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[flake8]
max-line-length=120
exclude=pystencils/jupyter.py,
pystencils/plot.py
pystencils/session.py
exclude=src/pystencils/jupyter.py,
src/pystencils/plot.py
src/pystencils/session.py
ignore = W293 W503 W291 C901 E741
pystencils/_version.py export-subst
src/pystencils/_version.py export-subst
......@@ -5,7 +5,7 @@ __pycache__
*.vti
/build
/dist
/*.egg-info
*.egg-info
.cache
_build
/html_doc
......@@ -15,12 +15,12 @@ _build
_local_tmp
RELEASE-VERSION
test-report
pystencils/boundaries/createindexlistcython.c
pystencils/boundaries/createindexlistcython.*.so
pystencils_tests/tmp
pystencils_tests/var
pystencils_tests/kerncraft_inputs/.2d-5pt.c_kerncraft/
pystencils_tests/kerncraft_inputs/.3d-7pt.c_kerncraft/
src/pystencils/boundaries/createindexlistcython.c
src/pystencils/boundaries/createindexlistcython.*.so
tests/tmp
tests/var
tests/kerncraft_inputs/.2d-5pt.c_kerncraft/
tests/kerncraft_inputs/.3d-7pt.c_kerncraft/
report.xml
coverage_report/
......
stages:
- pretest
- test
- nightly
- docs
- deploy
# -------------------------- Templates ------------------------------------------------------------------------------------
# Base configuration for jobs meant to run at every commit
.every-commit:
rules:
- if: $CI_PIPELINE_SOURCE != "schedule"
# Configuration for jobs meant to run on each commit to pycodegen/pystencils/master
.every-commit-master:
rules:
- if: '$CI_PIPELINE_SOURCE != "schedule" && $CI_PROJECT_PATH == "pycodegen/pystencils" && $CI_COMMIT_BRANCH == "master"'
# Base configuration for jobs meant to run at a schedule
.scheduled:
rules:
- if: $CI_PIPELINE_SOURCE == "schedule"
# -------------------------- Tests ------------------------------------------------------------------------------------
# Normal test - runs on every commit all but "long run" tests
tests-and-coverage:
stage: pretest
except:
variables:
- $ENABLE_NIGHTLY_BUILDS
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/full
extends: .every-commit
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/full:cupy12.3
before_script:
- pip install -e .
script:
- pip install sympy --upgrade
- env
- pip list
- export NUM_CORES=$(nproc --all)
- mkdir -p ~/.config/matplotlib
- echo "backend:template" > ~/.config/matplotlib/matplotlibrc
- mkdir public
- py.test -v -n $NUM_CORES --cov-report html --cov-report xml --cov-report term --cov=. -m "not longrun" --html test-report/index.html --junitxml=report.xml
- python3 -m coverage xml
- pytest -v -n $NUM_CORES --cov-report html --cov-report xml --cov-report term --cov=. -m "not longrun" --html test-report/index.html --junitxml=report.xml
- python -m coverage xml
tags:
- docker
- cuda11
......@@ -44,9 +62,11 @@ tests-and-coverage-with-longrun:
stage: test
when: manual
allow_failure: true
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/full
script:
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/full:cupy12.3
before_script:
- pip install sympy --upgrade
- pip install -e .
script:
- env
- pip list
- export NUM_CORES=$(nproc --all)
......@@ -62,13 +82,14 @@ tests-and-coverage-with-longrun:
# pipeline with latest python version
latest-python:
stage: test
except:
variables:
- $ENABLE_NIGHTLY_BUILDS
extends: .every-commit
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/latest_python
before_script:
- pip install -e .
script:
- env
- pip list
- pip install -e .
