v0.14.2

Added

• Added dpctl.SyclDevice.partition_max_sub_devices property #1005
• Added dpctl.program.SyclKernel.max_sub_group_size property #1028
• Implemented printing of usm_ndarray #1013, #1043, #1060
• Implemented support for advanced indexing for dpctl.tensor.usm_ndarray #1095, #1097, #1099, #1101
• Implemented support for platform listing in dpctl.__main__ script #1014
• Improved performance of dpctl.tensor.asnumpy #1026
• Added UsmNDArray_Make* C-API for constructing dpctl.tensor.usm_ndarray from native allocations #1050, #1067
• Added support for dpctl.SyclDevice.native_vector_width_* device descriptors #1075
• Added dpctl::tensor::usm_ndarray::get_shape_vector and dpctl::tensor::usm_ndarray::get_strides_vector methods #1090

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 #1028

• usm_ndarrayis made writable by default #1012, and writable flag is now checked by __setitem__.

• Added convenience signature for C++ utility function in "dpctl4pybind11.hpp" #1016

• Improved error reported when attempting to submit kernel that uses a data-type unsupported by target device #1018, #1040

• Updated C++ code to require DPC++ 2023.0.0 or newer #1028, #1066

• The dpctl.tensor.Device class supports print_device_info method #1029, equality comparison, and hashing #1048

• Updated version of pybind11 used to 2.10.2 #1031

• Improved internal utility responsible for reduction of iteration space dimensionality #1044, #1054

• Changed return type of DCPCTLUSM_GetPointerType function in SyclInterface library #1061, #1065

• Updated supported version of DLPack to 0.8 #1073

• Implemented queue cache per context/device pair and deployed it in dpctl.memory, dpctl.tensor.from_dlpack and dpctl.tensor array creation functions #1076, #1079

• Maintainance, CI work: #1001, #1009, #1011, #1024, #1030, #1032, #1035, #1037, #1039, #1041, #1045, #1047, #1055, #1057, #1059, #1068, #1070, #1074,#1077, #1078, #1081, #1084, #1085, #1088, #1086, #1092, #1093

Fixed

• Fixed error gh-998 in forming Python exception, #999.
• A small memory leak fixed, #1000
• Improved dtype support in dpctl.tensor.full, PR #1002
• Added missing header file #1008 fixing gh-1007
• Fixed a typo in device-specific dtype mapping #1015
• Fixed default device integer type to align with NumPy's behavior on Windows #1017
• Fixed unexpected overflow in dpctl.tensor.linspace when one of the parameters is the largest floating point value #1034
• Constructors dpctl.tensor.empty, dpctl.tensor.zeros, and usm_ndarray constructor itself no longer allow to create array with data-types not supported by targeted device #1042
• Fixed parameter validation in dpctl.SyclQueue constructor #1052
• Fixed usm_type of the resulting array in dpctl.tensor.tril and dpctl.tensor.triu functions #1062
• Used DPC++ configuration files to ensure correct use of conda compiler toolchain on Linux #1072
• Fixed issue with empty argument of dpctl.tensor.meshgrid function #1080
• Fixed linking problem on Windows enabling dpctl to be functional on Windows for devices not supporting some data types #1083

Full Changelog: 0.14.0...0.14.2

v0.14.0

[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.

v0.13.0

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.

New contributor: @npolina4 contributed #867, #872 and reported #870

v0.12.0

What's changed in 0.12.0

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: 0.11.4...0.12.0

0.11.4

What's Changed

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

Full Changelog: 0.11.3...0.11.4

0.11.3

Fixed

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

Full Changelog: 0.11.2...0.11.3

0.11.2

Added

• Extending dpctl.device_context with nested contexts (#678)

Fixed

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

Full Changelog: 0.11.1...0.11.2

0.11.1

Changed

• Replaced uses of clang compiler with icx executable (#665)

0.11.0

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)
• Improved code coverage (#619) (#542) (#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)

0.11.0rc2

What's Changed

• Added new example of Python object exposing sycl_usm_array_interface by @oleksandr-pavlyk in #596
• Cleanup/c extensions with dpctl by @oleksandr-pavlyk in #604
• Silly typo behind slow copy by @oleksandr-pavlyk in #606
• Use Python 3.9 [in public CI] by @PokhodenkoSA in #599
• Suppress errant CMake log. by @diptorupd in #610
• Avoid passing nullptr to sycl::queue::prefetch to avoid buggy hang by @oleksandr-pavlyk in #612
• Moved repeated status message outside of if/else statement by @oleksandr-pavlyk in #613
• Coverage workflow is to use oneAPI 2021.3 by @oleksandr-pavlyk in #614
• replace host_device device type with host in test by @oleksandr-pavlyk in #616
• Use readelf on pi_level_zero library to find exact name of ze_loader by @oleksandr-pavlyk in #617
• Remove use of DPC++ features deprecated in 2021.4 and open source intel/llvm compiler by @oleksandr-pavlyk in #603
• Rework the logic in memory's copy_from_device by @oleksandr-pavlyk in #618
• Added tests to cover red lines in coverage report by @oleksandr-pavlyk in #619
• Add a new utility function to return the device info as a C string object. by @diptorupd in #620
• Always raise SubDeviceCreationError even when counts are zero by @oleksandr-pavlyk in #622
• Add a workflow to install nightly intel/llvm + drivers by @oleksandr-pavlyk in #621
• DPCTLSyclInterface should avoid functions that print to std::cout by @oleksandr-pavlyk in #542
• Correct the logic to return device count. by @diptorupd in #623
• dpctl.device_type.host_device -> dpctl.device_type.host by @oleksandr-pavlyk in #626
• Update opencl interoprability code to fix build with open source llvm/sycl bundle by @oleksandr-pavlyk in #625
• Enable use of default platform context extension by @oleksandr-pavlyk in #627
• [WIP] Rebuild by @Vyacheslav-Smirnov in #605
• test_get_dpcppversion relaxed by @oleksandr-pavlyk in #631
• reinstate deprecated sycl::program and that was conditionally removed from open source DPC++ toolchain by @oleksandr-pavlyk in #633
• Closes #629 by @oleksandr-pavlyk in #632
• Add triggers to CI by @1e-to in #634
• Undid restrictions for on: push triggers by @oleksandr-pavlyk in #637
• Change the way we load level zero DLL on windows. by @diptorupd in #636
• Update build deps for numpy by @xaleryb in #641
• master-> gold/2021 by @xaleryb in #642

Full Changelog: 0.10.0...0.11.0rc2