Intel® HPC Toolkit Release Notes

ID 829871
Updated 12/12/2024
Version
Public

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The Intel® HPC Toolkit (HPC Kit) delivers what developers need to build, analyze, optimize, and scale HPC applications with the latest techniques in vectorization, multithreading, multi-node parallelization, and memory optimization.

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® HPC Toolkit System Requirements.

Intel® HPC Toolkit Major Component Versions

The following table contains major versions of components in the latest Intel HPC Toolkit 2025.0.1. 

Component Version
Intel oneAPI DPC++/C++ Compiler 2025.0.4
Intel® Fortran Compiler 2025.0
Intel® MPI Library 2021.14.1

New in Intel® HPC Toolkit 2025.0.1

This patch release contains patch release updates for the following components, including bug fixes and quality improvements:

  • Intel® oneAPI DPC++ Compiler 2025.0.4
  • Intel® MPI Library 2021.14.1

New in Intel® HPC Toolkit 2025.0

Toolkit Level Updates

  • Get the most from the latest hardware with new Intel developer tools support for Intel® Xeon® 6 Processors with Performance-Cores (P-Cores), formerly codenamed Granite Rapids and Intel® Core™ Ultra processors (Series 2), formerly codenamed Lunar Lake.
  • The Intel® oneAPI HPC Toolkit (HPC Kit) now offers two convenient subset bundles offering smaller downloads for specific developer use cases. Intel® C++ Essentials is for C++ developers is focused on compiling, debugging, and utilizing the most widely used Base Kit performance libraries for Intel CPUs and GPUs. Intel® Fortran Essentials is for Fortran developers focused on compiling, debugging, and utilizing the most widely used HPC Kit performance libraries for Intel CPUs and GPUs.
  • The Intel® Fortran Compiler adds new F2023 Standard features, including the AT Edit Descriptor for cleaner output, enhanced string parsing with SPLIT and TOKENIZE functions, and improved numerical precision with upgraded IEEE_ARITHMETIC capabilities, all designed to optimize your coding efficiency and application performance.
  • Maximize your Fortran application's parallel processing capabilities with our latest Intel® Fortran Compiler release, featuring OpenMP 6.0 enhancements such as conditional TEAMS construct execution with the new IF clause, flexible TARGET constructs with DEVICE_TYPE clauses, and enhanced device targeting and task affinity control with OpenMP 5.1 updates, all designed to give developers greater control and efficiency in high-performance computing environments.
  • Unlock advanced parallelism in your Fortran applications with Intel® Fortran compiler's latest enhancements, now supporting arrays of coarrays and the ability to create allocatable arrays with coarray components, offering developers dynamic, high-performance data structures for sophisticated coarray programming.
  • Achieve high scale out and scale up performance on Intel® Xeon® 6 Processors with Intel® MPI Library including P-core pinning for optimized balancing of asymmetric CPU topologies.
  • Intel MPI Library now offers a full MPI 4.0 implementation including Partitioned Communication, Improved Error handling, and Fortran 2008 support
  • New Intel MPI Library optimizations for MPI_Allreduce improve scale up and scale out performance for Intel GPUs
  • ISO C++ Parallel STL code runs on CPU and offloads to GPU using Intel® oneAPI DPC++/C++ Compiler.
  • Experience dynamic and flexible GPU programming with Intel® oneAPI DPC++/C++ Compiler's SYCL Bindless Textures support, utilizing textures at runtime without compile-time knowledge for improved performance and scalability in C++ with SYCL applications, alongside powerful new LLVM sanitizers to streamline development and ensure enhanced device code reliability.
  • Maximize your application's efficiency with Intel oneAPI DPC++/C++ Compiler's performance optimization features, tailored for the latest Intel platforms including Intel® Xeon® 6 Processors and Intel® Core™ Ultra processors (Series 2), to deliver peak performance and cutting-edge computing experiences.
