CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[dev]

Added

• Added dpctl.program.SyclKernel.max_sub_group_size property #1208.

Changed

• Removed dpctl.select_host_device, dpctl.has_host_device, dpctl.SyclDevice.is_host, and dpctl.SyclDevice.has_aspect_host since support for host device has been removed in DPC++ 2023 and from SYCL 2020 spec #1208.

Fixed

[0.14.0] - 11/18/2022

Added

• Implemented dpctl.tensor.linspace function from array-API #875.
• Implemented dpctl.tensor.eye function from array-API #896.
• Implemented dpctl.tensor.tril and dpctl.tensor.triu functions from array-API #910.
• Added data type objects to dpctl.tensor namespace, finfo, iinfo, can_cast, and result_type functions #913.
• Implemented dpctl.tensor.meshgrid creation function from array-API #920.
• Implemented convenience class to represent output of dpctl.tensor.usm_ndarray.flags property #921.
• Added new device attributes and kernel's device-specific attributes #894.
• Added dpctl.utils.onetrace_enabled context manager for targeted trace collection #903.
• Added support for stream keyword in __dlpack__ method, enabling support for sending usm_ndarray using mpi4py #906.
• dpctl.tensor.asarray can now transition data between incompatible devices, #951.
• Introduced "syclinterface/dpctl_sycl_types_casters.hpp" header file with declaration of conversion routines between SYCL type pointers and SyclInterface library opaque pointers #960.
• Added C-API to dpctl.program.SyclKernel and dpctl.program.SyclProgram. Added type casters for new types to "dpctl4pybind11" and added an example demonstrating its use #970.
• Introduced "dpctl/sycl.pxd" Cython declaration file to streamline use of SYCL functions from Cython, and added an example demonstrating its use #981.
• Added experimental support for sharing data allocated on sub-devices via dlpack #984.
• Added dpctl.SyclDevice.sub_group_sizes property to retrieve supported sizes of sub-group by the device #985.

Changed

• Improved queue compatibility testing in dpctl.tensor's implementation module #900.
• Added automatic measurement of array-API conformance test suite in CI #901.
• Improved performance of array metadata transfer from host to device #912.
• Used os.add_dll_directory on Windows to ensure that DPCTLSyclInterface library can be found #918.
• Refactored dpctl.tensor's implementation module #941 to streamline adding new functionality. Streamlined dpctl::tensor::usm_ndarray class implementation.
• Added debugging messaging in case when DPCTLDynamicLib::getSymbol encounters errors #956.
• Updated code base according to changes in DPC++ compiler #952, #957, #958.
• Changed dpctl to use pybind11 2.10.1 #967.
• Extended dpctl.tensor.full to accept 0d and higher dimensional arrays for fill-value parameter #982 and #995.

Fixed

• Improved SyclDevice constructor error message #893.
• Fixed issue gh-890 about dpctl.tensor.reshape function #915.
• Fixed unexpected UnboundLocalError exception in #922.
• Fixed bugs in dpctl.tensor.arange in #945.
• Fixed issue with type inferencing in dpctl.tensor.asarray in #949.
• Added missing docstrings for dpctl.SyclDevice properties #964.

[0.13.0] - 07/28/2022

Added

• Implemented and deployed dedicated kernels for copying with casting #781, used in __setitem__, implementaion of asarray, dpctl.tensor.copy functions.

• Implemented dedicated copying kernel for dpctl.tensor.reshape function #810, added support for copy keyword #807.

• Implemented dedicated kernel to copy with casting from numpy.ndarray into dpctl.tensor.usm_ndarray #817.

• Implemented dpctl.tensor.permute_dims function from array-API #787.

• Implemented dpctl.tensor.expand_dims function from array-API #788.

• Implemented dpctl.tensor.squeeze function from array-API #790.

• Implemented dpctl.tensor.broadcast_to function from array-API #791.

• Implemented dpctl.tensor.broadcast_arrays function from array-API #798.

• Implemented dpctl.tensor.flip function from array-API #801.

• Implemented dpctl.tensor.usm_ndarray.mT property per array-API #805.

• Implemented dpctl.tensor.roll function from array-API #809.

• Implemented dpctl.tensor.arange function from array-API #814.

• Implemented dpctl.tensor.zeros function from array-API #816.

• Implemented dpctl.tensor.zeros function from array-API #816.

• Implemented dpctl.tensor.ones, dpctl.tensor.full, dpctl.tensor.empty_like, dpctl.tensor.zeros_like, dpctl.tensor.ones_like, dpctl.tensor.full_like functions from array-API #822.

