Actual source code: ex1f.F90
petsc-3.11.4 2019-09-28
1: !
2: !
3: ! Description: Demonstrates how users can augment the PETSc profiling by
4: ! inserting 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 SchoolDay
14: #include <petsc/finclude/petscsys.h>
15: #include <petsc/finclude/petsclog.h>
16: use petscsys
17: implicit none
19: !====================================================================
20: ! Local Variables
22: ! Settings:
23: integer, parameter :: verbose=0 ! 0: silent, >=1 : increasing amount of debugging output
24: integer, parameter :: msgLen = 30 ! number of reals which is sent with MPI_Isend
25: PetscReal, parameter :: second=0.1; ! time is sped up by a factor 10
27: ! Codes
28: integer, parameter :: BOY=1, GIRL=2, TEACHER=0
29: PetscMPIInt, parameter :: tagMsg = 1200;
31: ! Timers
32: PetscLogEvent :: Morning, Afternoon
33: PetscLogEvent :: PlayBall, SkipRope
34: PetscLogEvent :: TidyClass
35: PetscLogEvent :: Lessons, CorrectHomework
37: ! Petsc-stuff
38: PetscErrorCode :: ierr
40: ! MPI-stuff
41: integer :: rank, size
42: PetscReal, allocatable :: message(:,:)
43: integer :: item, maxItem
44: integer :: status(MPI_STATUS_SIZE)
45: integer :: req
47: ! Own stuff
48: integer :: role ! is this process a BOY, a GIRL or a TEACHER?
49: integer :: i, j
50: !====================================================================
51: ! Initializations
52: call PetscInitialize(PETSC_NULL_CHARACTER,ierr)
53: if (ierr .ne. 0) then
54: print*,'Unable to initialize PETSc'
55: stop
56: endif
57: call MPI_Comm_size(PETSC_COMM_WORLD, size,ierr)
58: call MPI_Comm_rank(PETSC_COMM_WORLD, rank,ierr)
60: if (rank==0) then
61: role = TEACHER
62: else if (rank<0.4*size) then
63: role = GIRL
64: else
65: role = BOY
66: end if
68: allocate(message(msgLen,msglen))
69: do i = 1,msgLen
70: do j = 1,msgLen
71: message(i,j) = 10.0*j + i*1.0/(rank+1)
72: end do
73: end do
74: !
75: !====================================================================
76: ! Create new user-defined events
77: call PetscLogEventRegister('Morning', 0, Morning, ierr)
78: call PetscLogEventRegister('Afternoon', 0, Afternoon, ierr)
79: call PetscLogEventRegister('Play Ball', 0, PlayBall, ierr)
80: call PetscLogEventRegister('Skip Rope', 0, SkipRope, ierr)
81: call PetscLogEventRegister('Tidy Classroom', 0, TidyClass, ierr)
82: call PetscLogEventRegister('Lessons', 0, Lessons, ierr)
83: call PetscLogEventRegister('Correct Homework',0,CorrectHomework, &
84: & ierr)
85: if (verbose>=1) then
86: print '(a,i0,a)','[',rank,'] SchoolDay events have been defined'
87: endif
89: !====================================================================
90: ! Go through the school day
91: call PetscLogEventBegin(Morning,ierr)
93: call PetscLogFlops(190000d0,ierr)
94: call PetscSleep(0.5*second,ierr)
96: call PetscLogEventBegin(Lessons,ierr)
97: call PetscLogFlops(23000d0,ierr)
98: call PetscSleep(1*second, ierr)