- export NUM_CORES=$(nproc --all)
- mkdir -p ~/.config/matplotlib
- echo "backend:template" > ~/.config/matplotlib/matplotlibrc
......@@ -86,9 +107,6 @@ latest-python:
# Minimal tests in windows environment
#minimal-windows:
# stage: test
# except:
# variables:
# - $ENABLE_NIGHTLY_BUILDS
# tags:
# - win
# script:
......@@ -102,23 +120,19 @@ latest-python:
ubuntu:
stage: test
except:
variables:
- $ENABLE_NIGHTLY_BUILDS
extends: .every-commit
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/ubuntu
before_script:
- apt-get -y remove python3-sympy
- ln -s /usr/include/locale.h /usr/include/xlocale.h
- pip3 install `grep -Eo 'sympy[>=]+[0-9\.]+' setup.py | sed 's/>/=/g'`
# - pip3 install `grep -Eo 'sympy[>=]+[0-9\.]+' setup.py | sed 's/>/=/g'`
- pip3 install -e .
script:
- export NUM_CORES=$(nproc --all)
- mkdir -p ~/.config/matplotlib
- echo "backend:template" > ~/.config/matplotlib/matplotlibrc
- sed -i 's/--doctest-modules //g' pytest.ini
- env
- pip3 list
- pytest-3 -v -n $NUM_CORES -m "not longrun" --junitxml=report.xml
- pip list
- pytest -v -n $NUM_CORES -m "not longrun" --junitxml=report.xml
tags:
- docker
- cuda11
......@@ -130,10 +144,11 @@ ubuntu:
.multiarch_template:
stage: test
except:
variables:
- $ENABLE_NIGHTLY_BUILDS
extends: .every-commit
allow_failure: true
before_script: &multiarch_before_script
# - pip3 install -v .
- export PYTHONPATH=src
- python3 -c "import pystencils as ps; ps.cpu.cpujit.read_config()"
- sed -i '/^fail_under.*/d' pytest.ini
script:
......@@ -143,13 +158,19 @@ ubuntu:
- sed -i 's/--doctest-modules //g' pytest.ini
- env
- pip3 list
- pytest-3 -v -n $NUM_CORES --junitxml=report.xml pystencils_tests/test_*vec*.py pystencils_tests/test_random.py pystencils_tests/test_half_precision.py
- python3 -m pytest -v -n $NUM_CORES --cov-report html --cov-report xml --cov=. --junitxml=report.xml tests/test_*vec*.py tests/test_random.py tests/test_half_precision.py
- python3 -m coverage xml
tags:
- docker
- AVX
artifacts:
when: always
paths:
- coverage_report
reports:
coverage_report:
coverage_format: cobertura
path: coverage.xml
junit: report.xml
arm64v8:
......@@ -175,32 +196,30 @@ arm64v9:
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/arm64
before_script:
- *multiarch_before_script
- sed -i s/march=native/march=armv8-a+sve/g ~/.config/pystencils/config.json
- sed -i s/march=native/march=armv9-a+sve2+sme/g ~/.config/pystencils/config.json
- sed -i s/g\+\+/clang++/g ~/.config/pystencils/config.json
riscv64:
# RISC-V vector extension are currently not supported by GCC.
# Also, the image is built without the libomp package which is not yet available on Ubuntu.
extends: .multiarch_template
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/riscv64
variables:
# explicitly set SIMD as detection does not appear to work on QEMU
# explicitly set SIMD as detection requires QEMU >= 8.1
PYSTENCILS_SIMD: "rvv"
QEMU_CPU: "rv64,v=true"
QEMU_CPU: "rv64,v=true,zicboz=true"
before_script:
- *multiarch_before_script
- sed -i 's/march=native/march=rv64imfdv/g' ~/.config/pystencils/config.json
- sed -i s/g\+\+/clang++/g ~/.config/pystencils/config.json
- sed -i 's/fopenmp/fopenmp=libgomp -I\/usr\/include\/riscv64-linux-gnu/g' ~/.config/pystencils/config.json
- sed -i 's/march=native/march=rv64imfdvzicboz/g' ~/.config/pystencils/config.json
- sed -i s/g\+\+/clang++-15/g ~/.config/pystencils/config.json
minimal-conda:
stage: pretest
except:
variables:
- $ENABLE_NIGHTLY_BUILDS
extends: .every-commit
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/minimal_conda
before_script:
- pip install -e .
