#!/bin/bash
#SBATCH --cpus-per-task=1
#SBATCH --mem-per-cpu=[MEMORY_NEEDED_FOR_JOB]
#SBATCH --partition=[PARTITION/QUEUE]
#SBATCH --time=[DAYS]-[HOURS]:[MINUTES]:[SECONDS]
#SBATCH --job-name=[JOBNAME]
#SBATCH --mail-user=[USERNAME]@memphis.edu
#SBATCH --output=[STDOUT].out
#SBATCH --error=[STDERR].err
#SBATCH --array=[BEGIN]-[END]


#################################################
# [SOMETHING]                                   #
#-----------------------------------------------#
# Please replace anything in [] brackes with    #
# what you want.                                #
# Example:                                      #
# #SBATCH --partition=[PARTITION/QUEUE]         #
# Becomes:                                      #
# #SBATCH --partition=computeq                  #
#################################################

#################################################
# --array=[BEGIN]-[END]                         #
#-----------------------------------------------#
# This is the essential option for an array job.#
# [BEGIN] and [END] are the range of values that#
# $SLURM_ARRAY_TASK_ID will take. Each array    #
# task id will be its own job. The total number #
# of array task ids is included in the variable #
# $SLURM_ARRAY_TASK_COUNT.                      #
#################################################
# --partition=[PARTITION/QUEUE]                 #
#-----------------------------------------------#
# computeq: 40 cores, 192 GB mem                #
# shortq: 40 cores, 192 GB mem, 2 day timelimit #
# bigmemq: 40 cores, 768-1536 GB mem            #
# gpuq: 40 cores, 192 GB mem, 2 v100 GPUs       #
#################################################
# --time=[DAYS]-[HOURS]:[MINUTES]:[SECONDS]     #
#-----------------------------------------------#
# Total time you allocate for your job. It will #
# be killed after this time. If you need an     #
# extension contact hpcadmins@memphis.edu       #
#################################################
# --job-name=[JOBNAME]                          #
#-----------------------------------------------#
# Your jobname when you run 'squeue'.           #
#################################################
# --mail-user=[USERNAME]@memphis.edu            #
#-----------------------------------------------#
# It will mail you with certain statuses.       #
#################################################
# --mail-type=[MAIL_OPTIONS]                    #
# --output=[STDOUT].out                         #
# --error=[STDERR].err                          #
#-----------------------------------------------#
# Run 'man sbatch' to see options.              #
#################################################
# --mem-per-cpu=[MEMORY_NEEDED_FOR_JOB]         #
#-----------------------------------------------#
# Default is 1024. It is in megabytes (MB). If  #
# you need more, put it here. If you job fails  #
# check [STDERR].err to confirm that it was out #
# of memory. This is per CPU.                   #
#################################################



#################################################
# SLURM_SUBMIT_DIR                              #
#-----------------------------------------------#
# Usually you want to go to the directory       #
# that 'sbatch slurmSubmitSerial.sh' was called.#
# SLURM_SUBMIT_DIR is an environment variable   #
# that defines that directory. Otherwise, HOME  #
# is default (/home/[USERNAME]/).               #
#################################################
cd $SLURM_SUBMIT_DIR

 
#################################################
# modules                                       #
#-----------------------------------------------#
# Any modules you need can be found with        #
# 'module avail'. If you compile something with #
# a particular compiler using a module, you     #
# probably want to call that module here.       #
#################################################
#module load [MODULE]

 
#################################################
# SLURM_JOB_ID                                  #
#-----------------------------------------------#
# You can use SLURM_JOB_ID environment variable #
# to get the current jobId.                     #
#'squeue -u [USERNAME]' lists user jobs with    #
# jobId in the left column.                     #
#################################################
echo "$SLURM_JOB_ID"


#################################################
# Run your executable here. You could use       #
# $SLURM_ARRAY_TASK_ID to index files, values,  #
# or arguments for your executable.             #
#################################################
#[EXECUTABLE] [OPTIONS]
echo "Task Id: $SLURM_ARRAY_TASK_ID of $SLURM_ARRAY_TASK_COUNT"

#################################################
# value array indexing using:                   #
# --array=0-2                                   #
#################################################
val=( 99.7 102.3 97.1 )
echo "Station: ${val[$SLURM_ARRAY_TASK_ID]}"

#################################################
# file indexing using:                          #
# --array=0-2                                   #
#################################################
echo "First" > file_0.txt
echo "Second" > file_1.txt
echo "Third" > file_2.txt

cat file_${SLURM_ARRAY_TASK_ID}.txt