I have a systems running Solaris 11.1 on x86-64 hardware and 11.2 in an
x86-64 VM.
To the extent I have tested the results are the same on both, despite
gcc-4.5.2 vs 4.8.2
I have normally tested only the Sun/Oracle Studio compilers on these
systems.
However, today I gave the vendor-provided gcc, g++ and gfortran in /usr/bin
a try.
So I configured the OpenMPI 1.10.0rc3 tarball with NO arguments to
configure.
When doing so I see tons of warnings like:
../../../../openmpi-1.10.0rc3/opal/include/opal/sys/atomic.h:393:9:
warning: `opal_atomic_add_32' used but never defined
../../../../openmpi-1.10.0rc3/opal/include/opal/sys/atomic.h:401:9:
warning: `opal_atomic_sub_32' used but never defined
and an eventual link failure to match:
CCLD libopen-pal.la
Text relocation remains referenced
against symbol offset in file
opal_atomic_add_32 0x1e4
runtime/.libs/opal_progress.o
opal_atomic_sub_32 0x234
runtime/.libs/opal_progress.o
ld: fatal: relocations remain against allocatable but non-writable sections
collect2: ld returned 1 exit status
Here is the possibly-relevant portion of the configure output:
checking if gcc -std=gnu99 supports GCC inline assembly... yes
checking if gcc -std=gnu99 supports DEC inline assembly... no
checking if gcc -std=gnu99 supports XLC inline assembly... no
checking for assembly format... default-.text-.globl-:--.L-@-1-0-1-1-0
checking for assembly architecture... IA32
checking for builtin atomics... BUILTIN_NO
checking for perl... perl
checking for pre-built assembly file... yes (atomic-ia32-linux-nongas.s)
checking for atomic assembly filename... atomic-ia32-linux-nongas.s
The same problem is present in Open MPI 1.8.8, but 1.8.7 builds just fine.
Note that on Solaris the default ABI is ILP32 (e.g. default to -m32 rather
than -m64).
There are no problems with LP64 builds ("-m64" in *FLAGS and the wrapper
flags).
There are also no problems with either ILP32 or LP64 and the Studio
compilers.
Only gcc with (default) 32-bit target experiences this failure.
-Paul
--
Paul H. Hargrove phhargr...@lbl.gov
Computer Languages & Systems Software (CLaSS) Group
Computer Science Department Tel: +1-510-495-2352
Lawrence Berkeley National Laboratory Fax: +1-510-486-6900
