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SUBROUTINE USER_CLOCK(PELAPSED_TIME,PELAPSED_TIME_SINCE,PVECTOR_CP,PTOTAL_CP) |
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!**** *USER_CLOCK* - interface to system dependent timer routines |
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! Purpose. |
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! -------- |
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! Returns elapsed and CP from the start of execution. |
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! Elapsed time is made relative to the first call to USER_CLOCK. |
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!** Interface. |
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! ---------- |
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! ZTIME=USER_CLOCK(PELAPSED_TIME,PELAPSED_TIME_SINCE, |
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! PVECTOR_CP,PTOTAL_CP) |
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! Explicit arguments: (All are optional arguments) |
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! PELAPSED_TIME=wall clock time (seconds) |
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! PELAPSED_TIME_SINCE=wall clock time (seconds) |
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! change from input value of this parameter |
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! PVECTOR_CP=CP vector time (seconds) |
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! PTOTAL_CP=total CP time (seconds) |
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! Author. |
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! ------- |
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! D.Dent *ECMWF* |
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! External References: |
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! ------------------- |
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! TIMEF,CPTIME |
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! Modifications. |
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! -------------- |
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! Original : 97-09-25 |
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! ---------------------------------------------------------- |
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USE PARKIND1 ,ONLY : JPIM ,JPRB |
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IMPLICIT NONE |
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REAL(KIND=JPRB),INTENT(OUT) :: PELAPSED_TIME,PVECTOR_CP,PTOTAL_CP |
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REAL(KIND=JPRB),INTENT(INOUT) :: PELAPSED_TIME_SINCE |
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OPTIONAL PELAPSED_TIME,PELAPSED_TIME_SINCE |
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OPTIONAL PVECTOR_CP,PTOTAL_CP |
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REAL(KIND=JPRB) :: ZVECTOR_CP,ZTOTAL_CP,ZWALL |
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REAL(KIND=JPRB),EXTERNAL :: TIMEF |
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! === END OF INTERFACE BLOCK === |
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IF(PRESENT(PELAPSED_TIME).OR. PRESENT(PELAPSED_TIME_SINCE)) THEN |
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ZWALL=TIMEF() |
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! TIMEF returns milliseconds since first call to TIMEF |
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IF(PRESENT(PELAPSED_TIME)) THEN |
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PELAPSED_TIME=ZWALL*1.0E-3_JPRB |
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ENDIF |
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IF(PRESENT(PELAPSED_TIME_SINCE)) THEN |
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PELAPSED_TIME_SINCE=ZWALL*1.0E-3_JPRB - PELAPSED_TIME_SINCE |
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ENDIF |
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ENDIF |
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IF( PRESENT(PVECTOR_CP) .OR. PRESENT(PTOTAL_CP) ) THEN |
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CALL CPTIME(ZVECTOR_CP,ZTOTAL_CP) |
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ENDIF |
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IF( PRESENT(PVECTOR_CP) ) THEN |
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PVECTOR_CP=ZVECTOR_CP |
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ENDIF |
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IF( PRESENT(PTOTAL_CP) ) THEN |
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PTOTAL_CP=ZTOTAL_CP |
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ENDIF |
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RETURN |
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END SUBROUTINE USER_CLOCK |
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