Re: [OMPI devel] MPI_REAL16

2009-06-22 Thread Iain Bason
(Thanks, Nick, for explaining that kind values are compiler-dependent. I was too lazy to do that.) Jeff Squyres wrote: Given that I'll inevitably get the language wrong, can someone suggest proper verbiage for this statement in the OMPI README: - MPI_REAL16 and MPI_COMPLEX32 are only supporte

Re: [OMPI devel] MPI_REAL16

2009-06-22 Thread Jeff Squyres
Given that I'll inevitably get the language wrong, can someone suggest proper verbiage for this statement in the OMPI README: - MPI_REAL16 and MPI_COMPLEX32 are only supported on platforms where a portable C datatype can be found that matches the Fortran type REAL*16, both in size and bit r

Re: [OMPI devel] MPI_REAL16

2009-06-22 Thread N.M. Maclaren
On Jun 22 2009, Iain Bason wrote: Jeff Squyres wrote: Thanks for looking into this, David. So if I understand that correctly, it means you have to assign all literals in your fortran program with a "_16" suffix. I don't know if that's standard Fortran or not. Yes, it is. Sorry - no, it

Re: [OMPI devel] MPI_REAL16

2009-06-22 Thread Iain Bason
Jeff Squyres wrote: Thanks for looking into this, David. So if I understand that correctly, it means you have to assign all literals in your fortran program with a "_16" suffix. I don't know if that's standard Fortran or not. Yes, it is. Iain

Re: [OMPI devel] MPI_REAL16

2009-06-21 Thread Jeff Squyres
Thanks for looking into this, David. So if I understand that correctly, it means you have to assign all literals in your fortran program with a "_16" suffix. I don't know if that's standard Fortran or not. But I modified our configure test and now the types seem to match. Can you give t

Re: [OMPI devel] MPI_REAL16

2009-06-20 Thread David Robertson
Hi Jeff, Bellow is the reply I got from Intel and it seemed to work: David, I received your issue. There isn't an equivalent type to Real*16 in icc without the -Qoption,cpp,--extended_float_types option because there is no runtime library support for quad precision. Your test case has a bug

Re: [OMPI devel] MPI_REAL16

2009-06-19 Thread David Robertson
Hi Jeff, Jeff Squyres wrote: Greetings David. I think we should have a more explicit note about MPI_REAL16 support in the README. This issue has come up before; see https://svn.open-mpi.org/trac/ompi/ticket/1603. If you read through that ticket, you'll see that I was unable to find a C e

Re: [OMPI devel] MPI_REAL16

2009-06-19 Thread Jeff Squyres
Greetings David. I think we should have a more explicit note about MPI_REAL16 support in the README. This issue has come up before; see https://svn.open-mpi.org/trac/ompi/ticket/1603 . If you read through that ticket, you'll see that I was unable to find a C equivalent type for REAL*16 w