Mark, Are you getting this with PETSc 3.7.5 ? Is the code valgrinded?
> On Mar 8, 2017, at 6:27 PM, Mark Adams <[email protected]> wrote: > > On Wed, Mar 8, 2017 at 4:57 PM, Richard Mills <[email protected]> wrote: >> Hi Mark, >> >> Is your application threaded? I seem to recall having seen these "Logging >> event had unbalanced begin/end pairs" with threaded codes that call PETSc. > > It is OMP threaded, but it should certainly not call PETSc inside of a > thread loop... but this does look like something that threading could > cause. > > >> >> --Richard >> >> On Wed, Mar 8, 2017 at 1:33 PM, Mark Adams <[email protected]> wrote: >>> >>> Our code is having scaling problems on KNL (Cori), when we get up to >>> about 1K sockets. >>> >>> We have isolated the problem to a certain VecScatter. This code stores >>> the data redundantly. Scattering into the solver is just a local copy, >>> but scattering out requires that each process send all of its data to >>> every other process. It is this second one that is not scaling well. >>> >>> I wish I had more data, but this is urgent, jobs are in the queue, but >>> this is all I have. Any recommendation for parameters that we might >>> test while we get more data? >>> >>> Also, we got this error with -log_view. >>> >>> I've updated their PETSc with maint and we are waiting for it to run >>> again. Apparently this was not on the first time step, so the code >>> seems to have run for a while with what looks to me like a logic bug. >>> >>> Thanks, >>> Mark >>> >>> >>> [4098]PETSC ERROR: --------------------- Error Message >>> -------------------------------------------------------------- >>> [4098]PETSC ERROR: Object is in wrong state >>> [4098]PETSC ERROR: Logging event had unbalanced begin/end pairs >>> [4098]PETSC ERROR: See >>> http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble >>> shooting. >>> [4098]PETSC ERROR: Petsc Release Version 3.6.3, unknown >>> [4098]PETSC ERROR: /global/cscratch1/sd/worleyph/XGC1_KNL/xgc2 on a >>> v3.6.3-arch-knl-opt64-intel named nid05668 by worleyph Mon Mar 6 >>> 11:33:19 2017 >>> [4098]PETSC ERROR: Configure options COPTFLAGS="-g -O3 -fp-model fast >>> -xMIC-AVX512 -DX2_HAVE_INTEL" CXXOPTFLAGS="-g -O3 -fp-model fast >>> -xMIC-AVX512\ >>> -DX2_HAVE_INTEL" FOPTFLAGS="-g -O3 -fp-model fast -xMIC-AVX512 >>> -DX2_HAVE_INTEL" --download-metis=1 --download-parmetis=1 >>> --with-blas-lapack-dir=/g\ >>> >>> lobal/common/cori/software/intel/compilers_and_libraries_2017.0.098/linux/mkl >>> --with-cc=cc --with-cxx=cc --with-debugging=0 --with-fc=ftn --with-mp\ >>> iexec=srun --with-batch=0 --with-memalign=64 --with-64-bit-indices >>> --known-mpi-shared-libraries=1 PETSC_ARCH=v3.6.3-arch-knl-opt64-intel >>> --with-ope\ >>> nmp=1 PETSC_DIR=/global/homes/t/tkoskela/git/petsc >>> [4098]PETSC ERROR: #1 PetscLogEventEndDefault() line 696 in >>> /global/u2/t/tkoskela/git/petsc/src/sys/logging/utils/eventlog.c >>> [4098]PETSC ERROR: #2 VecSet() line 577 in >>> /global/u2/t/tkoskela/git/petsc/src/vec/vec/interface/rvector.c >>> [4098]PETSC ERROR: #3 VecCreate_Seq() line 44 in >>> /global/u2/t/tkoskela/git/petsc/src/vec/vec/impls/seq/bvec3.c >>> [4098]PETSC ERROR: #4 VecSetType() line 53 in >>> /global/u2/t/tkoskela/git/petsc/src/vec/vec/interface/vecreg.c >>> [4098]PETSC ERROR: #5 VecDuplicate_Seq() line 786 in >>> /global/u2/t/tkoskela/git/petsc/src/vec/vec/impls/seq/bvec2.c >>> [4098]PETSC ERROR: #6 VecDuplicate() line 399 in >>> /global/u2/t/tkoskela/git/petsc/src/vec/vec/interface/vector.c >>> [4098]PETSC ERROR: #7 VecDuplicateVecs_Default() line 840 in >>> /global/u2/t/tkoskela/git/petsc/src/vec/vec/interface/vector.c >>> [4098]PETSC ERROR: #8 VecDuplicateVecs() line 473 in >>> /global/u2/t/tkoskela/git/petsc/src/vec/vec/interface/vector.c >> >>
