Hi Daniel,
Thank you, I used mpicc to compile. Replace NULL by nullptr won't help
because compiler can not recognize nullptr neither.
On Saturday, October 28, 2017 at 1:21:25 PM UTC-5, Daniel Arndt wrote:
>
> Michael,
>
> are actually compiling with a MPI compiler?
> Does replacing NULL by nullptr help?
>
> Best,
> Daniel
>
> Am Samstag, 28. Oktober 2017 01:52:24 UTC+2 schrieb Michael:
>>
>> Thanks for your reply. I did install mpich_3.2-7_amd64.deb before. When I
>> tried your simple mpi example, I can not even compile it and the the error
>> is:
>>
>> hello.c: In function ‘main’:
>> hello.c:3:5: warning: implicit declaration of function ‘MPI_Init’
>> [-Wimplicit-function-declaration]
>> MPI_Init(NULL, NULL);
>> ^~~~~~~~
>> hello.c:3:14: error: ‘NULL’ undeclared (first use in this function)
>> MPI_Init(NULL, NULL);
>> ^~~~
>> hello.c:3:14: note: each undeclared identifier is reported only once for
>> each function it appears in
>> hello.c:7:5: warning: implicit declaration of function ‘MPI_Comm_size’
>> [-Wimplicit-function-declaration]
>> MPI_Comm_size(MPI_COMM_WORLD, &world_size);
>> ^~~~~~~~~~~~~
>> hello.c:7:19: error: ‘MPI_COMM_WORLD’ undeclared (first use in this
>> function)
>> MPI_Comm_size(MPI_COMM_WORLD, &world_size);
>> ^~~~~~~~~~~~~~
>> hello.c:11:5: warning: implicit declaration of function ‘MPI_Comm_rank’
>> [-Wimplicit-function-declaration]
>> MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);
>> ^~~~~~~~~~~~~
>> hello.c:14:25: error: ‘MPI_MAX_PROCESSOR_NAME’ undeclared (first use in
>> this function)
>> char processor_name[MPI_MAX_PROCESSOR_NAME];
>> ^~~~~~~~~~~~~~~~~~~~~~
>> hello.c:16:5: warning: implicit declaration of function
>> ‘MPI_Get_processor_name’ [-Wimplicit-function-declaration]
>> MPI_Get_processor_name(processor_name, &name_len);
>> ^~~~~~~~~~~~~~~~~~~~~~
>> hello.c:19:5: warning: implicit declaration of function ‘printf’
>> [-Wimplicit-function-declaration]
>> printf("Hello world from processor %s, rank %d"
>> ^~~~~~
>> hello.c:19:5: warning: incompatible implicit declaration of built-in
>> function ‘printf’
>> hello.c:19:5: note: include ‘<stdio.h>’ or provide a declaration of
>> ‘printf’
>> hello.c:24:5: warning: implicit declaration of function ‘MPI_Finalize’
>> [-Wimplicit-function-declaration]
>> MPI_Finalize();
>> ^~~~~~~~~~~~
>> <builtin>: recipe for target 'hello.o' failed
>> make: *** [hello.o] Error 1
>>
>> Not sure if this is because of I didn't install mpi package correctly
>> which was installed by ubuntu software manager.
>>
>>
>> On Friday, October 27, 2017 at 12:57:55 PM UTC-5, Timo Heister wrote:
>>>
>>> Well, do you have more than one MPI library installed? If yes, you
>>> need to address that by removing one of them.
