[petsc-dev] valgrind now a point of failure?

[Stefano Zampini]

Valgrind does not play well with optimization flags. It's either 03 or
march=native.

Il Mar 23 Feb 2021, 06:38 Barry Smith <bsmith at petsc.dev> ha scritto:

>
>   I knew they hate Macs but now Linux? Any trustworthy machines to run
> valgrind?
>
>
> $ petscmpiexec -valgrind -n 1 ./ex238 -mat_block_size 12
> ==14144==
> ==14144== Process terminating with default action of signal 4 (SIGILL)
> ==14144==  Illegal opcode at address 0x4F808A9
> ==14144==    at 0x4F808A9: PetscSetDisplay (in
> /scratch/bsmith/petsc/arch-add-baij-12/lib/libpetsc.so.3.014.4)
> ==14144==    by 0x4F086BD: PetscOptionsCheckInitial_Private (in
> /scratch/bsmith/petsc/arch-add-baij-12/lib/libpetsc.so.3.014.4)
> ==14144==    by 0x4F0D5BC: PetscInitialize (in
> /scratch/bsmith/petsc/arch-add-baij-12/lib/libpetsc.so.3.014.4)
> ==14144==    by 0x108D0E: main (in
> /scratch/bsmith/petsc/src/mat/tests/ex238)
> Illegal instruction (core dumped)
> /scratch/bsmith/petsc/src/mat/tests* (barry/2021-02-12/add-baij-12=)*
> arch-add-baij-12
> $ echo $PETSC_OPTIONS
>
> /scratch/bsmith/petsc/src/mat/tests* (barry/2021-02-12/add-baij-12=)*
> arch-add-baij-12
> $ hostname
> petsc-02
> /scratch/bsmith/petsc/src/mat/tests* (barry/2021-02-12/add-baij-12=)*
> arch-add-baij-12
> $ uname -a
> Linux petsc-02 4.15.0-135-generic #139-Ubuntu SMP Mon Jan 18 17:38:24 UTC
> 2021 x86_64 x86_64 x86_64 GNU/Linux
> /scratch/bsmith/petsc/src/mat/tests* (barry/2021-02-12/add-baij-12=)*
> arch-add-baij-12
> $ which valgrind
> /usr/bin/valgrind
>
> $ make ex237
> gcc -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas
> -fstack-protector -fvisibility=hidden -march=native -O3  -fPIC -Wall
> -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector
> -fvisibility=hidden -march=native -O3    -I/scratch/bsmith/petsc/include
> -I/scratch/bsmith/petsc/arch-add-baij-12/include     ex237.c
> -Wl,-rpath,/scratch/bsmith/petsc/arch-add-baij-12/lib
> -L/scratch/bsmith/petsc/arch-add-baij-12/lib -lpetsc -llapack -lblas
> -lpthread -lm -lX11 -lquadmath -ldl -o ex237
> /scratch/bsmith/petsc/src/mat/tests* (barry/2021-02-12/add-baij-12=)*
> arch-add-baij-12
> $ petscmpiexec -valgrind -n 1 ./ex237
> ==14841==
> ==14841== Process terminating with default action of signal 4 (SIGILL)
> ==14841==  Illegal opcode at address 0x4F808A9
> ==14841==    at 0x4F808A9: PetscSetDisplay (in
> /scratch/bsmith/petsc/arch-add-baij-12/lib/libpetsc.so.3.014.4)
> ==14841==    by 0x4F086BD: PetscOptionsCheckInitial_Private (in
> /scratch/bsmith/petsc/arch-add-baij-12/lib/libpetsc.so.3.014.4)
> ==14841==    by 0x4F0D5BC: PetscInitialize (in
> /scratch/bsmith/petsc/arch-add-baij-12/lib/libpetsc.so.3.014.4)
> ==14841==    by 0x109DE0: main (in
> /scratch/bsmith/petsc/src/mat/tests/ex237)
> Illegal instruction (core dumped)
> /scratch/bsmith/petsc/src/mat/tests* (barry/2021-02-12/add-baij-12=)*
> arch-add-baij-12
>
>
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