[Pw_forum] error on LINUX-MPI

[Giovanni Cangiani]

I encoutered the same problem some time ago. 
The definition of MPI_REAL8 in mpif.h from lam distribution is missing.
MPI_DOUBLE_PRECISION is defined instead.
A quick workaround is to define it in the include/machine.h file:
something like

#ifdef __LAM
#define MPI_REAL8 MPI_DOUBLE_PRECISION
#endif

and define __LAM cpp directive in your make.sys:

CPPFLAGS = .... -D__LAM

I do not remember exactly but I have the feeling that with 
lam there were still another problem. But let see first what you get 
with this.

	giovanni.


On Tue, 2003-07-08 at 11:19, Sergei Lisenkov wrote:
> Dear PW users,
> 
> I tried to compile mpi version of PW on PC clusters using ifc and lam-mpi. I got (attach).
> 
> How to solve it?
> 
> Thanks for help,
> Sergey