Introduce dpctl/sycl.pxd

.flake8

@@ -32,3 +32,4 @@ per-file-ignores =
     examples/cython/sycl_buffer/_buffer_example.pyx: E999, E225, E402
     examples/cython/sycl_direct_linkage/_buffer_example.pyx: E999, E225, E402
     examples/cython/usm_memory/blackscholes.pyx: E999, E225, E226, E402
+    examples/cython/use_dpctl_sycl/use_dpctl_sycl/_cython_api.pyx: E999, E225, E226, E402

.github/workflows/conda-package.yml

@@ -473,7 +473,12 @@ jobs:
             CC=dpcpp CXX=dpcpp LDSHARED="dpcpp -shared" \
                    python setup.py build_ext --inplace || exit 1
             conda deactivate
-            LD_LIBRARY_PATH=${CONDA_PREFIX}/lib python run.py || exit 1
+            if [ -e tests ]
+            then
+               LD_LIBRARY_PATH=${CONDA_PREFIX}/lib python -m pytest tests || exit 1
+            else
+               LD_LIBRARY_PATH=${CONDA_PREFIX}/lib python run.py || exit 1
+            fi
             popd
           done
           cd ../c

dpctl/sycl.pxd

@@ -0,0 +1,67 @@
+#  Copyright 2022 Intel Corporation
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+# distutils: language = c++
+# cython: language_level=3
+
+# SYCL static imports for Cython
+
+from . cimport _backend as dpctl_backend
+
+
+cdef extern from "CL/sycl.hpp" namespace "sycl":
+    cdef cppclass queue "sycl::queue":
+        pass
+
+    cdef cppclass device "sycl::device":
+        pass
+
+    cdef cppclass context "sycl::context":
+        pass
+
+    cdef cppclass event "sycl::event":
+        pass
+
+    cdef cppclass kernel "sycl::kernel":
+        pass
+
+    cdef cppclass executable_kernel_bundle \
+        "sycl::kernel_bundle<sycl::bundle_state::executable>":
+        pass
+
+cdef extern from "syclinterface/dpctl_sycl_type_casters.hpp" \
+    namespace "dpctl::syclinterface":
+    # queue
+    cdef dpctl_backend.DPCTLSyclQueueRef wrap_queue \
+        "dpctl::syclinterface::wrap<sycl::queue>" (const queue *)
+    cdef queue * unwrap_queue "dpctl::syclinterface::unwrap<sycl::queue>" (
+        dpctl_backend.DPCTLSyclQueueRef)
+
+    # device
+    cdef dpctl_backend.DPCTLSyclDeviceRef wrap_device \
+        "dpctl::syclinterface::wrap<sycl::device>" (const device *)
+    cdef device * unwrap_device "dpctl::syclinterface::unwrap<sycl::device>" (
+        dpctl_backend.DPCTLSyclDeviceRef)
+
+    # context
+    cdef dpctl_backend.DPCTLSyclContextRef wrap_context \
+        "dpctl::syclinterface::wrap<sycl::context>" (const context *)
+    cdef context * unwrap_context "dpctl::syclinterface::unwrap<sycl::context>" (
+        dpctl_backend.DPCTLSyclContextRef)
+
+    # event
+    cdef dpctl_backend.DPCTLSyclEventRef wrap_event \
+        "dpctl::syclinterface::wrap<sycl::event>" (const event *)
+    cdef event * unwrap_event "dpctl::syclinterface::unwrap<sycl::event>" (
+        dpctl_backend.DPCTLSyclEventRef)

examples/cython/use_dpctl_sycl/.gitignore

@@ -0,0 +1,2 @@
+use_dpctl_sycl/_cython_api.cpp
+*~

examples/cython/use_dpctl_sycl/README.md

@@ -0,0 +1,20 @@
+# Example illustrating use of dpctl.sycl in Cython
+
+Dpctl include `dpctl/sycl.pxd` file with incomplete definitions
+of SYCL runtime classes and conversion routines from SYCLInterface
+library opaque pointers to pointers to these SYCL classes.
+
+This files simplifies usage of SYCL routines from Python extensions
+written in Cython.
+
+## Building
+
+```bash
+python setup.py develop
+```
+
+## Testing
+
+```bash
+python -m pytest tests
+```

