txdy827@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.
/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. thank you for your help!