Re: [slurm-users] Executing slurm command from Lua job_submit script?

[Marcus Wagner]

Hi Chansup,

os.execute just returns the EXIT code of the command.

You will need to do a little more, to catch the output of your program, e.g.

function shellExecute(cmd, Output)
   if (Output == nil) then Output = true end
   local file = assert(io.popen(cmd, 'r'))
   if (Output == true) then
      local cOutput = file:read('*all')
      file:close()
      return cOutput
   else
      file:close()
      return
   end
end


Sorry for the delay, I`m on easter holidays and did not follow the list.

Best
Marcus

Am 03.04.2020 um 14:56 schrieb CB:

Hi Marcus,

the essence of the code looks like

in job_submitl.lua script, it execute an external script

os.execute("/etc/slutm/test.sh".." "..job_desc.partition)

and the external test.sh executes the following command to get the partition summary for further processing.

sinfo -h -p $1 -s

But, this sinfo command returned no result.

Regards,
Chansup

On Fri, Apr 3, 2020 at 1:28 AM Marcus Wagner <wag...@itc.rwth-aachen.de <mailto:wag...@itc.rwth-aachen.de>> wrote:

    Hi Chansup,

    could you provde a code snippet?

    Best
    Marcus

    Am 02.04.2020 um 19:43 schrieb CB:
    > Hi,
    >
    > I'm running Slurm 19.05.
    >
    > I'm trying to execute some Slurm commands from the Lua
    job_submit script
    > for a certain condition.
    > But, I found that it's not executed and return nothing.
    > For example, I tried to execute a "sinfo" command from an
    external shell
    > script but it didn't work.
    >
    > Does Slurm prohibit to execute any Slurm command from the Lua
    job_submit
    > command?
    >
    > Thanks,
    > - Chansup