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On 13/07/10 13:12, akshar bhosale wrote:
> thanks..any other related info ?
Not that comes to mind, I'm afraid!
- --
Christopher Samuel - Senior Systems Administrator
VLSCI - Victorian Life Sciences Computational Initiative
Email: sam...@unimelb
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On 13/07/10 14:29, Rahul Nabar wrote:
> Out of curiosity, is there the possibility of running
> a "swapless" compute-node?
Yes of course, it just means that the kernel no longer has
the option of paging out infrequently accessed dirty pages
to free s
This is called a gratuitous ARP. Used to update the ARP caches of other
nodes.
On 07/12/2010 10:48 PM, Rahul Nabar wrote:
On Mon, Jul 12, 2010 at 11:25 PM, Patrick Geoffray wrote:
Rahul,
On 7/13/2010 12:04 AM, Rahul Nabar wrote:
I am puzzled by a bunch of ARP requests on my networ
On Mon, Jul 12, 2010 at 11:25 PM, Patrick Geoffray wrote:
> Rahul,
>
> On 7/13/2010 12:04 AM, Rahul Nabar wrote:
>>
>> I am puzzled by a bunch of ARP requests on my network that I captured
>> using tcpdump. Shouldn't ARP discovery requests always be sent to a
>> broadcast address?
>
> No, the kern
On Mon, Jul 12, 2010 at 2:02 PM, Gus Correa wrote:
> Consider disk for:
>
> A) swap space (say, if the user programs are large,
> or you can't buy a lot of RAM, etc);
Out of curiosity, is there the possibility of running a "swapless"
compute-node? I mean most HPC nodes already have fairly generou
Rahul,
On 7/13/2010 12:04 AM, Rahul Nabar wrote:
I am puzzled by a bunch of ARP requests on my network that I captured
using tcpdump. Shouldn't ARP discovery requests always be sent to a
broadcast address?
No, the kernel regularly refreshes the entries in the ARP cache with
unicast requests.
I am puzzled by a bunch of ARP requests on my network that I captured
using tcpdump. Shouldn't ARP discovery requests always be sent to a
broadcast address?
I have requests of the type below which seemingly are addressed to a
specific mAC address.
00:26:b9:58:d7:2f > 00:26:b9:58:eb:b8, ARP, lengt
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On 13/07/10 01:21, akshar bhosale wrote:
> Thanks for your information, but do i need to change
> anything for increasing timeout if i dont want to kill
> running jobs..
If you have jobs that will hit their walltime whilst the
server is down then the
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On 13/07/10 05:02, Gus Correa wrote:
> I wonder if swapping over NFS would be efficient for HPC.
There are out of tree patches for swap over NFS (and I've
seen assertions that SuSE SLES 11 includes it) which has
been doing the rounds for a few years
Machine is an older Intel Woodcrest cluster with a two tiered IB
infrastructure with Topspin/Cisco 7000 switches. The core switch is a
SFS-7008P with a single management module which runs the SM manager.
The cluster runs RHEL4 and was upgraded last week to kernel
2.6.9-89.0.26.ELsmp. The ope
Hi Doug
Consider disk for:
A) swap space (say, if the user programs are large,
or you can't buy a lot of RAM, etc);
I wonder if swapping over NFS would be efficient for HPC.
Disk may be a simple and cost effective solution.
B) input/output data files that your application programs may require
(
Ah Ha. I see the point of a non-diskful, or nfs root, install for the
compute nodes. One image to update/change, instead of a whole bunch.
Thanks,
Douglas.
On Fri, Jul 09, 2010 at 07:11:18PM -0400, Mark Hahn wrote:
> well, the thing about nfs root is that there's almost no installation,
> per
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