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submission_script [2021/11/17 22:23] – nicosubmission_script [2021/11/17 22:30] (current) – nico
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 +===== Simple job script =====
 +
 A submission file script contains all the information required by SLURM in order to launch your job. We will detail a very simple script that launch "hostname" on two hosts : A submission file script contains all the information required by SLURM in order to launch your job. We will detail a very simple script that launch "hostname" on two hosts :
  
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   #SBATCH --mail-user=nicolas.greneche@univ-paris13.fr   #SBATCH --mail-user=nicolas.greneche@univ-paris13.fr
   #SBATCH --nodes=2   #SBATCH --nodes=2
 +  
   srun hostname   srun hostname
  
Line 23: Line 25:
   magi75   magi75
  
 +===== OpenMP job script =====
  
 +Here is a simple script for OpenMP :
  
-nicolas.greneche@magi1:~$ cat run.slurm +  nicolas.greneche@magi1:~$ cat run.slurm 
-#!/bin/bash +  #!/bin/bash 
-#SBATCH --job-name=OMP_hello +  #SBATCH --job-name=OMP_hello 
-#SBATCH --output=slurm.out +  #SBATCH --output=slurm.out 
-#SBATCH --error=slurm.err +  #SBATCH --error=slurm.err 
-#SBATCH --partition=COMPUTE-SHORT +  #SBATCH --partition=COMPUTE-SHORT 
-#SBATCH --nodes=1 +  #SBATCH --nodes=1 
-#SBATCH --ntasks-per-node=1 +  #SBATCH --ntasks-per-node=1 
-#SBATCH --cpus-per-task=4+  #SBATCH --cpus-per-task=4 
 +   
 +  export OMP_NUM_THREADS=4 
 +  srun hello_openmp
  
-export OMP_NUM_THREADS=4 +We submit it :
-srun -l hello_openmp+
  
-nicolas.greneche@magi1:~$ sbatch run.slurm +  nicolas.greneche@magi1:~$ sbatch run.slurm 
-Submitted batch job 44075 +  Submitted batch job 44075
-nicolas.greneche@magi1:~$ cat slurm.out +
-Thread 0 says: Hello World on core 6 +
-Thread 0 reports: the number of threads are 4 +
-Thread 1 says: Hello World on core 32 +
-Thread 3 says: Hello World on core 1 +
-Thread 2 says: Hello World on core 14+
  
-nicolas.greneche@magi1:~$ cat run.slurm +And check the output :
-#!/bin/bash +
-#SBATCH --job-name=hello +
-#SBATCH --output=slurm.out +
-#SBATCH --error=slurm.err +
-#SBATCH --nodes=2 +
-#SBATCH --ntasks-per-node=2+
  
-srun ./hellompi+  nicolas.greneche@magi1:~$ cat slurm.out 
 +  Thread 0 says: Hello World on core 6 
 +  Thread 0 reports: the number of threads are 4 
 +  Thread 1 says: Hello World on core 32 
 +  Thread 3 says: Hello World on core 1 
 +  Thread 2 says: Hello World on core 14
  
 +===== MPI job script =====
  
-nicolas.greneche@magi1:~$ sbatch run.slurm +  nicolas.greneche@magi1:~$ cat run.slurm 
-Submitted batch job 44082 +  #!/bin/bash 
-nicolas.greneche@magi1:~$ cat slurm.out +  #SBATCH --job-name=hello 
-Hello world from process 1 of 4 at magi66 +  #SBATCH --output=slurm.out 
-Hello world from process 3 of 4 at magi75 +  #SBATCH --error=slurm.err 
-Hello world from process 0 of 4 at magi66 +  #SBATCH --nodes=2 
-Hello world from process 2 of 4 at magi75 +  #SBATCH --ntasks-per-node=2 
 +   
 +  module load gcc/8.3.0/openmpi/3.1.4 
 +   
 +  srun ./hellompi
  
 +We submit it :
  
 +  nicolas.greneche@magi1:~$ sbatch run.slurm
 +  Submitted batch job 44082
  
 +And check the output :
  
 +  nicolas.greneche@magi1:~$ cat slurm.out
 +  Hello world from process 1 of 4 at magi66
 +  Hello world from process 3 of 4 at magi75
 +  Hello world from process 0 of 4 at magi66
 +  Hello world from process 2 of 4 at magi75
submission_script.1637184238.txt.gz · Last modified: 2021/11/17 22:23 by nico