Merge pull request cupy#7405 from kmaehashi/drop-py37

Drop support for Python 3.7, NumPy 1.20, and SciPy 1.6

.github/workflows/backport.yml

@@ -27,7 +27,7 @@ jobs:
     - name: setup python
       uses: actions/setup-python@v2
       with:
-        python-version: '3.7'
+        python-version: '3.10'
 
     - name: setup backport
       run: |

.pfnci/config.pbtxt

@@ -615,7 +615,7 @@ configs {
       include_dot_git: true
     }
     environment_variables { key: "GPU" value: "2" }
-    command: ".pfnci\\windows\\run.bat 10.2 3.7 test"
+    command: ".pfnci\\windows\\run.bat 10.2 3.8 test"
   }
 }
 
@@ -678,7 +678,7 @@ configs {
       include_dot_git: true
     }
     environment_variables { key: "GPU" value: "2" }
-    command: ".pfnci\\windows\\run.bat 11.2 3.7 test"
+    command: ".pfnci\\windows\\run.bat 11.2 3.8 test"
   }
 }
 

.pfnci/coverage.rst

@@ -1811,15 +1811,8 @@ CuPy CI Test Coverage
      - ✅
    * - python
      - 3.7
-     - 7
-     - ✅
-     - ✅
-     - 
+     - 🚨
      - 
-     - ✅
-     - ✅
-     - ✅
-     - ✅
      - 
      - 
      - 
@@ -1834,7 +1827,6 @@ CuPy CI Test Coverage
      - 
      - 
      - 
-     - ✅
      - 
      - 
      - 
@@ -1843,9 +1835,6 @@ CuPy CI Test Coverage
      - 
      - 
      - 
-   * - 
-     - 3.8
-     - 3
      - 
      - 
      - 
@@ -1854,10 +1843,20 @@ CuPy CI Test Coverage
      - 
      - 
      - 
+   * - 
+     - 3.8
+     - 10
      - ✅
      - ✅
      - 
      - 
+     - ✅
+     - ✅
+     - ✅
+     - ✅
+     - ✅
+     - ✅
+     - 
      - 
      - 
      - 
@@ -1869,6 +1868,7 @@ CuPy CI Test Coverage
      - 
      - 
      - 
+     - ✅
      - 
      - 
      - 

.pfnci/linux/tests/cuda102.Dockerfile

@@ -27,8 +27,8 @@ ENV PATH "/usr/lib/ccache:${PATH}"
 RUN git clone https://github.com/pyenv/pyenv.git /opt/pyenv
 ENV PYENV_ROOT "/opt/pyenv"
 ENV PATH "${PYENV_ROOT}/shims:${PYENV_ROOT}/bin:${PATH}"
-RUN pyenv install 3.7.11 && \
-    pyenv global 3.7.11 && \
+RUN pyenv install 3.8.11 && \
+    pyenv global 3.8.11 && \
     pip install -U setuptools pip
 
 RUN pip install -U 'numpy==1.20.*' 'scipy==1.6.*' 'optuna==3.*' 'cython==0.29.*'

.pfnci/linux/tests/cuda102.multi.Dockerfile

@@ -27,8 +27,8 @@ ENV PATH "/usr/lib/ccache:${PATH}"
 RUN git clone https://github.com/pyenv/pyenv.git /opt/pyenv
 ENV PYENV_ROOT "/opt/pyenv"
 ENV PATH "${PYENV_ROOT}/shims:${PYENV_ROOT}/bin:${PATH}"
-RUN pyenv install 3.7.11 && \
-    pyenv global 3.7.11 && \
+RUN pyenv install 3.8.11 && \
+    pyenv global 3.8.11 && \
     pip install -U setuptools pip
 
 RUN pip install -U 'numpy==1.20.*' 'scipy==1.6.*' 'optuna==3.*' 'mpi4py==3.*' 'cython==0.29.*'

