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From: Bogdan Costescu (Bogdan.Costescu_at_[hidden])
Date: 2005-05-10 16:11:06


On Tue, 10 May 2005, Michael Lees wrote:

> 1. Force faster context switching between processes

If by faster you mean "that takes less time", then it's not possible.
This is a function of the OS and it's very much dependent of how much
data the OS keeps about a process (which needs to be saved when
jumping to another process) and CPU capabilities of saving internal
state (registers, including possible virtual to physical memory
translations, etc.).

> 2. Assign one process to have a higher scheduler priority

man renice
man sched_setscheduler (and its "SEE ALSO" section)

> Is there anything in the way of documentation regarding lam's
> scheduling behavior in such cases.

This has nothing to do with LAM/MPI.

-- 
Bogdan Costescu
IWR - Interdisziplinaeres Zentrum fuer Wissenschaftliches Rechnen
Universitaet Heidelberg, INF 368, D-69120 Heidelberg, GERMANY
Telephone: +49 6221 54 8869, Telefax: +49 6221 54 8868
E-mail: Bogdan.Costescu_at_[hidden]