slurmstepd: error: Detected 1 oom_kill event in StepId=11300781.0.

[thalesChagas]

Hello, my name is Vieira.
I am having difficulty executing a calculation but it gives me the error slurmstepd: error: Detected 1 oom_kill event in StepId=11300781.0. Some of the step tasks have been OOM Killed. srun: error: sdumont6156: task 0: Out Of Memory, how do I remove this error, here is my executor file:
#!/bin/bash
#SBATCH --nodes=4 #Number of Nodes
#SBATCH --ntasks-per-node=16 #Number of tasks per Node
#SBATCH --ntasks=64 #Total number of MPI tasks
#SBATCH -p sequana_cpu_dev #Queue (partition) to be used
#SBATCH -J qe_test #Job name
#SBATCH --time=744:00:00 #duration time
#SBATCH --mem=64Gb

#Display the nodes allocated to the Job
echo $SLURM_JOB_NODELIST
nodeset -e $SLURM_JOB_NODELIST

cd $SLURM_SUBMIT_DIR

#Configure compilers
#------------------------#

2) Using OpenMPI with Intel

module load quantum-espresso/7.3_+cuda-11.1+intel_2020_sequana
#Configure the executable
EXEC=/scratch/app/quantum-espresso/7.3+cuda-11.1_intel_sequana/bin/pw.x