Intel® oneAPI HPC Toolkit 2023 Release Notes

Where to Find the Release

https://developer.intel.com/oneapi

Also reference the Intel® oneAPI Base Toolkit Release Notes for additional information.

System Requirements

Please see the Intel® oneAPI HPC Toolkit System Requirements.

Major Features Supported

New in 2023.1.0

Toolkit Level Updates

• Intel oneAPI HPC Toolkit for macOS on x86 is now deprecated and will be discontinued in the 2024.0 release.  Several Intel-led open source developer tool projects will continue supporting macOS on Apple Silicon including oneAPI Threading Building Blocks (oneTBB) and Intel® Implicit SPMD Program Compiler and we welcome the opportunity to work with contributors to expand support to additional tools in the future.
• Intel® Cluster Checker is now deprecated and will be discontinued in a future release.

Intel® oneAPI DPC++/C++ Compiler 2023.1.0

• Intel® oneAPI DPC++/C++ Compiler adds auto cpu_dispatch to efficiently dispatch to specific intrinsics at runtime, kernel properties for SYCL for developers to write efficient, high-performance code, and enhances SYCL* 2020 conformance to improve developer productivity and boost CPU and GPU offload performance. Bfloat16 is now a full feature (out of the experimental namespace) in the compiler to accelerate machine learning (deep learning training, in particular) algorithms on the latest platforms.  
• The compiler enhances OpenMP* 5.0 and 5.1 compliance, adds new standard features, and improves performance.
• Enhanced developer efficiency with better compiler error messaging and error handling for SYCL and OpenMP code.

Intel® C++ Compiler Classic 2021.9.0

• The Intel® C++ Compiler Classic has been updated to include recent versions of 3rd party components, which include functional and security updates.

Intel® Fortran Compiler 2023.1.0

• Intel® Fortran Compiler enhanced OpenMP 5.0, 5.1 compliance, and improved performance. 
• Other bug fixes, stability improvements & security enhancements. 

Intel® Fortran Compiler Classic 2021.9.0

• The Intel® Fortran Compiler Classic has been updated to include recent versions of 3rd party components, which include functional and security updates.

Intel® Cluster Checker 2021.7.2

• Intel® Cluster Checker is now deprecated and will be discontinued in the 2023.2 release

Intel® MPI Library 2021.9.0

• Intel® MPI Library improves performance for collectives using GPU buffers.
• Intel® MPI Library improves performance through default process pinning on CPUs with E-cores and P-cores.
• Intel® MPI Library resolves performance regressions and improves stability.

Intel® Inspector 2023.1.0

• Intel® Inspector now can be started from Microsoft* Visual Studio* 2022. 
• Intel® Inspector has been updated to include recent versions of 3rd party components, which include functional and security updates.

Intel® Trace Analyzer and Collector 2021.9.0

• Intel® Trace Analyzer and Collector has been updated to include recent versions of 3rd party components, which include functional and security updates.

New in 2023.0.0

Toolkit Level Updates

• The oneAPI 2023 tools empower developers to maximize the advanced capabilities of4th Gen Intel® Xeon® Scalable Processors (formerly codenamed Sapphire Rapids) with Intel® Advanced Matrix Extensions (Intel® AMX), Quick assist Technology (QAT), Intel® AVX-512, bfloat16, and more as well as Intel® Data Center GPU Max Series (formerly codenamed Ponte Vecchio) with datatype flexibility, Intel® Xe Matrix Extensions (Intel® XMX), vector engine, XE Link, and other features.
• Extended Fortran and OpenMP support  – Ensure fast development of Fortran standards compliant applications using Intel® Fortran Compiler which provides full Fortran language standards support up through 2018 on CPU, adds DO CONCURRENT GPU offload, and expands OpenMP 5.x and OpenMP offload support.
• Intel® MPI library provides initial suppport for the Intel® Data Center GPU MAX Series (formerly code named Ponte Vecchio) utilizing XE Link for direct GPU to GPU communications.  It also speeds cluster application performance by utlizing the new embeddd Data Streaming Accelerator in 4th Generation Xeon Scalable Processors (formerly codenamed Sapphire Rapids).

