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source: palm/trunk/SOURCE/cpulog_mod.f90 @ 2965

Last change on this file since 2965 was 2932, checked in by maronga, 7 years ago
renamed all Fortran NAMELISTS
Property svn:keywords set to `Id`
File size: 22.1 KB

Rev	Line
[1850]	1	!> @file cpulog_mod.f90
[2000]	2	!------------------------------------------------------------------------------!
[2696]	3	! This file is part of the PALM model system.
[1036]	4	!
[2000]	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.
[1036]	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	!
[2718]	17	! Copyright 1997-2018 Leibniz Universitaet Hannover
[2000]	18	!------------------------------------------------------------------------------!
[1036]	19	!
[254]	20	! Current revisions:
[1]	21	! -----------------
[1403]	22	!
[2119]	23	!
[1321]	24	! Former revisions:
	25	! -----------------
	26	! $Id: cpulog_mod.f90 2932 2018-03-26 09:39:22Z scharf $
[2932]	27	! renamed d3par to runtime_parameters
	28	!
	29	! 2718 2018-01-02 08:49:38Z maronga
[2716]	30	! Corrected "Former revisions" section
	31	!
	32	! 2696 2017-12-14 17:12:51Z kanani
	33	! Change in file header (GPL part)
	34	!
	35	! 2266 2017-06-09 09:27:21Z raasch
[2266]	36	! bugfix: cpu-time per grid point is now calculated using ngp_3d in order to
	37	! avoid integer overflow,
	38	! some re-formatting
	39	!
	40	! 2119 2017-01-17 16:51:50Z raasch
[1321]	41	!
[2119]	42	! 2118 2017-01-17 16:38:49Z raasch
	43	! OpenACC relevant code removed
	44	!
[2001]	45	! 2000 2016-08-20 18:09:15Z knoop
	46	! Forced header and separation lines into 80 columns
	47	!
[1932]	48	! 1931 2016-06-10 12:06:59Z suehring
	49	! Adjustment in character length and format statement
	50	!
[1851]	51	! 1850 2016-04-08 13:29:27Z maronga
	52	! Module renamed
	53	!
	54	!
[1809]	55	! 1808 2016-04-05 19:44:00Z raasch
	56	! cpu measurements are done with standard FORTRAN routine on every machine
	57	!
[1683]	58	! 1682 2015-10-07 23:56:08Z knoop
	59	! Code annotations made doxygen readable
	60	!
[1403]	61	! 1402 2014-05-09 14:25:13Z raasch
	62	! location messages added
	63	!
[1370]	64	! 1369 2014-04-24 05:57:38Z raasch
	65	! routine description added
	66	!
[1354]	67	! 1353 2014-04-08 15:21:23Z heinze
	68	! REAL constants provided with KIND-attribute
	69	!
[1323]	70	! 1322 2014-03-20 16:38:49Z raasch
	71	! REAL functions provided with KIND-attribute
	72	!
[1321]	73	! 1320 2014-03-20 08:40:49Z raasch
[1320]	74	! ONLY-attribute added to USE-statements,
	75	! kind-parameters added to all INTEGER and REAL declaration statements,
	76	! kinds are defined in new module kinds,
	77	! revision history before 2012 removed,
	78	! comment fields (!:) to be used for variable explanations added to
	79	! all variable declaration statements
[1321]	80	!
[1319]	81	! 1318 2014-03-17 13:35:16Z raasch
	82	! former files/routines cpu_log and cpu_statistics combined to one module,
	83	! which also includes the former data module cpulog from the modules-file
	84	!
[1037]	85	! 1036 2012-10-22 13:43:42Z raasch
	86	! code put under GPL (PALM 3.9)
	87	!
[1]	88	! Revision 1.1 1997/07/24 11:12:29 raasch
	89	! Initial revision
	90	!
	91	!
	92	! Description:
	93	! ------------
[1682]	94	!> CPU-time measurements for any program part whatever. Results of the
	95	!> measurements are output at the end of the run in local file CPU_MEASURES.
