[so] [Tema2][Linux] extern struct

[Alex Tomescu]

Salut,

In mpi.h exista

extern DECLSPEC struct mpi_comm *mpi_comm_world
#define MPI_COMM_WORLD (mpi_comm_world)

Din cate am vazut prin diferite tutoriale, daca definesc mpi_comm_world
intr-una din surse, ar trebui sa mearga si in celelalte care includ mpi.h,
dar cand folosesc MPI_COMM_WORLD intr-un program de test, da urmatoarea
eroare:
test.c:(.text+0x31): undefined reference to `mpi_comm_world'

Ce ar trebui sa fac sa pot folosi MPI_COMM_WORLD definit in header?

Multumesc

-- 
Alexandru-Dan Tomescu
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