Hi Everyone!
This is my first contact with DMTCP. I'm a phd student and I'm working on a
message logging protocol for MPI. I'm using OpenMPI for implementing my
proposal. I have read the DMTCP documentation and I have few questions. But
first of all, I will tell you why I would like to use a checkpoint tool:
- My message logging protocol supposes that processes create checkpoints on
a uncoordinated approach. Each process creates a checkpoint independently
of other. There will be no coordination among the processes.
- For now, I am not worried about a process recovery. This will be part of
a next phase of my work.
Now my questions about DMTCP.
- There is a coordinator. It is responsible for starting the checkpoints on
the other processes, right? DMTCP follows a coordinated checkpoint approach
and creates a consistent global state, ok?
- Would be possible to use DMTCP, or DMTCP plugin, in order to implement a
uncoordinated checkpoint? In this moment just take checkpoint independently
on each process.
Thank you in advance!
Edson
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