	96	!>
	97	!> To measure the CPU-time (better to say the wallclock time) of a specific code
	98	!> segment, two calls of cpu_log have to be used as brackets in front and at the
	99	!> end of the segment:
	100	!>
	101	!> CALL cpu_log( log_point(n), 'any identifier', 'start' )
	102	!> ... code segment ...
	103	!> CALL cpu_log( log_point(n), 'any identifier', 'stop' )
	104	!>
	105	!> Parts of the code segment can be excluded from the measurement by additional
	106	!> call of cpu_log:
	107	!>
	108	!> ... first segment to be measured
	109	!> CALL cpu_log( log_point(n), 'any identifier', 'pause' )
	110	!> ... oart of segment to be excluded from measurement
	111	!> CALL cpu_log( log_point(n), 'any identifier', 'continue' )
	112	!> ... second segment to be mesasured
	113	!>
	114	!> n is an INTEGER within the interval [1,100] defining the id of the specific
	115	!> code segment, 'any identifier' is a string describing the code segment to be
	116	!> measured. It can be freely chosen and results will appear under this name in
	117	!> file CPU_MEASURES. ids can only be used once. If you like to do a
	118	!> measurement of a new part of the code, please look for an id which is unused
	119	!> ao far.
	120	!>
[2932]	121	!> runtime_parameters-parameter cpu_log_barrierwait can be used to set an MPI
	122	!> barrier at the beginning of the measurement (modus 'start' or 'continue'),
	123	!> to avoid that idle times (due to MPI calls in the code segment, which are
[1682]	124	!> waiting for other processes to be finished) affect the measurements.
	125	!> If barriers shall not be used at all, a fourth, optional parameter has to be
	126	!> given:
	127	!>
	128	!> CALL cpu_log( ..., ..., 'start', cpu_log_nowait )
	129	!>
	130	!> Variable log_point should be used for non-overlapping code segments, and they
	131	!> should sum up to the total cpu-time required by the complete run.
	132	!> Variable log_point_s can be used for any other special (s) measurements.
[3]	133	!------------------------------------------------------------------------------!
[1682]	134	MODULE cpulog
	135
[1]	136
[1320]	137	USE control_parameters, &
	138	ONLY: message_string, nr_timesteps_this_run, run_description_header, &
	139	synchronous_exchange
	140
	141	USE indices, &
[2266]	142	ONLY: ngp_3d, nx, ny, nz
[1320]	143
	144	USE kinds
	145
[1]	146	USE pegrid
	147
	148	IMPLICIT NONE
	149
[1318]	150	PRIVATE
[1320]	151	PUBLIC cpu_log, cpu_log_barrierwait, cpu_log_nowait, cpu_statistics, &
[1318]	152	initial_wallclock_time, log_point, log_point_s
[1]	153
[1318]	154	INTERFACE cpu_log
	155	MODULE PROCEDURE cpu_log
	156	END INTERFACE cpu_log
	157
	158	INTERFACE cpu_statistics
	159	MODULE PROCEDURE cpu_statistics
	160	END INTERFACE cpu_statistics
	161
[1682]	162	INTEGER(iwp), PARAMETER :: cpu_log_continue = 0 !<
	163	INTEGER(iwp), PARAMETER :: cpu_log_pause = 1 !<
	164	INTEGER(iwp), PARAMETER :: cpu_log_start = 2 !<
	165	INTEGER(iwp), PARAMETER :: cpu_log_stop = 3 !<
[1318]	166
[1682]	167	LOGICAL :: cpu_log_barrierwait = .FALSE. !<
	168	LOGICAL, PARAMETER :: cpu_log_nowait = .FALSE. !<
[1318]	169
[1682]	170	REAL(wp) :: initial_wallclock_time !<
[1318]	171
	172	TYPE logpoint
[1682]	173	REAL(wp) :: isum !<
	174	REAL(wp) :: ivect !<
	175	REAL(wp) :: mean !<
	176	REAL(wp) :: mtime !<
	177	REAL(wp) :: mtimevec !<
	178	REAL(wp) :: sum !<
	179	REAL(wp) :: vector !<
	180	INTEGER(iwp) :: counts !<
[1931]	181	CHARACTER (LEN=25) :: place !<
[1318]	182	END TYPE logpoint
	183
[1353]	184	TYPE(logpoint), DIMENSION(100) :: log_point = logpoint( 0.0_wp, 0.0_wp, &
	185	0.0_wp, 0.0_wp, 0.0_wp, 0.0_wp, 0.0_wp, &
	186	0, ' ' ), &
	187	log_point_s = logpoint( 0.0_wp, 0.0_wp, &
	188	0.0_wp, 0.0_wp, 0.0_wp, 0.0_wp, 0.0_wp, &
	189	0, ' ' )
[1318]	190
	191	SAVE
	192
	193	CONTAINS
	194
[1682]	195	!------------------------------------------------------------------------------!
