thank you!
mpirun --bind-to none ...
gives what I need:
echo " run 1 " ; export OMP_NUM_THREADS=1 ; time mpirun -np 1 --bind-to
none a.out ; echo " run 2 " ; export OMP_NUM_THREADS=2 ; time
mpirun -np 1 --bind-to none a.out
run 1
0 0
0 0
real0m43.593s
user0m43.282s
sys0m0
Hello!
I have a problem with the hybrid MPI/OpenMP C++ code, which does not
produce acceleration in OpenMP mode at the local, 4th-core home computer.
Open MPI loaded from www.open-mpi.org/
mpirun -V
mpirun (Open MPI) 1.8.1.
Compiled from the source.
Ubuntu 14.04
// ===
//main.c
#include
