Introduction
System requirements for the Intel® SPMD Program Compiler (Intel® ISPC) component of Intel® oneAPI Rendering Toolkit
Version History
| Date | Toolkit Version | Component Version | Major Change Summary |
| September 2023 | 2023.2.1 | 1.20.0 | No change |
| July 2023 | 2023.2.0 | 1.20.0 | Performance updates. oneTBB backend. |
| May 2023 | 2023.1.1 | 1.19.0 | No change |
| March 2023 | 2023.1 | 1.19.0 | Function templates. Updated device optimizations. |
| December 2022 | 2023.0 | 1.18.0 | No Change |
| September 2022 | 2022.3.1 | 1.18.0 | No Change |
| September 2022 | 2022.3 | 1.18.0 | ISPCRT: New API for memory (off-host) |
| April 2022 | 2022.2 | 1.17.0 | Xe architectural updates, ISPCRT added |
| December 2021 | 2022.1 | 1.16.1 | Added to oneAPI distribution |
2023.2.1
The Intel® oneAPI 2023.2.1 release has no changes for this component. See 2023.2.0 for system requirements.
2023.2.0
Intel® oneAPI 2023.1 is validated on Windows and Linux.
Note: ISPC is used in a CPU-only context with rendering libraries. ISPC is suitable on CPU for creating client programs of Intel® Embree and/or Intel® Open Volume Kernel Library at this time. However, ISPC can be used to target GPU as a standalone.
Windows Intel® Graphics Driver
To install the driver follow the directions in the article appropriate for your device
- Intel® Arc™ A-Series Graphics (DG2)
- Intel® Data Center GPU Flex Series (ATS-M)
- https://registrationcenter.intel.com/en/products/subscription/956/
- Contact your OEM representative for access to the Intel Registration Center.
Linux General Purpose Intel GPUs (GPGPU) Driver
-
For all Intel GPUs, see this article, https://dgpu-docs.intel.com/, and follow the directions for your device.
Supported Operating Systems (Host and Target)
NOTE: The following distributions are supported by most components. These OS distributions are tested by Intel or known to work; other distributions may or may not work and are not recommended. If you have questions, access the Intel Community Forums when you need assistance. If you have Commercial Support, create a support ticket.
Linux* CPU Host
- Ubuntu* LTS 22.04, 20.04
- Rocky* Linux 8, 9
- Red Hat* Enterprise Linux* (RHEL*) 8, 9
- SUSE Linux Enterprise Server* (SLES) 15 SP3, SP4
- Fedora* 36,37
- Debian* 9, 10, 11
- Amazon 2, 2022
- WSL 2
Linux* GPU Host (Xe-HPG or Xe-HPC architectures and higher)
NOTE: As of 2023.1, only the Embree library component has discrete GPU support.
- Ubuntu* LTS 22.04, 20.04
- Intel® Arc™ A-Series Graphics, Intel® Data Center GPU Flex Series
- Red Hat* Enterprise Linux* (RHEL*) 8.5
- Intel® Data Center GPU Flex Series
- Red Hat* Enterprise Linux* (RHEL*) 8.6
- Intel® Data Center GPU MAX Series, Intel® Data Center GPU Flex Series
- SUSE Linux Enterprise Server* (SLES) 15 SP3, SP4
- Intel® Data Center GPU MAX Series
Updates to OS and driver support for discrete GPU are occurring rapidly. Please see https://dgpu-docs.intel.com/ for OS support updates. To target discrete GPU, a compatible discrete GPU device is currently required both at client program build-time and at run-time.
Known Issues
GPU offload applications using extensive multi-threading (>2 threads) may experience hangs or time out which can be recovered only though a hard reset or power cycling of the system for the following Linux Distributions. The issue occurs when reading/writing data to the Intel GPU while making extensive use of multi-threading due to a defect in older Linux kernels.
| Kernel/Distribution | Problem Occurs | Problem Does Not Occur |
| RedHat Enterprise Linux | RHEL 8.4 (kernel 4.18.0-305) and older | RHEL 8.5 (kernel 4.18.0-348) |
| SUSE Linux | SLES15 SP3 and older | SLES15 SP4 beta |
| Ubuntu Linux | Ubuntu releases older than 20.04.03 | Ubuntu 20.04.03 (kernel 5.11.0-40-generic #44~20.04.2-ubuntu)* |
Workaround
- Preferred: Upgrade to a Linux* distribution where the defect has been fixed. Note that the software will run, but a warning message will appear in kernel logs.