.pfnci/linux/tests/cuda111.Dockerfile

@@ -23,8 +23,8 @@ RUN /update-alternatives-cutensor.sh
 RUN git clone https://github.com/pyenv/pyenv.git /opt/pyenv
 ENV PYENV_ROOT "/opt/pyenv"
 ENV PATH "${PYENV_ROOT}/shims:${PYENV_ROOT}/bin:${PATH}"
-RUN pyenv install 3.7.11 && \
-    pyenv global 3.7.11 && \
+RUN pyenv install 3.8.11 && \
+    pyenv global 3.8.11 && \
     pip install -U setuptools pip
 
 RUN pip install -U 'numpy==1.20.*' 'cython==0.29.*'

.pfnci/linux/tests/cuda111.multi.Dockerfile

@@ -23,8 +23,8 @@ RUN /update-alternatives-cutensor.sh
 RUN git clone https://github.com/pyenv/pyenv.git /opt/pyenv
 ENV PYENV_ROOT "/opt/pyenv"
 ENV PATH "${PYENV_ROOT}/shims:${PYENV_ROOT}/bin:${PATH}"
-RUN pyenv install 3.7.11 && \
-    pyenv global 3.7.11 && \
+RUN pyenv install 3.8.11 && \
+    pyenv global 3.8.11 && \
     pip install -U setuptools pip
 
 RUN pip install -U 'numpy==1.20.*' 'cython==0.29.*'

.pfnci/linux/tests/cuda112.Dockerfile

@@ -23,8 +23,8 @@ RUN /update-alternatives-cutensor.sh
 RUN git clone https://github.com/pyenv/pyenv.git /opt/pyenv
 ENV PYENV_ROOT "/opt/pyenv"
 ENV PATH "${PYENV_ROOT}/shims:${PYENV_ROOT}/bin:${PATH}"
-RUN pyenv install 3.7.11 && \
-    pyenv global 3.7.11 && \
+RUN pyenv install 3.8.11 && \
+    pyenv global 3.8.11 && \
     pip install -U setuptools pip
 
 RUN pip install -U 'numpy==1.21.*' 'scipy==1.7.*' 'optuna==3.*' 'cython==0.29.*'

.pfnci/linux/tests/cuda112.multi.Dockerfile

@@ -23,8 +23,8 @@ RUN /update-alternatives-cutensor.sh
 RUN git clone https://github.com/pyenv/pyenv.git /opt/pyenv
 ENV PYENV_ROOT "/opt/pyenv"
 ENV PATH "${PYENV_ROOT}/shims:${PYENV_ROOT}/bin:${PATH}"
-RUN pyenv install 3.7.11 && \
-    pyenv global 3.7.11 && \
+RUN pyenv install 3.8.11 && \
+    pyenv global 3.8.11 && \
     pip install -U setuptools pip
 
 RUN pip install -U 'numpy==1.21.*' 'scipy==1.7.*' 'optuna==3.*' 'cython==0.29.*'

.pfnci/linux/tests/rocm-4-3.Dockerfile

@@ -30,8 +30,8 @@ ENV LDFLAGS "-L${ROCM_HOME}/lib"
 RUN git clone https://github.com/pyenv/pyenv.git /opt/pyenv
 ENV PYENV_ROOT "/opt/pyenv"
 ENV PATH "${PYENV_ROOT}/shims:${PYENV_ROOT}/bin:${PATH}"
-RUN pyenv install 3.7.11 && \
-    pyenv global 3.7.11 && \
+RUN pyenv install 3.8.11 && \
+    pyenv global 3.8.11 && \
     pip install -U setuptools pip
 
 RUN pip install -U 'numpy==1.20.*' 'scipy==1.6.*' 'optuna==3.*' 'cython==0.29.*'

