dependencies
       if: "!contains(matrix.name, 'docker')"
       run: |
-        pip install ${{ env.PIPFLAGS }} --upgrade pip
-        pip install ${{ env.PIPFLAGS }} sympy==${{matrix.sympy}}
-        pip install ${{ env.PIPFLAGS }} -e .[tests]
+        python3 -m pip install ${{ env.PIPFLAGS }} --upgrade pip
+        python3 -m pip install ${{ env.PIPFLAGS }} sympy==${{matrix.sympy}}
+        python3 -m pip install ${{ env.PIPFLAGS }} -e .[tests,extras]
 
     - name: Check configuration
       run: |

requirements-optional.txt

@@ -1,5 +1,4 @@
 matplotlib
-pandas
 pyrevolve==2.2.4
 scipy
 distributed

setup.py

@@ -1,7 +1,6 @@
 import versioneer
 
 import os
-import sys
 import pkg_resources
 from setuptools import setup, find_packages
 
@@ -19,10 +18,6 @@ def numpy_compat(required):
     new_reqs = [r for r in required if "numpy" not in r and "sympy" not in r]
     sympy_lb, sympy_ub = min_max(required, "sympy")
     numpy_lb, numpy_ub = min_max(required, "numpy")
-    if sys.version_info < (3, 9):
-        # Numpy 2.0 requires python > 3.8
-        new_reqs.extend([f"sympy>={sympy_lb},<1.12.1", f"numpy>{numpy_lb},<2.0"])
-        return new_reqs
 
     # Due to api changes in numpy 2.0, it requires sympy 1.12.1 at the minimum
     # Check if sympy is installed and enforce numpy version accordingly.
@@ -108,7 +103,7 @@ def numpy_compat(required):
       },
       url='http://www.devitoproject.org',
       platforms=["Linux", "Mac OS-X", "Unix"],
-      python_requires=">=3.8",
+      python_requires=">=3.9",
       classifiers=[
           'Development Status :: 5 - Production/Stable',
           'Intended Audience :: Developers',
@@ -120,7 +115,6 @@ def numpy_compat(required):
           'Operating System :: Unix',
           'Programming Language :: Python',
           'Programming Language :: Python :: 3',
-          'Programming Language :: Python :: 3.8',
           'Programming Language :: Python :: 3.9',
           'Programming Language :: Python :: 3.10',
           'Programming Language :: Python :: 3.11',

tests/test_buffering.py

@@ -3,7 +3,8 @@
 
 from conftest import skipif
 from devito import (Constant, Grid, TimeFunction, Operator, Eq, SubDimension,
-                    SubDomain, ConditionalDimension)
+                    SubDomain, ConditionalDimension, configuration, switchconfig)
+from devito.arch.archinfo import AppleArm
 from devito.ir import FindSymbols, retrieve_iteration_tree
 from devito.exceptions import InvalidOperator
 
@@ -672,6 +673,7 @@ def test_everything():
 
 
 @pytest.mark.parametrize('subdomain', ['domain', 'interior'])
+@switchconfig(safe_math=True, condition=isinstance(configuration['platform'], AppleArm))
 def test_stencil_issue_1915(subdomain):
     nt = 5
     grid = Grid(shape=(6, 6))

tests/test_gradient.py

@@ -14,7 +14,7 @@
 
 class TestGradient:
 
-    @skipif(['chkpnt', 'cpu64-icc'])
+    @skipif(['chkpnt', 'cpu64-icc', 'cpu64-arm'])
     @switchconfig(safe_math=True)
     @pytest.mark.parametrize('dtype', [np.float32, np.float64])
     @pytest.mark.parametrize('opt', [('advanced', {'openmp': True}),
@@ -59,7 +59,7 @@ def test_gradient_checkpointing(self, dtype, opt, space_order, kernel, shape, sp
 
         assert np.allclose(gradient.data, gradient2.data, atol=0, rtol=0)
 
-    @skipif('cpu64-icc')
+    @skipif(['cpu64-icc', 'cpu64-arm'])
     @pytest.mark.parametrize('tn', [750.])
     @pytest.mark.parametrize('spacing', [(10, 10)])
     @pytest.mark.parametrize("dtype, tolerance", [(np.float32, 1e-4),

tests/test_roundoff.py

@@ -1,6 +1,7 @@
 import pytest
 import numpy as np
 
+from conftest import skipif
 from devito import Grid, Constant, TimeFunction, Eq, Operator, switchconfig
 
 
@@ -84,6 +85,7 @@ def test_lm_backward(self, dat, dtype):
     @pytest.mark.parametrize('dat', [0.5, 0.624, 1.0, 1.5, 2.0, 3.0, 3.6767, 4.0])
     @pytest.mark.parametrize('dtype', [np.float32, np.float64])
     @switchconfig(log_level='DEBUG', safe_math=True)
+    @skipif('cpu64-arm')
     def test_lm_fb(self, dat, dtype):
         """
         Test logistic map with forward and backward terms that should cancel.
@@ -123,6 +125,7 @@ def test_lm_fb(self, dat, dtype):
     @pytest.mark.parametrize('dat', [0.5, 0.624, 1.0, 1.5, 2.0, 3.0, 3.6767, 4.0])
     @pytest.mark.parametrize('dtype', [np.float32, np.float64])
     @switchconfig(log_level='DEBUG', safe_math=True)
+    @skipif('cpu64-arm')
     def test_lm_ds(self, dat, dtype):
         """
         Test logistic map with 2nd derivative term that should cancel.