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Subject: Re: [OMPI users] Romio and OpenMPI builds
From: Eric Chamberland (Eric.Chamberland_at_[hidden])
Date: 2012-12-07 23:44:05


Hi Brock,

Le 12/06/2012 05:10 PM, Brock Palen a écrit :
> Eric,
>
> You are correct, our builds do not show lustre support:
>
> MCA io: information "io_romio_user_configure_params" (value:<none>, data source: default value)
surprise! ;-)
>
> So to enable this, when I build OpenMPI I should pass:
>
> --with-io-romio-flags='--with-file-system=testfs+ufs+nfs+lustre'
exactly.
>
> We have Lustre, local filesystems (ufs), and NFSv3 and NFSv4 clients. So that list should be good for our site.
>
> Would this be a good recommendation for us to include in all our MPI builds?
I think yes, it is in the right direction, but I am not an "expert"...
some expert advice should be welcome.

Eric

>
> Brock Palen
> www.umich.edu/~brockp
> CAEN Advanced Computing
> brockp_at_[hidden]
> (734)936-1985
>
>
>
> On Dec 3, 2012, at 7:12 PM, Eric Chamberland wrote:
>
>> Le 12/03/2012 05:37 PM, Brock Palen a écrit :
>>> I was trying to use hints with ROMIO and lustre prompted by another post on this list.
>>>
>>> I have a simple MPI-IO code and I cannot using the notes I find set the lustre striping using the config file and setting ROMIO_HINTS.
>>>
>>> Question:
>>>
>>> How can I check which ADIO drivers ROMIO in OPenMPI was built with when I built it?
>>> Can I make ROMIO go into 'verbose' mode and have it print what it is setting all its values to?
>> Try "ompi_info -a" and check for lustre in the output:
>>
>> ompi_info -a | grep -i romio
>> ...
>> MCA io: information "io_romio_user_configure_params" (value:<--with-file-system=testfs+ufs+nfs+lustre>, data source: default value)
>> User-specified command line parameters passed to ROMIO's configure script
>> MCA io: information "io_romio_complete_configure_params" (value:<--with-file-system=testfs+ufs+nfs+lustre CFLAGS='-DNDEBUG -O3 -xHOST -Wall -finline-functions -fno-strict-aliasing -restrict -pthread' CPPFLAGS=' -I/clumeq/src/Open-MPI/1.6.3/intel/openmpi-1.6.3/opal/mca/hwloc/hwloc132/hwloc/include -I/clumeq/src/Open-MPI/1.6.3/intel/Build/opal/mca/hwloc/hwloc132/hwloc/include -I/usr/include/infiniband -I/usr/include/infiniband' FFLAGS='' LDFLAGS=' ' --enable-shared --enable-static --with-file-system=testfs+ufs+nfs+lustre --prefix=/software/MPI/openmpi/1.6.3_intel --with-mpi=open_mpi --disable-aio>, data source: default value)
>> Complete set of command line parameters passed to ROMIO's configure script
>>
>> Eric
>>
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