script:
- python setup.py quicktest
- python quicktest.py
tags:
- docker
- cuda
......@@ -208,13 +227,13 @@ minimal-conda:
minimal-sympy-master:
stage: test
except:
variables:
- $ENABLE_NIGHTLY_BUILDS
extends: .every-commit
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/minimal_conda
before_script:
- pip install -e .
script:
- python -m pip install --upgrade git+https://github.com/sympy/sympy.git
- python setup.py quicktest
- python quicktest.py
allow_failure: true
tags:
- docker
......@@ -265,26 +284,57 @@ pycodegen-integration:
reports:
junit: pycodegen/*/report.xml
# -------------------- Scheduled Tasks --------------------------------------------------------------------------
# Nightly test against the latest (pre-release) version of SymPy published on PyPI
nightly-sympy:
stage: nightly
needs: []
extends: .scheduled
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/latest_python
before_script:
- pip install -e .
- pip install --upgrade --pre sympy
script:
- env
- pip list
- export NUM_CORES=$(nproc --all)
- mkdir -p ~/.config/matplotlib
- echo "backend:template" > ~/.config/matplotlib/matplotlibrc
- mkdir public
- pytest -v -n $NUM_CORES -m "not longrun" --junitxml=report.xml
tags:
- docker
- AVX
- cuda
artifacts:
when: always
reports:
junit: report.xml
# -------------------- Linter & Documentation --------------------------------------------------------------------------
flake8-lint:
stage: pretest
except:
variables:
- $ENABLE_NIGHTLY_BUILDS
extends: .every-commit
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/full
script:
- flake8 pystencils
- flake8 src/pystencils
tags:
- docker
build-documentation:
stage: test
stage: docs
extends: .every-commit
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/documentation
needs: []
before_script:
- pip install -e .
script:
- export PYTHONPATH=`pwd`
- mkdir html_doc
- sphinx-build -b html doc html_doc
- sphinx-build -W -b html doc html_doc
......@@ -297,7 +347,9 @@ build-documentation:
pages:
image: i10git.cs.fau.de:5005/pycodegen/pycodegen/full
extends: .every-commit-master
stage: deploy
needs: ["tests-and-coverage", "build-documentation"]
script:
- ls -l
- mv coverage_report html_doc
......@@ -307,5 +359,3 @@ pages:
- public
tags:
- docker
only:
- master@pycodegen/pystencils
include README.md
include COPYING.txt
include AUTHORS.txt
include CONTRIBUTING.md
CHANGELOG.md
global-include *.pyx
include versioneer.py
include pystencils/_version.py
include CHANGELOG.md
......@@ -81,4 +81,7 @@ Many thanks go to the [contributors](https://i10git.cs.fau.de/pycodegen/pystenci
If you use pystencils in a publication, please cite the following articles:
Overview:
- M. Bauer et al, Code Generation for Massively Parallel Phase-Field Simulations. Association for Computing Machinery, 2019. https://doi.org/10.1145/3295500.3356186
\ No newline at end of file
- M. Bauer et al, Code Generation for Massively Parallel Phase-Field Simulations. Association for Computing Machinery, 2019. https://doi.org/10.1145/3295500.3356186
Performance Modelling:
- D. Ernst et al, Analytical performance estimation during code generation on modern GPUs. Journal of Parallel and Distributed Computing, 2023. https://doi.org/10.1016/j.jpdc.2022.11.003
