Hello all!
I have managed to successfully run mp_linpack on my cluster with hyperthreading disabled. All cores were running at 100%.
I want to experiment and run with hyperthreading enabled. The runme_intel64 seems to run the threads only on physical cores.
I was looking through the Intel MPI reference guide and I tried a few parameters, but they didn't help. Anyone have any idea?
I have tried to put these lines in runme_intel64:
export I_MPI_PIN=on
export I_MPI_PIN_CELL=unit
export I_MPI_PIN_DOMAIN=auto
Whatever it is, it just seems like there is a default setting used by the runme_intel64 or mp_linpack intel binary to run on only physical cores.
Any help is appreciated!
Cheers!
Simon.