[wrfems] Old DX servers
Daniel.Leins at noaa.gov
Wed Dec 8 07:27:09 MST 2010
I haven't worked with the DX's yet, but there's a chance we might be.
I'm curious as to what you find out.
That being said, I was under the impression that the DX's were 32bit
machines, not 64. I could be totally wrong about that though. I also
thought they had 4 processors each. How many DX's are in your cluster?
Have you tried running the benchmark case with ONLY the 4 DX's? I'd be
curious to see what your results are without mixing different types of
The DX's should all have gigabit NIC's, what kind of network issues are
you dealing with?
On 12/8/2010 7:16 AM, Douglas Tilly wrote:
> To all of the WFOs out there...
> Has anyone had success using the old DX servers in their clusters? I
> installed a fresh OS and have everything up and running. I'm using
> the core2 binaries due to another machine in the cluster. When using
> two machines with 18 processors, I get compute time for each timestep
> of around 0.9 seconds. When I use the old dx server with 4 extra
> processors, it increases to around 2.3 seconds. When I run sysinfo
> (for whatever reason, I don't have cpuinfo anymore), it says to use
> the p7 binaries. So, when I use those, it's still slower than before
> I replaced the machine that only had two processors. I'm not sure how
> this makes any sense.
> When looking at /proc/cpuinfo, I get:
> vendor_id : GenuineIntel
> cpu family : 15
> model : 4
> which is the same as the old LX boxes that I'm trying to replace. I
> was hoping that the 64-bit servers would help speed it up. Maybe I'm
> just not using the correct binaries? I'm also still investigating
> some network problems along with a potential hardware issue. Just
> wondering if anyone else has tried using these dx servers and what
> your experiences are.
> wrfems mailing list
> wrfems at comet.ucar.edu
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