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

mark dimitsas.markos at gmail.com
Thu May 1 09:49:32 CDT 2014

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)

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mpich.org/pipermail/discuss/attachments/20140501/b85acd61/attachment.html>

More information about the discuss mailing list