source: palm/trunk/SOURCE/mod_kinds.f90 @ 4360

Last change on this file since 4360 was 4360, checked in by suehring, 17 months ago

Bugfix in output of time-averaged plant-canopy quanities; Output of plant-canopy data only where tall canopy is defined; land-surface model: fix wrong location strings; tests: update urban test case; all source code files: copyright update

  • Property svn:keywords set to Id
File size: 2.4 KB
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1!> @file mod_kinds.f90
2!------------------------------------------------------------------------------!
3! This file is part of the PALM model system.
4!
5! PALM is free software: you can redistribute it and/or modify it under the
6! terms of the GNU General Public License as published by the Free Software
7! Foundation, either version 3 of the License, or (at your option) any later
8! 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 1997-2020 Leibniz Universitaet Hannover
18!------------------------------------------------------------------------------!
19!
20! Current revisions:
21! ------------------
22!
23!
24! Former revisions:
25! -----------------
26! $Id: mod_kinds.f90 4360 2020-01-07 11:25:50Z suehring $
27! Corrected "Former revisions" section
28!
29! 4000 2019-05-24 07:20:44Z raasch
30! preprocessor switch added for choosing the real precision
31!
32! 3655 2019-01-07 16:51:22Z knoop
33! Corrected "Former revisions" section
34!
35! 1306 2014-03-13 14:30:59Z raasch
36! Initial revision
37!
38! Description:
39! ------------
40!> Standard kind definitions
41!> wp (working precision) and iwp (integer working precision) are the kinds
42!> used by default in all variable declarations.
43!> By default, PALM is using wp = dp (64bit), and iwp = isp (32bit).
44!> If you like to switch to other precision, then please set wp/iwp
45!> appropriately by assigning other kinds below.
46!------------------------------------------------------------------------------!
47 MODULE kinds
48 
49
50    IMPLICIT NONE
51
52!
53!-- Floating point kinds
54    INTEGER, PARAMETER ::  sp = 4           !< single precision (32 bit)
55    INTEGER, PARAMETER ::  dp = 8           !< double precision (64 bit)
56
57!
58!-- Integer kinds
59    INTEGER, PARAMETER ::  isp = SELECTED_INT_KIND(  9 )   !< single precision (32 bit)
60    INTEGER, PARAMETER ::  idp = SELECTED_INT_KIND( 14 )   !< double precision (64 bit)
61
62!
63!-- Set kinds to be used as defaults
64#if defined( __single_precision )
65    INTEGER, PARAMETER ::   wp =  sp          !< default real kind
66#else
67    INTEGER, PARAMETER ::   wp =  dp          !< default real kind
68#endif
69    INTEGER, PARAMETER ::  iwp = isp          !< default integer kind
70
71    SAVE
72
73 END MODULE kinds
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