	196	! Description:
	197	! ------------
	198	!> @todo Missing subroutine description.
	199	!------------------------------------------------------------------------------!
[1318]	200	SUBROUTINE cpu_log( log_event, place, modus, barrierwait )
	201
	202	IMPLICIT NONE
	203
[1682]	204	CHARACTER (LEN=*) :: modus !<
	205	CHARACTER (LEN=*) :: place !<
[1320]	206
[1682]	207	LOGICAL :: wait_allowed !<
	208	LOGICAL, OPTIONAL :: barrierwait !<
	209	LOGICAL, SAVE :: first = .TRUE. !<
[1320]	210
[1682]	211	REAL(wp) :: mtime = 0.0_wp !<
	212	REAL(wp) :: mtimevec = 0.0_wp !<
	213	TYPE(logpoint) :: log_event !<
[1318]	214
[1682]	215	INTEGER(idp) :: count !<
	216	INTEGER(idp) :: count_rate !<
[1]	217
	218
	219	!
[1318]	220	!-- Initialize and check, respectively, point of measurement
	221	IF ( log_event%place == ' ' ) THEN
	222	log_event%place = place
	223	ELSEIF ( log_event%place /= place ) THEN
[1320]	224	WRITE( message_string, * ) 'wrong argument & expected: ', &
[1318]	225	TRIM(log_event%place), ' given: ', TRIM( place )
	226	CALL message( 'cpu_log', 'PA0174', 1, 2, 0, 6, 0 )
	227	ENDIF
[1]	228
	229	!
[1318]	230	!-- Determine, if barriers are allowed to set
	231	IF ( PRESENT( barrierwait ) ) THEN
	232	wait_allowed = barrierwait
	233	ELSE
	234	wait_allowed = .TRUE.
	235	ENDIF
	236
	237	!
	238	!-- MPI barrier, if requested, in order to avoid measuring wait times
	239	!-- caused by MPI routines waiting for other MPI routines of other
	240	!-- PEs that have not yet finished
	241	#if defined( __parallel )
[1320]	242	IF ( cpu_log_barrierwait .AND. wait_allowed .AND. &
[1318]	243	( modus == 'start' .OR. modus == 'continue' ) ) THEN
	244	CALL MPI_BARRIER( comm2d, ierr )
	245	ENDIF
	246	#endif
	247
	248	!
	249	!-- Take current time
	250	CALL SYSTEM_CLOCK( count, count_rate )
[1322]	251	mtime = REAL( count, KIND=wp ) / REAL( count_rate, KIND=wp )
[1]	252
	253	!
[1318]	254	!-- Start, stop or pause measurement
	255	IF ( modus == 'start' .OR. modus == 'continue' ) THEN
	256	log_event%mtime = mtime
	257	log_event%mtimevec = mtimevec
	258	ELSEIF ( modus == 'pause' ) THEN
	259	IF ( ( mtime - log_event%mtime ) < 0.0 .AND. first ) THEN
[1320]	260	WRITE( message_string, * ) 'negative time interval occured', &
	261	' &PE',myid,' L=PAUSE "',TRIM(log_event%place), &
	262	'" new=', mtime,' last=',log_event%mtime
[1318]	263	CALL message( 'cpu_log', 'PA0176', 0, 1, -1, 6, 0 )
	264	first = .FALSE.
