there is currently no standard quad-precision type in MPI, so don't a…

…llow MPI support to be compiled with --enable-quad-precision [empty commit message]
NBDaner · Jun 19, 2011 · a6142f7 · a6142f7
1 parent 3406799
commit a6142f7
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diff --git a/configure.ac b/configure.ac
@@ -174,6 +174,9 @@ dnl -----------------------------------------------------------------------
 AC_ARG_ENABLE(mpi, [AC_HELP_STRING([--enable-mpi],[compile FFTW MPI library])], enable_mpi=$enableval, enable_mpi=no)
 
 if test "$enable_mpi" = "yes"; then
+   if test $PRECISION = q; then
+      AC_MSG_ERROR([quad precision is not supported in MPI])
+   fi
    ACX_MPI([],[AC_MSG_ERROR([could not find mpi library for --enable-mpi])])
    AC_CHECK_PROG(MPIRUN, mpirun, mpirun)
    AC_SUBST(MPIRUN)

diff --git a/mpi/ifftw-mpi.h b/mpi/ifftw-mpi.h
@@ -43,6 +43,8 @@
 #  define FFTW_MPI_TYPE MPI_FLOAT
 #elif defined(FFTW_LDOUBLE)
 #  define FFTW_MPI_TYPE MPI_LONG_DOUBLE
+#elif defined(FFTW_QUAD)
+#  error MPI quad-precision type is unknown
 #else
 #  define FFTW_MPI_TYPE MPI_DOUBLE
 #endif

diff --git a/mpi/mpi-bench.c b/mpi/mpi-bench.c
@@ -15,6 +15,8 @@
 #  define BENCH_MPI_TYPE MPI_FLOAT
 #elif defined(BENCHFFT_LDOUBLE)
 #  define BENCH_MPI_TYPE MPI_LONG_DOUBLE
+#elif defined(BENCHFFT_QUAD)
+#  error MPI quad-precision type is unknown
 #else
 #  define BENCH_MPI_TYPE MPI_DOUBLE
 #endif