Oar properties pyxis
On pyxis: all cpuset ids (of all threads) a grouped by CPU:
- CPU0: 0-127
- CPU1: 128-255
Among a CPU, threads are given in round robin:
- CPU0: 0,32,64,96 -> 31,63,95,127
- CPU1: 128,160,192,224 -> 159,191,223,255
So looking at the first thread of each core, this gives 2 groups:
- CPU0: 0-31
- CPU1: 128-159 Thus a gap between the 2.
So the new formula to give the first thread id of each core is the
following: row[:cpuset] = cpu_num * cpu_thread_count + core_num