.pfnci/matrix.yaml

@@ -15,7 +15,7 @@
   cutensor: null
   cusparselt: null
   cudnn: "7.6"
-  python: "3.7"
+  python: "3.8"
   numpy: "1.20"
   scipy: "1.6"
   optuna: "3"
@@ -75,7 +75,7 @@
   cutensor: "1.5"
   cusparselt: null
   cudnn: "8.0"
-  python: "3.7"
+  python: "3.8"
   numpy: "1.20"
   scipy: null
   optuna: null  # Avoid SciPy installation
@@ -105,7 +105,7 @@
   cutensor: "1.4"
   cusparselt: "0.2.0"
   cudnn: "8.1"
-  python: "3.7"
+  python: "3.8"
   numpy: "1.21"
   scipy: "1.7"
   optuna: "3"
@@ -358,7 +358,7 @@
   cutensor: null
   cusparselt: null
   cudnn: null
-  python: "3.7"
+  python: "3.8"
   numpy: "1.20"
   scipy: "1.6"
   optuna: "3"
@@ -448,7 +448,6 @@
 # Example (with Doctest) | Linux
 # Notes:
 # - Examples and Doctests are tested against the minimum supported Python version.
-#   (Uses Python 3.8 instead of 3.7 to test Array API support.)
 # - Libraries versions for doctests will be overridden by docs/requirements.txt
 # - Accelerators are disabled as doctests expect it (#5891)
 - project: "cupy.linux.cuda-example"

docker/rocm/Dockerfile

@@ -9,13 +9,11 @@ RUN apt-get update -y && \
     rm -rf /var/lib/apt/lists/* /var/cache/apt/archives/*
 
 RUN apt-get update -y && \
-    apt-get install -y --no-install-recommends python3.7 python3.7-distutils && \
-    update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.7 2 && \
+    apt-get install -y --no-install-recommends python3.8 && \
+    update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.8 2 && \
     update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 1
 
-RUN curl https://bootstrap.pypa.io/get-pip.py | sudo python3.7
-
-RUN pip3 install --no-cache-dir -U install setuptools pip
-RUN pip3 install --no-cache-dir -f https://pip.cupy.dev/pre/ "cupy-rocm-5-0[all]==12.0.0b3"
+RUN python3 -m pip install --no-cache-dir -U install setuptools pip
+RUN python3 -m pip install --no-cache-dir -f https://pip.cupy.dev/pre/ "cupy-rocm-5-0[all]==12.0.0b3"
 
 USER rocm-user

docs/source/install.rst

@@ -14,7 +14,7 @@ Requirements
     * This requirement is optional if you install CuPy from ``conda-forge``. However, you still need to have a compatible
       driver installed for your GPU. See :ref:`install_cupy_from_conda_forge` for details.
 
-* `Python <https://python.org/>`_: v3.7.0+ / v3.8.0+ / v3.9.0+ / v3.10.0+ / v3.11.0+
+* `Python <https://python.org/>`_: v3.8 / v3.9 / v3.10 / v3.11
 
 .. note::
 
@@ -25,9 +25,9 @@ Python Dependencies
 
 NumPy/SciPy-compatible API in CuPy v12 is based on NumPy 1.24 and SciPy 1.9, and has been tested against the following versions:
 
-* `NumPy <https://numpy.org/>`_: v1.20 / v1.21 / v1.22 / v1.23 / v1.24
+* `NumPy <https://numpy.org/>`_: v1.21 / v1.22 / v1.23 / v1.24
 
-* `SciPy <https://scipy.org/>`_ (*optional*): v1.6 / v1.7 / v1.8 / v1.9
+* `SciPy <https://scipy.org/>`_ (*optional*): v1.7 / v1.8 / v1.9
 
     * Required only when coping sparse matrices from GPU to CPU (see :doc:`../reference/scipy_sparse`.)
 

install/mypy.ini

@@ -11,7 +11,7 @@ disallow_untyped_defs = True
 ignore_errors = False
 ignore_missing_imports = True
 no_implicit_optional = True
-python_version = 3.7
+python_version = 3.8
 show_error_codes = True
 strict_equality = True
 strict_optional = True

setup.py

@@ -105,7 +105,6 @@
 License :: OSI Approved :: MIT License
 Programming Language :: Python
 Programming Language :: Python :: 3
-Programming Language :: Python :: 3.7
 Programming Language :: Python :: 3.8
 Programming Language :: Python :: 3.9
 Programming Language :: Python :: 3.10
@@ -138,7 +137,7 @@
     packages=find_packages(exclude=['install', 'tests']),
     package_data=package_data,
     zip_safe=False,
-    python_requires='>=3.7',
+    python_requires='>=3.8',
     setup_requires=setup_requires,
     install_requires=install_requires,
     tests_require=tests_require,

tests/cupy_tests/lib_tests/test_polynomial.py

@@ -237,7 +237,7 @@ def test_poly1d_str(self, xp, dtype):
         return str(xp.poly1d(a))
 