  • Leverage enhanced OpenMP standards support and performance enhancements with the Intel® oneAPI DPC++/C++ Compiler, including OpenMP 5.x and 6.0 features for increased efficiency and flexibility, complemented by upgraded compiler opt-report capabilities for in-depth performance insights and optimization feedback.
  • GPU kernels run faster with Intel® oneAPI DPC++ Library (oneDPL) improved performance by up-to 4X for algorithms including reduce, scan and many other functions. 
  • Use oneDPL Range-based algorithms with over 20 new C++20 standard ranges and views to accelerate on multiarchitecture devices.
  • Intel® Math Kernel Library (oneMKL)SYCL Discrete Fourier Transform API is easier to use and to debug with key compilation messages added for type safety, reducing time to develop your application, especially when targeting Intel GPUs.
  • HPC workloads using oneMKL single precision 3D real in-place FFTs run faster on Intel® Data Center GPU Max Series.
  • Multi-threads apps run faster with Intel® oneAPI Threading Building Blocks (oneTBB) task_group, flow_graph and parallel_for_each improved scalibility
  • Get result faster using oneTBB flow graph to process overlapping messages on a shared graph, waiting for a specific message using the new try_put_and_wait experimental API
  • Intel® Integrated Performance Primitives (Intel IPP) now boasts CET-enabled protection, safeguarding your software against control-flow attacks and mitigates exploitation risks. Safeguard your software with cutting-edge, hardware-enforced security measures.
  • Use Intel® Cryptography Primitives Library to turbocharge RSA encryption (2K, 3K, 4K) with multi-buffer capabilities—achieving up to 4x the speed of OpenSSL.
  • Use Intel® Cryptography Primitives Library to dive into the future of hashing with our enhanced SM3 algorithm, now 5x faster thanks to the SM3_NI instructions
  • Intel® VTune™ Profiler now identifies GPU-bound bottlenecks, optimize rendering pipelines, and improve overall application responsiveness for media and content creation applications on Intel® Core™ Ultra 200V, codenamed Lunar Lake.
  • Intel® VTune™ Profiler now identifies and optimizes device-side inefficiencies for Direct X APIs.
  • Intel® Advisor introduces a more adaptable kernel matching mechanism, enabling developers to identify and analyze code regions relevant to their specific optimization goals. The integration with the XCG app streamlines the process of offloading computation to GPUs, enhancing performance on Intel's latest hardware.
  • Intel® oneAPI Deep Neural Network Library (oneDNN) dramatically boosts performance for Large Language Models and scaled dot-product subgraphs.
  • Intel® oneAPI Communications Library (oneCCL) now includes optimizations that enable workloads to scale and perform even better than before. Important enhancements have been made to key collectives, and even more optimizations are now available on single-node CPU configurations.  
  • Save time with Intel® DPC++ Compatibility Tool to easily migrate your CUDA code and CMake build script to SYCL as demonstrated by auto migration of more APIs used by popular AI, HPC and rendering apps.  The migrated code is easy to comprehend with SYCLcompat, easy to debug using CodePin, and runs performantly on Nvidia GPUs
  • Free your imaging apps from vendor lock-in using Intel® DPC++ Compatibility Tool to migrate bindless textures APIs to SYCL image extension
  • Intel® Distribution for GDB* adds support for Intel® Core™ Ultra processors (Series 2) on Windows* allowing developers to efficiently debug application code on these new CPUs and GPUs.
  • Intel® Distribution for GDB* rebases to GDB* 15 staying current and aligned with the latest enhancements supporting effective application debug.
  • Intel® Distribution for GDB* enhances the developer experience, both on the command line and when using Microsoft* Visual Studio and Visual Studio Code* by boosting the debugger performance and refining the user interface.

