[Beowulf] cloudy HPC?
samuel at unimelb.edu.au
Thu Feb 6 15:36:01 PST 2014
-----BEGIN PGP SIGNED MESSAGE-----
On 31/01/14 07:57, Mark Hahn wrote:
> For instance, I've heard some complaints about doing MPI on virtualized
> interconnect as being slow. but VM infrastructure
> like KVM can give device ownership to the guest, so IB access *could* be
> bare-metal. (if security is a concern, perhaps
> it could be implemented at the SM level. OTOH, the usual sort
> of shared PaaS HPC doesn't care much about interconnect security...)
Glenn Lockwood has a nice in-depth post reporting results (which he
presented at SC'13, though I missed his talk) about "High-Performance
Virtualization: SR-IOV and InfiniBand" which sounds like it might have
the sort of hard numbers you're after.
He compares virtualised IB (KVM and SR-IOV) to bare metal and also to
The blog was written post-SC13 so there's extra bonus bits too.
Best of luck!
Christopher Samuel Senior Systems Administrator
VLSCI - Victorian Life Sciences Computation Initiative
Email: samuel at unimelb.edu.au Phone: +61 (0)3 903 55545
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
-----END PGP SIGNATURE-----
More information about the Beowulf