It's not the most satisfying solution but you can also pretty quickly generate and use suppression files to at least de-clutter the output: https://valgrind.org/docs/manual/manual-core.html#manual-core.suppress
Am Di., 2. Juni 2020 um 18:59 Uhr schrieb Satish Balay via petsc-dev < petsc-dev@mcs.anl.gov>: > MPICH need to be built with the option --enable-g=meminit for it to be > valgrind clean. > > --download-mpich does this [among other things that are useful during > software developement]. Pre-configured MPICH is not likely to do this. > > You can verify with: mpichversion > > You can prebuild MPICH using PETSc with: > > ./configure --prefix=$HOME/soft/mpich --download-mpich CFLAGS= FFLAGS= > CXXFLAGS= COPTFLAGS= CXXOPTFLAGS= FOPTFLAGS= > > And make this your default pre-installed MPI. [by adding $HOME/soft/mpich > to PATH] > > Satish > > > On Tue, 2 Jun 2020, Jacob Faibussowitsch wrote: > > > Yes I am using the pre-loaded MPICH from the docker image. Further proof > from configure > > > > #define PETSC_HAVE_MPICH_NUMVERSION 30302300 > > #define PETSC_HAVE_MPIEXEC_ENVIRONMENTAL_VARIABLE MPIR_CVAR_CH3 > > > > Best regards, > > > > Jacob Faibussowitsch > > (Jacob Fai - booss - oh - vitch) > > Cell: (312) 694-3391 > > > > > On Jun 2, 2020, at 11:35 AM, Junchao Zhang <junchao.zh...@gmail.com> > wrote: > > > > > > I guess Jacob already used MPICH, since > MPIDI_CH3_EagerContigShortSend() is from MPICH. > > > > > > --Junchao Zhang > > > > > > > > > On Tue, Jun 2, 2020 at 9:38 AM Satish Balay via petsc-dev < > petsc-dev@mcs.anl.gov <mailto:petsc-dev@mcs.anl.gov>> wrote: > > > use --download-mpich for valgrind. > > > > > > https://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind < > https://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind> > > > > > > Satish > > > > > > On Tue, 2 Jun 2020, Karl Rupp wrote: > > > > > > > Hi Jacob, > > > > > > > > the recommendation in the past was to use MPICH as it is (was?) > > > > valgrind-clean. Which MPI do you use? OpenMPI used to have these > kinds of > > > > issues. (My information might be outdated) > > > > > > > > Best regards, > > > > Karli > > > > > > > > On 6/2/20 2:43 AM, Jacob Faibussowitsch wrote: > > > > > Hello All, > > > > > > > > > > TL;DR: valgrind always complains about "Syscall param write(buf) > points to > > > > > uninitialised byte(s)” for a LOT of MPI operations in petsc code, > making > > > > > debugging using valgrind fairly annoying since I have to sort > through a ton > > > > > of unrelated stuff. I have built valgrind from source, used apt > install > > > > > valgrind, apt install valgrind-mpi to no avail. > > > > > > > > > > I am using valgrind from docker. Dockerfile is attached below as > well. I > > > > > have been unsuccessfully trying to resolve these local valgrind > errors, but > > > > > I am running out of ideas. Googling the issue has also not > provided entirely > > > > > applicable solutions. Here is an example of the error: > > > > > > > > > > $ make -f gmakefile test VALGRIND=1 > > > > > ... > > > > > #==54610== Syscall param write(buf) points to uninitialised byte(s) > > > > > #==54610== at 0x6F63317: write (write.c:26) > > > > > #==54610== by 0x9056AC9: MPIDI_CH3I_Sock_write (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x9059FCD: MPIDI_CH3_iStartMsg (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x903F298: MPIDI_CH3_EagerContigShortSend (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x9049479: MPID_Send (in > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x8FC9B2A: MPIC_Send (in > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x8F86F2E: MPIR_Bcast_intra_binomial (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x8EE204E: MPIR_Bcast_intra_auto (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x8EE21F4: MPIR_Bcast_impl (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x8F887FB: MPIR_Bcast_intra_smp (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x8EE206E: MPIR_Bcast_intra_auto (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x8EE21F4: MPIR_Bcast_impl (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x8EE2A6F: PMPI_Bcast (in > /usr/local/lib/libmpi.so.12.1.8) > > > > > #==54610== by 0x4B377B8: PetscOptionsInsertFile (options.c:525) > > > > > #==54610== by 0x4B39291: PetscOptionsInsert (options.c:672) > > > > > #==54610== by 0x4B5B1EF: PetscInitialize (pinit.c:996) > > > > > #==54610== by 0x10A6BA: main (ex9.c:75) > > > > > #==54610== Address 0x1ffeffa944 is on thread 1's stack > > > > > #==54610== in frame #3, created by MPIDI_CH3_EagerContigShortSend > (???:) > > > > > #==54610== Uninitialised value was created by a stack allocation > > > > > #==54610== at 0x903F200: MPIDI_CH3_EagerContigShortSend (in > > > > > /usr/local/lib/libmpi.so.12.1.8) > > > > > > > > > > There are probably 20 such errors every single time, regardless of > what code > > > > > is being run. I have tried using apt install valgrind, apt install > > > > > valgrind-mpi, and building valgrind from source: > > > > > > > > > > # VALGRIND > > > > > WORKDIR / > > > > > RUN git clone git://sourceware.org/git/valgrind.git < > http://sourceware.org/git/valgrind.git> > > > > > WORKDIR /valgrind > > > > > RUN git pull > > > > > RUN ./autogen.sh > > > > > RUN ./configure --with-mpicc=/usr/local/bin/mpicc > > > > > RUN make -j 5 > > > > > RUN make install > > > > > > > > > > None of the those approaches lead to these errors disappearing. > Perhaps I am > > > > > missing some funky MPI args? > > > > > > > > > > Best regards, > > > > > > > > > > Jacob Faibussowitsch > > > > > (Jacob Fai - booss - oh - vitch) > > > > > Cell: (312) 694-3391 > > > > > > > > > > > > > > > > > > > > > > >