Re: [Scalablecr-discuss] User configuration file format

[Mohror, K. <mo...@ll...>]

Hi Maksym,

> 
> I decided to try out SCR. I compiled it and installed as specified in the manual.
> No I try to specify checkpoint descriptors in use configuration file.

Glad to hear you're trying out SCR!
 
> It turns out that the documentation describes other format, from what an
> example at https://github.com/hpc/scr/blob/master/scr.user.conf shows.
> 
> For example, file doc/scr_users_manual.pdf does not contain keyword
> CKPTDESC whatsoever.
> 
> Could you tell me what is the correct format?

It looks like you have uncovered a bug in the example scr.user.conf file. Please use the keyword CKPT as you found in the user's guide for those lines instead of CKPTDESC.
 
> I tried to use the one which documentation specifies, but I get an error which
> tells, that I probably don't have enough nodes:
> 
> SCR v1.1.8 WARNING: rank 10 on taurusi6325: Failed to find partner
> processes for redundancy descriptor 0, disabling checkpoint, too few nodes?
> @ scr_reddesc.c:169
> 
> I definitely do, because I specify SET_SIZE=1 and create a job with 4 nodes.

Yes, this error is related to the SCR_SET_SIZE parameter. Try setting it to 8 and see if it works better. I believe the reason you get that message is because the set size needs to be greater to 1 for a redundancy scheme to work.

Let me know if that helps! If not we can work some more on it.

Kathryn
> 
> I attach all the configuration files for completeness.
> 
> --
> Regards,
> Maksym Planeta