[1] | 1 | SUBROUTINE cpu_log( log_event, place, modus, barrierwait ) |
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| 2 | |
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| 3 | !------------------------------------------------------------------------------! |
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| 4 | ! Actual revisions: |
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| 5 | ! ----------------- |
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[83] | 6 | ! |
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[1] | 7 | ! |
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| 8 | ! Former revisions: |
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| 9 | ! ----------------- |
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[3] | 10 | ! $Id: cpu_log.f90 83 2007-04-19 16:27:07Z letzel $ |
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[83] | 11 | ! |
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| 12 | ! 82 2007-04-16 15:40:52Z raasch |
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| 13 | ! Preprocessor strings for different linux clusters changed to "lc", |
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| 14 | ! preprocessor directives for old systems removed |
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| 15 | ! |
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[3] | 16 | ! RCS Log replace by Id keyword, revision history cleaned up |
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| 17 | ! |
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[1] | 18 | ! Revision 1.24 2006/06/02 15:12:17 raasch |
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| 19 | ! cpp-directives extended for lctit |
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| 20 | ! |
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| 21 | ! Revision 1.1 1997/07/24 11:12:29 raasch |
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| 22 | ! Initial revision |
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| 23 | ! |
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| 24 | ! |
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| 25 | ! Description: |
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| 26 | ! ------------ |
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| 27 | ! Cpu-time measurements for any program part whatever. |
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[3] | 28 | !------------------------------------------------------------------------------! |
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[1] | 29 | |
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| 30 | USE cpulog |
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| 31 | USE pegrid |
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| 32 | |
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| 33 | IMPLICIT NONE |
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| 34 | |
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| 35 | CHARACTER (LEN=*) :: modus, place |
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| 36 | CHARACTER (LEN=*), OPTIONAL :: barrierwait |
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| 37 | LOGICAL, SAVE :: first = .TRUE. |
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| 38 | REAL :: mtime = 0.0, mtimevec = 0.0 |
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| 39 | TYPE(logpoint) :: log_event |
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| 40 | |
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[82] | 41 | #if defined( __lc ) || defined( __decalpha ) || defined( __nec ) |
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[1] | 42 | INTEGER :: count, count_rate |
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| 43 | #elif defined( __ibm ) |
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| 44 | INTEGER(8) :: IRTC |
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| 45 | #endif |
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| 46 | |
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| 47 | |
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| 48 | ! |
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| 49 | !-- Initialize and check, respectively, point of measurement |
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| 50 | IF ( log_event%place == ' ' ) THEN |
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| 51 | log_event%place = place |
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| 52 | ELSEIF ( log_event%place /= place ) THEN |
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| 53 | IF ( myid == 0 ) THEN |
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| 54 | PRINT*,'+++ cpu_log: wrong argument' |
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| 55 | PRINT*,' expected: ',log_event%place,' given: ', place |
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| 56 | ENDIF |
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| 57 | CALL local_stop |
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| 58 | ENDIF |
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| 59 | |
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| 60 | ! |
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| 61 | !-- Take current time |
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[82] | 62 | #if defined( __lc ) || defined( __decalpha ) || defined( __nec ) |
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[1] | 63 | CALL SYSTEM_CLOCK( count, count_rate ) |
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| 64 | mtime = REAL( count ) / REAL( count_rate ) |
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| 65 | #elif defined( __ibm ) |
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| 66 | mtime = IRTC( ) * 1E-9 |
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| 67 | #else |
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| 68 | IF ( myid == 0 ) THEN |
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| 69 | PRINT*, '+++ cpu_log: no time measurement defined on this host' |
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| 70 | ENDIF |
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| 71 | CALL local_stop |
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| 72 | #endif |
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| 73 | |
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| 74 | ! |
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| 75 | !-- Start, stop or pause measurement |
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| 76 | IF ( modus == 'start' .OR. modus == 'continue' ) THEN |
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| 77 | log_event%mtime = mtime |
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| 78 | log_event%mtimevec = mtimevec |
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| 79 | ELSEIF ( modus == 'pause' ) THEN |
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| 80 | IF ( ( mtime - log_event%mtime ) < 0.0 .AND. first ) THEN |
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| 81 | PRINT*,'+++ WARNING: cpu_log: negative time interval occured' |
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| 82 | PRINT*,'+++ PE',myid,' L=PAUSE "',TRIM(log_event%place),'" new=', & |
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| 83 | mtime,' last=',log_event%mtime |
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| 84 | first = .FALSE. |
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| 85 | ENDIF |
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| 86 | log_event%isum = log_event%isum + mtime - log_event%mtime |
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| 87 | log_event%ivect = log_event%ivect + mtimevec - log_event%mtimevec |
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| 88 | ELSEIF ( modus == 'stop' ) THEN |
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| 89 | IF ( ( mtime - log_event%mtime + log_event%isum ) < 0.0 .AND. & |
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| 90 | first ) THEN |
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| 91 | PRINT*,'+++ WARNING: cpu_log: negative time interval occured' |
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| 92 | PRINT*,'+++ PE',myid,' L=STOP "',TRIM(log_event%place),'" new=', & |
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| 93 | mtime,' last=',log_event%mtime,' isum=',log_event%isum |
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| 94 | first = .FALSE. |
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| 95 | ENDIF |
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| 96 | log_event%mtime = mtime - log_event%mtime + log_event%isum |
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| 97 | log_event%mtimevec = mtimevec - log_event%mtimevec + log_event%ivect |
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| 98 | log_event%sum = log_event%sum + log_event%mtime |
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| 99 | IF ( log_event%sum < 0.0 .AND. first ) THEN |
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| 100 | PRINT*,'+++ WARNING: cpu_log: negative time interval occured' |
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| 101 | PRINT*,'+++ PE',myid,' L=STOP "',TRIM(log_event%place),'" sum=', & |
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| 102 | log_event%sum,' mtime=',log_event%mtime |
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| 103 | first = .FALSE. |
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| 104 | ENDIF |
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| 105 | log_event%vector = log_event%vector + log_event%mtimevec |
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| 106 | log_event%counts = log_event%counts + 1 |
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| 107 | log_event%isum = 0.0 |
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| 108 | log_event%ivect = 0.0 |
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| 109 | ELSE |
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| 110 | PRINT*, '+++ unknown modus of time measurement: ', modus |
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| 111 | ENDIF |
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| 112 | |
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| 113 | |
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| 114 | END SUBROUTINE cpu_log |
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