[Scalablecr-discuss] Error: Invalid control directory INVALID

[Arjun J R. <rec...@gm...>]

I have a 2-node setup on which I intend to test out scalable checkpointing.
I keep getting the error "Could not identify nodeset" when I issue the
command scr_srun -N2 -n4 abc

I found that the SCR_NODELIST environment variable needs to be set. What
format must the nodeset be provided in ? I could not find it in the pdf
manual or in the readmes. Setting SCR_NODELIST to abc[1-4] or to
abc1,abc2,abc3,abc4 both of which silence the "could not identify nodeset"
warnings. Which is the correct format to set the SCR_NODELIST variable to ?

Also, after the "could not identify nodeset" warning was suppressed, I ran
scr_srun -N2 -n4 abc
to find this error
""ERROR: Invalid control directory INVALID"

I checked the /etc/scr.conf file and it was set to /tmp. I tried changing
it to /home/username/somedir but got the same error. I also tried setting
the SCR_CNTL_BASE environmental to point to /tmp and to
/home/username/somedir but got the same warning message.

How can this issue be resolved ?