• Implemented DPCTLQueue_Memset function in SyclInterface library #812, and exposed it for dpctl.memory.MemoryUSM* classes #815.

• Implemented dpctl.utils.get_coerced_usm_type to deduced usm type of the output array from types of input arrays in compute-follows-data execution model #797.

• Added dpctl.SyclDevice.profiling_timer_resolution property #825.

• Added dpctl.SyclDevice.platform and dpctl.SyclPlatform.default_context properties #827.

• Provided pybind11 example for functions working on dpctl.tensor.usm_ndarray container applying oneMKL functions #780, #793, #819. The example was expanded to demonstrate implementing iterative linear solvers (Chebyshev solver, and Conjugate-Gradient solver) by asynchronously submitting individual SYCL kernels from Python #821, #833, #838.

• Wrote manual page about working with dpctl.SyclQueue #829.

• Added cmake scripts to dpctl package layout and a way to query the location #853.

• Implemented dpctl.tensor.concat function from array-API #867.

• Implemented dpctl.tensor.stack function from array-API #872.

Changed

• Enhanced coverage collection for SyclInterface library by also collecting it during pytest run and combining traces with those collected during C-test run #818. This change also allows to not rebuild SyclInterface library when building C-test executable.
• Exported keep_args_alive utility in dpctl4pybind11.hpp header #820. The utility uses sycl::handler::host_task to keep given Python arguments alive until eac sycl::event from the given vector of events is complete. The host task is scheduled on the SYCL queue provided as the first argument.
• Changed the size of struct underlying dpctl.SyclEvent to avoid storing Python object previously used to keep kernel arguments scheduled with dpctl.SyclQueue.submit #823.
• Fixed docstring for dpctl.SyclTimer #824.
• Changed type of exceptions raised on failure to create dpctl.SyclDevice from ValueError to dpctl.SyclDeviceCreationError #826.
• Improved performance of pybind11 type casters #837.
• Changed implementation of dpctl.SyclProgram from using deprecated sycl::program to sycl::kernel_bundle #845.
• Removed deprecated device aspects, added new supported aspects #844.
• Updated vendored dlpack.h to version 0.7 #847.

Fixed

• Fixed dpctl.lsplatform() to work correctly when used from within Jupyter notebook #800.
• Fixed script to drive debug build #835 and fixed code to compile in debug mode #836.
• Fixed filter selector string produced in outputs of dpctl.lsplatform(verbosity=2) and dpctl.SyclDevice.print_device_info #866.
• Fixed issue with slicing reported in gh-870 in #871.

[0.12.0] - 03/01/2022

Added

• Properties added to MemoryUSM* objects. #647
• Added dpctl.tensor.asarray #646
• Implemented DLPack support for usm_ndarray #682
• Exported dpctl.tensor.Device class #708 #718
• Added testing of examples in CI #722
• Added user manuals to dpctl documentation #712 #773

Changed

• Folder dpctl-capi/ renamed to libsyclinterface/ in sources and documentation. #666 #768
• Added workflow to publish rendered documentation on PRs #673 #753 #726
• Synchronization functions and USM allocation functions release GIL #736 #766
• dpctl.SyclEvent destructor is made non-blocking #751

Fixed

• Fixed for issue in code of dpctl.tensor.usm_ndarray.T #653
• Fixed issue with dpctl.tensor.reshape's affect on contiguity flags of usm_ndarray #695
• Fixed handling of empty list by dpctl.tensor.asarray #694
• Fixed type inference with array of empty arrays in dpctl.tensor.asarray #697
• Fixed issue gh-698 with dpctl.tensr.asarray #709
• Fixed performance of item assignment from numpy array #724
• DPCTLDeviceMgr_GetNumDevices should not operate on rejected devices #737
• Fixed issue gh-729 for dpctl.tensor.reshape applied to 0-element usm_ndarray #756
• Fixed issue gh-728 with dpctl.tensor.astype #757
• Fixed type in memory overlapping test #770
• Fixed issue with operator.pos for dpctl.tensor.usm_ndarray #783
• Only call PyThread_Ensure from host_task if the main-thread interpreter is initialized and not finalizing #776 #778 #721

Full Changelog: https://github.com/IntelPython/dpctl/compare/0.11.4...0.12.0

[0.11.4] - 12/03/2021

Fixed

• Fix tests for nested context factories expecting for integration environment by @PokhodenkoSA in IntelPython#705

