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vasp [2020/02/17 21:22] rootvasp [2025/10/15 19:51] (current) – external edit 127.0.0.1
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 module load intel/19.0.5 mkl/19.0.5 impi/19.0.5 module load intel/19.0.5 mkl/19.0.5 impi/19.0.5
 mpirun -np 16 -genv OMP_NUM_THREADS=2 /scrfs/apps/vasp/vasp.5.4.4/build/std/vasp.O2.smkl mpirun -np 16 -genv OMP_NUM_THREADS=2 /scrfs/apps/vasp/vasp.5.4.4/build/std/vasp.O2.smkl
-took 75 seconds on Trestles, 35 seconds on Razor 16-core (with OMP_NUM_THREADS=1)**, 24 seconds on Pinnacle.+took 75 seconds on Trestles, 35 seconds on Razor 16-core (with OMP_NUM_THREADS=1)**, 27.3 seconds on Pinnacle. 
 +vasp.o2.smkl took 26.1 seconds on Pinnacle.
 </code> </code>
 **For performance MPI threads x OpenMP threads should not exceed physical cores. **For performance MPI threads x OpenMP threads should not exceed physical cores.
-Parallel MKL and -O3 didn't help performance. 
  
  
  
vasp.1581974549.txt.gz · Last modified: (external edit)