- GPU software for Ubuntu 20.04.03 is available now via https://dgpu-docs.intel.com. Note that the software will run, but a warning message will appear in kernel logs. GPU software for RHEL 8.5. will be available in Q1 2022 at the same location. GPU software for SLES15 SP4 will be available shortly after general availability of SLES15 SP4.
- Alternative: Do not use extensive multi-threading in GPU-enabled applications, i.e. keep the number of threads no more than 2. For example, for applications using the oneAPI MPI library, use the single threaded version of the MPI run-time library, rather than the multi-threaded version. Set the environment variable I_MPI_THREAD_SPLIT=0 to use the single threaded version of MPI.
Windows* CPU/GPU Host
- Windows* 10
- Windows* 11
- Windows* Server 2019, 2022
macOS* CPU Host
- Intel® 64 based systems:
- macOS* 12.0 Monterey
- macOS* 13.0
- Apple* M1 based systems:
- macOS* 12.0 Monterey or higher
Supported Target Hardware Platforms
The following platforms are supported by most software components.
NOTE: Intel® 64 hardware platforms must support at least Intel® Streaming SIMD Extensions 4.2. Full software optimization is implemented for Intel® Advanced Vector Extensions 512. See ark.intel.com to search device capabilities.
- Intel® 64
- Intel Atom® processors
- Intel® Core™ processor family
- Intel® Xeon® processor family
- Intel® Xeon® Scalable processor family
- ARM
- Apple* M1
- Xe-HPG or Xe-HPC architectures and higher
- Intel® Data Center GPU Max Series
- Intel® Data Center GPU Flex Series
- Intel® Arc™ GPUs
Deprecation
As announced previously, Windows driver support of integrated graphics processors included with 6th - 10th Gen Intel Core Processor and related Intel Atom®, Pentium®, and Celeron® processors is deprecated and has moved to maintenance mode. Only security and critical bug fixes will be updated.
oneAPI tools using existing integrated graphics processor functionality in the aforementioned processors may continue to work, but will no longer be supported. Note that CPU functionality for these processors remains fully supported and unaffected. Please check the oneAPI forum and release notes for further details.
Software Requirements
Prerequisites
- A C99 and C++14 capable compiler build environment
- For linking C/C++ objects
- C++17 or higher recommended
Development Environment
Windows* OS:
- Microsoft Visual Studio* 2019 or higher is recommended
macOS*:
- XCode* & XCode* command line tools
2023.1
Intel® oneAPI 2023.1 is validated on Windows and Linux.
Note: ISPC is used in a CPU-only context with rendering libraries. ISPC is suitable on CPU for creating client programs of Intel® Embree and/or Intel® Open Volume Kernel Library at this time. However, ISPC can be used to target GPU as a standalone.
Windows Intel® Graphics Driver
To install the driver follow the directions in the article appropriate for your device
- Intel® Arc™ A-Series Graphics (DG2)
- Intel® Data Center GPU Flex Series (ATS-M)
- https://registrationcenter.intel.com/en/products/subscription/956/
- Contact your OEM representative for access to the Intel Registration Center.
Linux General Purpose Intel GPUs (GPGPU) Driver
-
For all Intel GPUs, see this article, https://dgpu-docs.intel.com/, and follow the directions for your device.
Supported Operating Systems (Host and Target)
NOTE: The following distributions are supported by most components. These OS distributions are tested by Intel or known to work; other distributions may or may not work and are not recommended. If you have questions, access the Intel Community Forums when you need assistance. If you have Commercial Support, create a support ticket.
Linux* CPU Host
- Ubuntu* LTS 22.04, 20.04
- Rocky* Linux 8, 9
- Red Hat* Enterprise Linux* (RHEL*) 8, 9
- SUSE Linux Enterprise Server* (SLES) 15 SP3, SP4
- Fedora* 36,37
- Debian* 9, 10, 11
- Amazon 2, 2022
- WSL 2
Linux* GPU Host (Xe-HPG or Xe-HPC architectures and higher)
NOTE: As of 2023.1, only the Embree library component has discrete GPU support.
