Probably best if you can use the same version of gfortran to build both petsc and libflame/blis
> /usr/bin/ld: warning: libgfortran.so.5, needed by > /opt/amd/amd-libflame-3.1.0/lib/lp64/libflame.so, not found (try using -rpath > or -rpath-link): This is probably an ignore-able warning - but configure defaults to -Werror mode here. Wrt forcing link with static libraries - you can try: LIBS="/opt/amd/amd-libflame-3.1.0/lib/lp64/libflame.a /opt/amd/amd-blis-3.1.0/lib/lp64/libblis.a" [instead of --with-blas-lib= --with-lapack-lib= options]. Satish On Fri, 4 Feb 2022, Barry Smith wrote: > > Please do > > ldd -O /opt/amd/amd-libflame-3.1.0/lib/lp64/libflame.so > > You may need to list the gfortran library directory of libgfortran.so.5 it > needs to use in LDFLAGS passed to PETSc configure > > Barry > > Note: Even though you explicitly listed a static library of libflame to use > our configure is goofy and loses that information and wants to link with the > shared version > > > > On Feb 4, 2022, at 12:00 PM, Anton Popov <[email protected]> wrote: > > > > > > > > On 04.02.22 17:39, Matthew Knepley wrote: > >> On Fri, Feb 4, 2022 at 11:35 AM Anton Popov <[email protected] > >> <mailto:[email protected]>> wrote: > >> Hi Satish, > >> > >> I just discovered that PETSc 3.16.4 fails to link against the latest AMD > >> BLIS and LibFLAME libraries on a Linux box. > >> > >> ------------------------------------------------------------------------------- > >> You set a value for --with-blas-lib=<lib> and --with-lapack-lib=<lib>, > >> but ['/opt/amd/amd-blis-3.1.0/lib/lp64/libblis.a'] and > >> ['/opt/amd/amd-libflame-3.1.0/lib/lp64/libflame.a'] cannot be used > >> ******************************************************************************* > >> > >> My previous experience with 3.9.4 on the same system was fully > >> successful. Looking in the configure logs (attached) reveals small > >> difference in the linking compared to 3.9.4 > >> > >> Could you please make a guess what went wrong? > >> > >> Down in the log I see: > >> > >> /usr/bin/ld: warning: libgfortran.so.5, needed by > >> /opt/amd/amd-libflame-3.1.0/lib/lp64/libflame.so, not found (try using > >> -rpath or -rpath-link): > > Thanks Matt, I'll try. > > > >> > >> Did the gfortran library move or get upgraded? > > Not at all. I have configured 3.9.4 just now to make a test, and it > > perfectly finds all the libraries. So there must be something that 3.16.4 > > does differently. > > > > Best, > > > > Anton > > > >> > >> Thanks, > >> > >> Matt > >> > >> Best regards, > >> > >> Anton > >> > >> > >> -- > >> What most experimenters take for granted before they begin their > >> experiments is infinitely more interesting than any results to which their > >> experiments lead. > >> -- Norbert Wiener > >> > >> https://www.cse.buffalo.edu/~knepley/ > >> <http://www.cse.buffalo.edu/~knepley/> > >
