[UR-WG] GPU Accounting

[Keith Chadwick]

John,

We will also need to consider the case of systems deployed with the
Intel phi co-processor which currently has 62 processors on the card.
Applications can run from 0 to 62 processors.

-Keith.

At 10:36 AM +0000 4/10/13, <john.gordon at stfc.ac.uk> wrote:
>Guys, there is a workshop today on use of GPGPU in EGI. I am looking 
>at accounting. Has anyone considered how we include this in UR2?
>
>Options I thought of are:
>
>1. Extend the computeusageblock - have a second field for CPU used 
>on attached processor. This would also need some way to identify the 
>type. Currently we have a count of processors and the sum of cpu 
>use. We can't add CPU+GPU so we would need to duplicate several 
>fields
>
>2. Repeat the computeusageblock - there is no identifier that would 
>distinguish between 2 instances of the block. If there were then we 
>could have two instances, one for CPU and one for GPU. The fields 
>like, cpu count and total CPU would be different in each and could 
>be treated separately or together because they are recorded together 
>in the same UR. Another problem is that we do not identify the type 
>of processor so we could not parse to distinguish between multiple 
>blocks.
>
>3. A new block AttachedProcUsageBlock
>
>Any other thoughts?
>
>John
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