- Ubuntu* LTS 22.04, 20.04
- Intel® Arc™ A-Series Graphics, Intel® Data Center GPU Flex Series
- Red Hat* Enterprise Linux* (RHEL*) 8.5
- Intel® Data Center GPU Flex Series
- Red Hat* Enterprise Linux* (RHEL*) 8.6
- Intel® Data Center GPU MAX Series, Intel® Data Center GPU Flex Series
- SUSE Linux Enterprise Server* (SLES) 15 SP3, SP4
- Intel® Data Center GPU MAX Series
Updates to OS and driver support for discrete GPU are occurring rapidly. Please see https://dgpu-docs.intel.com/ for OS support updates. To target discrete GPU, a compatible discrete GPU device is currently required both at client program build-time and at run-time. Intel® processor graphics Gen12, Intel® Iris Xe MAX(codename DG1) devices are not compatible with Render Kit.
Known Issues
GPU offload applications using extensive multi-threading (>2 threads) may experience hangs or time out which can be recovered only though a hard reset or power cycling of the system for the following Linux Distributions. The issue occurs when reading/writing data to the Intel GPU while making extensive use of multi-threading due to a defect in older Linux kernels.
| Kernel/Distribution | Problem Occurs | Problem Does Not Occur |
| RedHat Enterprise Linux | RHEL 8.4 (kernel 4.18.0-305) and older | RHEL 8.5 (kernel 4.18.0-348) |
| SUSE Linux | SLES15 SP3 and older | SLES15 SP4 beta |
| Ubuntu Linux | Ubuntu releases older than 20.04.03 | Ubuntu 20.04.03 (kernel 5.11.0-40-generic #44~20.04.2-ubuntu)* |
Workaround
- Preferred: Upgrade to a Linux* distribution where the defect has been fixed. Note that the software will run, but a warning message will appear in kernel logs.
- GPU software for Ubuntu 20.04.03 is available now via https://dgpu-docs.intel.com. Note that the software will run, but a warning message will appear in kernel logs. GPU software for RHEL 8.5. will be available in Q1 2022 at the same location. GPU software for SLES15 SP4 will be available shortly after general availability of SLES15 SP4.
- Alternative: Do not use extensive multi-threading in GPU-enabled applications, i.e. keep the number of threads no more than 2. For example, for applications using the oneAPI MPI library, use the single threaded version of the MPI run-time library, rather than the multi-threaded version. Set the environment variable I_MPI_THREAD_SPLIT=0 to use the single threaded version of MPI.
Windows* CPU/GPU Host
- Windows* 10
- Windows* 11
- Windows* Server 2019, 2022
macOS* CPU Host
- Intel® 64 based systems:
- macOS* 12.0 Monterey
- macOS* 13.0
- Apple* M1 based systems:
- macOS* 12.0 Monterey or higher
Supported Target Hardware Platforms
The following platforms are supported by most software components.
NOTE: Intel® 64 hardware platforms must support at least Intel® Streaming SIMD Extensions 4.2. Full software optimization is implemented for Intel® Advanced Vector Extensions 512. See ark.intel.com to search device capabilities.
- Intel® 64
- Intel Atom® processors
- Intel® Core™ processor family
- Intel® Xeon® processor family
- Intel® Xeon® Scalable processor family
- ARM
- Apple* M1
- Xe-HPG or Xe-HPC architectures and higher
- Intel® Data Center GPU Max Series
- Intel® Data Center GPU Flex Series
- Intel® Arc™ GPUs
Deprecation
As announced previously, Windows driver support of integrated graphics processors included with 6th - 10th Gen Intel Core Processor and related Intel Atom®, Pentium®, and Celeron® processors is deprecated and has moved to maintenance mode. Only security and critical bug fixes will be updated.
oneAPI tools using existing integrated graphics processor functionality in the aforementioned processors may continue to work, but will no longer be supported. Note that CPU functionality for these processors remains fully supported and unaffected. Please check the oneAPI forum and release notes for further details.
Software Requirements
Prerequisites
- A C99 and C++14 capable compiler build environment
- For linking C/C++ objects
- C++17 or higher recommended
Development Environment
Windows* OS:
- Microsoft Visual Studio* 2019 or higher is recommended
macOS*:
- XCode* & XCode* command line tools
2023.0
Intel® oneAPI 2022.3 is validated on Windows and Linux.
