Hi Michal,
I couldn't reproduce the WARNING on my local machine with a serial
application. Could you tell me a bit more about the environment and a bit
more detailed steps to reproduce it?
Kapil
On Tue, Jul 7, 2015 at 7:23 AM, Michał Waleszczuk <
michal.waleszc...@gmail.com> wrote:
> Hey,
>
> I was using dmtcp-2.3.1 with OpenMPI-1.8.6 to create checkpoints on
> parallel application. It worked fine till restart, when he couldn't find
> file in 'tmp' directory. I tried the same with dmtcp-2.4.0-rc5 and there it
> works great.
>
> However option --enable-unique-checkpoint-filenames doesn't work. I get
> the following response:
>
> NOTE at dmtcp_coordinator.cpp:1291 in startCheckpoint; REASON='starting
> checkpoint, suspending all nodes'
> s.numPeers = 1
> [3592] NOTE at dmtcp_coordinator.cpp:1293 in startCheckpoint;
> REASON='Incremented Generation'
> compId.generation() = 11
> [3592] NOTE at dmtcp_coordinator.cpp:654 in updateMinimumState;
> REASON='locking all nodes'
> [3592] NOTE at dmtcp_coordinator.cpp:660 in updateMinimumState;
> REASON='draining all nodes'
> [3592] NOTE at dmtcp_coordinator.cpp:666 in updateMinimumState;
> REASON='checkpointing all nodes'
> [3592] WARNING at dmtcp_coordinator.cpp:1562 in writeRestartScript;
> REASON='JWARNING(symlinkat(uniqueFilename.c_str(), dirfd, filename.c_str())
> == 0) failed'
> [3592] NOTE at dmtcp_coordinator.cpp:680 in updateMinimumState;
> REASON='building name service database'
> [3592] NOTE at dmtcp_coordinator.cpp:696 in updateMinimumState;
> REASON='entertaining queries now'
> [3592] NOTE at dmtcp_coordinator.cpp:701 in updateMinimumState;
> REASON='refilling all nodes'
> [3592] NOTE at dmtcp_coordinator.cpp:732 in updateMinimumState;
> REASON='restarting all nodes'
> JTIMER(checkpoint) : 1.642
>
> The thing is that even with serial application i get this warning and at
> last i have only the newest checkpoint file.
>
> Thanks in advance for your help!
> Michal
>
>
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