Add microarch-level packages

recipes/x86_64_level/LICENSE.txt

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+Copyright (c) 2023, conda-forge
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of staged-recipes nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

recipes/x86_64_level/conda_build_config.yaml

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+# This file is auto-generated by recipe/gen.py
+microarchitecture:
+- x86_64
+- nocona
+- core2
+- k10
+- x86_64_v2
+- nehalem
+- westmere
+- sandybridge
+- ivybridge
+- bulldozer
+- piledriver
+- steamroller
+- x86_64_v3
+- haswell
+- broadwell
+- skylake
+- mic_knl
+- cannonlake
+- excavator
+- zen
+- zen2
+- zen3
+- x86_64_v4
+- skylake_avx512
+- cascadelake
+- icelake
+- zen4
+- ppc64le
+- power8le
+- power9le
+- power10le
+
+level:
+- 1
+- 1
+- 1
+- 1
+- 2
+- 2
+- 2
+- 2
+- 2
+- 2
+- 2
+- 2
+- 3
+- 3
+- 3
+- 3
+- 3
+- 3
+- 3
+- 3
+- 3
+- 3
+- 4
+- 4
+- 4
+- 4
+- 4
+- 8
+- 8
+- 9
+- 10
+
+family:
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- x86_64
+- ppc64le
+- ppc64le
+- ppc64le
+- ppc64le
+
+zip_keys:
+  - - microarchitecture
+    - level
+    - family

recipes/x86_64_level/gen.py

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+import archspec.cpu
+
+archs = archspec.cpu.TARGETS
+
+levels = {}
+
+name_mapping = {
+  "x86_64": 1,
+  "x86_64_v2": 2,
+  "x86_64_v3": 3,
+  "x86_64_v4": 4,
+
+  "ppc64le": 8,
+  "power8le": 8,
+  "power9le": 9,
+  "power10le": 10,
+}
+
+for arch_name, arch in archs.items():
+    if arch.family.name not in ("x86_64", "ppc64le"):
+        continue
+    levels[(arch_name, arch.family.name)] = max(
+        1,
+        name_mapping.get(arch_name, 0),
+        *(name_mapping.get(parent.name, 0) for parent in (arch.ancestors or ()))
+    )
+
+levels = {arch: level for arch, level in sorted(
+    levels.items(), key=lambda kv: kv[1])}
+
+print(f"# This file is auto-generated by recipe/gen.py with archspec={archspec.__version__}")
+print("microarchitecture:")
+for arch, _ in levels.keys():
+    print(f"- {arch}")
+print()
+print("level:")
+for level in levels.values():
+    print(f"- {level}")
+print()
+print("family:")
+for _, family in levels.keys():
+    print(f"- {family}")
+print("""
+zip_keys:
+  - - microarchitecture
+    - level
+    - family""")

recipes/x86_64_level/install_scripts.sh

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+mkdir -p "${PREFIX}"/etc/conda/{de,}activate.d/
+
+if [[ "${family}" == "x86_64" ]]; then
+  if [[ "${level}" == "1" ]]; then
+    flag="-march=x86-64"
+  else
+    flag="-march=x86-64-v${level}"
+  fi
+elif [[ "${family}" == "ppc64le" ]]; then
+  flag="-mcpu=${level}"
+fi
+
+cat << EOF > "${PREFIX}/etc/conda/activate.d/~activate-${family}-level.sh"
+export CXXFLAGS="\${CXXFLAGS} ${flag}"
+export CFLAGS="\${CFLAGS} ${flag}"
+export CPPFLAGS="\${CPPFLAGS} ${flag}"
+EOF

recipes/x86_64_level/meta.yaml

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+{% set number = 0 %}
+
+package:
+  name: microarch-level-split
+  version: {{ level }}
+
+build:
+  number: {{ number }}
+  string: {{ number }}_{{ microarchitecture }}
+  noarch: generic
+
+outputs:
+  - name: _{{ family }}-microarch-level
+    build:
+      number: {{ number }}
+      string: {{ number }}_{{ microarchitecture }}
+      noarch: generic
+      run_exports:
+        strong:
+          - _{{ family }}-microarch-level >={{ level }}
+    requirements:
+      run:
+        - __archspec  1={{ microarchitecture }}
+
+    about:
+      home: https://github.com/conda-forge/microarch-level-feedstock
+      summary: 'Meta package to build conda recipes with microarchitecture levels'
+      description: |
+        The meta-package _{{ family }}-microarch-level enforces the microarchitecture in the
+        user system.
+
+        Note that a user would need the archspec conda package installed
+        in the base environment where conda/mamba is run from.
+
+        See {{ family }}-microarch-level for using this in conda recipes
+      license: BSD-3-Clause
+      license_file: LICENSE.txt
+
+  - name: {{ family }}-microarch-level
+    script: install_scripts.sh
+    build:
+      number: {{ number }}
+      string: {{ number }}_{{ microarchitecture }}
+      noarch: generic
+      run_exports:
+        strong:
+          - _{{ family }}-microarch-level >={{ level }}
+    requirements:
+      run:
+        - __unix
+    about:
+      home: https://github.com/conda-forge/microarch-level-feedstock
+      summary: 'Meta package to build conda recipes with microarchitecture levels'
+      description: |
+        Use the meta-package {{ family }}-microarch-level in requirements/build in conda
+        recipes to set up the compiler flags and set up the virtual package
+        requirements in the run requirements.
+
+        When building packages on CI, level=4 will not be guaranteed, so
+        you can only use level<=3 to build.
+
+        The run_exports only has a lower bound and therefore a level=2
+        build can be installed on a level=3 user system. A tighter bound
+        is not added because we want to be able to test both level=2 and
+        level=3 on a CI machine with level=3.
+        Therefore in order to prioritise the highest level, use the build
+        number to prioritise the level.
+
+        Only supported on Linux and macOS.
+      license: BSD-3-Clause
+      license_file: LICENSE.txt
+
+about:
+  home: https://github.com/conda-forge/microarch-level-feedstock
+  summary: 'Meta package to build conda recipes with microarchitecture levels'
+  license: BSD-3-Clause
+  license_file: LICENSE.txt
+
+extra:
+  feedstock-name: microarch-level
+  recipe-maintainers:
+    - isuruf