[petsc-dev] Compiling PETsc against openblas on Linux

[Satish Balay]

It should work. configure.log will have details..

Satish

----------

balay at asterix /home/balay/petsc (maint=)
$ ./configure --with-blaslapack-lib=-lopenblas
===============================================================================
             Configuring PETSc to compile on your system                       
===============================================================================
===============================================================================                                                                                        It appears you do not have valgrind installed on your system.                                                                                                    We HIGHLY recommend you install it from www.valgrind.org                                                                                                         Or install valgrind-devel or equivalent using your package manager.                                                                                              Then rerun ./configure                                                                                                                                     ===============================================================================                                                                                  Compilers:                                                                                                                                                       
  C Compiler:         mpicc    -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g3 
  C++ Compiler:       mpicxx  -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g      
  Fortran Compiler:   mpif90   -Wall -ffree-line-length-0 -Wno-unused-dummy-argument -g  
Linkers:
  Shared linker:   mpicc  -shared    -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g3
  Dynamic linker:   mpicc  -shared    -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g3
make:
BLAS/LAPACK: -lopenblas
MPI:
cmake:
X:
  Library:  -lX11
c2html:
  Arch:     
pthread:
  Library:  -lpthread
PETSc:
  PETSC_ARCH: arch-linux2-c-debug
  PETSC_DIR: /home/balay/petsc
  Scalar type: real
  Precision: double
  Clanguage: C
  Integer size: 32
  shared libraries: enabled
  Memory alignment: 16
xxx=========================================================================xxx
 Configure stage complete. Now build PETSc libraries with (gnumake build):
   make PETSC_DIR=/home/balay/petsc PETSC_ARCH=arch-linux2-c-debug all
xxx=========================================================================xxx
balay at asterix /home/balay/petsc (maint=)                                                                                                                         
$ 


On Fri, 31 Aug 2018, Antonio wrote:

> It's failing for missing (not required) links:
> 
> Executing: mpicc  -o /tmp/petsc-FYncGY/config.libraries/conftest
> -Wl,-z,relro   -fPIC  -Wall -Wwrite-strings -Wno-strict-aliasing
> -Wno-unknown-pragmas -fstack-protector -fvisibility=hidden -g3
> /tmp/petsc-FYncGY/config.libraries/conftest.o  -lsunperf -lfui -lfsu
> -lsunmath -lm -lstdc++ -ldl -L/usr/lib64/openmpi/lib -lmpi_usempif08
> -lmpi_usempi_ignore_tkr -lmpi_mpifh -lmpi -lgfortran -lm
> -L/usr/lib/gcc/x86_64-redhat-linux/8 -L/usr/lib64/openmpi/lib -lgfortran
> -lm -lgcc_s -lquadmath -lpthread -lstdc++ -ldl
> Possible ERROR while running linker: exit code 256
> stderr:
> /usr/bin/ld: cannot find -lsunperf
> /usr/bin/ld: cannot find -lfui
> /usr/bin/ld: cannot find -lfsu
> /usr/bin/ld: cannot find -lsunmath
> collect2: error: ld returned 1 exit status
>                       Popping language C
>                 Unknown name mangling in BLAS/LAPACK
>               MKL Path not found.. skipping: /cygdrive/c/Program
> Files/Intel/MKL/9.0
>               MKL Path not found.. skipping: /cygdrive/c/Program
> Files/Intel/MKL/8.1.1
>               MKL Path not found.. skipping: /cygdrive/c/Program
> Files/Intel/MKL/8.1
>               MKL Path not found.. skipping: /cygdrive/c/Program
> Files/Intel/MKL/8.0.1
>               MKL Path not found.. skipping: /cygdrive/c/Program
> Files/Intel/MKL/8.0
>               MKL Path not found.. skipping: /cygdrive/c/Program
> Files/Intel/MKL72
>               MKL Path not found.. skipping: /cygdrive/c/Program
> Files/Intel/MKL70
>               MKL Path not found.. skipping: /cygdrive/c/Program
> Files/Intel/MKL61
>               MKL Path not found.. skipping: /cygdrive/c/Program
> Files/Intel/MKL
> **** Configure header /tmp/petsc-FYncGY/confdefs.h ****
> 
> On 31/08/2018 19:41, Smith, Barry F. wrote:
> > 
> >    Ah, sorry for the confusion. We do support --download-openblas where PETSc will download and install and OpenBlas for you but if you have it already installed then you need to treat it just as a BLASLAPACK library so use
> > 
> > 
> >> --with-blaslapack-include=%{_includedir} \
> >> --with-blaslapack-lib=%{_libdir}/libopenblas.so \
> >> --known-64-bit-blas-indices=0 \
> > 
> >    If this fails then mail configure.log to petsc-maint at mcs.anl.gov
> > 
> >     Barry
> > 
> 
>