Will CPU receive all the IPI without any missing?

Hi All,

CPC (Cross Processor Call) in our project is implemented based on IPI.
It means if CPU A wants CPU B to do something, CPU A should call an
CPC interface to issue an IPI to CPU B. Then CPU B will call some
function which was desired by CPU A.

When I read the code of the implementation of CPC, I found that the
code logic has not considered the situation when IPI was missed.

So I'm wondering CPU will receive all the IPIs at any time without any
missing?

Thanks.

On Jun 10, 4:48*am, Steven Zhou wrote:
Hi All,

CPC (Cross Processor Call) in our project is implemented based on IPI.
It means if CPU A wants CPU B to do something, CPU A should call an
CPC interface to issue an IPI to CPU B. Then CPU B will call some
function which was desired by CPU A.

When I read the code of the implementation of CPC, I found that the
code logic has not considered the situation when IPI was missed.

So I'm wondering CPU will receive all the IPIs at any time without any
missing?

You might find this discussion to be of interest:

http://software.intel.com/en-us/foru...ad.php?t=68450

Like everything having to do with multi-processor programming, it
sounds like baling wire and chewing gum to me.

Robert.