What concerns me, though, is that Open MPI shouldn't have tried to compile support for real(16) in the first place -- our configure script should have detected that the compiler didn't support real(16) (which, it at least partially did, because the constants seem to have a value of -1) and then the generated F90 bindings should not have included support for it. This is why I'd like to see the configure output (etc.) and see what happened. On Jan 5, 2006, at 12:59 PM, rod mach wrote:Hi. To my knowledge you must be using gfortran 4.1 not 4.0 to get access to large kind support like real(16) You can verify by trying to compile the following code with gfortran. This compiles under gfortran 4.1, but I don't believe it will work under 4.0 since this support was added in 4.1. program test real(16) :: x, y y = 4.0_16 x = sqrt(y) print *, x end --Rod ------ Rod Mach Absoft HPC Technical Director www.absoft.comError: Kind -1 not supported for type REAL at (1) In file mpi_address_f90.f90:331 make[2]: Leaving directory `/work/source/openmpi-1.0.1/ompi/mpi' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/work/source/openmpi-1.0.1/ompi' make: *** [all-recursive] Error 1 I used the following variables: FC=gfortran CC=gcc CXX=g++ F77=gfortran Any hint on how to solve this problem? Thanks. Jyh-Shyong Ho, Ph.D. Research Scientist National Center for High Performance Computing Hsinchu, Taiwan, ROC_______________________________________________ users mailing list users@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users-- {+} Jeff Squyres {+} The Open MPI Project {+} http://www.open-mpi.org/ _______________________________________________ users mailing list users@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users