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NStoj
Beginner
619 Views

One APIC IRQ to interrupt multiple CPU Cores

Hello,

 

Is there a way to utilize one APIC IRQ (X2APIC) to interrupt multiple CPU Cores ?

We are using Xeon D series CPUs, and we would like to initialize one X2APIC to produce interrupt to multiple CPU Cores so we can do some synchronous operations.

 

If this is not possible than we need to make two separate APIC Interrupts, but if we make them at same IRQ rate can we assume that they will be synchronous to each other or there can be drift in Interrupt frequency ?

 

Thank you.

 

Best Regards,

Nikola

 

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4 Replies
SergioS_Intel
Moderator
185 Views

Hello NStoj, I am going to proceed and move your thread to the Embedded Community, so you can get recommendations from fellow community members. Best regards, Sergio S. Intel Customer Support Technician Under Contract to Intel Corporation
NStoj
Beginner
185 Views

Hello @SergioS_@intel​ ,

 

Thank you.

 

Best regards,

Nikola

NStoj
Beginner
185 Views

Can someone shed light onto this subject ?

CarlosAM_INTEL
Moderator
185 Views

Hello, @NStoj​:

 

Thank you for contacting Intel Embedded Community.

 

In order to be on the same page, could you please let us know the part number of the processors related to this thread?

 

We are waiting for your answer.

 

Best regards,

@Mæcenas_INTEL​ .

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