99: if (size>1) then
100: call MPI_Isend( message, msgLen, MPI_DOUBLE_PRECISION, &
101: & mod(rank+1,size), &
102: & tagMsg+rank, PETSC_COMM_WORLD, req, ierr)
103: call MPI_Recv( message, msgLen, MPI_DOUBLE_PRECISION, &
104: & mod(rank-1+size,size), &
105: & tagMsg+mod(rank-1+size,size), PETSC_COMM_WORLD, &
106: & status, ierr)
107: call MPI_Wait(req,MPI_STATUS_IGNORE,ierr)
108: end if
109: call PetscLogEventEnd(Lessons,ierr)
111: if (role==TEACHER) then
112: call PetscLogEventBegin(TidyClass,ierr)
113: call PetscLogFlops(600000d0,ierr)
114: call PetscSleep(0.6*second, ierr)
115: call PetscLogEventBegin(CorrectHomework,ierr)
116: call PetscLogFlops(234700d0,ierr)
117: call PetscSleep(0.4*second, ierr)
118: call PetscLogEventEnd(CorrectHomework,ierr)
119: call PetscLogEventEnd(TidyClass,ierr)
120: else if (role==BOY) then
121: call PetscLogEventBegin(SkipRope,ierr)
122: call PetscSleep(0.8*second, ierr)
123: call PetscLogEventEnd(SkipRope,ierr)
124: else
125: call PetscLogEventBegin(PlayBall,ierr)
126: call PetscSleep(0.9*second, ierr)
127: call PetscLogEventEnd(PlayBall,ierr)
128: end if
130: call PetscLogEventBegin(Lessons,ierr)
131: call PetscLogFlops(120000d0,ierr)
132: call PetscSleep(0.7*second, ierr)
133: call PetscLogEventEnd(Lessons,ierr)
135: call PetscLogEventEnd(Morning,ierr)
137: call PetscLogEventBegin(Afternoon,ierr)
139: item = rank*(3-rank)
140: call MPI_Allreduce(item, maxItem, 1, MPI_INTEGER, MPI_MAX, &
141: & PETSC_COMM_WORLD, ierr)
143: item = rank*(10-rank)
144: call MPI_Allreduce(item, maxItem, 1, MPI_INTEGER, MPI_MAX, &
145: & PETSC_COMM_WORLD, ierr)
147: call PetscLogFlops(58988d0,ierr)
148: call PetscSleep(0.6*second,ierr)
150: call PetscLogEventBegin(Lessons,ierr)
151: call PetscLogFlops(123456d0,ierr)
152: call PetscSleep(1*second, ierr)
153: call PetscLogEventEnd(Lessons,ierr)
155: if (role==TEACHER) then
156: call PetscLogEventBegin(TidyClass,ierr)
157: call PetscLogFlops(17800d0,ierr)
158: call PetscSleep(1.1*second, ierr)
159: call PetscLogEventBegin(Lessons,ierr)
160: call PetscLogFlops(72344d0,ierr)
161: call PetscSleep(0.5*second, ierr)
162: call PetscLogEventEnd(Lessons,ierr)
163: call PetscLogEventEnd(TidyClass,ierr)
164: else if (role==GIRL) then
165: call PetscLogEventBegin(SkipRope,ierr)
166: call PetscSleep(0.7*second, ierr)
167: call PetscLogEventEnd(SkipRope,ierr)
168: else
169: call PetscLogEventBegin(PlayBall,ierr)
170: call PetscSleep(0.8*second, ierr)
171: call PetscLogEventEnd(PlayBall,ierr)
172: end if
174: call PetscLogEventBegin(Lessons,ierr)
175: call PetscLogFlops(72344d0,ierr)
176: call PetscSleep(0.5*second, ierr)
177: call PetscLogEventEnd(Lessons,ierr)
179: call PetscLogEventEnd(Afternoon,ierr)
181: if (.false.) then
182: continue
183: else if (role==TEACHER) then
184: call PetscLogEventBegin(TidyClass,ierr)
185: call PetscLogFlops(612300d0,ierr)
186: call PetscSleep(1.1*second, ierr)
187: call PetscLogEventEnd(TidyClass,ierr)
