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[svn-r3935] Purpose:

Browse Source 
Test Addition
Description:
    I added a small test to determine if the MPI library has a working
    version of the MPI_Get_count() function. If it does, then I define
    the macro:

            MPI_GET_COUNT_WORKS

    This should (hopefully) take care of the kludges in H5FDmpio.c...

    NOTE: This isn't implemented in the H5FDmpio.c file since I don't
    know the code in there and don't know which solution will work. Also,
    the test program I put into the configure script needs to be checked
    on a platform which does have a working MPI_Get_count()
    function...I.e., this is just a first stab.
Platforms tested:
    Linux
This commit is contained in:
Bill Wendling 2001-05-17 15:26:50 -05:00
parent 0d2d6fb97d
commit 9ac96a9bd3
2 changed files with 67 additions and 1 deletions
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41
configure vendored
View File

@ -9702,6 +9702,47 @@ rm -f conftest*
if test "X$RUNPARALLEL" = "Xnone"; then
RUNPARALLEL=
fi
echo $ac_n "checking whether a MPI_Get_count works correctly""... $ac_c" 1>&6
echo "configure:9708: checking whether a MPI_Get_count works correctly" >&5
if test "$cross_compiling" = yes; then
{ echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
else
cat > conftest.$ac_ext <<EOF
#line 9713 "configure"
#include "confdefs.h"
#include <mpi.h>
int main(int argc, char **argv)
{
MPI_Status mpi_stat;
int bytes_read = 0, ret;
MPI_Init(&argc, &argv);
ret = MPI_Get_count(&mpi_stat, MPI_BYTE, &bytes_read);
MPI_Finalize();
/* this returns TRUE if bytes_read is 0...the shell thinks that the
* program fails, but we want it didn't of course so switch the
* "true"/"false" parts of the TRY_RUN macro */
return bytes_read == 0;
}
EOF
if { (eval echo configure:9734: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
then
echo "$ac_t""no" 1>&6
else
echo "configure: failed program was:" >&5
cat conftest.$ac_ext >&5
rm -fr conftest*
echo "$ac_t""yes" 1>&6
CPPFLAGS="$CPPFLAGS -DMPI_GET_COUNT_WORKS"
fi
rm -fr conftest*
fi
fi

27
configure.in
View File

@ -1109,7 +1109,7 @@ int main(void)
sprintf(s,"%${hdf5_cv_printf_ll}d",x);
exit(strcmp(s,"1099511627776"));
}
], break)
], break,,)
done)
AC_MSG_RESULT(%${hdf5_cv_printf_ll}d and %${hdf5_cv_printf_ll}u)
@ -1409,6 +1409,31 @@ if test -n "$PARALLEL"; then
if test "X$RUNPARALLEL" = "Xnone"; then
RUNPARALLEL=
fi
dnl Check whether MPI_Get_count actually works correctly on this
dnl platform.
AC_MSG_CHECKING(whether a MPI_Get_count works correctly)
AC_TRY_RUN([
#include <mpi.h>
int main(int argc, char **argv)
{
MPI_Status mpi_stat;
int bytes_read = 0, ret;
MPI_Init(&argc, &argv);
ret = MPI_Get_count(&mpi_stat, MPI_BYTE, &bytes_read);
MPI_Finalize();
/* this returns TRUE if bytes_read is 0...the shell thinks that the
* program fails, but we want it didn't of course so switch the
* "true"/"false" parts of the TRY_RUN macro */
return bytes_read == 0;
}
],
AC_MSG_RESULT(no),
AC_MSG_RESULT(yes)
CPPFLAGS="$CPPFLAGS -DMPI_GET_COUNT_WORKS")
fi
dnl ----------------------------------------------------------------------