source: palm/trunk/SOURCE/mod_kinds.f90 @ 1319

Last change on this file since 1319 was 1319, checked in by raasch, 8 years ago

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1 MODULE kinds
2
3!--------------------------------------------------------------------------------!
4! This file is part of PALM.
5!
6! PALM is free software: you can redistribute it and/or modify it under the terms
7! of the GNU General Public License as published by the Free Software Foundation,
8! either version 3 of the License, or (at your option) any later version.
9!
10! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
11! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
12! A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
13!
14! You should have received a copy of the GNU General Public License along with
15! PALM. If not, see <http://www.gnu.org/licenses/>.
16!
17! Copyright 1997-2014  Leibniz Universitaet Hannover
18!--------------------------------------------------------------------------------!
19!
20! Current revisions:
21! ------------------
22!
23!
24! Former revisions:
25! -----------------
26! $Id: mod_kinds.f90 1319 2014-03-17 15:08:44Z raasch $
27!
28! 1318 2014-03-17 13:35:16Z raasch
29! bugfix: default integer kind changed to single precision
30!
31! 1306 2014-03-13 14:30:59Z raasch
32! Initial revision
33!
34! Description:
35! ------------
36! Standard kind definitions
37! wp (working precision) and iwp (integer working precision) are the kinds
38! used by default in all variable declarations.
39! By default, PALM is using wp = dp (64bit), and iwp = isp (32bit).
40! If you like to switch to other precision, then please set wp/iwp
41! appropriately by assigning other kinds below.
42!------------------------------------------------------------------------------!
43
44    IMPLICIT NONE
45
46!
47!-- Floating point kinds
48    INTEGER, PARAMETER ::  sp = 4           ! single precision (32 bit)
49    INTEGER, PARAMETER ::  dp = 8           ! double precision (64 bit)
50
51!
52!-- Integer kinds
53    INTEGER, PARAMETER ::  isp = SELECTED_INT_KIND(  9 )   ! single precision (32 bit)
54    INTEGER, PARAMETER ::  idp = SELECTED_INT_KIND( 14 )   ! double precision (64 bit)
55
56!
57!-- Set kinds to be used as defaults
58    INTEGER, PARAMETER ::   wp =  dp          ! default real kind
59    INTEGER, PARAMETER ::  iwp = isp          ! default integer kind
60
61    SAVE
62
63 END MODULE kinds
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