i need to know if there is any reported "remote checkpoint" time measured
i need to compare the time taken to perform local checkpoint of a certain
application to the time taken to checkpoint the same application but to a
remote node (so the checkpoint files will not be on the same machine)
i know that it may depend on other factors like the network properties and the
speed of it but i need any real example
thank you
From: [email protected]
Date: Sun, 26 Oct 2014 08:07:38 -0700
Subject: Re: [Dmtcp-forum] checkpoint to a remote location
To: [email protected]
CC: [email protected]
In that case, just do the following:
cd /path/to/Myapplication /path/to/dmtcp_coordinator
On Sun, Oct 26, 2014 at 1:52 AM, basma a.azeem <[email protected]>
wrote:
the shared folder named Myapplication on the node centralStore is accessible
from my node which we call node1 for example , i just miss some details about
how to run the dmtcp_coordinator on node1 to store ./dmtcp_restart_script.sh
file on central store on the folder Myapplication
Basma
From: [email protected]
Date: Sun, 26 Oct 2014 01:15:29 -0700
Subject: Re: [Dmtcp-forum] checkpoint to a remote location
To: [email protected]
CC: [email protected]
On Sun, Oct 26, 2014 at 1:05 AM, basma a.azeem <[email protected]>
wrote:
Hi Kapil,
thank you for your reply
so i can put the path to shared folder in the checkpoint using the flag to
dmtcp_launch like that:if i have a node named centralStore and shared folder on
it named Myapplication
--ckptdir //centralStore/Myapplicationthis will put the checkpoint files on
the shared folder named Myapplication on a node named centralStore
Correct.
the second part concerning The restart script , i need to run an application on
one node lets call it node1 and i need to checkpoint that application but store
the checkpoint files and restart script on a second node lets call it central
store . so to do this you said that i need to "cd <dirname>;
/path/to/dmtcp_coordinator" but the directory here is not on the same machine
If the shared folder is not accessible on the node where the dmtcp_coordinator
is running, then unfortunately, there is nothing we can do except for copying
the restart script by hand. An alternative is to run the dmtcp_coordinator on
one of the other nodes where the shared folder is accessible.
Basma
From: [email protected]
Date: Sun, 26 Oct 2014 00:33:16 -0700
Subject: Re: [Dmtcp-forum] checkpoint to a remote location
To: [email protected]
CC: [email protected]
Hi Basma,
You can use the "--ckptdir <dirname>" flag to dmtcp_launch to put ckpt images
in a certain directory. The restart script is a little trickier. But the
simplest way is to do "cd <dirname>; /path/to/dmtcp_coordinator". Dmtcp
coordinator put the restart script in the same directory where it was started
from, so if you change to your shared directory before running
dmtcp_coordinator, everything should work just fine.
Kapil
On Sat, Oct 25, 2014 at 3:23 PM, basma a.azeem <[email protected]>
wrote:
Hi
How can i checkpoint to a certain shared folder on a certain node on my network
i mean to save the checkpoint files and the ./dmtcp_restart_script.sh file on a
remote central node during the checkpoint process
as if the checkpoint directory is located at a shared folder on a pc on a
network
thank you
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