Why not just use C99 stdint? That gives you fixes-size types. -Nathan
> On Mar 14, 2019, at 9:38 AM, George Reeke <re...@mail.rockefeller.edu> wrote: > > On Wed, 2019-03-13 at 22:10 +0000, Sergio None wrote: >> Hello. >> >> >> I'm using OpenMPI 3.1.3 on x64 CPU and two ARMv8( Raspberry pi 3). >> >> >> But i'm having some issues with data types that are architecture >> dependent, like 'long'. >> > ---------trimmed--------- > > >> >> So my question is: there any way to pass data that don't depend of >> architecture? > > What I do is make a header file I call 'sysdef.h' with #ifdefs for > all the systems I use that define types like (for signed 32-bit integer) > #ifdef Intel64 > typedef int si32 > #endif > #ifdef ARMv8 > typedef long si32 > #endif > ...etc... > [And I have a whole bunch of other useful definitions like MAX_SI32, > LONG_SIZE and stuff like that--above is not an actual code excerpt] > > and then in the makefile put '-DIntel64' or '-DARMv8' or whatever > I called it in the sysdef. Then the code should use the typedef names. > In the MPI_Send, MPI_Recv calls I usually call the type MPI_BYTE and > give the actual lengths in bytes which I compute once at the time > of the malloc and store in a global common block. > George Reeke > > > > > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users
