Usually OFED installs only 64 bit version of libibverbs. If you want to
install 32bit and 64bit version you need pass "--build32" flag to OFED
install. So after reinstalling OFED with 32bit support, you may rebuild
the OMPI for 32 bit support.
Regards,
Pasha
Mohd Radzi Nurul Azri wrote:
Hi,
Thanks for the prompt reply. This might be basic but typically where
is the 32 bit ofed libs? I think the default install prefix is /usr
and my guess is the 64 bit libs is in /usr/lib64 . Where do I look for
the 32 bit ofed libs? I remembered during the ofed build that passing
32 bit build argument failed - will it still install an OFED 32 bit libs?
On Wed, Aug 13, 2008 at 1:40 AM, Jeff Squyres <jsquy...@cisco.com
<mailto:jsquy...@cisco.com>> wrote:
You probably need to add
--with-openib-libdir=/path/to/your/32/bit/ofed/libs. I'm guessing
that the system installed the 64 bit libs in the default location
and the 32 bit libs in a different location. If that's the case,
then --with-openib-libdir will tell OMPI specifically where to
look for those libs and use those instead.
On Aug 12, 2008, at 1:32 PM, Mohd Radzi Nurul Azri wrote:
Hi,
I've been trying to install openmpi 1.2.5 on my cluster system
running RHEL 4 (x64) with OFED 1.3. I need openmpi 1.2.5 (32
bit) and OFED seems to only install 64 bit version. I tried to
build OFED with 32 bit support but it failed so I figure it's
best to just compile 32 bit openmpi. I followed the FAQ and
few user experience on the web.
I ran this command:
./configure --prefix=/usr/mpi/gcc/32bit --with-openib=/usr
CFLAGS=-m32 CXXFLAGS=-m32 FFLAGS=-m32 FCFLAGS=-m32
and after few scrolling lines, it stops here:
--- MCA component btl:openib (m4 configuration macro)
checking for MCA component btl:openib compile mode... dso
looking for header without includes
checking infiniband/verbs.h usability... yes
checking infiniband/verbs.h presence... yes
checking for infiniband/verbs.h... yes
looking for library without search path
checking for ibv_open_device in -libverbs... no
looking for library in lib
checking for ibv_open_device in -libverbs... no
looking for library in lib64
checking for ibv_open_device in -libverbs... no
checking for ibv_create_srq... no
checking for ibv_get_device_list... no
checking for ibv_resize_cq... no
configure: WARNING: OpenFabrics support requested (via
--with-openib) but not fo und.
configure: WARNING: If you are using libibverbs v1.0 (i.e.,
OFED v1.0 or v1.1), you *MUST* have both the libsysfs
headers and libraries installed. Later versio ns of
libibverbs do not require libsysfs.
configure: error: Aborting.
What went wrong? From the error it says early OFED version
which is not the one I'm using (running OFED 1.3 now).
Any advice is greatly appreciated.
--
Thank you.
azri
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Jeff Squyres
Cisco Systems
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Thank you.
Nurul Azri Mohd Radzi
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