[petsc-users] Something went wrong with PETSc after installing ParaView

[Matthew Knepley]

On Sun, Aug 6, 2023 at 3:03 AM K. Wu <wuktsinghua at gmail.com> wrote:

> Dear Matthew,
>
> Thanks for your kind help, please see in attachment the configure.log file
> for PETSc.
>

Okay, you told PETSc to build MPICH, so you should use

  /lhome/kai/Documents/petsc/linux-c-debug-directsolver/bin/mpiexec -n
<nproc> ./myprog

It shows this is the report at the end of the log.

  Thanks,

     Matt

Regards,
> Kai
>
> Matthew Knepley <knepley at gmail.com> 于2023年8月5日周六 16:19写道：
>
>> On Sat, Aug 5, 2023 at 10:10 AM K. Wu <wuktsinghua at gmail.com> wrote:
>>
>>> Dear Matthew,
>>>
>>> Thanks for your reply!
>>>
>>> Is there any way that I can choose to use the previous MPI installation
>>> used to build PETSc?
>>>
>>
>> First we would need to know what that was. You can send configure.log,
>> which will have that information in it.
>>
>>   Thanks,
>>
>>      Matt
>>
>>
>>> Regards,
>>> Kai
>>>
>>> Matthew Knepley <knepley at gmail.com> 于2023年8月5日周六 14:23写道：
>>>
>>>> On Sat, Aug 5, 2023 at 3:22 AM K. Wu <wuktsinghua at gmail.com> wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> Good day!
>>>>>
>>>>> After installing ParaView on my desktop, PETSc starts to work
>>>>> anomalously even after reconfiguration:
>>>>> 1. If I use mpirun (frequently used before), it seems that now all the
>>>>> processors will run the program independently without communication. While
>>>>> mpiexec seems to work properly.
>>>>>
>>>>
>>>> Yes, this indicates that the "mpirun" is from a different installation
>>>> of MPI than "mpiexec", which seems to be from the MPI installation used to
>>>> build PETSc. Probably the Paraview package installed its own MPI package.
>>>>
>>>>
>>>>>
>>>>> 2. The Makefile (as attached) which works fine before starts to
>>>>> complain:
>>>>> make: *** No rule to make target 'chkopts', needed by 'test'.  Stop.
>>>>>
>>>>
>>>> The 'chkopts' target is defined in the toplevel PETSc makefile, but it
>>>> is deprecated. You can take it out.
>>>>
>>>>   Thanks,
>>>>
>>>>      Matt
>>>>
>>>>
>>>>> Thanks for your kind help!
>>>>>
>>>>> Best regards,
>>>>> Kai
>>>>>
>>>>>
>>>>> PETSC_DIR=~/petsc
>>>>> PETSC_ARCH=arch-linux-c-debug
>>>>> CFLAGS = -I.
>>>>> FFLAGS=
>>>>> CPPFLAGS=-I.
>>>>> FPPFLAGS=
>>>>> LOCDIR=
>>>>> EXAMPLESC=
>>>>> EXAMPLESF=
>>>>> MANSEC=
>>>>> CLEANFILES=
>>>>> NP=
>>>>>
>>>>>
>>>>> include ${PETSC_DIR}/lib/petsc/conf/variables
>>>>> include ${PETSC_DIR}/lib/petsc/conf/rules
>>>>> include ${PETSC_DIR}/lib/petsc/conf/test
>>>>>
>>>>> test: ex2-2.o chkopts
>>>>> rm -rf topopt
>>>>> -${CLINKER} -o test ex2-2.o ${PETSC_SYS_LIB}
>>>>> ${RM} ex2-2.o
>>>>> rm -rf *.o
>>>>>
>>>>
>>>>
>>>> --
>>>> 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/>
>>>>
>>>
>>
>> --
>> 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/>
>>
>

-- 
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/>
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