On Jul 22, 2008, at 5:43 AM, Gabriele Fatigati wrote:
Dear OpenMPI developers,
i have some questions about application robustness. , I have read
that in OpenMPI development trunk version will have implemented
techniques of checkpoint and restart. But, i need to know ho this
techniques works. Are they internal functions to insert in my code,
external tool or other?
The checkpoint/restart technique is transparent so there are no
functions to insert into your code. The functionality is described in
the user document on the wiki:
https://svn.open-mpi.org/trac/ompi/wiki/ProcessFT_CR
And, when i restart my application, is it possible to modify the
initial number of processors?
Not at this time. You must restart with the same number of processes
(-np) as you initially started with.
-- Josh
--
Gabriele Fatigati
CINECA Systems & Tecnologies Department
Supercomputing Group
Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy
www.cineca.it Tel: +39 051 6171722
g.fatig...@cineca.it
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