......@@ -8,7 +8,7 @@ import nbformat
import pytest
from nbconvert import PythonExporter
from pystencils.boundaries.createindexlistcython import * # NOQA
from pystencils.boundaries.createindexlist import * # NOQA
# Trigger config file reading / creation once - to avoid race conditions when multiple instances are creating it
# at the same time
from pystencils.cpu import cpujit
......@@ -40,48 +40,48 @@ def add_path_to_ignore(path):
collect_ignore = [os.path.join(SCRIPT_FOLDER, "doc", "conf.py"),
os.path.join(SCRIPT_FOLDER, "pystencils", "opencl", "opencl.autoinit")]
add_path_to_ignore('pystencils_tests/benchmark')
os.path.join(SCRIPT_FOLDER, "src", "pystencils", "opencl", "opencl.autoinit")]
add_path_to_ignore('tests/benchmark')
add_path_to_ignore('_local_tmp')
try:
import cupy
except ImportError:
collect_ignore += [os.path.join(SCRIPT_FOLDER, "pystencils_tests/test_gpu.py")]
add_path_to_ignore('pystencils/gpu')
collect_ignore += [os.path.join(SCRIPT_FOLDER, "tests/test_gpu.py")]
add_path_to_ignore('src/pystencils/gpu')
try:
import waLBerla
except ImportError:
collect_ignore += [os.path.join(SCRIPT_FOLDER, "pystencils_tests/test_aligned_array.py"),
os.path.join(SCRIPT_FOLDER, "pystencils_tests/test_datahandling_parallel.py"),
collect_ignore += [os.path.join(SCRIPT_FOLDER, "tests/test_aligned_array.py"),
os.path.join(SCRIPT_FOLDER, "tests/test_datahandling_parallel.py"),
os.path.join(SCRIPT_FOLDER, "doc/notebooks/03_tutorial_datahandling.ipynb"),
os.path.join(SCRIPT_FOLDER, "pystencils/datahandling/parallel_datahandling.py"),
os.path.join(SCRIPT_FOLDER, "pystencils_tests/test_small_block_benchmark.ipynb")]
os.path.join(SCRIPT_FOLDER, "src/pystencils/datahandling/parallel_datahandling.py"),
os.path.join(SCRIPT_FOLDER, "tests/test_small_block_benchmark.ipynb")]
try:
import blitzdb
except ImportError:
add_path_to_ignore('pystencils/runhelper')
collect_ignore += [os.path.join(SCRIPT_FOLDER, "pystencils_tests/test_parameterstudy.py")]
collect_ignore += [os.path.join(SCRIPT_FOLDER, "pystencils_tests/test_json_serializer.py")]
add_path_to_ignore('src/pystencils/runhelper')
collect_ignore += [os.path.join(SCRIPT_FOLDER, "tests/test_parameterstudy.py")]
collect_ignore += [os.path.join(SCRIPT_FOLDER, "tests/test_json_serializer.py")]
try:
import islpy
except ImportError:
collect_ignore += [os.path.join(SCRIPT_FOLDER, "pystencils/integer_set_analysis.py")]
collect_ignore += [os.path.join(SCRIPT_FOLDER, "src/pystencils/integer_set_analysis.py")]
try:
import graphviz
except ImportError:
collect_ignore += [os.path.join(SCRIPT_FOLDER, "pystencils/backends/dot.py")]
collect_ignore += [os.path.join(SCRIPT_FOLDER, "src/pystencils/backends/dot.py")]
collect_ignore += [os.path.join(SCRIPT_FOLDER, "doc/notebooks/01_tutorial_getting_started.ipynb")]
try:
import pyevtk
except ImportError:
collect_ignore += [os.path.join(SCRIPT_FOLDER, "pystencils/datahandling/vtk.py")]
collect_ignore += [os.path.join(SCRIPT_FOLDER, "src/pystencils/datahandling/vtk.py")]
collect_ignore += [os.path.join(SCRIPT_FOLDER, 'setup.py')]
......
