SGI 10-Gigabit Ethernet Network Adapter Manual do Utilizador descarregar pdf (Página 87)

CCGrid '11

Solarflare Communications: OpenOnload Stack

Typical HPC Networking Stack

Typical Commodity Networking Stack

• HPC Networking Stack provides many

performance benefits, but has limitations

for certain types of scenarios, especially

where applications tend to fork(), exec()

and need asynchronous advancement (per

application)

Solarflare approach to networking stack

• Solarflare approach:

 Network hardware provides user-safe

interface to route packets directly to apps

based on flow information in headers

 Protocol processing can happen in both

kernel and user space

 Protocol state shared between app and

kernel using shared memory

Courtesy Solarflare communications (www.openonload.org/openonload-google-talk.pdf)

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SGI 10-Gigabit Ethernet Network Adapter Manual do Utilizador Página 87