Intel OneAPI based SYCL on Intel Arch A750

[EminOzturk]

Hi All,

       I am trying to run my SYCL code on Intel Arc A750 GPU. For some big size, I am getting the runtime error. I dont know why but max I can allocate 256MB on device's Memory. Is there any way to allocate more than that? Intel GPU has 8gb ram.

 

 Thanks

Emin

[Hugo_Intel]

Hello EminOzturk

Thank you for posting on the Intel® ARC™ Graphics. I am sorry to hear that you are experiencing issues on OneAPI when using your Intel® Arc™ A750 Graphics.

Please allow me to check this issue internally and I will post back once I have an update for you.

Best Regards,

Hugo O.

Intel Customer Support Technician.

[EminOzturk · Accepted solution]

Hi Hugo

    We solved this issue by activating resizable bar on BIOS settings.  https://game.intel.com/story/intel-arc-graphics-resizable-bar/

 Someone helped us on SYCL slack channel.  His answer was "The CPU can't address more than 256MB in one chunk when ReBAR is off, and Intel GPUs were designed to have ReBAR always on." So by changing BIOS setting of resizable bar to on It was fixed. 

Thanks

[Hugo_Intel]

Hello EminOzturk

We are glad to know you found a solution, thank you for taking the time to share this fix, and hopefully, it may help other community members experiencing similar behavior. Since the thread is now solved, we will proceed to close it. Please keep in mind that this thread will no longer be monitored by Intel.

Thank you for your understanding.  

Best Regards,

Hugo O.

Intel Customer Support Technician.