	265	ENDIF
	266	log_event%isum = log_event%isum + mtime - log_event%mtime
	267	log_event%ivect = log_event%ivect + mtimevec - log_event%mtimevec
	268	ELSEIF ( modus == 'stop' ) THEN
[1320]	269	IF ( ( mtime - log_event%mtime + log_event%isum ) < 0.0 .AND. &
[1318]	270	first ) THEN
[1320]	271	WRITE( message_string, * ) 'negative time interval occured', &
[2266]	272	' &PE',myid,' L=STOP "',TRIM(log_event%place),'" new=', &
	273	mtime,' last=',log_event%mtime,' isum=',log_event%isum
[1318]	274	CALL message( 'cpu_log', 'PA0177', 0, 1, -1, 6, 0 )
	275	first = .FALSE.
	276	ENDIF
	277	log_event%mtime = mtime - log_event%mtime + log_event%isum
	278	log_event%mtimevec = mtimevec - log_event%mtimevec + log_event%ivect
	279	log_event%sum = log_event%sum + log_event%mtime
	280	IF ( log_event%sum < 0.0 .AND. first ) THEN
[1320]	281	WRITE( message_string, * ) 'negative time interval occured', &
[2266]	282	' &PE',myid,' L=STOP "',TRIM(log_event%place),'" sum=', &
	283	log_event%sum,' mtime=',log_event%mtime
[1318]	284	CALL message( 'cpu_log', 'PA0178', 0, 1, -1, 6, 0 )
	285	first = .FALSE.
	286	ENDIF
	287	log_event%vector = log_event%vector + log_event%mtimevec
	288	log_event%counts = log_event%counts + 1
[1353]	289	log_event%isum = 0.0_wp
	290	log_event%ivect = 0.0_wp
[1318]	291	ELSE
[2266]	292	message_string = 'unknown modus of time measurement: ' // &
	293	TRIM( modus )
[1318]	294	CALL message( 'cpu_log', 'PA0179', 0, 1, -1, 6, 0 )
[1]	295	ENDIF
[1318]	296
	297	END SUBROUTINE cpu_log
	298
	299
	300	!------------------------------------------------------------------------------!
	301	! Description:
	302	! ------------
[1682]	303	!> Analysis and output of the cpu-times measured. All PE results are collected
	304	!> on PE0 in order to calculate the mean cpu-time over all PEs and other
	305	!> statistics. The output is sorted according to the amount of cpu-time consumed
	306	!> and output on PE0.
[1318]	307	!------------------------------------------------------------------------------!
[1682]	308
	309	SUBROUTINE cpu_statistics
[1318]	310
	311	IMPLICIT NONE
	312
[1682]	313	INTEGER(iwp) :: i !<
	314	INTEGER(iwp) :: ii(1) !<
	315	INTEGER(iwp) :: iii !<
	316	INTEGER(iwp) :: sender !<
	317	REAL(wp) :: average_cputime !<
	318	REAL(wp), SAVE :: norm = 1.0_wp !<
	319	REAL(wp), DIMENSION(:), ALLOCATABLE :: pe_max !<
	320	REAL(wp), DIMENSION(:), ALLOCATABLE :: pe_min !<
	321	REAL(wp), DIMENSION(:), ALLOCATABLE :: pe_rms !<
	322	REAL(wp), DIMENSION(:), ALLOCATABLE :: sum !<
	323	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: pe_log_points !<
[1318]	324
	325
[1402]	326	CALL location_message( 'calculating cpu statistics', .FALSE. )
	327
[1318]	328	!
	329	!-- Compute cpu-times in seconds
	330	log_point%mtime = log_point%mtime / norm
	331	log_point%sum = log_point%sum / norm
	332	log_point%vector = log_point%vector / norm
	333	WHERE ( log_point%counts /= 0 )
	334	log_point%mean = log_point%sum / log_point%counts
	335	END WHERE
	336
	337
	338	!
