[petsc-users] petsc-users Digest, Vol 200, Issue 3

[Barry Smith]

   "I have tried the options ex5f, but getting the same error."

   So you did 

    cd src/snes/tutorials/
    make ex5f

    and got some errors? Please cut and paste all the output from make ex5f and sent it here.



> On Aug 4, 2025, at 11:15 AM, kiran hegde <kiranhegde75 at gmail.com> wrote:
> 
> Hi Satish,
> 
> I have tried the options ex5f, but getting the same error.
> The code was running without any issues long back and I was using  petsc ver 3.9 using gcc 12.X.X.
> My makefile flags are :
> 
> FFLAGS = -march=native -O3 -pipe -ffree-form -cpp -ffree-line-length-none \
>                         -Wall -Wextra -Wtabs -Wintrinsics-std -Wsurprising -Waliasing \
>                         -Wno-unused-parameter -Wno-unused-dummy-argument \
>                         -D$(MODEL) \
>                         -DVERSION=\"$(GIT_VERSION)\" \
>                         -I$(PETSC_DIR)/include
> FPPFLAGS = -cpp -E -dM -C -P -D$(MODEL)
> LDFLAGS = -lpetsc -L$(PETSC_DIR)/lib
> LDFLAGS += -Wl,-rpath=$(PETSC_DIR)/lib
> 
> Have i missed anything? 
> 
> 
> Regards,
> Kiran
> 
> 
> 
> 
> On Sun, Aug 3, 2025 at 9:56 PM Satish Balay <balay.anl at fastmail.org <mailto:balay.anl at fastmail.org>> wrote:
>> On Sun, 3 Aug 2025, kiran hegde wrote:
>> 
>> > Hi,
>> > 
>> > Please find the attached configure.log file.
>> > PETSC installation successfully completes with make check, without any
>> > error.
>> > But, when compiling fortan codes with   petsc  library+include in the
>> > makefile i get this error.
>> 
>> Then likely your compile command is missing some options. you can:
>> 
>> - compile a petsc example - say:
>> cd src/snes/tutorials
>> make ex5f
>> 
>> - now compile your application
>> 
>> - And compare the compile commands and see if there are any differences (missing options, wrong order of include files etc..)
>> 
>> Satish
> 
> 
> 
> --
> Regards,
> 
> Kiran Hegde
> Mobile:+91 9972600235

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