bin/foamGetSystemInfo

   1 #!/bin/bash
   2 #------------------------------------------------------------------------------
   3 # =========                 |
   4 # \\      /  F ield         | foam-extend: Open Source CFD
   5 #  \\    /   O peration     |
   6 #   \\  /    A nd           | For copyright notice see file Copyright
   7 #    \\/     M anipulation  |
   8 #------------------------------------------------------------------------------
   9 # License
  10 #     This file is part of foam-extend.
  11 #
  12 #     foam-extend is free software: you can redistribute it and/or modify it
  13 #     under the terms of the GNU General Public License as published by the
  14 #     Free Software Foundation, either version 3 of the License, or (at your
  15 #     option) any later version.
  16 #
  17 #     foam-extend is distributed in the hope that it will be useful, but
  18 #     WITHOUT ANY WARRANTY; without even the implied warranty of
  19 #     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20 #     General Public License for more details.
  21 #
  22 #     You should have received a copy of the GNU General Public License
  23 #     along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
  24 #
  25 # Script
  26 #     foamGetSystemInfo
  27 #
  28 # Description
  29 #     return system information about running host/system
  30 #
  31 # Author:
  32 #     Martin Beaudoin, Hydro-Quebec, (2013)
  33 #
  34 #------------------------------------------------------------------------------
  35 usage()
  36 {
  37     while [ "$#" -ge 1 ]; do echo "$1"; shift; done
  38     cat<<USAGE
  39
  40 usage: ${0##*/} [OPTION]
  41 options:
  42   -nbrCores  return the number of cores present
  43   -osInfo [default] return operating system information
  44
  45 * return system information about the running host/system.
  46
  47 USAGE
  48     exit 1
  49 }
  50
  51 # Basic operating system information
  52 getOperatingSystemInfo()
  53 {
  54     echo `uname -a`
  55 }
  56
  57 # Number of cores
  58 getNbrCores()
  59 {
  60     # Minimal number of cores. Can be as low as 1 on virtual machines
  61     nbrCores=1
  62
  63     # First choice above all: using lstopo from the hwloc package
  64     if command -v lstopo >/dev/null; then
  65         nbrCores=`lstopo --of console | grep -c Core`
  66     else
  67         # Using some architecture specific heuristics
  68     case `uname -s` in
  69         Linux)
  70             # Warning: this will be wrong if Hyperthreading is enable
  71             nbrCores=`grep -c processor /proc/cpuinfo`
  72         ;;
  73         Darwin)
  74             nbrCores=`sysctl -n hw.physicalcpu`
  75         ;;
  76     esac
  77     fi
  78     echo $nbrCores
  79 }
  80
  81 # If no options present, return basic information on operating system
  82 if [ "$#" -eq 0 ]
  83 then
  84     getOperatingSystemInfo
  85     exit
  86 fi
  87
  88 # parse options
  89 while [ "$#" -gt 0 ]
  90 do
  91     case "$1" in
  92     -h | -help)
  93         usage
  94         ;;
  95     -osInfo)
  96         getOperatingSystemInfo
  97         shift
  98         ;;
  99     -nbrCores)
 100         getNbrCores
 101         shift
 102         ;;
 103     *)
 104         usage "unknown option/argument: '$*'"
 105         ;;
 106     esac
 107 done
 108
 109
 110 #------------------------------------------------------------------------------