I would never compile a fortran program relying on a specific compiler option! I would never use r8/i8! I would highly encourage you to explicitly set the precision of each variable if you need specific variable precision. There are plenty of tutorials around for this (selected_real/int_kind).
Secondly, the warning of mis-alignment is due to the data type not being a multiple of 8. You can pad it with additional bytes to reach a multiple of 8 (in this case add a fake integer, or character(len=4)). I do not know if sequence is needed for the mpi data type (I guess it is needed when dealing with arrays of types, but again, I am not fully sure about this...). A couple of options: 1) I think sequence should work if you pad it to align with 8 bytes. 2) add code that is directive specified against the compiler to tell the exact alignment of the data type 3) Your compilation of -r8 -i8 does probably not work due to the integer being long, and hence your data type of MPI_INTEGER (you did not tell us whether you corrected this) 2014-10-03 11:07 GMT+00:00 Diego Avesani <diego.aves...@gmail.com>: > Dears, > First of all. Really really thanks for you help, I am learning a lot. > Second: > I try to study the MPI_TYPE_CREATE_STRUCT and all the things look correct. > > I use Intel Fortran compiler and when I compile with -r8 means that I am > compiling in double precision. > > About Nick suggestion: > Coding > > TYPE tParticle > SEQUENCE > INTEGER :: ip > REAL :: RP(2) > REAL :: QQ(4) > END TYPE tParticle > > > if I compile with > mpif90 -r8 *.f90 > > I get the following error: > warning #6379: The structure contains one or more misaligned fields. > [TPARTICLE] TYPE tParticle > > > I can only compile as: > mpif90 -r8 -i8 *.f90 > > But I get the same error: > > An error occurred in MPI_Cart_create > [diedroLap:12267] *** reported by process [139817172008961,139814070386689] > [diedroLap:12267] *** on communicator MPI_COMM_WORLD > [diedroLap:12267] *** MPI_ERR_OTHER: known error not in list > [diedroLap:12267] *** MPI_ERRORS_ARE_FATAL (processes in this communicator > will now abort, > [diedroLap:12267] *** and potentially your MPI job) > > > > What I can do? > Thanks a lot > > > > On 3 October 2014 08:15, Nick Papior Andersen <nickpap...@gmail.com> > wrote: > >> sequence > > > > > Diego > > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2014/10/25434.php > -- Kind regards Nick