	339	!-- Collect cpu-times from all PEs and calculate statistics
	340	IF ( myid == 0 ) THEN
	341	!
	342	!-- Allocate and initialize temporary arrays needed for statistics
[1320]	343	ALLOCATE( pe_max( SIZE( log_point ) ), pe_min( SIZE( log_point ) ), &
	344	pe_rms( SIZE( log_point ) ), &
[1318]	345	pe_log_points( SIZE( log_point ), 0:numprocs-1 ) )
	346	pe_min = log_point%sum
	347	pe_max = log_point%sum ! need to be set in case of 1 PE
[1353]	348	pe_rms = 0.0_wp
[1318]	349
	350	#if defined( __parallel )
	351	!
	352	!-- Receive data from all PEs
	353	DO i = 1, numprocs-1
[1320]	354	CALL MPI_RECV( pe_max(1), SIZE( log_point ), MPI_REAL, &
[1318]	355	i, i, comm2d, status, ierr )
	356	sender = status(MPI_SOURCE)
	357	pe_log_points(:,sender) = pe_max
	358	ENDDO
	359	pe_log_points(:,0) = log_point%sum ! Results from PE0
	360	!
	361	!-- Calculate mean of all PEs, store it on log_point%sum
	362	!-- and find minimum and maximum
	363	DO iii = 1, SIZE( log_point )
	364	DO i = 1, numprocs-1
	365	log_point(iii)%sum = log_point(iii)%sum + pe_log_points(iii,i)
	366	pe_min(iii) = MIN( pe_min(iii), pe_log_points(iii,i) )
	367	pe_max(iii) = MAX( pe_max(iii), pe_log_points(iii,i) )
	368	ENDDO
	369	log_point(iii)%sum = log_point(iii)%sum / numprocs
	370	!
	371	!-- Calculate rms
	372	DO i = 0, numprocs-1
[1320]	373	pe_rms(iii) = pe_rms(iii) + ( &
	374	pe_log_points(iii,i) - log_point(iii)%sum &
[1318]	375	)**2
	376	ENDDO
	377	pe_rms(iii) = SQRT( pe_rms(iii) / numprocs )
	378	ENDDO
	379	ELSE
	380	!
	381	!-- Send data to PE0 (pe_max is used as temporary storage to send
	382	!-- the data in order to avoid sending the data type log)
	383	ALLOCATE( pe_max( SIZE( log_point ) ) )
	384	pe_max = log_point%sum
[2266]	385	CALL MPI_SEND( pe_max(1), SIZE( log_point ), MPI_REAL, 0, myid, &
	386	comm2d, ierr )
[1318]	387	#endif
	388
[1]	389	ENDIF
[1318]	390
	391	!
	392	!-- Write cpu-times
	393	IF ( myid == 0 ) THEN
	394	!
	395	!-- Re-store sums
	396	ALLOCATE( sum( SIZE( log_point ) ) )
	397	WHERE ( log_point%counts /= 0 )
	398	sum = log_point%sum
	399	ELSEWHERE
[1353]	400	sum = -1.0_wp
[1318]	401	ENDWHERE
	402
	403	!
[2266]	404	!-- Get total time in order to calculate CPU-time per gridpoint and
	405	!-- timestep
[1318]	406	IF ( nr_timesteps_this_run /= 0 ) THEN
[2266]	407	average_cputime = log_point(1)%sum / REAL( ngp_3d(0), KIND=wp ) / &
	408	REAL( nr_timesteps_this_run, KIND=wp ) * 1E6_wp
	409	! in micro-sec
[1318]	410	ELSE
[1353]	411	average_cputime = -1.0_wp
[1318]	412	ENDIF
	413
	414	!