Intel® oneAPI DPC++/C++ Compiler 2025.0

  • New Features for standard support such as OpenMP 6.0, Fortran 2023 and SYCL 2020.
  • Optimized for new Intel hardware including EMR, GNR, BMG, and LNL, with features such as cache hints and new data types for AI applications, delivering improved efficiency and computing power.
  • Performance tuning for AI framework and HPC applications.
  • Improvements such opt-report enhancement for better user experiences.
  • Bindless Textures Support implemented for Intel GPUs (DG2, Arc).
  • Device code now supports sanitizers to help identify issues.
  • New SYCL Offload model introduced with --offload-new-driver.
  • Performance enhancements and early support for OpenMP 6.0 features.
  • OpenMP loop rotation issue fixed
  • New OpenMP 6.0 DEVICE_TYPE clause for TARGET construct 
  • Mandatory OpenMP offload support enabled
  • Improved user experience with additional optimization report information for OpenMP offloading.
  • SYCL now offers functionality comparable to CUDA textures for Intel Client GPUs.
  • Advanced support for optional kernel features in Ahead-Of-Time (AOT) compilation mode.
  • SYCL ABI has undergone breaking changes.

Intel® Fortran Compiler 2025.0

  • New F2023 Standard features for the runtime library including the AT Edit Descriptor to trim trailing blanks before output, and SPLIT and TOKENIZE intrinsic functions for parsing character strings. IEEE_ARITHMETIC has been enhanced with F2023 IEEE_MAX, IEEE_MAX_MAG, IEEE_MIN, IEEE_MIN_MAG, along with F2023 behavior changes for IEEE_MAX_NUM, IEEE_MAX_NUM_MAG, IEEE_MIN_NUM and IEEE_MIN_NUM_MAG
  • New OpenMP features in this release:
    1. OpenMP 6.0 An IF clause allowed on TEAMS construct
    2. OpenMP 6.0 A DEVICE_TYPE clause may now appear on a TARGET construct.
    3. OpenMP 5.1 The DEVICE_TYPE clause may appear on a DECLARE TARGET directive.
    4. OpenMp 5.1 AFFINITY clause  is now permitted on a TASK directive.
  • New work on Coarrays that include arrays of coarrays, a data object with a coarray component may now be an array and may be allocatable.
  • The standard-semantics option is now sensitive to a standards conformance level set by the stand option.  If no stand option is specified, standard semantics sets options to conform to Fortran 2018 standard behavior.
  • The Intel® Fortran Developer Guide and Reference received extensive updates to remove older material, refresh existing examples, and added supported Fortran 2018 and 2023 Fortran Language features

Intel® MPI Library 2021.14.0

  • GNR /SRF Tuning and optimizations for both scale out and scale up.
    • GNR - Improved CPU pinning library for optimized balancing for asymmetric CPU topologies. (IPL2 becomes PoR)
  • MPI 4.0 compliance- Support for Partition communication, Improved Error handling, Fortran 2008 support
  • MPI_Allreduce scale-up and scale-out optimizations for Intel GPUs
  • Intel GPU aware reduce optimizations
  • Windows IFX support for MPI
  • OFI and provider update to latest open-source versions

Deprecation Notice

  • Intel® Fortran Compiler Classic (ifort) is now discontinued in oneAPI 2025 release.

Installation Instructions

Please see the Installation Guide for oneAPI Toolkit.

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 Fatal Error: 'C++ Header' File Not Found with Intel® oneAPI DPC++/C++ Compiler.
  • Please read the whitepaper on Challenges, tips, and known issues when debugging heterogeneous programs using DPC++ or OpenMP offload.
  • Running any GPU code on a Virtual Machine is not supported at this time.
  • 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.
  • Eclipse* 4.12: the code sample project created by IDE plugin from Makefile will not build. It is a known issue with Eclipse 4.12. Please use Eclipse 4.9, 4.10 or 4.11.

Deprecated/Removed Features

  • Intel® Fortran Compiler Classic (ifort) is now discontinued in oneAPI 2025 release.
  • The Diagnostics Utility for oneAPI is now deprecated and will be discontinued with the 2025.0 release.
  • Intel® Trace Analyzer and Collector is no longer included in the Intel® HPC Toolkit as of update 2024.1.0. It is now downloadable as a standalone package and it will be discontinued in 2025 or later.
  • Intel® Inspector is no longer included in the Intel® HPC Toolkit as of update 2024.1.0. It is now downloadable as a standalone package and it will be discontinued in 2025 or later.
  • Intel® Fortran Compiler Classic (ifort) is now deprecated and will be discontinued in late 2024. Intel recommends that customers transition now to using the LLVM-based Intel® Fortran Compiler (ifx) for continued Windows* and Linux* support, new language support, new language features, and optimizations.
    For more information on ifx, see the Intel® Fortran Compiler Developer Guide and Reference and the Porting Guide for ifort Users to ifx.
  • The following OS support is now deprecated and will be discontinued with our 2025.0 release.
    • CPU:
      • SUSE Linux Enterprise Server (SLES) version 15 SP3
      • Ubuntu Linux version 20.04
      • Fedora Linux version 37
      • Debian Linux version 11
      • Amazon Linux version 2022
    • GPU:
      • Red Hat Enterprise Linux (RHEL) version 8.6

Tools Included in Intel® HPC Toolkit

Previous oneAPI Releases

Notices and Disclaimers

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Your costs and results may vary.

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Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.