source: palm/trunk/SOURCE/local_tremain_ini.f90 @ 1683

Last change on this file since 1683 was 1683, checked in by knoop, 6 years ago

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1!> @file local_tremain_ini.f90
2!--------------------------------------------------------------------------------!
3! This file is part of PALM.
4!
5! PALM is free software: you can redistribute it and/or modify it under the terms
6! of the GNU General Public License as published by the Free Software Foundation,
7! either version 3 of the License, or (at your option) any later version.
8!
9! PALM is distributed in the hope that it will be useful, but WITHOUT ANY
10! WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
11! A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
12!
13! You should have received a copy of the GNU General Public License along with
14! PALM. If not, see <http://www.gnu.org/licenses/>.
15!
16! Copyright 1997-2014 Leibniz Universitaet Hannover
17!--------------------------------------------------------------------------------!
18!
19! Current revisions:
20! -----------------
21!
22!
23! Former revisions:
24! -----------------
25! $Id: local_tremain_ini.f90 1683 2015-10-07 23:57:51Z knoop $
26!
27! 1682 2015-10-07 23:56:08Z knoop
28! Code annotations made doxygen readable
29!
30! 1322 2014-03-20 16:38:49Z raasch
31! REAL constants defined as wp_kind
32!
33! 1320 2014-03-20 08:40:49Z raasch
34! ONLY-attribute added to USE-statements,
35! kind-parameters added to all INTEGER and REAL declaration statements,
36! kinds are defined in new module kinds,
37! revision history before 2012 removed,
38! comment fields (!:) to be used for variable explanations added to
39! all variable declaration statements
40!
41! 1092 2013-02-02 11:24:22Z raasch
42! unused variables removed
43!
44! 1036 2012-10-22 13:43:42Z raasch
45! code put under GPL (PALM 3.9)
46!
47! Revision 1.1  1998/03/18 20:15:05  raasch
48! Initial revision
49!
50!
51! Description:
52! ------------
53!> Initialization of CPU-time measurements for different operating systems
54!------------------------------------------------------------------------------!
55 SUBROUTINE local_tremain_ini
56 
57     
58    USE cpulog,                                                                &
59        ONLY:  initial_wallclock_time
60       
61    USE kinds
62
63    IMPLICIT NONE
64
65#if defined( __ibm )
66    INTEGER(idp)     ::  IRTC       !<
67#elif defined( __lc )
68    INTEGER(idp)     ::  count      !<
69    INTEGER(idp)     ::  count_rate !<
70#endif
71
72
73!
74!-- Get initial wall clock time
75#if defined( __ibm )
76
77    initial_wallclock_time = IRTC( ) * 1E-9_wp
78
79#elif defined( __lc )
80
81    CALL SYSTEM_CLOCK( count, count_rate )
82    initial_wallclock_time = REAL( count, KIND=wp ) / REAL( count_rate, KIND=wp )
83
84#else
85!
86!-- So far, nothing is done on these machines
87#endif
88
89
90 END SUBROUTINE local_tremain_ini
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