Re: [OMPI devel] [OMPI users] Configuration error with external hwloc
+1 It might be easier simply to use the embedded libhwloc. I.e., don't specify --with-hwloc=external, and let OMPI's default use of the embedded libhwloc take over. > On Mar 23, 2015, at 10:58 PM, Gilles Gouaillardet > wrote: > > Peter, > > i was able to reproduce the issue when the external hwloc libraries are not > in the default lib path (e.g. /usr/lib64) > > a simple workaround is to > LD_LIBRARY_PATH=/path_to_your_hwloc_lib configure ... > > /* libevent configure does compile a test program with > -L/path_to_your_hwloc_lib -lhwloc, > and then tries to run the binary, but that fails since the library is not > found. > on top of my head, possible fixes are : > a) invoke libevent configure with LD_LIBRARY_PATH=/path_to_your_hwloc_lib > b) invoke libevent configure with LDFLAGS=-Wl,-rpath,/path_to_your_hwloc_lib > Cheers, > */ > > > Gilles > > On 2015/03/24 10:23, Peter Gottesman wrote: >> Ah, yes I am sorry. I can successfully configure if I do not define an >> external hwloc, however the 'make all' fails. I must have not re-configured >> it after trying that. >> >> The correct config.log is there now. From what I could gather, the problem >> is in this line(105): >> >> >>> ./conftest: error while loading shared libraries: libhwloc.so.0: cannot >>> open shared object file: No such file or directory >>> >> When I try to run that file I get a segfault, although from what I can tell >> there is not a problem during the hwloc installation(but it would seem that >> I am wrong). >> I have attached the correct config.log from >> opal/mca/event/libevent2022/libevent, >> the config.log from hwloc, and the output from the 'make install' of hwloc >> Thanks, >> Peter >> >> >> >> >> ___ >> 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/2015/03/17147.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/2015/03/17148.php -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
Re: [OMPI devel] [OMPI users] Configuration error with external hwloc
I talked to Peter off-list. We got a successful build going for him. Seems like we've identified a few issues here, though: 1. ./configure with gcc 4.7.2 on Debian (I didn't catch the precise version of Debian) results in a Lhwloc1 duplicate symbol in OMPI's embedded hwloc. This feels very much like a compiler error -- we got a successful builds when we forced the use of -O2 instead of the default -O3. Peter and I will investigate further. 2. Using an external hwloc is tricky: one issue is that LD_LIBRARY_PATH needs to be set. We should be able to fix this in OMPI itself such that you won't need to set LD_LIBRARY_PATH yourself. Second, however, is if you have both an external libevent and an external hwloc in the same tree, but you only want to use *one* of those two as external to OMPI. Ralph will file a github issue about this shortly. > On Mar 23, 2015, at 9:23 PM, Peter Gottesman wrote: > > Ah, yes I am sorry. I can successfully configure if I do not define an > external hwloc, however the 'make all' fails. I must have not re-configured > it after trying that. > > The correct config.log is there now. From what I could gather, the problem is > in this line(105): > ./conftest: error while loading shared libraries: libhwloc.so.0: cannot open > shared object file: No such file or directory > When I try to run that file I get a segfault, although from what I can tell > there is not a problem during the hwloc installation(but it would seem that I > am wrong). > I have attached the correct config.log from > opal/mca/event/libevent2022/libevent, the config.log from hwloc, and the > output from the 'make install' of hwloc > Thanks, > Peter > -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
Re: [OMPI devel] [OMPI users] Configuration error with external hwloc
Le 24/03/2015 20:47, Jeff Squyres (jsquyres) a écrit : > I talked to Peter off-list. > > We got a successful build going for him. > > Seems like we've identified a few issues here, though: > > 1. ./configure with gcc 4.7.2 on Debian (I didn't catch the precise version > of Debian) results in a Lhwloc1 duplicate symbol in OMPI's embedded hwloc. > This feels very much like a compiler error -- we got a successful builds when > we forced the use of -O2 instead of the default -O3. Peter and I will > investigate further. 4.7.2 is gcc in Debian wheezy (current stable). Looks like the upcoming jessie will have 4.9.2 Brice
