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Automatic Parallelization - same execution time with different number of threads

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Hi all

I am doing some experiment on auto-parallelization tools on NAS benchmark, by using Intel icc V18 (FLAGS : -parallel -g -O2 ), even by changing the number of threads (export OMP_NUM_THREADS=4, 8 or 16) always I got the same execution time (it happened for all NAS benchmarks and not just for some of them) !!!

should I use any additional flag ???

 

Thanks


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