[mvapich-discuss] Configre with hwloc, but have errors

[Krishna Chaitanya Kandalla]

Hi Haoanyi,
MVAPICH2 works with InfiniBand, iWARP and RDMAoE. Within our library, we 
try to detect the hardware architecture and we bind the processes to 
cores in a specific manner, even without hwloc.
But, if you are specifically looking for using hwloc with TCP/IP, I 
think you are better off using MPICH2's latest release.

Thanks,
Krishna

haoanyi wrote:
> Hi, Krishna,
>
> Thank you for your reply. I still have question about this.
> If I enable the --with-rdma=gen2 option, does that mean that the 
> system must have InfiniBand? All I know about the system I am working 
> on has its network component Avocent Switch ACS48, Raptor Switch, 
> Cisco Switch: Catalyst 2960G. I do not know about these clearly. So I 
> do not know which option in the configuration is the correct choice.
>
> Suppose that there is no IB avaible on the system, can I still install 
> certain package for IB, (e.g. OFED 1.2, which may not be feasible for 
> a non-root, considering that it requires kernel patch)?
>
> Can I understand that MVAPICH2 can not do cpu affinity without 
> configuring with --hwloc?
> I am sorry to bother people on this maillist. My sys. admin is not 
> usually reachable, so I have to do these in my HOME directory as a 
> non-root, which is not easy.
> Thank you very much.
>
>
> 2010-03- 26 23:13:16 "Krishna Chaitanya Kandalla" 
> <kandalla at cse.ohio-state.edu>
> >Hi Haoanyi, >I think you are seeing this error because you are trying 
> to build the >MVAPICH2 library with the "ch3:sock" interface. HWLOC 
> works with >MVAPICH2 when the library is configured with either the 
> gen2 or the >uDAPL interfaces. You can take a look at the user-guide 
> sections 4.4 >through 4.7 for more information : 
> >http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.4.1.html#x1-100004.4 
> >Please let us know if you face any further issues. > >Thanks, 
> >Krishna > >
>