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config: Remove support for big endian PPC, XL compiler older than 13.1 #4103

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Aug 22, 2017
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config: Remove support for big endian PPC, XL compiler older than 13.1 #4103

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25d0f43
config: Remove support for big endian PPC, XL compiler older than 13.1
jjhursey Aug 16, 2017
9cfe7b3
NEW: Note Removing support for big endian PPC, XL compiler older than…
jjhursey Aug 16, 2017
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4 changes: 3 additions & 1 deletion NEWS
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved.
Use is subject to license terms.
Copyright (c) 2006-2017 Los Alamos National Security, LLC. All rights
reserved.
Copyright (c) 2010-2012 IBM Corporation. All rights reserved.
Copyright (c) 2010-2017 IBM Corporation. All rights reserved.
Copyright (c) 2012 Oak Ridge National Labs. All rights reserved.
Copyright (c) 2012-2017 Sandia National Laboratories. All rights reserved.
Copyright (c) 2012 University of Houston. All rights reserved.
Expand Down Expand Up @@ -72,6 +72,8 @@ Removed legacy support:
Open MPI BTL components for supported networks. Please see README for the currently
available options.
- Remove IB XRC support from the OpenIB BTL due to lack of support.
- Remove support for big endian PowerPC.
- Remove support for XL compilers older than v13.1

Known issues (to be addressed in v3.0.1):

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22 changes: 14 additions & 8 deletions config/opal_check_vendor.m4
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Expand Up @@ -12,6 +12,7 @@ dnl Copyright (c) 2004-2005 The Regents of the University of California.
dnl All rights reserved.
dnl Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
dnl Copyright (c) 2014 Intel, Inc. All rights reserved
dnl Copyright (c) 2017 IBM Corporation. All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
Expand Down Expand Up @@ -114,6 +115,18 @@ AC_DEFUN([_OPAL_CHECK_COMPILER_VENDOR], [
[OPAL_IF_IFELSE([defined(__FUJITSU)],
[opal_check_compiler_vendor_result="fujitsu"])])

# IBM XL C/C++
AS_IF([test "$opal_check_compiler_vendor_result" = "unknown"],
[OPAL_IF_IFELSE([defined(__xlC__) || defined(__IBMC__) || defined(__IBMCPP__)],
[opal_check_compiler_vendor_result="ibm"
xlc_major_version=`$CC -qversion 2>&1 | tail -n 1 | cut -d ' ' -f 2 | cut -d '.' -f 1`
xlc_minor_version=`$CC -qversion 2>&1 | tail -n 1 | cut -d ' ' -f 2 | cut -d '.' -f 2`
AS_IF([ (test "$xlc_major_version" -lt "13" ) || (test "$xlc_major_version" -eq "13" && test "$xlc_minor_version" -lt "1" )],
[AC_MSG_ERROR(["XL Compiler versions less than 13.1 not supported. Detected $xlc_major_version.$xlc_minor_version"])])
],
[OPAL_IF_IFELSE([defined(_AIX) && !defined(__GNUC__)],
[opal_check_compiler_vendor_result="ibm"])])])

# GNU
AS_IF([test "$opal_check_compiler_vendor_result" = "unknown"],
[OPAL_IFDEF_IFELSE([__GNUC__],
Expand All @@ -131,7 +144,7 @@ AC_DEFUN([_OPAL_CHECK_COMPILER_VENDOR], [
AC_MSG_WARN([Detected gccfss being used to compile Open MPI.])
AC_MSG_WARN([Because of several issues Open MPI does not support])
AC_MSG_WARN([the gccfss compiler. Please use a different compiler.])
AC_MSG_WARN([If you didn't think you used gccfss you may want to])
AC_MSG_WARN([If you did not think you used gccfss you may want to])
AC_MSG_WARN([check to see if the compiler you think you used is])
AC_MSG_WARN([actually a link to gccfss.])
AC_MSG_ERROR([Cannot continue])
Expand Down Expand Up @@ -181,13 +194,6 @@ AC_DEFUN([_OPAL_CHECK_COMPILER_VENDOR], [
[OPAL_IF_IFELSE([defined(__HP_cc) || defined(__HP_aCC)],
[opal_check_compiler_vendor_result="hp"])])

# IBM XL C/C++
AS_IF([test "$opal_check_compiler_vendor_result" = "unknown"],
[OPAL_IF_IFELSE([defined(__xlC__) || defined(__IBMC__) || defined(__IBMCPP__)],
[opal_check_compiler_vendor_result="ibm"],
[OPAL_IF_IFELSE([defined(_AIX) && !defined(__GNUC__)],
[opal_check_compiler_vendor_result="ibm"])])])

# KAI C++ (rest in peace)
AS_IF([test "$opal_check_compiler_vendor_result" = "unknown"],
[OPAL_IFDEF_IFELSE([__KCC],
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14 changes: 13 additions & 1 deletion configure.ac
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Expand Up @@ -22,7 +22,7 @@
# Copyright (c) 2013-2017 Intel, Inc. All rights reserved.
# Copyright (c) 2014-2017 Research Organization for Information Science
# and Technology (RIST). All rights reserved.
# Copyright (c) 2016 IBM Corporation. All rights reserved.
# Copyright (c) 2016-2017 IBM Corporation. All rights reserved.
# $COPYRIGHT$
#
# Additional copyrights may follow
Expand Down Expand Up @@ -84,6 +84,18 @@ AS_IF([test "$host" != "$target"],
[AC_MSG_WARN([Cross-compile detected])
AC_MSG_WARN([Cross-compiling is only partially supported])
AC_MSG_WARN([Proceed at your own risk!])])
# Check for architectures that we explicitly no longer support
case "${host}" in
powerpc-*|powerpc64-*|ppc-*)
AC_MSG_ERROR([Big endian PPC is no longer supported.])
;;
esac
case "${target}" in
powerpc-*|powerpc64-*|ppc-*)
AC_MSG_ERROR([Big endian PPC is no longer supported.])
;;
esac

# AC_USE_SYSTEM_EXTENSIONS alters CFLAGS (e.g., adds -g -O2)
OPAL_VAR_SCOPE_PUSH([CFLAGS_save])
CFLAGS_save=$CFLAGS
Expand Down