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: #include <petsc/finclude/petscsys.h>
15: #include <petsc/finclude/petsclog.h>
16: use petscsys
17: implicit none
19: !
20: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
21: ! Variable declarations
22: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
23: !
24: PetscLogEvent USER_EVENT1,USER_EVENT2
25: PetscLogEvent USER_EVENT3,USER_EVENT4
26: PetscLogEvent USER_EVENT5,USER_EVENT6
27: PetscLogEvent USER_EVENT7,USER_EVENT8
28: PetscLogEvent USER_EVENT9
29: PetscClassId classid
30: integer imax
31: PetscErrorCode ierr
32: parameter (imax = 10000)
33: PetscLogDouble onefp
34: parameter (onefp = 1.0d0)
35: PetscReal onereal,tenreal
36: parameter (onereal = 1.0, tenreal = 10.0)
37: PetscInt n
38: !
39: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
40: ! Beginning of program
41: ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
43: call PetscInitialize(PETSC_NULL_CHARACTER,ierr)
44: if (ierr .ne. 0) then
45: print*,'Unable to initialize PETSc'
46: stop
47: endif
49: !
50: ! Create a new user-defined event.
51: ! - Note that PetscLogEventRegister() returns to the user a unique
52: ! integer event number, which should then be used for profiling
53: ! the event via PetscLogEventBegin() and PetscLogEventEnd().
54: ! - The user can also optionally log floating point operations
55: ! with the routine PetscLogFlops().
56: !
57: classid = 0
58: call PetscLogEventRegister('Event 1',classid,USER_EVENT1,ierr)
59: call PetscLogEventRegister('Event 2',classid,USER_EVENT2,ierr)
60: call PetscLogEventRegister('Event 3',classid,USER_EVENT3,ierr)
61: call PetscLogEventRegister('Event 4',classid,USER_EVENT4,ierr)
62: call PetscLogEventRegister('Event 5',classid,USER_EVENT5,ierr)
63: call PetscLogEventRegister('Event 6',classid,USER_EVENT6,ierr)
64: call PetscLogEventRegister('Event 7',classid,USER_EVENT7,ierr)
65: call PetscLogEventRegister('Event 8',classid,USER_EVENT8,ierr)
66: call PetscLogEventRegister('Event 9',classid,USER_EVENT9,ierr)
67: call PetscLogEventBegin(USER_EVENT1,ierr)
68: call PetscLogFlops(imax*onefp,ierr)
69: call PetscSleep(onereal,ierr)
70: call PetscLogEventEnd(USER_EVENT1,ierr)
71: call PetscLogEventBegin(USER_EVENT2,ierr)
72: call PetscLogFlops(imax*onefp,ierr)
73: call PetscSleep(onereal,ierr)
74: call PetscLogEventEnd(USER_EVENT2,ierr)
75: call PetscLogEventBegin(USER_EVENT3,ierr)
76: call PetscLogFlops(imax*onefp,ierr)
77: call PetscSleep(onereal,ierr)
78: call PetscLogEventEnd(USER_EVENT3,ierr)
79: call PetscLogEventBegin(USER_EVENT4,ierr)
80: call PetscLogFlops(imax*onefp,ierr)
81: call PetscSleep(onereal,ierr)
82: call PetscLogEventEnd(USER_EVENT4,ierr)
83: call PetscLogEventBegin(USER_EVENT5,ierr)
84: call PetscLogFlops(imax*onefp,ierr)
85: call PetscSleep(onereal,ierr)
86: call PetscLogEventEnd(USER_EVENT5,ierr)
87: call PetscLogEventBegin(USER_EVENT6,ierr)
88: call PetscLogFlops(imax*onefp,ierr)
89: call PetscSleep(onereal,ierr)
90: call PetscLogEventEnd(USER_EVENT6,ierr)
91: call PetscLogEventBegin(USER_EVENT7,ierr)
92: call PetscLogFlops(imax*onefp,ierr)
93: call PetscSleep(onereal,ierr)
94: call PetscLogEventEnd(USER_EVENT7,ierr)
95: call PetscLogEventBegin(USER_EVENT8,ierr)
96: call PetscLogFlops(imax*onefp,ierr)
97: call PetscSleep(onereal,ierr)
98: call PetscLogEventEnd(USER_EVENT8,ierr)
99: call PetscLogEventBegin(USER_EVENT9,ierr)
100: call PetscLogFlops(imax*onefp,ierr)
101: call PetscSleep(onereal,ierr)
102: call PetscLogEventEnd(USER_EVENT9,ierr)
103: !
104: ! We disable the logging of an event.
105: ! - Note that the user can activate/deactive both user-defined
106: ! events and predefined PETSc events.
107: !
108: call PetscLogEventDeactivate(USER_EVENT1,ierr)
109: call PetscLogEventBegin(USER_EVENT1,ierr)
110: call PetscSleep(onereal,ierr)
111: call PetscLogEventEnd(USER_EVENT1,ierr)
112: !
113: ! We next enable the logging of an event
114: !
115: call PetscLogEventActivate(USER_EVENT1,ierr)
116: call PetscLogEventBegin(USER_EVENT1,ierr)
117: call PetscSleep(onereal,ierr)
118: call PetscLogEventEnd(USER_EVENT1,ierr)
120: call PetscInfo('PETSc info message\n'//'Another line\n',ierr)
121: call PetscOptionsAllUsed(PETSC_NULL_OPTIONS,n,ierr);
122: call PetscFinalize(ierr)
124: end
126: !
127: !/*TEST
128: !
129: ! test:
130: !
131: !TEST*/