bin/foamGetSystemInfo

   1 #!/bin/bash
   2 #------------------------------------------------------------------------------
   3 # =========                 |
   4 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   5 #  \\    /   O peration     |
   6 #   \\  /    A nd           | Copyright held by original author
   7 #    \\/     M anipulation  |
   8 #------------------------------------------------------------------------------
   9 # License
  10 #     This file is part of OpenFOAM.
  11 #
  12 #     OpenFOAM 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 2 of the License, or (at your
  15 #     option) any later version.
  16 #
  17 #     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
  18 #     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  19 #     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  20 #     for more details.
  21 #
  22 #     You should have received a copy of the GNU General Public License
  23 #     along with OpenFOAM; if not, write to the Free Software Foundation,
  24 #     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  25 #
  26 # Script
  27 #     foamGetSystemInfo
  28 #
  29 # Description
  30 #     return system information about running host/system
  31 #
  32 # Author:
  33 #     Martin Beaudoin, Hydro-Quebec, (2013)
  34 #
  35 #------------------------------------------------------------------------------
  36 usage()
  37 {
  38     while [ "$#" -ge 1 ]; do echo "$1"; shift; done
  39     cat<<USAGE
  40
  41 usage: ${0##*/} [OPTION]
  42 options:
  43   -nbrCores  return the number of cores present
  44   -osInfo [default] return operating system information
  45
  46 * return system information about the running host/system.
  47
  48 USAGE
  49     exit 1
  50 }
  51
  52 # Basic operating system information
  53 getOperatingSystemInfo()
  54 {
  55     echo `uname -a`
  56 }
  57
  58 # Number of cores
  59 getNbrCores()
  60 {
  61     # Minimal number of cores. Can be as low as 1 on virtual machines
  62     nbrCores=1
  63
  64     # First choice above all: using lstopo from the hwloc package
  65     if command -v lstopo >/dev/null; then
  66         nbrCores=`lstopo --of console | grep -c Core`
  67     else
  68         # Using some architecture specific heuristics
  69     case `uname -s` in
  70         Linux)
  71             # Warning: this will be wrong if Hyperthreading is enable
  72             nbrCores=`grep -c processor /proc/cpuinfo`
  73         ;;
  74         Darwin)
  75             nbrCores=`sysctl -n hw.physicalcpu`
  76         ;;
  77     esac
  78     fi
  79     echo $nbrCores
  80 }
  81
  82 # If no options present, return basic information on operating system
  83 if [ "$#" -eq 0 ]
  84 then
  85     getOperatingSystemInfo
  86     exit
  87 fi
  88
  89 # parse options
  90 while [ "$#" -gt 0 ]
  91 do
  92     case "$1" in
  93     -h | -help)
  94         usage
  95         ;;
  96     -osInfo)
  97         getOperatingSystemInfo
  98         shift
  99         ;;
 100     -nbrCores)
 101         getNbrCores
 102         shift
 103         ;;
 104     *)
 105         usage "unknown option/argument: '$*'"
 106         ;;
 107     esac
 108 done
 109
 110
 111 #------------------------------------------------------------------------------