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

[Satish Balay]

I get the following with a debug build.

>>>>>>>>
balay at petsc-02:/scratch/balay/petsc/src/mat/tests$ make ex238
gcc -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g3  -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g3    -I/scratch/balay/petsc/include -I/scratch/balay/petsc/arch-linux-c-debug/include     ex238.c  -Wl,-rpath,/scratch/balay/petsc/arch-linux-c-debug/lib -L/scratch/balay/petsc/arch-linux-c-debug/lib -Wl,-rpath,/usr/lib/gcc/x86_64-linux-gnu/7 -L/usr/lib/gcc/x86_64-linux-gnu/7 -Wl,-rpath,/usr/lib/x86_64-linux-gnu -L/usr/lib/x86_64-linux-gnu -Wl,-rpath,/lib/x86_64-linux-gnu -L/lib/x86_64-linux-gnu -lpetsc -llapack -lblas -lpthread -lm -lX11 -lstdc++ -ldl -lgfortran -lm -lgfortran -lm -lgcc_s -lquadmath -lstdc++ -ldl -o ex238
balay at petsc-02:/scratch/balay/petsc/src/mat/tests$ valgrind --tool=memcheck  ./ex238 -mat_block_size 12
==34355== Memcheck, a memory error detector
==34355== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==34355== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==34355== Command: ./ex238 -mat_block_size 12
==34355== 
==34355== Warning: set address range perms: large range [0x59e43040, 0xb696a840) (undefined)
<<<<<<<<

Hang? takes a long time.  try a different example

>>>>>>
balay at petsc-02:/scratch/balay/petsc/src/mat/tests$ make ex237
gcc -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g3  -fPIC -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g3    -I/scratch/balay/petsc/include -I/scratch/balay/petsc/arch-linux-c-debug/include     ex237.c  -Wl,-rpath,/scratch/balay/petsc/arch-linux-c-debug/lib -L/scratch/balay/petsc/arch-linux-c-debug/lib -Wl,-rpath,/usr/lib/gcc/x86_64-linux-gnu/7 -L/usr/lib/gcc/x86_64-linux-gnu/7 -Wl,-rpath,/usr/lib/x86_64-linux-gnu -L/usr/lib/x86_64-linux-gnu -Wl,-rpath,/lib/x86_64-linux-gnu -L/lib/x86_64-linux-gnu -lpetsc -llapack -lblas -lpthread -lm -lX11 -lstdc++ -ldl -lgfortran -lm -lgfortran -lm -lgcc_s -lquadmath -lstdc++ -ldl -o ex237
balay at petsc-02:/scratch/balay/petsc/src/mat/tests$ valgrind --tool=memcheck -q ./ex237 -f /scratch/balay/petsc/share/petsc/datafiles/matrices/spd-real-int32-float64
Benchmarking MatMult: with A seqaij 12x12
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x2
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x4
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x8
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x16
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x32
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x64
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x128
balay at petsc-02:/scratch/balay/petsc/src/mat/tests$ 

<<<<<<<<<

So the likely issue is - this opt build with '-march=native' [perhaps this valgrind version is older than the cpu].

Ok try an optimized build on an older CPU - aka  es [@gce]

>>>>>

balay at es:/scratch/balay/petsc/src/mat/tests$ 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/balay/petsc/include -I/scratch/balay/petsc/arch-linux-c-opt/include     ex237.c  -Wl,-rpath,/scratch/balay/petsc/arch-linux-c-opt/lib -L/scratch/balay/petsc/arch-linux-c-opt/lib -Wl,-rpath,/usr/lib/gcc/x86_64-linux-gnu/7 -L/usr/lib/gcc/x86_64-linux-gnu/7 -Wl,-rpath,/usr/lib/x86_64-linux-gnu -L/usr/lib/x86_64-linux-gnu -Wl,-rpath,/lib/x86_64-linux-gnu -L/lib/x86_64-linux-gnu -lpetsc -llapack -lblas -lpthread -lm -lX11 -lstdc++ -ldl -lgfortran -lm -lgfortran -lm -lgcc_s -lquadmath -lstdc++ -ldl -o ex237
balay at es:/scratch/balay/petsc/src/mat/tests$ valgrind --tool=memcheck -q ./ex237 -f /scratch/balay/petsc/share/petsc/datafiles/matrices/spd-real-int32-float64
Benchmarking MatMult: with A seqaij 12x12
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x2
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x4
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x8
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x16
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x32
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x64
Benchmarking MatProduct AB: with A seqaij 12x12 and B seqdense 12x128
balay at es:/scratch/balay/petsc/src/mat/tests$ 

<<<<<<<

Satish



On Mon, 22 Feb 2021, Barry Smith wrote:

> 
>   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
> 
>