[project]
name = "pystencils"
description = "Speeding up stencil computations on CPUs and GPUs"
dynamic = ["version"]
readme = "README.md"
authors = [
{ name = "Martin Bauer" },
{ name = "Jan Hönig " },
{ name = "Markus Holzer" },
{ name = "Frederik Hennig" },
{ email = "cs10-codegen@fau.de" },
]
license = { file = "COPYING.txt" }
requires-python = ">=3.10"
dependencies = ["sympy>=1.9,<=1.12.1", "numpy>=1.8.0", "appdirs", "joblib", "pyyaml", "fasteners"]
classifiers = [
"Development Status :: 4 - Beta",
"Framework :: Jupyter",
"Topic :: Software Development :: Code Generators",
"Topic :: Scientific/Engineering :: Physics",
"Intended Audience :: Developers",
"Intended Audience :: Science/Research",
"License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)",
]
[project.urls]
"Bug Tracker" = "https://i10git.cs.fau.de/pycodegen/pystencils/-/issues"
"Documentation" = "https://pycodegen.pages.i10git.cs.fau.de/pystencils/"
"Source Code" = "https://i10git.cs.fau.de/pycodegen/pystencils"
[project.optional-dependencies]
gpu = ['cupy']
alltrafos = ['islpy', 'py-cpuinfo']
bench_db = ['blitzdb', 'pymongo', 'pandas']
interactive = [
'matplotlib',
'ipy_table',
'imageio',
'jupyter',
'pyevtk',
'rich',
'graphviz',
]
use_cython = [
'Cython'
]
doc = [
'sphinx',
'sphinx_rtd_theme',
'nbsphinx',
'sphinxcontrib-bibtex',
'sphinx_autodoc_typehints',
'pandoc',
]
tests = [
'pytest',
'pytest-cov',
'pytest-html',
'ansi2html',
'pytest-xdist',
'flake8',
'nbformat',
'nbconvert',
'ipython',
'matplotlib',
'py-cpuinfo',
'randomgen>=1.18',
]
[build-system]
requires = [
"setuptools>=61",
"versioneer[toml]>=0.29",
# 'Cython'
]
build-backend = "setuptools.build_meta"
[tool.setuptools.package-data]
pystencils = [
"include/*.h",
"boundaries/createindexlistcython.pyx"
]
[tool.setuptools.packages.find]
where = ["src"]
include = ["pystencils", "pystencils.*"]
namespaces = false
[tool.versioneer]
# See the docstring in versioneer.py for instructions. Note that you must
# re-run 'versioneer.py setup' after changing this section, and commit the
# resulting files.
VCS = "git"
style = "pep440"
versionfile_source = "src/pystencils/_version.py"
versionfile_build = "pystencils/_version.py"
tag_prefix = "release/"
parentdir_prefix = "pystencils-"
#pragma once
extern "C++" {
#ifdef __CUDA_ARCH__
template <typename DTYPE_T, std::size_t DIMENSION> struct PyStencilsField {
DTYPE_T *data;
DTYPE_T shape[DIMENSION];
DTYPE_T stride[DIMENSION];
};
#else
#include <array>
template <typename DTYPE_T, std::size_t DIMENSION> struct PyStencilsField {
DTYPE_T *data;
std::array<DTYPE_T, DIMENSION> shape;
std::array<DTYPE_T, DIMENSION> stride;
};
#endif
}
#pragma once
#define POS_INFINITY __int_as_float(0x7f800000)
#define INFINITY POS_INFINITY
#define NEG_INFINITY __int_as_float(0xff800000)
#ifdef __HIPCC_RTC__
typedef __hip_uint8_t uint8_t;
typedef __hip_int8_t int8_t;
typedef __hip_uint16_t uint16_t;
typedef __hip_int16_t int16_t;
#endif
from typing import List, Union
import sympy
import sympy as sp
from sympy.codegen import Assignment
from sympy.codegen.rewriting import ReplaceOptim, optimize
from pystencils.astnodes import Block, Node, SympyAssignment
from pystencils.backends.cbackend import CustomCodeNode
from pystencils.functions import DivFunc
from pystencils.simp import AssignmentCollection
class NodeCollection:
def __init__(self, assignments: List[Union[Node, Assignment]]):
self.all_assignments = assignments
