when I tried to alloc some memory on setonix, with script: #!/bin/bash #SBATCH --nodes=1 #SBTACH --ntasks=28 #SBATCH --partition=work #SBATCH --account=courses0101 #SBATCH --mem=200G export OMP_SCHEDULE="static,3125" gcc -m64 -fopenmp -o project ./project.c srun ./project I tried: -mem=200G, 120G and 100G. my program just call one function: int* generate_sparse_matrix(int* maxNonZero, double probability){ int* matrix = alloc_matrix(ROW_NUM,COLUMN_NUM); int* maxValues = malloc(sizeof(int) * ROW_NUM); return; } If I run this program with the script , it is fine. however if I add openmp paralel: like: int* generate_sparse_matrix(int* maxNonZero, double probability){ int* matrix = alloc_matrix(ROW_NUM,COLUMN_NUM); int* maxValues = malloc(sizeof(int) * ROW_NUM); omp_set_num_threads(GENERATE_THREAD_NUM); #pragma omp parallel { //operations without allocate memory } } then it gives a hint: slurmstepd: error: Detected 1 oom_kill event in StepId=15608085.0. Some of the step tasks have been OOM Killed. srun: error: nid002280: task 0: Out Of Memory srun: Terminating StepId=15608085.0 GENERATE_THREAD_NUM = 1. Is there any clue about this issue? Btw, I always feel the setonix doesn't give us really enough resource for calculating or memroy.