Setting Memory by Environment Variables
Clicked A Few Times
1:19:38 AM PDT - Thu, Mar 12th 2020
I would like to set the available memory of a job through the submission script, rather than inside the input file; I noted that it seems to be possible from the code input/memory._def.F


However, when I set the variable MEM_TOTAL, MEM_HEAP etc, they are all ignored. Does anyone has some idea?

e.g.
export MEM_TOTAL=137438953472 #(1TB)

In the output 

          Memory information

          ------------------



   heap     =   13107200 doubles =    100.0 Mbytes

   stack    =   13107197 doubles =    100.0 Mbytes

   global   =   26214400 doubles =    200.0 Mbytes (distinct from heap & stack)

   total    =   52428797 doubles =    400.0 Mbytes

   verify   = yes

   hardfail = no

Thanks!
~Dominic

Forum Vet
10:30:00 AM PDT - Thu, Mar 12th 2020
Dominic
Thanks for reporting this.
This code path is likely to have been disabled at some point in the past. I was not aware of its existence and we do not even mention it in the documentation.
A combined use of cp, cat and/or echo should allow you to reach the same result in a script ... do you agree?

echo "start myjob " > input.nw
echo " memory 1200 mb " >> input.nw
cp body_of_input.nw >> input.nw

Cheers, Edo

Clicked A Few Times
9:04:52 PM PDT - Thu, Mar 12th 2020
Thanks Edo,

your suggested method will work for sure, but we try to avoid to modify users' input files; it will be a nice feature to set memory outside the input file....

~Dominic


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