[mpich-discuss] Getting an undeclared error on compile, with mpicc

[mark]

Well, it was the declaration of the mpi.h . It wasn't there. Thanks for 
the instant support Ken, i appreciate it.

Στις 01/05/2014 05:56 μμ, ο/η Kenneth Raffenetti έγραψε:
> How was MPICH installed? Are you including the right mpi.h header in 
> your program? Have you tried compiling and running the cpi.c example 
> that comes with MPICH?
>
> If you send us the smallest possible program that can reproduce this 
> error, it would help us get to the bottom of the issue.
>
> Ken
>
> On 05/01/2014 09:49 AM, mark wrote:
>> Hello.
>> I am getting an error that i wasn't getting before.
>>
>> ------------------------------------------------------------------------
>> test.c: In function 'main':
>> test.c:63: error: 'MPI_COMM_WORLD' undeclared (first use in this 
>> function)
>> test.c:63: error: (Each undeclared identifier is reported only once
>> test.c:63: error: for each function it appears in.)
>> test.c:111: error: 'MPI_INT' undeclared (first use in this function)
>> ------------------------------------------------------------------------
>> line 63 : MPI_Comm_size(MPI_COMM_WORLD, &numnodes);
>> line 111:MPI_Scatter( array, PARTS, MPI_INT, my_array, PARTS, MPI_INT,
>> master, MPI_COMM_WORLD);
>>
>>
>> I am under a 2.6.23-gentoo-r5 cluster with gcc version 4.2.2 (Gentoo
>> 4.2.2 p1.0)
>>
>>
>>
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