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SYCL USM will work on discrete GPU if-and-only-if the GPU's hardware supports unified virtual address space.

What is case regarding integrated GPUs? Can we assume that any integrated GPU supports USM?

Thanks in advance. Ami

Ami
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1 Answers1

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Yes, integrated GPUs support Unified shared memory. Unified Shared Memory (USM) is a feature that allows both the CPU and GPU to access the same memory space directly, simplifying data sharing between the two processing units.

For more information on Unified shared memory please refer to the following links,

https://www.intel.com/content/www/us/en/docs/oneapi/optimization-guide-gpu/2023-1/unified-shared-memory-allocations.html

https://www.intel.com/content/www/us/en/developer/articles/system-requirements/intel-oneapi-dpcpp-system-requirements.html

https://www.intel.com/content/www/us/en/docs/oneapi/optimization-guide-gpu/2023-0/host-device-memory-buffer-and-usm.html

A book on Data Parallel C++: Mastering DPC++ for Programming of Heterogeneous Systems using C++ and SYCL- James Reinders

VaishnaviV-Intel
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