[petsc-users] linking PETSC with SSL

Thu Nov 9 05:31:12 CST 2017

Hi Satish,

I am working my way through linking our real code to PETSc 3.8.1. The
improvement for integration with Fortran is great.

use petscksp

makes a world of difference.

With compliments and thanks!
Lukas

On 11/8/17, Satish Balay <balay at mcs.anl.gov> wrote:
> Glad it works! Thanks for the update.
>
> Satish
>
> On Wed, 8 Nov 2017, Lukas van de Wiel wrote:
>
>> Ah, never mind, It works in 3.8.1!
>> Had to change my makefile also, of course... :-\
>>
>> Thanks and have a great day!
>>
>> Lukas
>>
>>
>> On 11/8/17, Lukas van de Wiel <lukas.drinkt.thee at gmail.com> wrote:
>> > Hi Satish,
>> >
>> > thank you for your quick reply!
>> >
>> > I have installed 3.8.1, but the problem persists.
>> > I have attached configure.log and test.log.
>> >
>> > Does that reveal anything?
>> >
>> > Cheers and thanks again
>> >
>> > Lukas
>> >
>> > On 11/8/17, Satish Balay <balay at mcs.anl.gov> wrote:
>> >> Hm --with-ssl=0 should work. Can you do a fresh/clean build and see if
>> >> the
>> >> problem persists?
>> >>
>> >> If so send configure.log make.log and test.log for this build.
>> >>
>> >> BTW: 3.8 has better support for fortran usage - so you might consider
>> >> upgrading all the way to it.
>> >>
>> >> https://www.mcs.anl.gov/petsc/documentation/changes/38.html
>> >> http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/Sys/UsingFortran.html#UsingFortran
>> >>
>> >> Satish
>> >>
>> >> On Wed, 8 Nov 2017, Lukas van de Wiel wrote:
>> >>
>> >>> Good day,
>> >>>
>> >>> during an upgrade of PETSc (from 3.4.2 to 3.7.7) and some changes
>> >>> needed to use MUMPs I ran into a problem with SSL that I could not
>> >>> really figure out.
>> >>>
>> >>> ********************************************************
>> >>> I have configured PETSc 3.7.7 using: (explicitly note the option
>> >>> --with-ssl=0  )
>> >>>
>> >>>
>> >>> ./configure  \
>> >>> COPTFLAGS='-O3 -march=native -mtune=native' \
>> >>> CXXOPTFLAGS='-O3 -march=native -mtune=native' \
>> >>> FOPTFLAGS='-O3 -march=native -mtune=native' \
>> >>> --with-debugging=0 \
>> >>> --with-x=0 \
>> >>> --with-ssl=0 \
>> >>> --with-shared-libraries=0 \
>> >>> --download-metis \
>> >>> --download-parmetis \
>> >>> --download-fblaslapack \
>> >>> --download-scalapack \
>> >>> --download-openmpi \
>> >>> --download-mumps \
>> >>> --download-hypre \
>> >>> --download-ptscotch
>> >>>
>> >>>
>> >>> ********************************************************
>> >>> Next I have a tiny Fortran program to illustrate the problem:
>> >>>
>> >>>
>> >>> program sslhuh
>> >>> implicit none
>> >>> #include "petsc/finclude/petscsys.h"
>> >>> write(*,*) "Hello World"
>> >>> end program
>> >>>
>> >>>
>> >>>
>> >>> ********************************************************
>> >>> I compile it using makefile:
>> >>>
>> >>>
>> >>> petscDir = /net/home/gtecton/sw_dev/petsc-3.7.7
>> >>>
>> >>> all: compile link
>> >>>
>> >>> compile: sslhuh.F
>> >>>     $(petscDir)/linux-gnu-x86_64/bin/mpif90 \
>> >>>     -c \
>> >>>     -o sslhuh.o \
>> >>>     -std=f2008 \
>> >>>     -ffree-form \
>> >>>     -I$(petscDir)/include \
>> >>>     -I$(petscDir)/include/petsc/finclude \
>> >>>     sslhuh.F
>> >>>
>> >>> link: sslhuh.o
>> >>>     $(petscDir)/linux-gnu-x86_64/bin/mpif90 \
>> >>>     -o sslhuh \