     @testing.for_all_dtypes()
-    @testing.numpy_cupy_allclose(rtol=1e-6)
+    @testing.numpy_cupy_allclose(rtol={numpy.float16: 1e-2, 'default': 1e-6})
     def test_poly1d_call(self, xp, dtype):
         a = testing.shaped_arange((5,), xp, dtype)
         b = xp.poly1d(a)
@@ -713,7 +713,7 @@ def test_polyfit_weighted_diff_types(self, xp, dtype1, dtype2, dtype3):
 class TestPolyval(Poly1dTestBase):
 
     @testing.for_all_dtypes()
-    @testing.numpy_cupy_allclose(rtol=1e-3)
+    @testing.numpy_cupy_allclose(rtol={numpy.float16: 1e-2, 'default': 1e-3})
     def test_polyval(self, xp, dtype):
         a1 = self._get_input(xp, self.type_l, dtype, size=5)
         a2 = self._get_input(xp, self.type_r, dtype, size=5)
@@ -744,7 +744,7 @@ def test_polyval(self, dtype):
 class TestPolyvalShapeCombination:
 
     @testing.for_all_dtypes()
-    @testing.numpy_cupy_allclose(rtol=1e-6)
+    @testing.numpy_cupy_allclose(rtol={numpy.float16: 1e-2, 'default': 1e-6})
     def test_polyval(self, xp, dtype):
         a = testing.shaped_arange(self.shape1, xp, dtype)
         b = testing.shaped_arange(self.shape2, xp, dtype)
@@ -770,7 +770,7 @@ def test_polyval(self, dtype):
 class TestPolyvalDtypesCombination:
 
     @testing.for_all_dtypes_combination(names=['dtype1', 'dtype2'], full=True)
-    @testing.numpy_cupy_allclose(rtol=1e-6)
+    @testing.numpy_cupy_allclose(rtol={numpy.float16: 1e-2, 'default': 1e-6})
     def test_polyval_diff_types_array_array(self, xp, dtype1, dtype2):
         a = testing.shaped_arange((10,), xp, dtype1)
         b = testing.shaped_arange((3,), xp, dtype2)

tests/cupy_tests/linalg_tests/test_einsum.py

@@ -339,7 +339,8 @@ def test_numpy_15961_list(self, xp, do_opt):
 class TestEinSumUnaryOperation:
 
     @testing.for_all_dtypes(no_bool=False)
-    @testing.numpy_cupy_allclose(contiguous_check=False)
+    @testing.numpy_cupy_allclose(
+        rtol={numpy.float16: 1e-1, 'default': 1e-7}, contiguous_check=False)
     def test_einsum_unary(self, xp, dtype):
         a = testing.shaped_arange(self.shape_a, xp, dtype)
         out = xp.einsum(self.subscripts, a)
@@ -360,7 +361,8 @@ def test_einsum_unary_views(self, xp, dtype):
         ['dtype_a', 'dtype_out'],
         no_bool=False,
         no_complex=True)  # avoid ComplexWarning
-    @testing.numpy_cupy_allclose(contiguous_check=False)
+    @testing.numpy_cupy_allclose(
+        rtol={numpy.float16: 1e-1, 'default': 1e-7}, contiguous_check=False)
     def test_einsum_unary_dtype(self, xp, dtype_a, dtype_out):
         if not numpy.can_cast(dtype_a, dtype_out):
             pytest.skip()
@@ -436,7 +438,8 @@ class TestEinSumBinaryOperation:
         ['dtype_a', 'dtype_b'],
         no_bool=False,
         no_float16=False)
-    @testing.numpy_cupy_allclose(contiguous_check=False)
+    @testing.numpy_cupy_allclose(
+        rtol={numpy.float16: 1e-2, 'default': 1e-7}, contiguous_check=False)
     def test_einsum_binary(self, xp, dtype_a, dtype_b):
         a = testing.shaped_arange(self.shape_a, xp, dtype_a)
         b = testing.shaped_arange(self.shape_b, xp, dtype_b)