mpirun stuck at opening nc file

[Shruti]

Hi,

I was trying to execute B1850 , f09_g17 with clang compiler.
./case.submit is stuck at the following step for more than 12 hrs
" Opened existing file cime/projects/cesm-inputdata/atm/cam/dst/dst_source2x2tunedcam6-2x2-04062017.nc"

I am unable to deduce why case.submit is getting stuck at this point.
Any help will be appreciated

 

[jedwards]

This may be a filesystem issue - do all of your compute nodes have access to the file?

 

[Shruti]

Actually i am working on a single compute node.
And B1850 with GCC compiler seems to have worked for me.
Not sure why this error is occuring now.

I even checked ncdump of the above mentioned file.
It lists content as attached.
Any other method i need to check?

 

[jedwards]

B1850 f09_g17 on a single node? I'll bet that you are out of memory - use a smaller case or a larger system.

 

[Shruti]

Well, it did give memory issues.
But have added -mcmodel=medium flag and ulimit -s unlimited.
Thing is it did get executed once successfully with GNU.
Now again facing issues (Even with GNU).
Could the above hang in opening nc file be related to memory or some other reason?