Disabling intel DDIO in icelake

[mashoodk]

Is there a way to disable intel DDIO in icelake processors ?

We do bulk RDMA of large sizes, as a result DDIO is counter productive. Is there a way it can be disabled in icelake processors ?

[Victor_G_Intel]

Hello mashoodk,

Thank you for posting on the Intel® communities.

To continue with your request can you please provide the following:

1-Are you requesting this information on behalf of a company? If yes, please provide as many details as possible about the company that you work for.

2-Which specific processor model or models from the Ice Lake family are you looking to disable the Intel® Data Direct I/O Technology from?

Regards,

Victor G.

Intel Technical Support Technician

[mashoodk]

We work with Hewlett Packard Enterprise. We wanted to check the performance of RDMA onto persistent memory by disabling DDIO.

We see articles such as,  https://www.pdl.cmu.edu/ftp/NVM/kalia-SoCC20.pdf which recommends disabling DDIO for pmem. 

Can you let us know how to disable it in Icelake processor -

Vendor ID: GenuineIntel
CPU family: 6
Model: 106
Model name: Intel(R) Xeon(R) Platinum 8380 CPU @ 2.30GHz

[Victor_G_Intel]

Hello mashoodk,

Thank you so much for your response.

In this case, the model that you have is considered an OEM-only model; therefore, you will have to go directly with the vendor to whom the processor was purchased in order to get any technical information or documentation, once you have reached them out you can ask them to get the information for you by requesting a Field engineer to be assigned to your project, you can also open a ticket in our IPS support channel and request the information there, or even get in touch with the contact that HP has with Intel within the company.

Best regards,

Victor G.

Intel Technical Support Technician  

[Victor_G_Intel]

Hello mashoodk,

Were you able to check the previous post?  

Please let me know if you need further assistance.  

Victor G. 

Intel Technical Support Technician  

[mashoodk]

Thanks I have seen. Let me take the query through these channels.

[Victor_G_Intel]

Hello mashoodk,

Thank you for your response.

Feel free to let us know once you start receiving the necessary attention on any of those channels.

Best regards,

Victor G. 

Intel Technical Support Technician

[Victor_G_Intel]

Hello mashoodk,

Were you able to check the previous post?  

Please let me know if you still need further assistance

Regards,

Victor G.

Intel Technical Support Technician

[JosueO_Intel]

Hello mashoodk,

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored. 

Best regards,  

Josue O. 

Intel Customer Support Technician