Difference between revisions of "Basic Usage: GPU Based Resources With Slurm"

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[[File:Slurm_logo.svg.png|150px]]
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== Introduction ==
 
== Introduction ==
  
Line 26: Line 28:
 
</code>
 
</code>
  
== Submitting Your first Job ==
+
 
==== Create a submission script ====
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== Submitting Your first GPU Job ==
 +
[[File:Quantum_ESPRESSO_logo.jpg|250px]]
 +
==== Create a submission script for Quantum Espresso ====
 
You require a submission script, which is a plain text file with all the instructions for the command you intend to run.
 
You require a submission script, which is a plain text file with all the instructions for the command you intend to run.
Create a working directory in your scratch directory:  
+
Retreive the example files in your scratch directory from this [ https://github.com/Materials-Modelling-Group/training-examples | github repository ]
 
<code bash>
 
<code bash>
 
   cd ~/localscratch/
 
   cd ~/localscratch/
   mkdir test
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   git clone https://github.com/Materials-Modelling-Group/training-examples.git
 +
  cd  training-examples
 
</code>
 
</code>
 +
 
and in this directory we will place the following text content in a file:
 
and in this directory we will place the following text content in a file:
 
<code bash>
 
<code bash>
  #!/bin/bash
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#!/bin/bash
 
   
 
   
  #SBATCH -J  gputest              # Job name
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#SBATCH -J  gputest              # Job name
  #SBATCH -o job.%j.out        # Name of stdout output file (%j expands to jobId)
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#SBATCH -o job.%j.out        # Name of stdout output file (%j expands to jobId)
  #SBATCH -e %j.err            # Name of std err
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#SBATCH -e %j.err            # Name of std err
  #SBATCH --partition=gpu1    # Queue
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#SBATCH --partition=gpu1    # Queue
  #SBATCH --nodes=1            # Total number of nodes requested
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#SBATCH --nodes=1            # Total number of nodes requested
  #SBATCH --gres=gpu:1            # Total number of gpus requested
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#SBATCH --gres=gpu:1            # Total number of gpus requested
  #SBATCH --cpus-per-task=1    #  
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#SBATCH --cpus-per-task=1    #  
  #SBATCH --time=00:03:00        # Run time (hh:mm:ss) - 1.5 hours
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#SBATCH --time=00:03:00        # Run time (hh:mm:ss) - 1.5 hours
 
    
 
    
  # Launch MPI-based executable
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# Launch MPI-based executable
  module load applications/qespresso/7.3.1  
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module load applications/gpu/qespresso/7.3.1  
 
    
 
    
  cd $HOME/localscratch/test
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cd $HOME/localscratch/training-examples
  mpirun -np 4 pw.x <input.in > output.out
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mpirun -np 1 pw.x <al.scf.david.in > output.out
 
</code>
 
</code>
Put this in a file called *test.slurm*
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 +
Put this in a file called '''test.slurm'''
  
 
==== Submitting the Job to the Queue ====
 
==== Submitting the Job to the Queue ====
Line 63: Line 70:
 
</code>
 
</code>
 
This will run the named program on a single GPU,  note that the GPU acceleration is built into the program, if the program itself does not support GPU acceleration, attempting to run on the GPU will fail.
 
This will run the named program on a single GPU,  note that the GPU acceleration is built into the program, if the program itself does not support GPU acceleration, attempting to run on the GPU will fail.
 +
 +
== [https://asciinema.org/a/i0VEeL4p6CdpJA9iUFMNTvPQT Watch Demo ] ==
  
 
Next:
 
Next:
[[Module_system|Module_system]]
+
[[Intermediate Usage: PyTorch and Tensorflow|Intermediate usage: PyTorch and Tensorflow]]
  
 
Up:
 
Up:
 
[[ HPC_Usage| HPC_Usage]]
 
[[ HPC_Usage| HPC_Usage]]

Latest revision as of 19:31, 8 May 2025

Slurm logo.svg.png

Introduction

Simple commands with SLURM

You can obtain information on the Slurm "Partitions" that accept jobs using the sinfo command

   $ sinfo
   PARTITION AVAIL  TIMELIMIT  NODES  STATE NODELIST
   test         up       1:00      1   idle gnt-usiu-gpu-00.kenet.or.ke
   gpu1         up 1-00:00:00      1   idle gnt-usiu-gpu-00.kenet.or.ke
   normal*      up 1-00:00:00      1   idle gnt-usiu-gpu-00.kenet.or.ke


The test partition is reserved for testing, with a very short time limit. The normal partition is to be used for CPU only jobs, and the gpu1 queue is reserved for GPU jobs. Both production partitions have a time limit of 24 hours at a time for individual jobs.

Showing The Queue

The squeue slurm command will list all submitted jobs, and will give you an indication of how busy the cluster is, as well as the status of all running or waiting jobs. Jobs that are complete will exit the queue and will not be in this list.

   $ squeue 
   JOBID PARTITION     NAME     USER ST       TIME  NODES NODELIST(REASON)
    63    normal     gpu1   jotuya  R       0:03      1 gnt-usiu-gpu-00.kenet.or.ke
   $


Submitting Your first GPU Job

Quantum ESPRESSO logo.jpg

Create a submission script for Quantum Espresso

You require a submission script, which is a plain text file with all the instructions for the command you intend to run. Retreive the example files in your scratch directory from this [ https://github.com/Materials-Modelling-Group/training-examples | github repository ]

 cd ~/localscratch/
 git clone https://github.com/Materials-Modelling-Group/training-examples.git
 cd  training-examples

and in this directory we will place the following text content in a file:

#!/bin/bash

#SBATCH -J  gputest               # Job name
#SBATCH -o job.%j.out         # Name of stdout output file (%j expands to jobId)
#SBATCH -e %j.err             # Name of std err
#SBATCH --partition=gpu1    # Queue
#SBATCH --nodes=1             # Total number of nodes requested
#SBATCH --gres=gpu:1             # Total number of gpus requested
#SBATCH --cpus-per-task=1     # 
#SBATCH --time=00:03:00        # Run time (hh:mm:ss) - 1.5 hours
  
# Launch MPI-based executable
module load applications/gpu/qespresso/7.3.1 
 
cd $HOME/localscratch/training-examples 
mpirun -np 1  pw.x <al.scf.david.in > output.out

Put this in a file called test.slurm

Submitting the Job to the Queue

The slurm sbatch command provides the means to submit batch jobs to the queue:

   $ sbatch  test.slurm 
   Submitted batch job 64
   $

This will run the named program on a single GPU, note that the GPU acceleration is built into the program, if the program itself does not support GPU acceleration, attempting to run on the GPU will fail.

Watch Demo

Next: Intermediate usage: PyTorch and Tensorflow

Up: HPC_Usage