[0.11.3] - 11/30/2021

Fixed

• Set the last byte in allocated char array to zero [cherry picked from #650] #699

[0.11.2] - 11/29/2021

Added

• Extending dpctl.device_context with nested contexts #678

Fixed

• Fixed issue #649 about incorrect behavior of .T method on sliced arrays #653

[0.11.1] - 11/10/2021

Changed

• Replaced uses of clang compiler with icx executable #665

[0.11.0] - 11/01/2021

Added

• Use Python 3.9 in public CI #599
• Add a new C API utility function (DPCTLDeviceMgr_GetDeviceInfoStr) to return the device info as a C string object #620
• New Github workflow to build dpclt with nightly Intel llvm/sycl + drivers #621
• Always raise SubDeviceCreationError even when sub-device counts are zero #622
• Updated OpenCL interoprability code to fix build with Intel llvm/sycl bundle #625
• Enabled use of default platform context extension in SYCL compilers that implement this extension #627
• Implemented dpctl.utils.get_execution_queue(queue_seq) utility to help implementing "compute-follows data" convention for offload target #632 #631

Changed

• Replaced host_device device type with host in tests #616
• Rework the logic in dpctl.memory's copy_from_device method to work correctly with host device #618
• Use dpctl.device_type.host instead of dpctl.device_type.host_device #626
• Reinstate deprecated sycl::program and that was conditionally removed from open source DPC++ toolchain #633
• Use LoadLibraryExA instead of LoadLibraryA to mitigate a possible DLL injection issue when we load the Level zero DLL on windows #636
• Github coverage workflow is changed to use oneAPI 2021.3 instead of latest to work around broken profiling instrumentation in DPC++ 2021.4 #614
• Update build dependencies for NumPy #641
• Use "readelf" on SYCL's pi_level_zero library to find out and use the exact name of ze_loader.so in SyclInterface library #617

Removed

• Removed use of DPC++ features deprecated in 2021.4 and open source Intel llvm/sycl compiler #603

Fixed

• Suppress errant CMake log #610
• Fixes to compile dpctl using Intel llvm/sycl compiler #603
• Fix for the hang is to avoid passing nullptr argument to sycl::queue::prefetch #612
• Fixed the logic to return device count #623
• Enabled building of C extensions with dpctl by including header defining bool type for C compilers #604

[0.10.0] - 09/28/2021

Added

• Added methods bool, float, int, index, and complex to usm_ndarray #578
• Added data-API required special methods to usm_ndarray class, as well as to_numpy/from_numpy, astype, reshape functions #586
• Added methods to query dpctl.SyclDevice for size of global/local memory #589
• Added tests for constructors with invalid capsules #577
• Improved test coverage of dpctl.SyclQueue implementation #574
• Added a test to exercise API exported function (get_event_ref). #570
• Expanded tests in test_sycl_context to improve coverage #571
• Tweaks to test_sycl_event to improve coverage #567
• Improved coverage of dpctl.init file and other service functions #563
• Added test for repr and test for default argument to constructor #565
• Added some tests to involve capsule #564
• Added workflow for Public CI on Windows #534
• DPCTLQueue_Memcpy, _Prefetch, _Memadvise become asynchronous #557
• Added device aspect selector, dpctl.select_device_with_aspects #558
• Added test based on example from #583

Changed

• Parametrized tests for executing OpenCL kernels compiled from source in types of arguments #581
• Temporary disabled self-hosted CI jobs runner #559
• Changed static method SyclQueue._create_from_context_and_device #579
• Transitioned all Python API to use pytest over unittest, improved coverage in dpctl/memory #575
• Changed dpctl.SyclEvent.profiling_info_submit from method to a property #573
• Simplified arg parsing in SyclDevice constructor #572
• Used tag with alignment attribute set in README #562
• Moved sycl timer into dpctl.SyclTimer #555
• Used clang-format off, clang-format on to avoid include reordering in pybind11 example #588

Fixed

• Implemented a workaround for running conda-build using Klocwork #566
• Separated pipelines for Linux and Windows #582
• Fixed inconsistency in __sycl_usm_array_interface__ of usm_ndarray instance #584
• Fixed memory leak: Capsule deleters now free resources for renamed capsules too #568
• Fixed version test to allow for semantic versioning #569
• Improved coverage of _types.pxi #556
• Fixed UnboundLocalError when default queue could not be created #554