	415	!-- Write cpu-times sorted by size
	416	CALL check_open( 18 )
	417	#if defined( __parallel )
[2266]	418	WRITE ( 18, 100 ) TRIM( run_description_header ), &
	419	numprocs * threads_per_task, pdims(1), pdims(2), &
	420	threads_per_task, nx+1, ny+1, nz, &
	421	nr_timesteps_this_run, average_cputime
[1318]	422
	423	WRITE ( 18, 110 )
	424	#else
[2266]	425	WRITE ( 18, 100 ) TRIM( run_description_header ), &
	426	numprocs * threads_per_task, 1, 1, &
	427	threads_per_task, nx+1, ny+1, nz, &
	428	nr_timesteps_this_run, average_cputime
[1318]	429
	430	WRITE ( 18, 110 )
	431	#endif
	432	DO
	433	ii = MAXLOC( sum )
	434	i = ii(1)
[1353]	435	IF ( sum(i) /= -1.0_wp ) THEN
[1318]	436	WRITE ( 18, 102 ) &
[1353]	437	log_point(i)%place, log_point(i)%sum, &
	438	log_point(i)%sum / log_point(1)%sum * 100.0_wp, &
[1318]	439	log_point(i)%counts, pe_min(i), pe_max(i), pe_rms(i)
[1353]	440	sum(i) = -1.0_wp
[1318]	441	ELSE
	442	EXIT
	443	ENDIF
	444	ENDDO
[1]	445	ENDIF
	446
	447
[1318]	448	!
	449	!-- The same procedure again for the individual measurements.
	450	!
	451	!-- Compute cpu-times in seconds
	452	log_point_s%mtime = log_point_s%mtime / norm
	453	log_point_s%sum = log_point_s%sum / norm
	454	log_point_s%vector = log_point_s%vector / norm
	455	WHERE ( log_point_s%counts /= 0 )
	456	log_point_s%mean = log_point_s%sum / log_point_s%counts
	457	END WHERE
	458
	459	!
	460	!-- Collect cpu-times from all PEs and calculate statistics
	461	#if defined( __parallel )
	462	!
	463	!-- Set barrier in order to avoid that PE0 receives log_point_s-data
	464	!-- while still busy with receiving log_point-data (see above)
	465	CALL MPI_BARRIER( comm2d, ierr )
	466	#endif
	467	IF ( myid == 0 ) THEN
	468	!
	469	!-- Initialize temporary arrays needed for statistics
	470	pe_min = log_point_s%sum
	471	pe_max = log_point_s%sum ! need to be set in case of 1 PE
[1353]	472	pe_rms = 0.0_wp
[1318]	473
	474	#if defined( __parallel )
	475	!
	476	!-- Receive data from all PEs
	477	DO i = 1, numprocs-1
	478	CALL MPI_RECV( pe_max(1), SIZE( log_point ), MPI_REAL, &
	479	MPI_ANY_SOURCE, MPI_ANY_TAG, comm2d, status, ierr )
	480	sender = status(MPI_SOURCE)
	481	pe_log_points(:,sender) = pe_max
	482	ENDDO
	483	pe_log_points(:,0) = log_point_s%sum ! Results from PE0
	484	!
	485	!-- Calculate mean of all PEs, store it on log_point_s%sum
	486	!-- and find minimum and maximum
	487	DO iii = 1, SIZE( log_point )
	488	DO i = 1, numprocs-1
[2266]	489	log_point_s(iii)%sum = log_point_s(iii)%sum + &
	490	pe_log_points(iii,i)
[1318]	491	pe_min(iii) = MIN( pe_min(iii), pe_log_points(iii,i) )
	492	pe_max(iii) = MAX( pe_max(iii), pe_log_points(iii,i) )
	493	ENDDO
	494	log_point_s(iii)%sum = log_point_s(iii)%sum / numprocs
	495	!
	496	!-- Calculate rms
	497	DO i = 0, numprocs-1
[1353]	498	pe_rms(iii) = pe_rms(iii) + ( &
[2266]	499	pe_log_points(iii,i) - log_point_s(iii)%sum &
[1318]	500	)**2
	501	ENDDO
	502	pe_rms(iii) = SQRT( pe_rms(iii) / numprocs )
	503	ENDDO
	504	ELSE
	505	!
