Make system info reporting number of CPU sockets

benchmark/foundation/system_info.py

@@ -56,6 +56,23 @@ def getBlenderVersion(ctx):
     return info
 
 
+def getNumPhysicalCPUs_Linux():
+    ids = set()
+    with open("/proc/cpuinfo") as f:
+        for line in f.readlines():
+            if line.startswith("physical id"):
+                id = int(line.split(":", 1)[1])
+                ids.add(id)
+    return len(ids)
+
+
+def getNumPhysicalCPUs():
+    if sys.platform == 'linux':
+        return getNumPhysicalCPUs_Linux()
+    else:
+        raise Exception("Needs implementation")
+
+
 def gatherSystemInfo(ctx):
     system_info = {}
     system_info['bitness'] = platform.architecture()[0]
@@ -71,6 +88,7 @@ def gatherSystemInfo(ctx):
     system_info['cpu_brand'] = cpu_info['brand']
     system_info["num_cpu_cores"] = psutil.cpu_count(logical=False)
     system_info["num_cpu_threads"] = psutil.cpu_count(logical=True)
+    system_info["num_cpu_sockets"] = getNumPhysicalCPUs()
     system_info['devices'] = _getBlenderDeviceInfo(ctx)
     # TODO(sergey): query number of CPUs and threads.
     return system_info