[0.9.0] - 08/25/2021

Added

• Improvements to logic for working with custom DPC++ toolchain #481
• Add SyclContext unit test cases #488
• Consolidate configurations of tools that support PEP 518 into pyproject.toml #486
• Added C-API hash function, used them in Python interface #491
• Add missing extra checks to ensure unwrapped pointer is not Null
• Add error messages to L0 program creation routine
• Improve test coverage for dpctl_sycl_queue_interface #492
• Use pytest.warns in test_lsplatform3 #495
• Added test class to test DRef=nullptr case #496
• Extend parameterized test in test_sycl_queue_interface #497
• Use Memcpy, memadvise in tests
• Expanded types tests by TestQueueSubmitRange
• Added a test that retrieved DPCPP compiled kernel and submits them via DPCTLQueue_SubmitRange #499 , DPCTLEvent_GetCommandExecutionStatus #516, , DPCTLEvent_GetWaitList #510 functions
• Propagate compile flags #512
• Add conda package CI pipeline on GitHub Actions #515
• Run tests on GPU #518
• Add 3 wrapper func for event::get_profiling_info #519
• Changes to build_backend.py to enable sycl-compiler-prefix on Windows
• dtype keyword of usm_ndarray now supports np.double and other types #526
• Implemented DPCTLQueue_SubmitBarrier, DPCTLQueue_SubmitBarrierForEvents, SyclQueue.submit_barrier #524
• Added C-API DPCTLQueue_HasEnableProfiling
• Added Python API SyclQueue.has_enable_profiling
• Use public for data owning class definitions
• Queue has enable profiling #531
• Use public for data owning class definitions #533
• Added logic to verify that all bits of property integer were recognized and used #494
• Added support for some properties/methods of underluing device
• A test for properties, method of q mirroring that of device
• Conda build scripts should build wheels in the same setup invocation as install #538
• Added install_requires keyword to setup call
• Added requirements.txt files in dpctl/ and in dpctl/docs #540
• Improved C-API for dpctl Cython classes, added example of using them in Pybind11 extension. #550
• dpctl.SyclEvent acquired ability to get command status and get profiling information. #553

Changed

• Moved DPCLSyclInterface library from MANIFEST.in #482
• Refactored tests
• Use dpcpp compiler package for Linux #514
• Update conda-package.yml
• Static methods _init_helper made into functions and removed from PXD files #532

Removed

• Remove imports from future #485

Fixed

• Fix sub devices #479
• Fix addressof_ref function in SyclContext #488
• Follow DPCTLDevice_CreateFromSelector which passes the check #487
• Fix a typo in the pytest configuration #490
• Fixed dbg_build.sh script for Linux to use L0
• Reuse IntelSycl_LIBRARY_DIR variable in cmake
• CXX, dpcpp used on Windows too
• Update conda-recipe/bld.bat
• Change to SyclQueue.repr to reflect properties #531
• Static methods _init_helper made into functions and removed from PXD files #532
• Fixed typo in pip installation instruction #536
• Fixed dpctl_config.h, added dpctl_service.h, .cpp #539
• Fixed __sycl_usm_array_interface__ output for 0d arrays #547

[0.8.0] - 05/26/2021

Added

• Implemented support for constructing MemoryUSM* from object with sycl_usm_array_interface when array-info is not contiguous #400
• Print the backend as part of SyclDevice.print_device_info function #409
• Added dpctl/tensor/_usmarray submodule #427
• Added arg checking to functions in dpctl_sycl_usm_interface.cpp #430
• A static method of _Memory to create from external allocation #430
• Added usm_ndarray accessors #435
• Added Device class representing Data-API notion of device #440
• Added free Python function as_usm_memory(obj) #443 and associated unit tests #449
• Dependency for numpy 1.17 #445
• Add a flag to make doxygen HTML generation optional #450
• Added a feature to get the filter string for a device from Python using the new dpctl.SyclDevice.get_filter_string method. Also added the corresponding DPCTLDeviceMgr_GetPositionInDevices(DRef, device_mask) C API function #453
• New options to setup.py to specify which dpcpp compiler to use, if L0 program creation is to be supported, and to generate code coverage #426
• Github action to check Python code quality #422
• Github action to auto-publish Sphinx docs for master #446
• Github action to generate coverage report and publish to coveralls.io #459

Changed

• Rename dpctl.dptensor to dpctl.tensor #407
• Changed repr for Memory objects #442
• Used dpctl.SyclQueue instead of manager and get current queue in tests for SyclProgram #448