	506	!-- Send data to PE0 (pe_max is used as temporary storage to send
	507	!-- the data in order to avoid sending the data type log)
	508	pe_max = log_point_s%sum
	509	CALL MPI_SEND( pe_max(1), SIZE( log_point ), MPI_REAL, 0, 0, comm2d, &
	510	ierr )
	511	#endif
	512
	513	ENDIF
	514
	515	!
	516	!-- Write cpu-times
	517	IF ( myid == 0 ) THEN
	518	!
	519	!-- Re-store sums
	520	WHERE ( log_point_s%counts /= 0 )
	521	sum = log_point_s%sum
	522	ELSEWHERE
[1353]	523	sum = -1.0_wp
[1318]	524	ENDWHERE
	525
	526	!
	527	!-- Write cpu-times sorted by size
	528	WRITE ( 18, 101 )
	529	DO
	530	ii = MAXLOC( sum )
	531	i = ii(1)
[1353]	532	IF ( sum(i) /= -1.0_wp ) THEN
	533	WRITE ( 18, 102 ) &
	534	log_point_s(i)%place, log_point_s(i)%sum, &
	535	log_point_s(i)%sum / log_point(1)%sum * 100.0_wp, &
[1318]	536	log_point_s(i)%counts, pe_min(i), pe_max(i), pe_rms(i)
[1353]	537	sum(i) = -1.0_wp
[1318]	538	ELSE
	539	EXIT
	540	ENDIF
	541	ENDDO
	542
	543	!
	544	!-- Output of handling of MPI operations
	545	IF ( collective_wait ) THEN
	546	WRITE ( 18, 103 )
	547	ELSE
	548	WRITE ( 18, 104 )
	549	ENDIF
	550	IF ( cpu_log_barrierwait ) WRITE ( 18, 111 )
	551	IF ( synchronous_exchange ) THEN
	552	WRITE ( 18, 105 )
	553	ELSE
	554	WRITE ( 18, 106 )
	555	ENDIF
	556
	557	!
	558	!-- Empty lines in order to create a gap to the results of the model
	559	!-- continuation runs
	560	WRITE ( 18, 107 )
	561
	562	!
	563	!-- Unit 18 is not needed anymore
	564	CALL close_file( 18 )
	565
	566	ENDIF
	567
[1402]	568	CALL location_message( 'finished', .TRUE. )
[1318]	569
	570	100 FORMAT (A/11('-')//'CPU measures for ',I5,' PEs (',I5,'(x) * ',I5,'(y', &
	571	&') tasks *',I5,' threads):'// &
	572	'gridpoints (x/y/z): ',20X,I5,' * ',I5,' * ',I5/ &
	573	'nr of timesteps: ',22X,I6/ &
	574	'cpu time per grid point and timestep: ',5X,F8.5,' * 10**-6 s')
	575
	576	101 FORMAT (/'special measures:'/ &
	577	&'-----------------------------------------------------------', &
[1931]	578	&'------------------------')
[1318]	579
[1931]	580	102 FORMAT (A25,2X,F9.3,2X,F7.2,1X,I7,3(1X,F9.3))
[1318]	581	103 FORMAT (/'Barriers are set in front of collective operations')
	582	104 FORMAT (/'No barriers are set in front of collective operations')
	583	105 FORMAT (/'Exchange of ghostpoints via MPI_SENDRCV')
	584	106 FORMAT (/'Exchange of ghostpoints via MPI_ISEND/MPI_IRECV')
	585	107 FORMAT (//)
[1931]	586	110 FORMAT ('-------------------------------------------------------------', &
	587	&'---------'//&
	588	&'place: mean counts min ',&
[1318]	589	&' max rms'/ &
[1931]	590	&' sec. % sec. ', &
[1318]	591	&' sec. sec.'/ &
[1931]	592	&'-----------------------------------------------------------', &
	593	&'------------------------')
[1318]	594	111 FORMAT (/'Barriers are set at beginning (start/continue) of measurements')
	595
	596	END SUBROUTINE cpu_statistics
	597
	598	END MODULE cpulog

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