Windows Intel® Graphics Driver
To install the driver follow the directions in the article appropriate for your device
- Intel® Arc™ A-Series Graphics (DG2)
- Intel® Data Center GPU Flex Series (ATS-M)
- https://registrationcenter.intel.com/en/products/subscription/956/
- Contact your OEM representative for access to the Intel Registration Center.
Linux General Purpose Intel GPUs (GPGPU) Driver
-
For all Intel GPUs, see this article, https://dgpu-docs.intel.com/, and follow the directions for your device.
Supported Operating Systems (Host and Target)
NOTE: The following distributions are supported by most components. These OS distributions are tested by Intel or known to work; other distributions may or may not work and are not recommended. If you have questions, access the Intel Community Forums when you need assistance. If you have Commercial Support, create a support ticket.
Linux* Host
- Ubuntu* LTS 22.04, 20.04
- Rocky* Linux 8, 9
- Arch Linux*
- Red Hat* Enterprise Linux* (RHEL*) 8, 9
- SUSE Linux Enterprise Server* (SLES) 15 SP3, SP4
- Fedora* 36, 37
- Debian* 11
- Amazon 2022
Known Issues
GPU offload applications using extensive multi-threading (>2 threads) may experience hangs or time out which can be recovered only though a hard reset or power cycling of the system for the following Linux Distributions. The issue occurs when reading/writing data to the Intel GPU while making extensive use of multi-threading due to a defect in older Linux kernels.
| Kernel/Distribution | Problem Occurs | Problem Does Not Occur |
| RedHat Enterprise Linux | RHEL 8.4 (kernel 4.18.0-305) and older | RHEL 8.5 (kernel 4.18.0-348) |
| SUSE Linux | SLES15 SP3 and older | SLES15 SP4 beta |
| Ubuntu Linux | Ubuntu releases older than 20.04.03 | Ubuntu 20.04.03 (kernel 5.11.0-40-generic #44~20.04.2-ubuntu)* |
Workaround
- Preferred: Upgrade to a Linux* distribution where the defect has been fixed. Note that the software will run, but a warning message will appear in kernel logs.
- GPU software for Ubuntu 20.04.03 is available now via https://dgpu-docs.intel.com. Note that the software will run, but a warning message will appear in kernel logs. GPU software for RHEL 8.5. will be available in Q1 2022 at the same location. GPU software for SLES15 SP4 will be available shortly after general availability of SLES15 SP4.
- Alternative: Do not use extensive multi-threading in GPU-enabled applications, i.e. keep the number of threads no more than 2. For example, for applications using the oneAPI MPI library, use the single threaded version of the MPI run-time library, rather than the multi-threaded version. Set the environment variable I_MPI_THREAD_SPLIT=0 to use the single threaded version of MPI.
Windows* Host
- Windows* 10
- Windows* 11
- Windows* Server 2019, 2022
macOS* Host
- Intel® 64 based systems:
- macOS* 12.0 Monterey
- macOS* 13.0
- Apple* M1 based systems:
- macOS* 12.0 Monterey or higher
Supported Target Hardware Platforms
The following platforms are supported by most software components.
NOTE: Intel® 64 hardware platforms must support at least Intel® Streaming SIMD Extensions 4.2. Full software optimization is implemented for Intel® Advanced Vector Extensions 512. See ark.intel.com to search device capabilities.
- Intel® 64
- Intel Atom® processors
- Intel® Core™ processor family
- Intel® Xeon® processor family
- Intel® Xeon® Scalable processor family
- ARM
- Apple* M1
Deprecation
As announced previously, Windows driver support of integrated graphics processors included with 6th - 10th Gen Intel Core Processor and related Intel Atom®, Pentium®, and Celeron® processors is deprecated and has moved to maintenance mode. Only security and critical bug fixes will be updated.
oneAPI tools using existing integrated graphics processor functionality in the aforementioned processors may continue to work, but will no longer be supported. Note that CPU functionality for these processors remains fully supported and unaffected. Please check the oneAPI forum and release notes for further details.
Software Requirements
Prerequisites
- A C99 and C++14 capable compiler build environment
- For linking C/C++ objects
- C++17 or higher recommended
Development Environment
Windows* OS:
- Microsoft Visual Studio* 2019 or higher is recommended
macOS*:
- XCode* & XCode* command line tools
2022.x
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