Fixed

• Issue #189 dpctl.memory.MemoryUSMShared(np.int64(16)) should work #392
• Use size_t instead of Py_ssize_t to fit device USM pointer #405
• Various code quality issues identified by flake8 (#417, #419, #420, #422)
• Fixed issues in slicing and array construction #441
• Fixed an issue #447 where dpctl.get_devices does not return devices in the same order as sycl::device::get_devices #451
• L0 program creation support on Windows #319

Removed

• Removing public keyword to get_current_queue Cython declaration #437

[0.7.0] - 05/03/2021

Added

• Complete support for sycl::ONEAPI::filter_selector in dpctl. , and sycl::platform #298 creation using opaque pointers.
• A DPCTLDeviceMgr module in C API that caches a default context for root devices #277.
• DPCTLSyclBackendType and DPCTLSyclDeviceType have a new member ALL #287.
• C API now provides helper functions to convert between dpctl and SYCL enum values #296.
• Macros to help create opaque vector classes for opaque SYCL types #297. , SyclContext #334, SyclPlatform (#336, #298), SyclQueue #323 have constructors that recognize filter selectors and closely follow DPC++ interface.
• Add API to get a PyCapsule from SyclQueue, SyclContext instances #350.
• Added get_queue_ref_from_ptr_and_syclobj(ptr, syclobj) that creates DPCTLSyclQueueRef from a USM pointer and Python object syclobj from __sycl_usm_array_interface__ #380.
• Support for SYCL sub-devices, including sub-device creation, queue, and context creation using sub-devices #343.
• SyclDevice.parent_device property to indicate if an instance has a parent device #366.
• Several new getter functions for device info descriptors to device interface (#300, #335, #318, #315, #308).
• Support for SYCL device aspects #307.
• Properties for every sycl::device info and aspect that we support in SyclDevice #324.
• Support handling async errors inside SylQueue instances #346.
• get_backend, get_platform, get_device_type to Python SyclDevice class #300
• A _sycl_device_factory.pyx module providing SyclDevice constructors using standard sycl::device_selector classes (previously in _sycl_device.pyx) and a new get_devices #277 function to enumerate all devices.
• _sycl_device_factory.pyx implements get_num_devices and has_*_device(s) functions #320.
• Enable Python coverage in CI for Linux #369.
• Use public keyword in _sycl_*.pxd to generate header files allowing non-Cython centric native extensions to work with dpctl's Python objects #218.
• Documentation improvements #341.

Changed

• Rename dpCtl to dpctl in all comments, license headers, and docs. #342
• dpctl.memory.MemoryUSM* constructors now use dpctl.SyclQueue() instead of dpctl.get_current_queue() when the queue keyword argument is None (default) #382.
• dpctl.set_default_queue has been renamed to dpctl.set_global_queue() #323.
• Changed dpctl.dump to dpctl.lsplatform #336.
• Various SyclDevice methods related to querying sycl::info::device were converted to properties #324.
• Various C API functions names were changed.

Fixed

• Possible crashes when a SYCL platform is not available #349.
• Fix tests which fail if GPU is not available (only CPU is available) #359.
• Fix breaking C API tests #358.
• Bandit warning about "subprocess.check_call(shell=True)" for Windows #306.

Removed

• Removed get_num_platforms, has_cpu_queues, has_gpu_queues, get_num_queues, has_sycl_platforms #320.

[0.6.1] - 2021-03-01

Fixed

• Do not use POP_FRONT in FindDPCPP.cmake so that we can use a cmake version older that 3.15.

[0.6.0] - 2021-03-01

Added

• Documentation improvements.
• Cmake improvements and Coverage for C API, Cython and Python.
• Added support for Level Zero devices and queues.
• Added support for SYCL standard device_selector classes.
• SyclDevice instances can now be constructed using filter selector strings.
• Code of conduct.
• Building wheels.
• Queue manager improvements.
• Adding __array_function__ so that Numpy calls with dparrays work.
• Using clang-format for C/C++ code formatting.
• Using pytest for running tests.
• Add python and cython file coverage.
• Using Bandit for finding common security issues in Python code.
• Add instructions about file headers formats.

Changed

• Changed compiler name usage from clang++ to dpcpp.
• Reformat backend.pxd to be closer to black style.

Fixed

• Remove cython from install_requires. It allows use dpCtl in numba extensions.
• Incorrect import in example.
• Consistency of file headers.
• Klocwork issues.

[0.5.0] - 2020-12-17

Added

• _Memory.get_pointer_type static method which returns kind of USM pointer.
• Utility functions to transform string to device type and back.
• New dpctl.dptensor.numpy_usm_shared module containing USM array. USM array extends NumPy ndarray.
• A lot of new examples. Including examples of building Cython extensions with DPC++ compiler that interoperate with dpCtl.
• Mechanism for registering a callback function to look and see if the object supports USM.

