[mpich-discuss] libmpich.a "No such file or directory"

[Si Hammond]

Pretty odd.

Have you tried specifying the exact path?

mpicc -o /home/abcd/main.o main.c
mpicc -o /home/abcd/hello /home/acbd/main.o


S.


On 15 Aug 2010, at 16:38, sasha lambert wrote:

> Hmm still nothing; no errors but no main.o.
> My mpich configure, make, and make install steps went smoothly. The "which mpicc" test was successful, indicating its location at usr/bin.
> 
> Sasha
> 
> On Sun, Aug 15, 2010 at 11:25 AM, Si Hammond <simon.hammond at gmail.com> wrote:
> Can you try...
> 
> mpicc -o main.o -c main.c
> mpicc -o hello main.o
> 
> You should see the main.o in the directory, if no errors on the screen then it sounds like its working fine.
> 
> 
> S.
> 
> On 15 Aug 2010, at 16:21, sasha lambert wrote:
> 
>> I tried compiling using mpicc, and nothing seems to happen.
>> The prompt just reappears and no executable file has been made.
>> 
>> Sasha
>> 
>> On Sun, Aug 15, 2010 at 11:12 AM, Si Hammond <simon.hammond at gmail.com> wrote:
>> Have you tried compiling with mpicc?
>> 
>> mpicc -o hello main.c 
>> 
>> This sets up the linking etc for you.
>> 
>> 
>> 
>> S.
>> 
>> 
>> On 15 Aug 2010, at 16:02, sasha lambert wrote:
>> 
>>> I'm fairly new to unix and mpich, so please bear with me.
>>> 
>>> I've tried to compile a simple "hello" program below:
>>> 
>>> /*The Parallel Hello World Program*/
>>> #include <stdio.h>
>>> #include <mpi.h>
>>> 
>>> main(int argc, char **argv)
>>> {
>>> 	int node;
>>> 	MPI_Init(&argc,&argv);
>>> 	MPI_Comm_rank(MPI_COMM_WORLD, &node);
>>> 	
>>> 	printf("Hello World from Node %d\n",node);
>>> 	
>>> 	MPI_Finalize();
>>> }
>>> 
>>> Here is the shell response:
>>> 
>>> $ gcc main.c -o hello
>>> Undefined symbols:
>>>   "_MPI_Comm_rank", referenced from:
>>>       _main in ccWLoMyo.o
>>>   "_MPI_Finalize", referenced from:
>>>       _main in ccWLoMyo.o
>>>   "_MPI_Init", referenced from:
>>>       _main in ccWLoMyo.o
>>> ld: symbol(s) not found
>>> collect2: ld returned 1 exit status
>>> 
>>> I tried searching for "MPI_init" in libmpich.a, thinking it might have to do with the added underscore in " _MPI_Init".
>>> Shell response:
>>> 
>>> $ nm libmpich.a | grep mpi_init
>>> nm: can't open file: libmpich.a (No such file or directory)
>>> 
>>> I've added usr/local/lib to the PATH, but still nothing. Any suggestions?
>>> 
>>> Thanks,
>>> Sasha
>>> _______________________________________________
>>> mpich-discuss mailing list
>>> mpich-discuss at mcs.anl.gov
>>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>> 
>> 
>> ---------------------------------------------------------------------------------------
>> Si Hammond
>> 
>> Research Fellow & Knowledge Transfer Associate
>> Performance Computing & Visualisation Group
>> Department of Computer Science
>> University of Warwick, CV4 7AL, UK
>> http://go.warwick.ac.uk/hpsg
>> ----------------------------------------------------------------------------------------
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> mpich-discuss mailing list
>> mpich-discuss at mcs.anl.gov
>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
>> 
>> 
>> _______________________________________________
>> mpich-discuss mailing list
>> mpich-discuss at mcs.anl.gov
>> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
> 
> 
> ---------------------------------------------------------------------------------------
> Si Hammond
> 
> Research Fellow & Knowledge Transfer Associate
> Performance Computing & Visualisation Group
> Department of Computer Science
> University of Warwick, CV4 7AL, UK
> http://go.warwick.ac.uk/hpsg
> ----------------------------------------------------------------------------------------
> 
> 
> 
> 
> 
> _______________________________________________
> mpich-discuss mailing list
> mpich-discuss at mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss
> 
> 
> _______________________________________________
> mpich-discuss mailing list
> mpich-discuss at mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss


---------------------------------------------------------------------------------------
Si Hammond

Research Fellow & Knowledge Transfer Associate
Performance Computing & Visualisation Group
Department of Computer Science
University of Warwick, CV4 7AL, UK
http://go.warwick.ac.uk/hpsg
----------------------------------------------------------------------------------------




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