Paul and all, i just pushed https://github.com/open-mpi/ompi/commit/b42e3441294e9fe787fe8e9ad7403d5b8e465163
when a buggy compiler is detected, configure now forces OPAL_HAVE_CMPXCHG16B=0 this is enough to make opal_lifo test and make check happy again. Cheers, Gilles On 2015/02/04 17:26, Gilles Gouaillardet wrote: > Paul, > > my previous email was misleading. > > what i really meant is the opal_fifo test works fine with icc 2013u5 > (the release before 2013sp1) and > icc 2013sp1u2 and later > > so even if the reproducer fails with icc older that 2013sp1u2, that > might not impact ompi > since for other reasons, the bug is not hit > > for example, with icc 2013u5, OPAL_HAVE_CMPXCHG16B=0 so ompi stays away > from the compiler bug. > > Cheers, > > Gilles > > On 2015/02/04 17:15, Paul Hargrove wrote: >> Giles, >> >> Who says only 2 version are effected? >> >> I have access to 9 revisions of icc. >> Using your reduced case I find 7 that fail and only 2 (the latest two) that >> pass. >> Discounting icc-12 (which can't compile the test) that makes 6 versions >> effected by the bug (not 2). >> >> -Paul >> >> $ for x in 12.1.5.339 13.0.0.079 13.0.1.117 13.1.2.183 13.1.3.192 >> 14.0.0.080 14.0.1.106 14.0.2.144 15.0.1.133; do module swap intel intel/$x >> ; echo @ Testing Intel compiler version $x; icc conftest.c && ./a.out && >> echo PASS ; done >> @ Testing Intel compiler version 12.1.5.339 >> conftest.c(10): error: identifier "__int128_t" is undefined >> __int128_t value; >> ^ >> >> compilation aborted for conftest.c (code 2) >> @ Testing Intel compiler version 13.0.0.079 >> a.out: conftest.c:36: main: Assertion `a.value == b.value' failed. >> Aborted >> @ Testing Intel compiler version 13.0.1.117 >> a.out: conftest.c:36: main: Assertion `a.value == b.value' failed. >> Aborted >> @ Testing Intel compiler version 13.1.2.183 >> a.out: conftest.c:36: main: Assertion `a.value == b.value' failed. >> Aborted >> @ Testing Intel compiler version 13.1.3.192 >> a.out: conftest.c:36: main: Assertion `a.value == b.value' failed. >> Aborted >> @ Testing Intel compiler version 14.0.0.080 >> a.out: conftest.c:36: main: Assertion `a.value == b.value' failed. >> Aborted >> @ Testing Intel compiler version 14.0.1.106 >> a.out: conftest.c:36: main: Assertion `a.value == b.value' failed. >> Aborted >> @ Testing Intel compiler version 14.0.2.144 >> PASS >> @ Testing Intel compiler version 15.0.1.133 >> PASS >> >> On Tue, Feb 3, 2015 at 11:45 PM, Gilles Gouaillardet < >> gilles.gouaillar...@iferc.org> wrote: >> >>> Nathan, >>> >>> imho, this is a compiler bug and only two versions are affected : >>> - intel icc 14.0.0.080 (aka 2013sp1) >>> - intel icc 14.0.1.106 (aka 2013sp1u1) >>> /* note the bug only occurs with -O1 and higher optimization levels */ >>> >>> here is attached a simple reproducer >>> >>> a simple workaround is to configure with ac_cv_type___int128=0 >>> >>> Cheers, >>> >>> Gilles >>> >>> On 2015/02/04 4:17, Nathan Hjelm wrote: >>> >>> Thats the second report involving icc 14. I will dig into this later >>> this week. >>> >>> -Nathan >>> >>> On Mon, Feb 02, 2015 at 11:03:41PM -0800, Paul Hargrove wrote: >>> >>> I have seen opal_fifo hang on 2 distinct systems >>> + Linux/ppc32 with xlc-11.1 >>> + Linux/x86-64 with icc-14.0.1.106 >>> I have no explanation to offer for either hang. >>> No "weird" configure options were passed to either. >>> -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 >>> >>> _______________________________________________ >>> devel mailing listde...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >>> Link to this post: >>> http://www.open-mpi.org/community/lists/devel/2015/02/16911.php >>> >>> >>> >>> _______________________________________________ >>> devel mailing listde...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >>> Link to this post: >>> http://www.open-mpi.org/community/lists/devel/2015/02/16920.php >>> >>> >>> >>> _______________________________________________ >>> devel mailing list >>> de...@open-mpi.org >>> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >>> Link to this post: >>> http://www.open-mpi.org/community/lists/devel/2015/02/16921.php >>> >> >> >> >> _______________________________________________ >> devel mailing list >> de...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel >> Link to this post: >> http://www.open-mpi.org/community/lists/devel/2015/02/16922.php > > > > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2015/02/16923.php
