Re: [OMPI users] mkl threaded works in serail but not in parallel

mance of one */ > > > mpirun --bind-to none ... > > will tell Open MPI *not* to bind on one core, and that should help a bit. > > note this is suboptimal, you should really ask mpirun to allocate 4 cores per > task, but i cannot remember the correct command line for that > >

[OMPI users] mkl threaded works in serail but not in parallel

Dear openmpi users, Today, I faced a strange problem. I am compiling a quantum chemistry software (CASTEP-16) using intel16, mkl threaded libraries and openmpi-18.1. The compilation works fine. When I ask for MKL_NUM_THREAD=4 and call the program in serial mode (without mpirun), it works perf