MOLECULAR DYNAMICS PERFORMANCE GUIDE - Digital Research Alliance of CANADA

BENCHMARK DETAILS

ID=248

  • Dataset: 6n4o
  • Software: GROMACS.mpi (gromacs/2024.4-gofb-2023a-avx512)
  • Resource: 96 tasks, 1 cores, nodes, 0 GPUs, no NVLink
  • CPU: EPYC 9654 (Genoa), 2.4 GHz
  • GPU: None
  • Simulation speed: 38.542 ns/day
  • Efficiency: 45.8 %
  • Site: Rorqual
  • Date: July 31, 2025, 9:22 p.m.
  • Submission script:
    #!/bin/bash
    #SBATCH --mem-per-cpu=2000 --time=1:0:0 -c1 --ntasks=96--nodes=1

    export OMP_NUM_THREADS="${SLURM_CPUS_PER_TASK:-1}"
    module load StdEnv/2023 gcc/12.3 openmpi/4.1.5 gromacs/2024.4
    srun gmx_mpi mdrun -s topol.tpr
  • Notes:
  • Simulation input file:
    title                   = benchmark 
    ; Run parameters
    integrator = md
    nsteps = 400000
    dt = 0.001
    ; Output control
    nstxout = 0
    nstvout = 0
    nstfout = 0
    nstenergy = 10000
    nstlog = 10000
    nstxout-compressed = 50000
    compressed-x-grps = System
    ; Bond parameters
    continuation = yes
    constraint_algorithm = lincs
    constraints = h-bonds

    ; Neighborsearching
    cutoff-scheme = Verlet
    ns_type = grid
    nstlist = 10
    rcoulomb = 0.8
    rvdw = 0.8
    DispCorr = Ener ; anaytic VDW correction
    ; Electrostatics
    coulombtype = PME
    pme_order = 4
    fourier-nx = 144
    fourier-ny = 144
    fourier-nz = 144
    ; Temperature coupling is on
    tcoupl = V-rescale
    tc-grps = system
    tau_t = 0.1
    ref_t = 300
    ; Pressure coupling is on
    pcoupl = Parrinello-Rahman
    pcoupltype = isotropic
    tau_p = 2.0
    ref_p = 1.0
    compressibility = 4.5e-5
    ; Periodic boundary conditions
    pbc = xyz
    ; Velocity generation
    gen_vel = no