>> >>>     sslhuh.o \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libpetsc.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libHYPRE.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libzmumps.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libsmumps.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libdmumps.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libcmumps.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libmumps_common.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libesmumps.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libparmetis.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libmetis.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libpord.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libscalapack.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libflapack.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libfblas.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libptscotch.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libptscotcherr.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libptscotcherrexit.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libptscotchparmetis.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libscotch.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libscotcherr.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libscotcherrexit.a \
>> >>>     $(petscDir)/linux-gnu-x86_64/lib/libscotchmetis.a \
>> >>>     -ldl
>> >>>
>> >>>
>> >>> ********************************************************
>> >>> Compiling works fine.
>> >>> Linking gives me the error:
>> >>>
>> >>>
>> >>> /net/home/gtecton/sw_dev/petsc-3.7.7/linux-gnu-x86_64/lib/libpetsc.a(client.o):
>> >>> In function `PetscSSLInitializeContext':
>> >>> client.c:(.text+0x3b): undefined reference to `SSLv23_method'
>> >>> client.c:(.text+0x43): undefined reference to `SSL_CTX_new'
>> >>> client.c:(.text+0x5a): undefined reference to `SSL_CTX_ctrl'
>> >>> client.c:(.text+0x79): undefined reference to `SSL_library_init'
>> >>> client.c:(.text+0x7e): undefined reference to
>> >>> `SSL_load_error_strings'
>> >>> client.c:(.text+0x8c): undefined reference to `BIO_new_fp'
>> >>> /net/home/gtecton/sw_dev/petsc-3.7.7/linux-gnu-x86_64/lib/libpetsc.a(client.o):
>> >>> In function `PetscSSLDestroyContext':
>> >>> client.c:(.text+0xa5): undefined reference to `SSL_CTX_free'
>> >>> /net/home/gtecton/sw_dev/petsc-3.7.7/linux-gnu-x86_64/lib/libpetsc.a(client.o):
>> >>> In function `PetscHTTPSRequest':
>> >>> client.c:(.text+0xa9e): undefined reference to `SSL_write'
>> >>> client.c:(.text+0xaab): undefined reference to `SSL_get_error'
>> >>> client.c:(.text+0xb40): undefined reference to `SSL_read'
>> >>> client.c:(.text+0xb50): undefined reference to `SSL_get_error'
>> >>> client.c:(.text+0xbde): undefined reference to `SSL_free'
>> >>> client.c:(.text+0xc74): undefined reference to `SSL_shutdown'
>> >>> /net/home/gtecton/sw_dev/petsc-3.7.7/linux-gnu-x86_64/lib/libpetsc.a(client.o):
>> >>> In function `PetscHTTPSConnect':
>> >>> client.c:(.text+0x105c): undefined reference to `SSL_new'
>> >>> client.c:(.text+0x106a): undefined reference to `BIO_new_socket'
>> >>> client.c:(.text+0x1079): undefined reference to `SSL_set_bio'
>> >>> client.c:(.text+0x1082): undefined reference to `SSL_connect'
>> >>> collect2: ld returned 1 exit status
>> >>> make: *** [link] Error 1
>> >>>
>> >>>
>> >>> ******************************************************
>> >>>
>> >>> From what I see, the SSL functionality is in client.o, which is part
>> >>> of libpetsc.a, which is included in the linking.
>> >>>
>> >>> There is no difference in whether I turn --with-ssl on or off...
>> >>>
>> >>> Does anybody have an idea what I am doing wrong?
>> >>>
>> >>> Best wishes and thank you for your time!
>> >>>
>> >>> Lukas
>> >>>
>> >>
>> >>
>> >
>>
>
>