Changed

• setup.py builds C++ backend for develop and install commands.
• Building wheels.
• Use DPC++ runtime from package dpcpp_cpp_rt.
• All usage of DPPL in C-API functions was changed to DPCTL, e.g., DPPLQueueMgr_GetCurrentQueue to DPCTLQueueMgr_GetCurrentQueue.
• Renamed the C-API directory is now called dpctl-capi instead of backends.
• Refactoring the dpctl-capi functions to prepare for changes to add Level Zero program creation.
• SyclProgram and SyclKernel classes were moved out of dpctl into the dpctl.program sub-module.

Fixed

• Klockwork static code analysis warnings.

[0.4.0] - 2020-11-04

Added

• Device descriptors "max_compute_units", "max_work_item_dimensions", "max_work_item_sizes", "max_work_group_size", "max_num_sub_groups" and "aspects" for int64 atomics inside dpctl C API and inside the dpctl.SyclDevice class.
• MemoryUSM* classes moved to dpctl.memory module, added support for aligned allocation, added support for prefetch and mem_advise (sychronous) methods, implemented copy_to_host, copy_from_host and copy_from_device methods, pickling support, and zero-copy interoperability with Python objects which implement __sycl_usm_array_inerface__ protocol.
• Helper scripts to generate API documentation for both C API and Python.

Fixed

• Compiler warnings when building libDPPLSyclInterface and the Cython extensions.

Removed

• The Legacy OpenCL interface.

[0.3.8] - 2020-10-08

Changed

• How the initial active queue is populated inside DPPLQueueMgr.
• dpctl.SyclQueueManager only reports the number of non-host platform.
• dpctl.SyclQueueManager now raises an exception if DPCTL C API returns a nullptr instead of a valid Sycl queue.

Fixed

• Several crashes in cases where an OpenCL or Level Zero platform is not available.
• Fix failing platform test case. #116
• Properly skip tests when no OpenCL devices are available.
• Add skip tests to test_sycl_usm.py
• Fix Gtests configuration.

[0.3.7] - 2020-10-08

Fixed

• A crash on Windows due a Level Zero driver problem. Each device was getting enumerated twice. To handle the issue, we added a temporary fix to use only first device for each device type and backend #118.

[0.3.6] - 2020-10-06

Added

• Changelog was added for dpctl.

Fixed

• Windows build was fixed.

[0.3.5] - 2020-10-06

Added

• Add a helper function to all Python SyclXXX classes to get the address of the base C API pointer as a long.

Changed

• Rename PyDPPL to dpCtl in comments (function name renaming to come later)

Fixed

• Fix bugs highlighted by tools.
• Various code clean ups.

[0.3.4] - 2020-10-05

Added

• Dump functions were enhanced to print back-end information.
• dpctl gained support for unint_8 and unsigned long data types.
• oneAPI Beta 10 tool chain support was added.

Changed

• dpctl is now aware of DPC++ Sycl PI back-ends. The functionality is now exposed via the context interface.
• C API's queue manager was refactored to require back-end.
• dpct's device_context now requires back-end, device-type, and device-id to be provided in a string format, e.g. opencl:gpu:0.

Fixed

• Fixed some important bugs found by static analysis.

[0.3.3] - 2020-10-02

Added

• Add dpctl.get_curent_device_type().

[0.3.2] - 2020-09-29

Changed

• Set _cpu_device and _gpu_device to None by default.

[0.3.1] - 2020-09-28

Added

• Add get include and include headers.

Changed

• DPPL shared objects are installed into dpctl.

Fixed

• Refactor unit tests.

[0.3.0] - 2020-09-23

Added

• Adds C and Cython API for portions of Sycl queue, device, context interfaces.
• Implementing USM memory management.

Changed

• Refactored API to expose a minimal sycl::queue interface.
• Modify cpu_queues, gpu_queues and active_queues to functions.
• Change static vectors to static pointers to verctors. It disables call for destructors. Destructors are also call in undefined order.
• Rename package PyDPPL to dpCtl.
• Use dpcpp.exe on Windows instead of dpcpp-cl.exe deleted in oneAPI beta08.

Fixed

• Correct use ERRORLEVEL in conda scripts for Windows.
• Fix using dppl.has_sycl_platforms() and dppl.has_gpu_queues() functions in skipIf