188: call PetscLogEventBegin(CorrectHomework,ierr)
189: call PetscLogFlops(234700d0,ierr)
190: call PetscSleep(1.1*second, ierr)
191: call PetscLogEventEnd(CorrectHomework,ierr)
192: else
193: call PetscLogEventBegin(SkipRope,ierr)
194: call PetscSleep(0.7*second, ierr)
195: call PetscLogEventEnd(SkipRope,ierr)
196: call PetscLogEventBegin(PlayBall,ierr)
197: call PetscSleep(0.8*second, ierr)
198: call PetscLogEventEnd(PlayBall,ierr)
199: end if
201: call PetscLogEventBegin(Lessons,ierr)
202: call PetscLogFlops(120000d0,ierr)
203: call PetscSleep(0.7*second, ierr)
204: call PetscLogEventEnd(Lessons,ierr)
206: call PetscSleep(0.25*second,ierr)
208: call PetscLogEventBegin(Morning,ierr)
210: call PetscLogFlops(190000d0,ierr)
211: call PetscSleep(0.5*second,ierr)
213: call PetscLogEventBegin(Lessons,ierr)
214: call PetscLogFlops(23000d0,ierr)
215: call PetscSleep(1*second, ierr)
216: if (size>1) then
217: call MPI_Isend( message, msgLen, MPI_DOUBLE_PRECISION, &
218: & mod(rank+1,size), &
219: & tagMsg+rank, PETSC_COMM_WORLD, req, ierr)
220: call MPI_Recv( message, msgLen, MPI_DOUBLE_PRECISION, &
221: & mod(rank-1+size,size), &
222: & tagMsg+mod(rank-1+size,size), PETSC_COMM_WORLD, &
223: & status, ierr)
224: call MPI_Wait(req,MPI_STATUS_IGNORE,ierr)
225: end if
226: call PetscLogEventEnd(Lessons,ierr)
228: if (role==TEACHER) then
229: call PetscLogEventBegin(TidyClass,ierr)
230: call PetscLogFlops(600000d0,ierr)
231: call PetscSleep(1.2*second, ierr)
232: call PetscLogEventEnd(TidyClass,ierr)
233: else if (role==BOY) then
234: call PetscLogEventBegin(SkipRope,ierr)
235: call PetscSleep(0.8*second, ierr)
236: call PetscLogEventEnd(SkipRope,ierr)
237: else
238: call PetscLogEventBegin(PlayBall,ierr)
239: call PetscSleep(0.9*second, ierr)
240: call PetscLogEventEnd(PlayBall,ierr)
241: end if
243: call PetscLogEventBegin(Lessons,ierr)
244: call PetscLogFlops(120000d0,ierr)
245: call PetscSleep(0.7*second, ierr)
246: call PetscLogEventEnd(Lessons,ierr)
248: call PetscLogEventEnd(Morning,ierr)
250: deallocate(message)
252: call PetscFinalize(ierr)
254: end program SchoolDay
256: !/*TEST
257: !
258: ! testset:
259: ! args: -log_view ascii:filename.txt
260: ! output_file: output/ex1f.out
261: ! test:
262: ! suffix: 1
263: ! nsize: 1
264: ! test:
265: ! suffix: 2
266: ! nsize: 2
267: ! test:
268: ! suffix: 3
269: ! nsize: 3
270: !
271: ! testset:
272: ! suffix: detail
273: ! args: -log_view ascii:filename.txt:ascii_info_detail
274: ! output_file: output/ex1f.out
275: ! test:
276: ! suffix: 1
277: ! nsize: 1
278: ! test:
279: ! suffix: 2
280: ! nsize: 2
281: ! test:
282: ! suffix: 3
283: ! nsize: 3
284: !
285: ! testset:
286: ! suffix: xml
287: ! args: -log_view ascii:filename.xml:ascii_xml
288: ! output_file: output/ex1f.out
289: ! test:
290: ! suffix: 1
291: ! nsize: 1
292: ! test:
293: ! suffix: 2
294: ! nsize: 2
295: ! test:
296: ! suffix: 3
297: ! nsize: 3
298: !
299: !TEST*/