diff options
Diffstat (limited to 'configure.ac')
-rw-r--r-- | configure.ac | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/configure.ac b/configure.ac index 81dcee7..1cb8662 100644 --- a/configure.ac +++ b/configure.ac @@ -3098,11 +3098,11 @@ if test -n "$PARALLEL"; then fi ## ---------------------------------------------------------------------- - ## Check for the MPI-3 functions necessary for the Parallel Compression + ## Check for the MPI functions necessary for the Parallel Compression ## feature. If these are not present, issue a warning that Parallel ## Compression will be disabled. ## - AC_MSG_CHECKING([for MPI_Mprobe and MPI_Imrecv functions]) + AC_MSG_CHECKING([for MPI_Ibarrier/MPI_Issend/MPI_Iprobe/MPI_Irecv functions]) AC_LINK_IFELSE( [AC_LANG_PROGRAM( @@ -3110,16 +3110,19 @@ if test -n "$PARALLEL"; then #include <mpi.h> ]], [[ - MPI_Message message; + int flag; MPI_Init(0, (void *) 0); - MPI_Mprobe(0, 0, 0, &message, (void *) 0); - MPI_Imrecv((void *) 0, 0, 0, (void *) 0, (void *) 0); + MPI_Ibarrier(0, (void *) 0); + MPI_Issend((void *) 0, 0, 0, 0, 0, 0, (void *) 0); + MPI_Iprobe(0, 0, 0, &flag, (void *) 0); + MPI_Irecv((void *) 0, 0, 0, 0, 0, 0, (void *) 0); ]] )], [AC_MSG_RESULT([yes]) - PARALLEL_FILTERED_WRITES=yes], + PARALLEL_FILTERED_WRITES=yes + AC_DEFINE([HAVE_PARALLEL_FILTERED_WRITES], [1], [Define if we have support for writing to filtered datasets in parallel])], [AC_MSG_RESULT([no]) - AC_MSG_WARN([A simple MPI program using the MPI_Mprobe and MPI_Imrecv functions could not be compiled and linked. + AC_MSG_WARN([A simple MPI program using the MPI_Ibarrier, MPI_Issend, MPI_Iprobe and MPI_Irecv functions could not be compiled and linked. Parallel writes of filtered data will be disabled.]) PARALLEL_FILTERED_WRITES=no] ) |