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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