[petsc-users] PETSc error only in debug build

[Pierre Jolivet]

> On 17 Apr 2023, at 6:22 PM, Matteo Semplice <matteo.semplice at uninsubria.it> wrote:
> 
> Dear PETSc users,
> 
>     I am investigating a strange error occurring when using my code on a cluster; I managed to reproduce it on my machine as well and it's weird:
> 
> - on petsc3.19, optimized build, the code runs fine, serial and parallel
> 
> - on petsc 3,19, --with=debugging=1, the code crashes without giving me a meaningful message. The output is
> 
> $ ../levelSet -options_file ../test.opts  
> Converting from ../pointClouds/2d/ptCloud_cerchio.txt in binary format: this is slow! 
> Pass in the .info file instead! 
> Read 50 particles from ../pointClouds/2d/ptCloud_cerchio.txt 
> Bounding box: [-0.665297, 0.666667] x [-0.666324, 0.666324] 
> [0]PETSC ERROR: --------------------- Error Message -------------------------------------------------------------- 
> [0]PETSC ERROR: Petsc has generated inconsistent data 
> [0]PETSC ERROR: Invalid stack size 0, pop convertCloudTxt clouds.cpp:139. 
> 
> [0]PETSC ERROR: WARNING! There are option(s) set that were not used! Could be the program crashed before they were used or a spell
> ing mistake, etc! 
> [0]PETSC ERROR:   Option left: name:-delta value: 1.0 source: file 
> [0]PETSC ERROR:   Option left: name:-dx value: 0.1 source: file 
> [0]PETSC ERROR:   Option left: name:-extraCells value: 5 source: file 
> [0]PETSC ERROR:   Option left: name:-maxIter value: 200 source: file 
> [0]PETSC ERROR:   Option left: name:-p value: 1.0 source: file 
> [0]PETSC ERROR:   Option left: name:-tau value: 0.1 source: file 
> [0]PETSC ERROR:   Option left: name:-u0tresh value: 0.3 source: file 
> [0]PETSC ERROR: See https://petsc.org/release/faq/ for trouble shooting. 
> [0]PETSC ERROR: Petsc Release Version 3.19.0, unknown  
> [0]PETSC ERROR: ../levelSet on a  named signalkuppe by matteo Mon Apr 17 18:04:03 2023 
> [0]PETSC ERROR: Configure options --download-ml \ --with-metis --with-parmetis \ --download-hdf5 \ --with-triangle --with-gmsh \ P
> ETSC_DIR=/home/matteo/software/petsc --PETSC_ARCH=dbg --with-debugging=1 --COPTFLAGS=-O --CXXOPTFLAGS=-O --FOPTFLAGS=-O --prefix=/
> home/matteo/software/petsc/3.19-dbg/ 
> [0]PETSC ERROR: #1 convertCloudTxt() at clouds.cpp:139 
> -------------------------------------------------------------------------- 
> MPI_ABORT was invoked on rank 0 in communicator MPI_COMM_SELF 
> with errorcode 77. 
> 
> NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes. 
> You may or may not see output from other processes, depending on 
> exactly when Open MPI kills them. 
> --------------------------------------------------------------------------
> 
> Now, line 139 of clouds.cpp is PetscFunctionReturn(PETSC_SUCCESS), so I cannot understand what is the offending operation in that routine. (Note: this is a convertion routine and, skipping it, just make the next routine fail in a similar way...)
> 
> My student has also tried to compile PETSc with --with-strict-petscerrorcode and fixing all the compilation errors that were raised, but it didn't help.
> 
> Do you have any guess on what to look for?
> 
There may be a PetscFunctionBeginUser; missing at the beginning of the convertCloudTxt() function.
Could you double-check this?

Thanks,
Pierre
> Bonus question to assess the cluster output what is the default value for --with-debugging? I that option is not specified during PETSc configure, does one get optimized or debug build?
> 
> Thanks
> 
>     Matteo
> 
> -- 
> Professore Associato in Analisi Numerica
> Dipartimento di Scienza e Alta Tecnologia
> Università degli Studi dell'Insubria
> Via Valleggio, 11 - Como

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