Intel® oneAPI DPC++/C++ Compiler 2023.0.0

• Intel® oneAPI DPC++/C++ Compiler improves accelerated computing with more SYCL* 2020 features to boost CPU and GPU offload performance on the latest platforms.
• Intel® oneAPI DPC++/C++ Compiler adds support for 4th Gen Intel® Xeon® Scalable Processor (formerly Sapphire Rapids), and Intel® Data Center GPU MAX Series (formerly Ponte Vecchio).
• The compiler enhances OpenMP* 5.x compliance and improves performance.

Intel® C++ Compiler Classic 2021.8.0

• The Intel® C++ Compiler Classic has been updated to include recent versions of 3rd party components, which include functional and security updates.

Intel® Fortran Compiler 2023.0.0

• Intel Fortran Compiler, based on modern LLVM technology, now has up to Fortran 2018 full language standards support, including Coarrays eliminating the need for external APIs such as MPI or OpenMP. To easily express offload parallelism the compiler adds DO CONCURRENT GPU offload support.
• Intel® Fortran Compiler adds support for 4th Gen Intel® Xeon® Scalable Processor (formerly Sapphire Rapids), and Intel® Data Center GPU MAX Series (formerly Ponte Vecchio).
• Intel Fortran Compiler enhances OpenMP 5.0, 5.1 compliance, focusing much of that on offloading, and improved performance.
• Developers are now able to source-level debug optimized code.

Intel® Fortran Compiler Classic 2021.8.0

• The Intel® Fortran Compiler Classic has been updated to include recent versions of 3rd party components, which include functional and security updates.

Intel® Cluster Checker 2021.7.2

• Intel® Cluster Checker has been updated with stability improvements.
• Intel® Cluster Checker is now deprecated and will be discontinued in a future release. Stability improvements will continue but no additional functionality or hardware support will be developed.

Intel® MPI Library 2021.8.0

• Intel® MPI library provides initial suppport for the Intel® Data Center GPU MAX Series (formerly code named Ponte Vecchio) utilizing XE Link for direct GPU to GPU communications.
• Intel® MPI Library speeds cluster application performance by utlizing the new embeddd Data Streaming Accelerator in 4th Generation Xeon Scalable Processors (formerly codenamed Sapphire Rapids).

Intel® Inspector 2023.0.0

• Support for Intel® Data Center GPU MAX Series (formerly code named Ponte Vecchio).

Intel® Trace Analyzer and Collector 2021.8.0

• CVE and bug fixes.

Installation Instructions

Please see the Installation Guide for oneAPI Toolkits.

Known Issues

• When using Intel® oneAPI DPC++/C++ Compiler on a Linux machine, users may run into an issue if the highest version of GNU gcc detected doesn't have the equivalent g++ package installed. More details on the error and workarounds can be found here.
• For users who have a supported version of Visual Studio* installed, the installation of IDE integration can be very slow. It may take 30+ minutes just for the IDE integrations installation sometimes. Please be extra patient and it will be eventually installed. 
• Installing oneAPI 2022.1, then installing oneAPI 2022.2, and subsequently uninstalling oneAPI 2022.1 will lead to gdb_oneapi.zip and com.intel.samples.update-1.0.0-SNAPSHOT.zip plugins being unable to be found in the <installdir>/etc/eclipse directory.  Workarounds:
   

  1. Take the plugins from their original locations:

     <installdir>/debugger/latest/ide_support/eclipse/gdb_oneapi.zip
     <installdir>/dev-utilities/latest/ide-support/eclipse/com.intel.samples.update-1.0.0-SNAPSHOT.zip

     where <installdir> is /opt/intel/oneapi by default, if the directory was changed during installation, please use it here

  2. Manually restore the symlinks:

     ONEAPI_INSTALL_DIR=/opt/intel/oneapi    # if the directory was changed during installation, please use it here
     ln -sT $ONEAPI_INSTALL_DIR/dev-utilities/latest/ide-support/eclipse/com.intel.samples.update-1.0.0-SNAPSHOT.zip $ONEAPI_INSTALL_DIR/etc/eclipse/com.intel.samples.update-1.0.0-SNAPSHOT.zip
     ln -sT $ONEAPI_INSTALL_DIR/debugger/latest/ide_support/eclipse/gdb_oneapi.zip $ONEAPI_INSTALL_DIR/etc/eclipse/gdb_oneapi.zip

