Bug11327 - add optional cores_affinity definition to force cores<->GPU allocation

data/grid5000/sites/nancy/clusters/grue/nodes/grue-1.json

@@ -19,6 +19,7 @@
   },
   "gpu_devices": {
     "nvidia0": {
+      "cores_affinity": "0 16 8 24 4 20 12 28",
       "cpu_affinity": 0,
       "device": "/dev/nvidia0",
       "memory": 15079000000,
@@ -28,6 +29,7 @@
       "vendor": "Nvidia"
     },
     "nvidia1": {
+      "cores_affinity": "2 18 10 26 6 22 14 30",
       "cpu_affinity": 0,
       "device": "/dev/nvidia1",
       "memory": 15079000000,
@@ -37,6 +39,7 @@
       "vendor": "Nvidia"
     },
     "nvidia2": {
+      "cores_affinity": "1 17 9 25 7 23 15 31",
       "cpu_affinity": 1,
       "device": "/dev/nvidia2",
       "memory": 15079000000,
@@ -46,6 +49,7 @@
       "vendor": "Nvidia"
     },
     "nvidia3": {
+      "cores_affinity": "3 19 11 27 5 21 13 29",
       "cpu_affinity": 1,
       "device": "/dev/nvidia3",
       "memory": 15079000000,