[petsc-dev] plex test examples give different partitionings than output file even with simple partitioner? WTF
Barry Smith
bsmith at mcs.anl.gov
Mon Feb 6 18:30:30 CST 2017
Matt,
How come? I check and it is using the simple partitioner and no random number generator is called. How come when I run it it gives a different partitioning than in the output file? The vectors also have different partitionings. Are the output files out of date?
~/Src/petsc/src/dm/impls/plex/examples/tests (knepley/feature-plex-tests-new=) arch-double
$ petscmpiexec -n 2 ./ex15 -verbose -globaltonatural_sf_view > joe
~/Src/petsc/src/dm/impls/plex/examples/tests (knepley/feature-plex-tests-new=) arch-double
$ paste output/ex15_0.out joe | more
PetscSF Object: 2 MPI processes PetscSF Object: 2 MPI processes
type not yet set type not yet set
[0] Number of roots=6, leaves=6, remote ranks=1 [0] Number of roots=4, leaves=4, remote ranks=2
[0] 0 <- (1,0) [0] 0 <- (0,0)
[0] 1 <- (1,1) [0] 1 <- (0,1)
[0] 2 <- (1,2) [0] 2 <- (1,0)
[0] 3 <- (1,3) [0] 3 <- (1,1)
[0] 4 <- (1,4) [1] Number of roots=14, leaves=14, remote ranks=2
[0] 5 <- (1,5) [1] 0 <- (1,2)
[1] Number of roots=12, leaves=12, remote ranks=2 [1] 1 <- (1,3)
[1] 0 <- (1,6) [1] 2 <- (0,2)
[1] 1 <- (1,7) [1] 3 <- (0,3)
[1] 2 <- (1,8) [1] 4 <- (1,4)
[1] 3 <- (1,9) [1] 5 <- (1,5)
[1] 4 <- (0,0) [1] 6 <- (1,6)
[1] 5 <- (0,1) [1] 7 <- (1,7)
[1] 6 <- (1,10) [1] 8 <- (1,8)
[1] 7 <- (1,11) [1] 9 <- (1,9)
[1] 8 <- (0,2) [1] 10 <- (1,10)
[1] 9 <- (0,3) [1] 11 <- (1,11)
[1] 10 <- (0,4) [1] 12 <- (1,12)
[1] 11 <- (0,5) [1] 13 <- (1,13)
==== original V in global ordering. size==18 block size=2 ==== original V in global ordering. size==18 block size=2
Vec Object: V 2 MPI processes Vec Object: V 2 MPI processes
type: mpi type: mpi
Process [0] Process [0]
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