Thanks Paul -- reported in #2544.
On Aug 24, 2010, at 6:07 PM, Paul H. Hargrove wrote: > I went to try to reproduce the problem Larry Baker reported w/ the PGI 10.3 > compilers and undefined references in libopen-pal.so when linking > opal_wrapper. Instead I encountered a different error that does not (as best > I can tell) correspond to any of the issues Larry has reported recently. > Once I disable the error-inducing VT code, I am unable to reproduce Larry's > problem with the 10.3, 10.5 or 10.8 PGI compilers. > > My system and the errors: > > $ cat /etc/redhat-release > Scientific Linux SL release 5.4 (Boron) > > $ uname -a > Linux cvrsvc01 2.6.18-164.9.1.el5c-perf #1 SMP Wed Jun 9 14:40:25 PDT 2010 > x86_64 x86_64 x86_64 GNU/Linux > > $ /lib64/libc.so.6 GNU C Library stable release version > 2.5, by Roland McGrath et al. > Copyright (C) 2006 Free Software Foundation, Inc. > This is free software; see the source for copying conditions. > There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A > PARTICULAR PURPOSE. > Compiled by GNU CC version 4.1.2 20080704 (Red Hat 4.1.2-44). > Compiled on a Linux 2.6.9 system on 2009-09-02. > Available extensions: > The C stubs add-on version 2.1.2. > crypt add-on version 2.1 by Michael Glad and others > GNU Libidn by Simon Josefsson > GNU libio by Per Bothner > NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk > Native POSIX Threads Library by Ulrich Drepper et al > BIND-8.2.3-T5B > RT using linux kernel aio > Thread-local storage support included. > For bug reporting instructions, please see: > <http://www.gnu.org/software/libc/bugs.html>. > > $ pgcc -V pgcc 10.5-0 64-bit target on x86-64 Linux -tp nehalem-64 > Copyright 1989-2000, The Portland Group, Inc. All Rights Reserved. > Copyright 2000-2010, STMicroelectronics, Inc. All Rights Reserved. > > $ [path_to]/openmpi-1.5rc5/configure CC=pgcc CXX=pgCC F77=pgf77 FC=pgf90 > [...] > > $ make > [...] > make[9]: Entering directory > `/global/scratch/sd/hargrove/ompi-1.5rc5-pgi-10.5/ompi/contrib/vt/vt/extlib/otf/tools/otfprofile' > CXX otfprofile-otfprofile.o > "/global/common/carver/usg/pgi/10.5/linux86-64/10.5/include/omp.h", line 41: > error: > expected an identifier > extern int omp_get_thread_num(void); > ^ > "/global/common/carver/usg/pgi/10.5/linux86-64/10.5/include/omp.h", line 43: > error: > expected an identifier > extern int omp_get_num_threads(void); > ^ > "../../../../../../../../../openmpi-1.5rc5/ompi/contrib/vt/vt/extlib/otf/tools/otfprofile/otfprofile.cpp", > line 572: error: > this kind of pragma may not be used here > # pragma omp barrier > ^ > "../../../../../../../../../openmpi-1.5rc5/ompi/contrib/vt/vt/extlib/otf/tools/otfprofile/otfprofile.cpp", > line 607: error: > this kind of pragma may not be used here > # pragma omp barrier > ^ > > "../../../../../../../../../openmpi-1.5rc5/ompi/contrib/vt/vt/extlib/otf/tools/otfprofile/otfprofile.cpp", > line 648: error: > this kind of pragma may not be used here > # pragma omp barrier > ^ > > 5 errors detected in the compilation of > "../../../../../../../../../openmpi-1.5rc5/ompi/contrib/vt/vt/extlib/otf/tools/otfprofile/otfprofile.cpp". > [...] > > It appears that the source file in question ALREADY contains a work-around > for this issue: >> /* Disable OpenMP if the PGI compiler is used to work around the following >> errors: >> >> compiler version compiler error >> < 9.0-3 PGCC-S-0000-Internal compiler error. calc_dw_tag:no tag >> (see Technical Problem Report 4337 at >> http://www.pgroup.com/support/release_tprs_90.htm) >> >> 10.1 - 10.6 this kind of pragma may not be used here >> #pargma omp barrier >> */ >> #if defined(_OPENMP) && defined(__PGI) >> # undef _OPENMP >> #endif >> >> >> #ifdef _OPENMP >> # include <omp.h> >> #else >> # define omp_get_thread_num() 0 >> # define omp_get_num_threads() 1 >> #endif > > However, it appears that the C++ STL headers (included via Summary.h) are > indirectly including omp.h, leading to this failure: the "expected an > identifier" due to the two #defines in the work-around, and the "this kind of > pragma..." errors due to the original issue resurfacing. > > I have reproduced this problem with PGI versions 10.3, 10.5 and 10.8. > > If I configure with --disable-vt then I (obviously) don't encounter this > error. In that case I am able to complete the build of 1.5rc5 with no > errors. This means an INABILITY to reproduce Larry's undefined references > problem. > > -Paul > > -- > Paul H. Hargrove phhargr...@lbl.gov > Future Technologies Group > HPC Research Department Tel: +1-510-495-2352 > Lawrence Berkeley National Laboratory Fax: +1-510-486-6900 > > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