if all((isinstance(a, Assignment) for a in assignments)):
self.is_Nodes = False
self.is_Assignments = True
elif all((isinstance(n, Node) for n in assignments)):
self.is_Nodes = True
self.is_Assignments = False
else:
raise ValueError(f'The list "{assignments}" is mixed. Pass either a list of "pystencils.Assignments" '
f'or a list of "pystencils.astnodes.Node')
self.simplification_hints = {}
@staticmethod
def from_assignment_collection(assignment_collection: AssignmentCollection):
nodes = list()
for assignemt in assignment_collection.all_assignments:
if isinstance(assignemt, Assignment):
nodes.append(SympyAssignment(assignemt.lhs, assignemt.rhs))
elif isinstance(assignemt, Node):
nodes.append(assignemt)
else:
raise ValueError(f"Unknown node in the AssignmentCollection: {assignemt}")
return NodeCollection(nodes)
def evaluate_terms(self):
evaluate_constant_terms = ReplaceOptim(
lambda e: hasattr(e, 'is_constant') and e.is_constant and not e.is_integer,
lambda p: p.evalf()
)
evaluate_pow = ReplaceOptim(
lambda e: e.is_Pow and e.exp.is_Integer and abs(e.exp) <= 8,
lambda p: sp.UnevaluatedExpr(sp.Mul(*([p.base] * +p.exp), evaluate=False)) if p.exp > 0 else
(DivFunc(sp.Integer(1), p.base) if p.exp == -1 else
DivFunc(sp.Integer(1), sp.UnevaluatedExpr(sp.Mul(*([p.base] * -p.exp), evaluate=False))))
)
sympy_optimisations = [evaluate_constant_terms, evaluate_pow]
if self.is_Nodes:
def visitor(node):
if isinstance(node, CustomCodeNode):
return node
elif isinstance(node, Block):
return node.func([visitor(child) for child in node.args])
elif isinstance(node, Node):
return node.func(*[visitor(child) for child in node.args])
elif isinstance(node, sympy.Basic):
return optimize(node, sympy_optimisations)
else:
raise NotImplementedError(f'{node} {type(node)} has no valid visitor')
self.all_assignments = [visitor(assignment) for assignment in self.all_assignments]
else:
self.all_assignments = [Assignment(a.lhs, optimize(a.rhs, sympy_optimisations))
if hasattr(a, 'lhs')
else a for a in self.all_assignments]
import numpy as np
import pytest
import pystencils as ps
from pystencils import Assignment, Field, CreateKernelConfig, create_kernel, Target
def test_indexed_kernel():
arr = np.zeros((3, 4))
dtype = np.dtype([('x', int), ('y', int), ('value', arr.dtype)])
index_arr = np.zeros((3,), dtype=dtype)
index_arr[0] = (0, 2, 3.0)
index_arr[1] = (1, 3, 42.0)
index_arr[2] = (2, 1, 5.0)
indexed_field = Field.create_from_numpy_array('index', index_arr)
normal_field = Field.create_from_numpy_array('f', arr)
update_rule = Assignment(normal_field[0, 0], indexed_field('value'))
config = CreateKernelConfig(index_fields=[indexed_field])
ast = create_kernel([update_rule], config=config)
kernel = ast.compile()
kernel(f=arr, index=index_arr)
code = ps.get_code_str(kernel)
for i in range(index_arr.shape[0]):
np.testing.assert_allclose(arr[index_arr[i]['x'], index_arr[i]['y']], index_arr[i]['value'], atol=1e-13)
def test_indexed_gpu_kernel():
pytest.importorskip("cupy")
import cupy as cp
arr = np.zeros((3, 4))
dtype = np.dtype([('x', int), ('y', int), ('value', arr.dtype)])
index_arr = np.zeros((3,), dtype=dtype)
index_arr[0] = (0, 2, 3.0)
index_arr[1] = (1, 3, 42.0)
index_arr[2] = (2, 1, 5.0)
indexed_field = Field.create_from_numpy_array('index', index_arr)
normal_field = Field.create_from_numpy_array('f', arr)
update_rule = Assignment(normal_field[0, 0], indexed_field('value'))
