[Beowulf] What is rdma, ofed, verbs, psm etc?

[Prentice Bisbal]

On 09/19/2017 12:24 PM, Peter Kjellström wrote:

> On Tue, 19 Sep 2017 09:27:55 -0600
> Faraz Hussain <info at feacluster.com> wrote:
>
>> I have never understood what these acronyms are. I've been involved
>> with HPC on the applications side for many years and hear these
>> terms pop up now and then. I've read through the wikipedia pages but
>> still do not understand what they mean. Can someone give a very high
>> level overview of what they are and how they relate to HPC?
>   
> rdma: remote direct memory access, a way to move data from one node to
> another. Supported by for example Infiniband.
>
> ofed: a software distribution of network drivers, libraries, utilities
> typically used by users/applications to run on Infiniband (and other
> networks supported by ofed). In short: infiniband drivers
>
OFED = OpenFabrics Enterprise Distribution.

https://www.openfabrics.org/index.php/openfabrics-software.html