SYCL USM on integrated devices

[amimar2]

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?

[VaishnaviV_Intel · Accepted solution]

Hi,

Thanks for posting on Intel communities.

>>Can we assume that any integrated GPU supports USM?

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

Thanks & Regards,

Vankudothu Vaishnavi.

[VaishnaviV_Intel]

Hi,

Thanks for accepting our solution. If you need any additional information, please post a new question as this thread will no longer be monitored by Intel. 

Thanks & Regards,

Vankudothu Vaishnavi.