examples/cython/use_dpctl_sycl/setup.py

@@ -0,0 +1,53 @@
+#                      Data Parallel Control (dpctl)
+#
+# Copyright 2020-2022 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import Cython.Build
+import setuptools
+from setuptools.command.build_ext import build_ext as build_ext_base
+
+import dpctl
+
+
+class custom_build_ext(build_ext_base):
+    def build_extensions(self):
+        self.compiler.set_executable("compiler_so", "icx -fsycl -fPIC")
+        self.compiler.set_executable("compiler_cxx", "icpx -fsycl -fPIC")
+        self.compiler.set_executable(
+            "linker_so",
+            "icpx -fsycl -shared -fpic -fsycl-device-code-split=per_kernel",
+        )
+        super().build_extensions()
+
+
+ext = setuptools.Extension(
+    "use_dpctl_sycl._cython_api",
+    ["./use_dpctl_sycl/_cython_api.pyx"],
+    include_dirs=[dpctl.get_include(), "./use_dpctl_sycl"],
+    language="c++",
+)
+
+(cythonized_ext,) = Cython.Build.cythonize(
+    [
+        ext,
+    ]
+)
+
+setuptools.setup(
+    name="use_dpctl_sycl",
+    version="0.0.0",
+    ext_modules=[cythonized_ext],
+    cmdclass={"build_ext": custom_build_ext},
+)

examples/cython/use_dpctl_sycl/tests/test_example.py

@@ -0,0 +1,48 @@
+#                      Data Parallel Control (dpctl)
+#
+# Copyright 2020-2022 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import pytest
+import use_dpctl_sycl
+
+import dpctl
+
+
+def test_device_name():
+    try:
+        d = dpctl.SyclDevice()
+    except dpctl.SyclDeviceCreationError:
+        pytest.skip("Could not create default device. Nothing to do")
+    d_n = use_dpctl_sycl.device_name(d)
+    assert d_n.decode("utf-8") == d.name
+
+
+def test_device_driver_version():
+    try:
+        d = dpctl.SyclDevice()
+    except dpctl.SyclDeviceCreationError:
+        pytest.skip("Could not create default device. Nothing to do")
+    d_dv = use_dpctl_sycl.device_driver_version(d)
+    assert d_dv.decode("utf-8") == d.driver_version
+
+
+def test_device_copy():
+    try:
+        d = dpctl.SyclDevice()
+    except dpctl.SyclDeviceCreationError:
+        pytest.skip("Could not create default device. Nothing to do")
+    d_copy = use_dpctl_sycl.device_copy(d)
+    assert d_copy == d
+    assert d_copy.addressof_ref() != d.addressof_ref()

examples/cython/use_dpctl_sycl/use_dpctl_sycl/__init__.py

@@ -0,0 +1,23 @@
+#                      Data Parallel Control (dpctl)
+#
+# Copyright 2020-2022 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from ._cython_api import device_copy, device_driver_version, device_name
+
+__all__ = [
+    "device_name",
+    "device_driver_version",
+    "device_copy",
+]

examples/cython/use_dpctl_sycl/use_dpctl_sycl/_cython_api.pyx

@@ -0,0 +1,53 @@
+#                      Data Parallel Control (dpctl)
+#
+# Copyright 2020-2022 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# distutils: language = c++
+# cython: language_level=3
+# cython: linetrace=True
+
+cimport libcpp.string
+
+cimport dpctl
+cimport dpctl.sycl
+
+
+cdef extern from "utils.hpp":
+    cdef libcpp.string.string get_device_name(dpctl.sycl.device)
+    cdef libcpp.string.string get_device_driver_version(dpctl.sycl.device)
+    cdef dpctl.sycl.device *copy_device(dpctl.sycl.device)
+
+
+def device_name(dpctl.SyclDevice dev):
+    cdef dpctl.DPCTLSyclDeviceRef d_ref = dev.get_device_ref()
+    cdef const dpctl.sycl.device *dpcpp_device = dpctl.sycl.unwrap_device(d_ref)
+
+    return get_device_name(dpcpp_device[0])
+
+
+def device_driver_version(dpctl.SyclDevice dev):
+    cdef dpctl.DPCTLSyclDeviceRef d_ref = dev.get_device_ref()
+    cdef const dpctl.sycl.device *dpcpp_device = dpctl.sycl.unwrap_device(d_ref)
+
+    return get_device_driver_version(dpcpp_device[0])
+
+
+cpdef dpctl.SyclDevice device_copy(dpctl.SyclDevice dev):
+    cdef dpctl.DPCTLSyclDeviceRef d_ref = dev.get_device_ref()
+    cdef const dpctl.sycl.device *dpcpp_device = dpctl.sycl.unwrap_device(d_ref)
+    cdef dpctl.sycl.device *copied_device = copy_device(dpcpp_device[0])
+    cdef dpctl.DPCTLSyclDeviceRef copied_d_ref = dpctl.sycl.wrap_device(copied_device)
+
+    return dpctl.SyclDevice._create(copied_d_ref)

examples/cython/use_dpctl_sycl/use_dpctl_sycl/utils.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <CL/sycl.hpp>
+#include <string>
+
+std::string get_device_name(sycl::device d)
+{
+    return d.get_info<sycl::info::device::name>();
+}
+
+std::string get_device_driver_version(sycl::device d)
+{
+    return d.get_info<sycl::info::device::driver_version>();
+}
+
+sycl::device *copy_device(const sycl::device &d)
+{
+    auto copy_ptr = new sycl::device(d);
+    return copy_ptr;
+}