Diego,
IIRC, you now have to build your gfortran 10 apps with
-fallow-argument-mismatch
Cheers,
Gilles
----- Original Message -----
Dear OPENMPI users,
i'd like to notify you a strange issue that arised right after
installing a new up-to-date version of Linux (Kubuntu 20.10, with gcc-10
version )
I am developing a software to be run in distributed memory machines with
OpenMPI version 4.0.3.
The error seems to be as much simple as weird. Each time i compile the
program, the following problem is reported:
692 | call MPI_BCAST (config,1000*100,MPI_DOUBLE,0,MPI_COMM_WORLD,
ierr)
| 2
693 | call MPI_BCAST(N,1,MPI_INT,0,MPI_COMM_WORLD,ierr2)
| 1
Error: Type mismatch between actual argument at (1) and actual argument
at (2) (INTEGER(4)/REAL(8)).
If i compile the same program on an older machine (with an older version
of gcc, the 9th one), i don't get back any error like this.
Moreover, the command doesn't sound like a syntax error nor a logical
error, since it represents just two consecutive trivial operations of
broadcasting, each independent to the other. The first operation
broadcasts an array named "config" of 100000 double elements, while the
second operation broadcasts a single integer variable named "N"
It seems that the compiler finds some strange links between the line 692
and 693, and believes that i should put the two arrays "config" and "N"
in a consistent way, while they are clearly absolutely independent so
they are not requested to be of the same type.
Searching on the web, i read that this issue could be ascribed to the
new version of gcc (the 10th) which contains some well known bugs.
I have even tried to compile with the flag -fallow-argument-mismatch,
and it fixed some similar report problems indeed, but this specific
problem remains
what do you think about?
thank you very much
Best Regards
Diego
