[petsc-dev] how to solve this problem?

[Satish Balay]

For one we haven't seen this issue before, and don't know what it causing this on your machine. [why is
/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a created in 'deterministic mode' as this message suggests].

It not clear why this warning comes up. Likely you can ignore it.

Or if you wish to debug - suggest:

- create a fresh build of petsc
- and send us the relevant logs, [configure.log, make.log]


And you are using a very old version of petsc. Suggest upgrading to current release - 3.13 - if feasible.

Satish

On Mon, 29 Jun 2020, yym wrote:

> txdy827 at ubuntu:~/software/petsc-3.8.4/src/snes/impls/ngmres$ make
> make[1]: Warning: Archive '/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a' seems to have been created in deterministic mode. 'snesngmres.o' will always be updated. Please consider passing the U flag to ar to avoid the problem.
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> /home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/bin/mpicc -o snesngmres.o -c -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g -O   -I/home/txdy827/software/petsc-3.8.4/include -I/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/include    `pwd`/snesngmres.c
> /usr/bin/ar cr /home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a snesngmres.o
> if test -n ""; then /usr/bin/ar cr  snesngmres.lo; fi
> /bin/rm -f snesngmres.o snesngmres.lo
> make[1]: Warning: Archive '/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a' seems to have been created in deterministic mode. 'snesngmres.o' will always be updated. Please consider passing the U flag to ar to avoid the problem.
> make[1]: Warning: Archive '/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a' seems to have been created in deterministic mode. 'ngmresfunc.o' will always be updated. Please consider passing the U flag to ar to avoid the problem.
> /home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/bin/mpicc -o ngmresfunc.o -c -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g -O   -I/home/txdy827/software/petsc-3.8.4/include -I/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/include    `pwd`/ngmresfunc.c
> /usr/bin/ar cr /home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a ngmresfunc.o
> if test -n ""; then /usr/bin/ar cr  ngmresfunc.lo; fi
> /bin/rm -f ngmresfunc.o ngmresfunc.lo
> make[1]: Warning: Archive '/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a' seems to have been created in deterministic mode. 'ngmresfunc.o' will always be updated. Please consider passing the U flag to ar to avoid the problem.
> make[1]: Warning: Archive '/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a' seems to have been created in deterministic mode. 'anderson.o' will always be updated. Please consider passing the U flag to ar to avoid the problem.
> /home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/bin/mpicc -o anderson.o -c -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g -O   -I/home/txdy827/software/petsc-3.8.4/include -I/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/include    `pwd`/anderson.c
> /usr/bin/ar cr /home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a anderson.o
> if test -n ""; then /usr/bin/ar cr  anderson.lo; fi
> /bin/rm -f anderson.o anderson.lo
> make[1]: Warning: Archive '/home/txdy827/software/petsc-3.8.4/arch-linux2-cxx-debug/lib/libpetsc.a' seems to have been created in deterministic mode. 'anderson.o' will always be updated. Please consider passing the U flag to ar to avoid the problem.
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> thank you for your help!