Hp XC System 2.x Software Instrukcja Użytkownika Pobierz pdf (Strona 106)

Example 7-20: View Job Details in LS F (co n t. )

<normal>, 4 Processors Requested;

date and time stamp: Dispatched to 4 Hosts/Processors

<4*lsfhost.localdomain>

;

date and time stamp: slurm_id=105;ncpus=4;slurm_alloc=n[1-4];

date and time stamp: Starting (Pid 13938);

Summary of time in seconds spent in various states by date and time stamp

PEND PSUSP RUN USUSP SSUSP UNKWN TOTAL

90251000260

Example 7-21: Running Jobs from an xterm Window

$ hostname

$ srun hostname

$ srun -n2 hostname

n1 n2

When you finish with your interactive session, exit from the terminal window. This completes

your job in LSF-HPC.

7.6.2 Submitting an Interactive Job to Launch a Shell

Yo u can submit an interactive shell, such as the Korn shell or bash,asthejobname parameter

when y ou submit a job to LSF-H PC; however, the int eracti on with the launched shell program

is limited. Example 7-22 shows such a job submission:

Example 7-22: Submitting an Interactive Shell Program

$ bsub -Is -n4 -ext "SLURM[nodes=4]" /bin/bash

Job <95> is submitted to default queue <normal>.

<<Waiting for dispatch ...>>

<<Starting on lsfhost.localdomain>>

hostname

srun hostname

exit

The ob vious lim itat ion is the absence of the shell prompt. Signal support is also l im ited.

The job starter script uses the srun command to execute a job on the first allocated node

instead of the LSF execution host. The srun command does not provide full tty support; it

simply executes the program it was given and sets up I/O connections for STDIN, STDOUT,

and STDERR of the program back to the launching process.

If this type of interaction is needed often, ask the system administrator to configure a special

queue in LSF-HPC that does not have a job starter script configured. This provides a more

7-22 Using LSF

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Hp XC System 2.x Software Instrukcja Użytkownika Strona 106