Define domains through the comma separated list of hexadecimal numbers for each MPI rank.
> A comma-separated list of hexadecimal numbers.
, each mi is a hexadecimal bit mask defining an individual domain.
The following rule is used: the i-th base unit is included into the domain if the corresponding bit in mi value is set to 1.
Set this variable to define the list of hexadecimal bit masks. For the i-th bit mask, if the j-th bit set to 1, then the j-th base unit will be pinned to the i-th MPI rank.
I_MPI_OFFLOAD_CELL variable defines the base unit: tile or device.
I_MPI_OFFLOAD_DOMAIN variable has higher priority than the I_MPI_OFFLOAD_DEVICE_LIST.
Figure 7. Four MPI ranks, I_MPI_OFFLOAD_DOMAIN=[B,2,5,C]. Parsed bit masks: [1101,0100,1010,0011]