Actual source code: ex3f.F

  1: !
  2: !
  3: !   Description: Demonstrates how users can augment the PETSc profiling by
  4: !                nserting their own event logging.
  5: !
  6: !/*T
  7: !   Concepts: PetscLog^user-defined event profiling (basic example);
  8: !   Concepts: PetscLog^activating/deactivating events for profiling (basic example);
  9: !   Processors: n
 10: !T*/
 11: ! -----------------------------------------------------------------------

 13:       program main
 14:       implicit none

 16: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 17: !                    Include files
 18: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 19: !
 20: !  The following include statements are required for using PetscLog Routines
 21: !
 22:  #include include/finclude/petsc.h
 23:  #include include/finclude/petsclog.h
 24: !
 25: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 26: !                   Variable declarations
 27: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 28: !
 29:       PetscEvent USER_EVENT1,USER_EVENT2,USER_EVENT3,USER_EVENT4
 30:       PetscEvent USER_EVENT8,USER_EVENT9
 31:       PetscEvent USER_EVENT5,USER_EVENT6,USER_EVENT7
 32:       integer imax
 33:       PetscErrorCode ierr
 34:       parameter (imax = 10000)
 35: !
 36: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 37: !                 Beginning of program
 38: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 40:       call PetscInitialize(PETSC_NULL_CHARACTER,ierr)

 42: !
 43: !     Create a new user-defined event.
 44: !      - Note that PetscLogEventRegister() returns to the user a unique
 45: !        integer event number, which should then be used for profiling
 46: !        the event via PetscLogEventBegin() and PetscLogEventEnd().
 47: !      - The user can also optionally log floating point operations
 48: !        with the routine PetscLogFlops().
 49: !
 50:       call PetscLogEventRegister(USER_EVENT1,'Event 1',0,ierr)
 51:       call PetscLogEventRegister(USER_EVENT2,'Event 2',0,ierr)
 52:       call PetscLogEventRegister(USER_EVENT3,'Event 3',0,ierr)
 53:       call PetscLogEventRegister(USER_EVENT4,'Event 4',0,ierr)
 54:       call PetscLogEventRegister(USER_EVENT5,'Event 5',0,ierr)
 55:       call PetscLogEventRegister(USER_EVENT6,'Event 6',0,ierr)
 56:       call PetscLogEventRegister(USER_EVENT7,'Event 7',0,ierr)
 57:       call PetscLogEventRegister(USER_EVENT8,'Event 8',0,ierr)
 58:       call PetscLogEventRegister(USER_EVENT9,'Event 9',0,ierr)
 59:       call PetscLogEventBegin(USER_EVENT1,ierr)
 60:       call PetscLogFlops(imax,ierr)
 61:       call PetscSleep(1,ierr)
 62:       call PetscLogEventEnd(USER_EVENT1,ierr)
 63:       call PetscLogEventBegin(USER_EVENT2,ierr)
 64:       call PetscLogFlops(imax,ierr)
 65:       call PetscSleep(1,ierr)
 66:       call PetscLogEventEnd(USER_EVENT2,ierr)
 67:       call PetscLogEventBegin(USER_EVENT3,ierr)
 68:       call PetscLogFlops(imax,ierr)
 69:       call PetscSleep(1,ierr)
 70:       call PetscLogEventEnd(USER_EVENT3,ierr)
 71:       call PetscLogEventBegin(USER_EVENT4,ierr)
 72:       call PetscLogFlops(imax,ierr)
 73:       call PetscSleep(1,ierr)
 74:       call PetscLogEventEnd(USER_EVENT4,ierr)
 75:       call PetscLogEventBegin(USER_EVENT5,ierr)
 76:       call PetscLogFlops(imax,ierr)
 77:       call PetscSleep(1,ierr)
 78:       call PetscLogEventEnd(USER_EVENT5,ierr)
 79:       call PetscLogEventBegin(USER_EVENT6,ierr)
 80:       call PetscLogFlops(imax,ierr)
 81:       call PetscSleep(1,ierr)
 82:       call PetscLogEventEnd(USER_EVENT6,ierr)
 83:       call PetscLogEventBegin(USER_EVENT7,ierr)
 84:       call PetscLogFlops(imax,ierr)
 85:       call PetscSleep(1,ierr)
 86:       call PetscLogEventEnd(USER_EVENT7,ierr)
 87:       call PetscLogEventBegin(USER_EVENT8,ierr)
 88:       call PetscLogFlops(imax,ierr)
 89:       call PetscSleep(1,ierr)
 90:       call PetscLogEventEnd(USER_EVENT8,ierr)
 91:       call PetscLogEventBegin(USER_EVENT9,ierr)
 92:       call PetscLogFlops(imax,ierr)
 93:       call PetscSleep(1,ierr)
 94:       call PetscLogEventEnd(USER_EVENT9,ierr)
 95: !
 96: !    We disable the logging of an event.
 97: !      - Note that the user can activate/deactive both user-defined
 98: !        events and predefined PETSc events.
 99: !
100:       call PetscLogEventDeactivate(USER_EVENT1,ierr)
101:       call PetscLogEventBegin(USER_EVENT1,ierr)
102:       call PetscSleep(1,ierr)
103:       call PetscLogEventEnd(USER_EVENT1,ierr)
104: !
105: !    We next enable the logging of an event
106: !
107:       call PetscLogEventActivate(USER_EVENT1,ierr)
108:       call PetscLogEventBegin(USER_EVENT1,ierr)
109:       call PetscSleep(1,ierr)
110:       call PetscLogEventEnd(USER_EVENT1,ierr)

112:       call PetscFinalize(ierr)

114:       end