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New Member
Anh Dinh Le
Join Date: Apr 2020
Posts: 24
Rep Power: 6 ![]() |
Dear experts,
My PC have two cpu xeon e5-2678v3, 12 cores/24 thread each cpu (total 24core/48 threads) I submitted slurm batch job that request multicores for my code (fortran code with intel fortran compiler in linux) I checked both serial and openMP run using the same slurm batch job file above; the same result and same calculation speed resulted. Please tell me how to use all 2 CPU to run the code, and how to know that the code running in 1cpu or 2 cpus? The first job file, system run with all 48 threads: #!/bin/sh #PBS -N Ogive #PBS -o output #PBS -j oe #PBS -l ncpus=2 cd <directory> time ./2D-TFlow2Wall-MCM-HKO The second job file, systems run with 20 threads #!/bin/bash #SBATCH --job-name=testOMP #SBATCH --nodes=1 #SBATCH --ntasks-per-node=1 #SBATCH --cpus-per-task=20 #SBATCH --exclusive #SBATCH --time=0-20:00:00 export OMP_NUM_THREADS=${SLURM_CPUS_PER_TASK} time ./2D-test Last edited by AnhDL; May 19, 2020 at 00:29. |
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