[mvapich-discuss] mvapich2/1.6 on new AMD Abu Dhabi nodes

[Dhabaleswar Panda]

Hi,

Thanks for your note and report. MVAPICH2 1.6 is very old and is not 
supported any longer. Good to know that you do not see any issue with 
MVAPICH2 1.9. Please use this latest MVAPICH2 1.9 version.

Thanks,

DK

On Mon, 24 Jun 2013, Wesley Emeneker wrote:

> Dear MVAPICH developers,  We have an interesting situation involving old
> MVAPICH2 versions and very new hardware.
> The basic problem is that the hwloc library (version 1.2) crashes when run
> on our new AMD Abu Dhabi nodes.
> This affects our installation of mvapich2-1.6 (which has been the default
> MPI for the last couple of years) which was compiled against hwloc-1.2.
> Updating hwloc to a newer version (1.5 or better seems to work), but when I
> try to compile mvapich2-1.6 against the newer version I get this error:
> ../bin/mpicc   -o cpi cpi.o  -lm 
> /root/mvapich2-1.6/lib/libmpich.a(ch3_hwloc_bind.o): In function
> `smpi_setaffinity':
> ch3_hwloc_bind.c:(.text+0x2b99): undefined reference to `hwloc_cpuset_alloc'
> ch3_hwloc_bind.c:(.text+0x2f2f): undefined reference to `hwloc_cpuset_set'
> ch3_hwloc_bind.c:(.text+0x2fac): undefined reference to `hwloc_cpuset_set'
> ch3_hwloc_bind.c:(.text+0x2fdb): undefined reference to `hwloc_cpuset_cpu'
> ch3_hwloc_bind.c:(.text+0x302f): undefined reference to `hwloc_cpuset_cpu'
> 
> 
> mvapich2-1.9 does not have this problem (crashing in the hwloc library
> call).
> 
> We would like it if we didn't have to deprecate mvapich2-1.6 for all of our
> applications and users.
> My question is: can we patch mvapich2-1.6 so that we don't have to go
> through the forced-upgrade for everyone?
> 
> The hwloc changelog suggests that we can simply replace hwloc_cpusest_ with
> hwloc_bitmap_ functions.
> Is that correct?
> 
> I hope I have clearly described our problem and desired solution.
> Let me know if I need to clarify anything.
> 
> Thanks,
> Wesley
> 
> 
> --
> Wesley Emeneker, Research Scientist
> The Partnership for an Advanced Computing Environment
> Georgia Institute of Technology
> 
> 404.385.2303
> Wesley.Emeneker at oit.gatech.edu
> http://pace.gatech.edu
> 
>