>>>
>>> You can check if a simple hello world MPI program compiles and runs
>>> correctly. See for example
>>>
>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__mpitutorial.com_tutorials_mpi-2Dhello-2Dworld_&d=DwIBaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=xqP0pwi1MCtRPItXgJGYSlWmAdkua1-iL_svoI2Icgg&s=uE9uaCa2RV_G7HtjV6sxyfx9GduRM9wHUH-EOF3VvNM&e=
>>>
>>>
>>> On Thu, Oct 26, 2017 at 6:38 PM, Michael <micha...@gmail.com> wrote:
>>> > Hi,
>>> >
>>> > Test 4 failed after make test. I make my research and find the
>>> following
>>> > answer:
>>> >
>>> >
>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_msg_dealii_mV-2DjuFpnybA_DSBP4DArCQAJ&d=DwIBaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=xqP0pwi1MCtRPItXgJGYSlWmAdkua1-iL_svoI2Icgg&s=b_s_RUQD1qLw_eZ_t42IRcNKemfVWZIUnPr0jIQTF5c&e=
>>>
>>> >
>>> > I guess it may be caused by different version of MPI. And I get the
>>> > following return of suggested command:
>>> >
>>> >
>>> ************************************************************************************************
>>>
>>>
>>> > mpirun -n 2 ./mpi.debug
>>> > Hi from 0/1
>>> > Hi from 0/1
>>> > ERROR: process does not see nproc=2!
>>> > ERROR: process does not see nproc=2!
>>> > -------------------------------------------------------
>>> > Primary job terminated normally, but 1 process returned
>>> > a non-zero exit code.. Per user-direction, the job has been aborted.
>>> > -------------------------------------------------------
>>> >
>>> --------------------------------------------------------------------------
>>> > mpirun detected that one or more processes exited with non-zero
>>> status, thus
>>> > causing
>>> > the job to be terminated. The first process to do so was:
>>> >
>>> > Process name: [[18180,1],0]
>>> > Exit code: 255
>>> >
>>> ************************************************************************************************
>>>
>>>
>>> > mpiexec -n 2 ./mpi.debug
>>> > Hi from 0/1
>>> > Hi from 0/1
>>> > ERROR: process does not see nproc=2!
>>> > ERROR: process does not see nproc=2!
>>> > -------------------------------------------------------
>>> > Primary job terminated normally, but 1 process returned
>>> > a non-zero exit code.. Per user-direction, the job has been aborted.
>>> > -------------------------------------------------------
>>> >
>>> --------------------------------------------------------------------------
>>> > mpiexec detected that one or more processes exited with non-zero
>>> status,
>>> > thus causing
>>> > the job to be terminated. The first process to do so was:
>>> >
>>> > Process name: [[18211,1],0]
>>> > Exit code: 255
>>> >
>>> ************************************************************************************************
>>>
>>>
>>> > which mpirun
>>> > /usr/bin/mpirun
>>> >
>>> ************************************************************************************************
>>>
>>>
>>> > which mpiexec
>>> > /usr/bin/mpiexec
>>> >
>>> ************************************************************************************************
>>>
>>>
>>> >
>>> > Please tell me how to solve this(how to choose the correct mpi
>>> compiler)? Do
>>> > I need to reinstall dealii and trilinos? Thanks!
>>> >
>>> > --
>>> > The deal.II project is located at
>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.dealii.org_&d=DwIBaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=xqP0pwi1MCtRPItXgJGYSlWmAdkua1-iL_svoI2Icgg&s=UIJ0hYC1YEmLHJ5Djjsj_XcW_2LGt7Q5raqDotwhhac&e=
>>>
>>> > For mailing list/forum options, see
>>> >
>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_forum_dealii-3Fhl-3Den&d=DwIBaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=xqP0pwi1MCtRPItXgJGYSlWmAdkua1-iL_svoI2Icgg&s=JKE6aBeInND4IfgBW9RSAgN9OCmcy2saC2mphp8BAMM&e=
>>>
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>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_optout&d=DwIBaQ&c=Ngd-ta5yRYsqeUsEDgxhcqsYYY1Xs5ogLxWPA_2Wlc4&r=4k7iKXbjGC8LfYxVJJXiaYVu6FRWmEjX38S7JmlS9Vw&m=xqP0pwi1MCtRPItXgJGYSlWmAdkua1-iL_svoI2Icgg&s=Eq64x4K04k3VFV3CDPo-vz5RrxJJmqZn3nruLvMycQY&e=
>>>
>>> .
>>>
>>>
>>>
>>> --
>>> Timo Heister
>>> http://www.math.clemson.edu/~heister/
>>>
>>
--
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