05-06-2013, 03:52 AM
(05-06-2013, 03:10 AM)epixoip Wrote: status doesn't work, you just have to live with it.
no, those speeds are not normal for a 7970. a single 7970 should be able to pull about 130 kh/s. but, those speeds are probably to be expected with the amount of work you've given it. rockyou + base64 is hardly any work, especially for that many devices.
it would also be helpful if you told us about your cluster architecture, broker node specs, network topology, etc.
The broker is a dedicated server with a 3Ghz E5450 Xeon with 16GB of RAM and a quad-port Intel Gb ethernet card. Each port is connected to a separate Gb switch. Two of the compute nodes, each with four GPUs, are connected to each switch.
I'm hoping it's not a network bandwidth issue... Infiniband isn't an easy option with the motherboard in the compute nodes.