hdf5/config/linux-gnulibc1
Mike McGreevy dc9288a447 [svn-r21101] HDFFV-7639
Purpose:

    Remove H5_MPI_SPECIAL_COLLECTIVE_IO_WORKS and
    H5_MPI_COMPLEX_DERIVED_DATATYPE_WORKS #defines from source.

Description:

    Two advanced parallel functionalities, special collective IO and
    complex derived datatypes, are not supported by older
    implementations of mpi, and thus our code limits the use of these
    features with #ifdefs and has checks in configure to set them (or
    not). Unfortunately, configure can't actually run a parallel check
    to see if these features are working (nor not) so it resorts to
    looking in the config files where they are explicity enabled or
    disabled based on versions of mpi, sytems being built on, or for
    no documented reason at all (i.e. just set to on or off as some
    'default'). Overriding these settings is easy if need be, provided
    it is known that it needs to be done to get improved performance,
    and oftentimes it is not.

    Most new MPI implementations successfully handle the functionality
    requested when these #defines are set, and many of the "turn these
    features off" cases in the config files are for old (> 5 years)
    versions of MPI and retired systems (such as NCSA's tungsten).

    Therefore, the decision has been made to remove the support for
    these old versions of MPI and systems that cannot handle these
    behaviors. The #ifdefs and supporting setup in the config/ files
    and configure script has been removed, and the code executed when
    these options were not set removed from the source.

    In passing, this commit also cleans up some whitespace issues in
    both t_mpi.c and H5Dmpio.c. Furthermore, in t_mpi.c, the special
    collective IO test was not getting regularly run due to it being
    written to work only with four processes (we regularly test with
    six, previously with three), and thus it failed when actually run
    due to an out of bounds data buffer assignment. It has been
    modified to run at any number of processes greater than four, and
    the memory problem has been fixed so the test passes.

Tested:

    jam, h5committest, ember
2011-07-14 15:33:21 -05:00

211 lines
5.5 KiB
Bash

# -*- shell-script -*-
#
# Copyright by The HDF Group.
# Copyright by the Board of Trustees of the University of Illinois.
# All rights reserved.
#
# This file is part of HDF5. The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the files COPYING and Copyright.html. COPYING can be found at the root
# of the source code distribution tree; Copyright.html can be found at the
# root level of an installed copy of the electronic HDF5 document set and
# is linked from the top-level documents page. It can also be found at
# http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have
# access to either file, you may request a copy from help@hdfgroup.org.
# This file is part of the HDF5 build script. It is processed shortly
# after configure starts and defines, among other things, flags for
# the various compile modes.
#
# See BlankForm in this directory for details.
# The default compiler is `gcc'.
if test -z "$CC"; then
if test "X-$enable_parallel" = "X-yes"; then
# default to use mpicc which is the defacto MPI compiler name
CC=mpicc
CC_BASENAME=mpicc
else
CC=gcc
CC_BASENAME=gcc
fi
fi
# Figure out GNU C compiler flags
. $srcdir/config/gnu-flags
# Figure out PGI C compiler flags
. $srcdir/config/pgi-flags
# Figure out Intel C compiler flags
. $srcdir/config/intel-flags
echo "CC_BASENAME is $CC_BASENAME."
# Use default Fortran 90 compiler according to what C compiler is used.
if test "X-" = "X-$FC"; then
case $CC_BASENAME in
gcc*)
FC=gfortran
FC_BASENAME=gfortran
;;
pgcc*)
FC=pgf90
FC_BASENAME=pgf90
;;
icc*)
FC=ifort
FC_BASENAME=ifort
;;
mpicc*)
FC=mpif90
FC_BASENAME=mpif90
;;
esac
else
case $FC in
# The PGI and Intel compilers are automatically detected below
ifc*|ifort*|pgf90*)
;;
*f95*)
# Figure out which compiler we are using: pgf90 or Absoft f95
RM='rm -f'
tmpfile=/tmp/cmpver.$$
$FC -V >$tmpfile
if test -s "$tmpfile"; then
if( grep -s 'Absoft' $tmpfile > /dev/null) then
FC_BASENAME=f95
fi
if( grep -s 'pgf90' $tmpfile > /dev/null) then
FC_BASENAME=pgf90
fi
fi
$RM $tmpfile
fc_version_info=`$FC -V | grep Absoft`
;;
*)
;;
esac
fi
# Figure out PGI F90 compiler flags
. $srcdir/config/pgi-fflags
# Figure out Intel F90 compiler flags
. $srcdir/config/intel-fflags
case $FC_BASENAME in
#
# Absoft compiler
#
f95)
# Set required flag for compiling C stubs
H5_CFLAGS="$H5_CFLAGS"
F9XSUFFIXFLAG=""
# We force compiler to use upper case for external names
# (just in case since this should be a default EIP)
H5_FCFLAGS="$H5_FCFLAGS"
FSEARCH_DIRS=""
DEBUG_FCFLAGS="-g"
PROD_FCFLAGS="-O"
PROFILE_FCFLAGS="-g -pg"
f9x_flags_set=yes
;;
esac
# The default C++ compiler
# The default compiler is `g++'.
if test -z "$CXX"; then
CXX=g++
CXX_BASENAME=g++
fi
# compiler version strings
case $CC in
# whatever matches *pgcc* will also match *gcc*, so this one must come first
*pgcc*)
cc_version_info=`$CC $CFLAGS $H5_CFLAGS -V 2>&1 | grep 'pgcc'`
;;
*gcc*)
cc_version_info=`$CC $CFLAGS $H5_CFLAGS --version 2>&1 | grep -v 'PathScale' |\
grep 'GCC' | sed 's/\(.*(GCC) [-a-z0-9\. ]*\).*/\1/'`
;;
*icc*)
cc_version_info=`$CC $CCFLAGS $H5_CCFLAGS -V 2>&1 | grep 'Version' |\
sed 's/\(Intel.* Compiler\).*\( Version [a-z0-9\.]*\).*\( Build [0-9]*\)/\1\2\3/'`
;;
*)
echo "No match to get cc_version_info for $CC"
;;
esac
# get fortran version info
case $FC in
*gfortran*)
fc_version_info=`$FC $FCFLAGS $H5_FCFLAGS --version 2>&1 |\
grep 'GCC' | sed 's/\(.*(GCC) [-a-z0-9\. ]*\).*/\1/'`
;;
*ifc*|*ifort*)
fc_version_info=`$FC $FCFLAGS $H5_FCFLAGS -V 2>&1 | grep 'Version' |\
sed 's/\(Intel.* Compiler\).*\( Version [a-z0-9\.]*\).*\( Build [0-9]*\)/\1\2\3/'`
;;
*f95*)
# Figure out which compiler we are using: pgf90 or Absoft f95
RM='rm -f'
tmpfile=/tmp/cmpver.$$
$FC -V >$tmpfile
if test -s "$tmpfile"; then
if( grep -s 'Absoft' $tmpfile > /dev/null) then
FC_BASENAME=f95
fi
fi
$RM $tmpfile
fc_version_info=`$FC -V | grep Absoft`
;;
*g95*)
fc_version_info=`$FC $FCFLAGS $H5_FCFLAGS --version 2>&1 |\
grep 'GCC'`
;;
*pgf90*)
fc_version_info=`$FC $FCFLAGS $H5_FCFLAGS -V 2>&1 | grep 'pgf90'`
;;
*)
echo "No match to get fc_version_info for $FC"
;;
esac
# get c++ version info
case $CXX in
*g++*)
cxx_version_info=`$CXX $CXXFLAGS $H5_CXXFLAGS --version 2>&1 |\
grep 'GCC' | sed 's/\(.*(GCC) [-a-z0-9\. ]*\).*/\1/'`
;;
*icpc*)
cxx_version_info=`$CXX $CXXFLAGS $H5_CXXFLAGS -V 2>&1 | grep 'Version' |\
sed 's/\(Intel.* Compiler\).*\( Version [a-z0-9\.]*\).*\( Build [0-9]*\)/\1\2\3/'`
;;
*pgCC*)
cxx_version_info=`$CXX $CXXFLAGS $H5_CXXFLAGS -V 2>&1 | grep 'pgCC'`
;;
*)
echo "No match to get cxx_version_info for $CXX"
;;
esac