adding arch.py to contrib/TACC

contrib/TACC/arch.py

@@ -0,0 +1,74 @@
+#!/bin/sh
+# -*- python -*-
+
+################################################################################
+# This file is python bilingual: The next line starts a comment in Python,
+# and is a no-op in shell
+""":"
+# Find a suitable python interpreter (adapt for your specific needs) 
+for cmd in python3 python python2; do
+   command -v > /dev/null $cmd && exec $cmd $0 "$@"
+done
+
+echo "Error: Could not find a valid python interpreter --> exiting!"  >&2
+exit 2
+":"""
+################################################################################
+
+# This program reports the (uname -m) and cpu family and the model from /proc/cpuinfo
+# On chips that support AVX2 the model is replaced with "avx2".
+
+# Robert McLay 2016-08-11 12:33
+
+
+
+from __future__ import print_function
+import os, sys, re, platform
+
+def main():
+  osName       = platform.system()
+  machName     = platform.machine()
+  machDescript = ""
+  cpuFamily    = False
+  model        = False
+
+  if (osName == "Linux" and machName == "x86_64"):
+    f = open("/proc/cpuinfo","r")
+
+    count = 0
+    avx2  = False
+    for line in f:
+      if (line.find("cpu family") != -1):
+        A         = re.findall(r'\d+',line)
+        cpuFamily = "%02x" %( int(A[0]) )
+        count    += 1
+      elif (line.find("model name") != -1):
+        A            = re.findall(r'.*: *(.*)',line)
+        machDescript = A[0]
+        count       += 1
+      elif (line.find("model") != -1):
+        A      = re.findall(r'.*: *(.*)',line)
+        model  = "%02x" % ( int(A[0]) ) 
+        count += 1
+      elif (line.find("flags") != -1):
+        A       = re.findall(r'.*: *(.*)',line)
+        flagStr = A[0]
+        if (flagStr.find("avx2") != -1):
+          model = "avx2"
+        count += 1
+      if (count > 3):
+        break
+
+    f.close()
+  A = []
+  A.append(machName)
+  if (cpuFamily):
+    A.append(cpuFamily)
+  if (model):
+    A.append(model)
+
+  machName = "_".join(A)
+  print(machName)
+
+
+if ( __name__ == '__main__'): main()