config = CreateKernelConfig(target=Target.GPU, index_fields=[indexed_field])
ast = create_kernel([update_rule], config=config)
kernel = ast.compile()
gpu_arr = cp.asarray(arr)
gpu_index_arr = cp.ndarray(index_arr.shape, dtype=index_arr.dtype)
gpu_index_arr.set(index_arr)
kernel(f=gpu_arr, index=gpu_index_arr)
arr = gpu_arr.get()
for i in range(index_arr.shape[0]):
np.testing.assert_allclose(arr[index_arr[i]['x'], index_arr[i]['y']], index_arr[i]['value'], atol=1e-13)
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import pytest
import pystencils
from sympy import oo
@pytest.mark.parametrize('type', ('float32', 'float64', 'int64'))
@pytest.mark.parametrize('negative', (False, 'Negative'))
@pytest.mark.parametrize('target', (pystencils.Target.CPU, pystencils.Target.GPU))
def test_print_infinity(type, negative, target):
x = pystencils.fields(f'x: {type}[1d]')
if negative:
assignment = pystencils.Assignment(x.center, -oo)
else:
assignment = pystencils.Assignment(x.center, oo)
ast = pystencils.create_kernel(assignment, data_type=type, target=target)
if target == pystencils.Target.GPU:
pytest.importorskip('cupy')
ast.compile()
print(ast.compile().code)
# -*- coding: utf-8 -*-
#
# Copyright © 2019 Stephan Seitz <stephan.seitz@fau.de>
#
# Distributed under terms of the GPLv3 license.
"""
"""
import pytest
import pystencils
from pystencils.backends.cbackend import CBackend
class UnsupportedNode(pystencils.astnodes.Node):
def __init__(self):
super().__init__()
def test_print_unsupported_node():
with pytest.raises(NotImplementedError, match='CBackend does not support node of type UnsupportedNode'):
CBackend()(UnsupportedNode())
import numpy as np
import sympy as sp
from pystencils import Assignment, Field, TypedSymbol, create_kernel, make_slice
from pystencils.simp import sympy_cse_on_assignment_list
def test_sliced_iteration():
size = (4, 4)
src_arr = np.ones(size)
dst_arr = np.zeros_like(src_arr)
src_field = Field.create_from_numpy_array('src', src_arr)
dst_field = Field.create_from_numpy_array('dst', dst_arr)
a, b = sp.symbols("a b")
update_rule = Assignment(dst_field[0, 0],
(a * src_field[0, 1] + a * src_field[0, -1] +
b * src_field[1, 0] + b * src_field[-1, 0]) / 4)
x_end = TypedSymbol("x_end", "int")
s = make_slice[1:x_end, 1]
x_end_value = size[1] - 1
kernel = create_kernel(sympy_cse_on_assignment_list([update_rule]), iteration_slice=s).compile()
kernel(src=src_arr, dst=dst_arr, a=1.0, b=1.0, x_end=x_end_value)
expected_result = np.zeros(size)
expected_result[1:x_end_value, 1] = 1
np.testing.assert_almost_equal(expected_result, dst_arr)
[pytest]
testpaths = src tests doc/notebooks
pythonpath = src
python_files = test_*.py *_test.py scenario_*.py
norecursedirs = *.egg-info .git .cache .ipynb_checkpoints htmlcov
addopts = --doctest-modules --durations=20 --cov-config pytest.ini
......@@ -17,20 +19,21 @@ filterwarnings =
[run]
branch = True
source = pystencils
pystencils_tests
source = src/pystencils
tests
omit = doc/*
pystencils_tests/*
tests/*
setup.py
quicktest.py
conftest.py
versioneer.py
pystencils/jupytersetup.py
pystencils/cpu/msvc_detection.py
pystencils/sympy_gmpy_bug_workaround.py
pystencils/cache.py
pystencils/pacxx/benchmark.py
pystencils/_version.py
src/pystencils/jupytersetup.py
src/pystencils/cpu/msvc_detection.py
src/pystencils/sympy_gmpy_bug_workaround.py
src/pystencils/cache.py
src/pystencils/pacxx/benchmark.py
src/pystencils/_version.py
venv/
[report]
......