  3. Repair oneAPI 2022.2 using the Installer app: <installdir>/oneapi/installer/installer

• Latest GPU driver available at https://dgpu-docs.intel.com/ introduces an Ahead-Of-Time (AOT) build issue for OpenMP offload applications running on Gen9 iGPU when using oneAPI compilers. A fix for this issue will be available in the upcoming driver release. 
  For assistance with downgrading to a version of driver which does not have this issue, contact us via Graphics - Intel Communities.
• Users who installed 2021.1 packages for Linux* via package managers YUM/DNF or Zypper may encounter errors during the upgrade process.  Please see https://www.intel.com/content/www/us/en/developer/articles/news/yum-dnf-apt-zypper-packages-oneapi-2021-1-gold.html for details.
• If you have chosen to download the Get Started Guide to use offline, viewing it in Chrome, may cause the text to disappear when the browser window is resized. To fix this problem, resize your browser window again, or use a different browser.
• Diagnostics Utility for Intel® oneAPI Toolkits:
  • Diagnostics utility supports to run executing checkers only in .sh format.
  • Diagnostics utility may not find oneAPI system check if they installed in some custom directory.
  • Diagnostics utility doesn't run oneAPI system checks with root privileges.
  • If you would like to run all checks from a single checker and some check has dependency checks from other checker (checks that must be run before the desired check):
    • By the --single_checker option - the tool will not be able to find the dependencies and check will not be run.
    • By the --config and --filter options - the tool will not be able to find the dependencies and check will not be run. Workaround: Add dependency checks to run list.
    • The oneAPI products detection check will not find products version, if oneAPI installer cache was removed.

Deprecated/Removed Features

• Support for Intel® Xeon Phi™ Processor x200 “Knights Landing (KNL)” and Intel® Xeon Phi™ Processors “Knights Mill (KNM)” is deprecated and will be removed in a future release.  Intel® Xeon Phi™ customers should continue to use compilers, libraries, and tools from the Intel® Parallel Studio XE 2020 and older PSXE releases, or compilers from the Intel® oneAPI Base Toolkit and Intel® oneAPI HPC Toolkit versions 2021.2 or 2021.1.
• Support for Microsoft Visual Studio 2017* is deprecated in this release and will be removed in a future version.
• Intel® C++ Compiler Classic (icc) is deprecated and will be removed in a oneAPI release in the second half of 2023. Intel recommends that customers transition now to using the LLVM-based Intel® oneAPI DPC++/C++ Compiler (icx) for continued Windows* and Linux* support, new language support, new language features, and optimizations. Note that starting with release 2021.7, macOS* support is limited to Mac* computers with Intel® Processors. For more information on icx, see the Intel® oneAPI DPC++/C++ Compiler Developer Guide and Reference.

Tools Included in Intel® oneAPI HPC Toolkit

• Intel® oneAPI DPC++/C++ Compiler Pro - Release Notes
• Intel® Fortran Compiler & Intel® Fortran Compiler Classic - Release Notes
• Intel® MPI Library - Release Notes
• Intel® Inspector - Release Notes
• Intel® Trace Analyzer and Collector - Release Notes
• Intel® Cluster Checker - Release Notes

Previous oneAPI Releases

• Intel® oneAPI HPC Toolkit 2022
  • Release Notes
  • System Requirements
• Intel® oneAPI HPC Toolkit 2021
  • Release Notes
  • System Requirements

Notices and Disclaimers

Intel technologies may require enabled hardware, software or service activation.

No product or component can be absolutely secure.

Your costs and results may vary.

© Intel Corporation. Intel, the Intel logo, and other Intel marks are trademarks of Intel Corporation or its subsidiaries. Other names and brands may be claimed as the property of others.

No license (express or implied, by estoppel or otherwise) to any intellectual property rights is granted by this document.

The products described may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request.

Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.