LAM/MPI General User's Mailing List Archives

From: Angel Tsankov (fn42551_at_[hidden])
Date: 2005-11-21 15:46:44

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• In reply to: Jeff Squyres: "Re: LAM: Ethernet startup times faster than shared memorycommunications?!"
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• Reply: Jeff Squyres: "Re: LAM: Ethernet startup times faster than sharedmemorycommunications?!"

>> And finally, I just wonder if communication time depends on the
>> amount
>> of data to be transferred when shared memory is used.
>
> Yes, message size definitely affects communication time, regardless
> of
> the communication media (i.e., even with shared memory).
>

What about communication startup time? Does it depend on the size of
data if Ehternet is used?

• Next message: Jeff Squyres: "Re: LAM: How do i fix this problem"
• Previous message: Ralf Wildenhues: "Re: LAM: How do i fix this problem"
• In reply to: Jeff Squyres: "Re: LAM: Ethernet startup times faster than shared memorycommunications?!"
• Next in thread: Jeff Squyres: "Re: LAM: Ethernet startup times faster than sharedmemorycommunications?!"
• Reply: Jeff Squyres: "Re: LAM: Ethernet startup times faster than sharedmemorycommunications?!"