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seongyun_k_
Beginner
99 Views

How to limit the amount of memory to be used for Eager messaging protocol?

Intel MPI has a parameter 'I_MPI_EAGER_THRESHOLD',

My program crashes due to OOM due to the memory used for Eager messaging protocols.

However, I cannot make it to Randevous protocol due to performance reasons.
(I skip explaining the reasons here, sorry :D)

 

Is there any way to limit the amount of memory to be used for Eager messaging protocol?
I just want to know there exists such a way!

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1 Reply
Dmitry_S_Intel
Moderator
99 Views

Hi,

How many ranks is used in your program?

Can you provide debug output with I_MPI_DEBUG=6 ?

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