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тАО04-30-2010 03:30 AM
тАО04-30-2010 03:30 AM
Node size
Hi,
Does the output of the command
numactl --hardware
available: 1 nodes (0-0)
node 0 cpus: 0 1
node 0 size: 8155 MB
node 0 free: 3231 MB
No distance information available.
where,
node 0 size: 8155MB
mean that the local memory associated with node 0 is 8155MB?
Can anyone guide me please?
Does the output of the command
numactl --hardware
available: 1 nodes (0-0)
node 0 cpus: 0 1
node 0 size: 8155 MB
node 0 free: 3231 MB
No distance information available.
where,
node 0 size: 8155MB
mean that the local memory associated with node 0 is 8155MB?
Can anyone guide me please?
2 REPLIES 2
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тАО05-01-2010 03:07 AM
тАО05-01-2010 03:07 AM
Re: Node size
Yes, it looks like it means exactly that.
Furthermore, as your system currently seems to have all its CPU & memory resources in one node, it might not be a NUMA system at all, or at least the Linux kernel does not recognize it as such.
Your "numactl --hardware" output looks exactly the way I would expect it in a system that has no NUMA hardware features, but is currently running a Linux kernel that can support NUMA if necessary.
MK
Furthermore, as your system currently seems to have all its CPU & memory resources in one node, it might not be a NUMA system at all, or at least the Linux kernel does not recognize it as such.
Your "numactl --hardware" output looks exactly the way I would expect it in a system that has no NUMA hardware features, but is currently running a Linux kernel that can support NUMA if necessary.
MK
MK
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тАО05-01-2010 07:04 AM
тАО05-01-2010 07:04 AM
Re: Node size
Hi,
>> mean that the local memory associated with node 0 is 8155MB?
Yes. Thats what the output means.
But in your case there is only one node, so all the resources would be local
to that node. There is nothing NUMA about it.
Is it a NUMA system ?
If it is then is there any reason why it is configured with only one node?
Refer the following link for more details -
http://www.halobates.de/numaapi3.pdf
As a side note, your user name "heartbreakkid" reminds me of WWE superstar
Shawn Michael!
Regards,
Murali
>> mean that the local memory associated with node 0 is 8155MB?
Yes. Thats what the output means.
But in your case there is only one node, so all the resources would be local
to that node. There is nothing NUMA about it.
Is it a NUMA system ?
If it is then is there any reason why it is configured with only one node?
Refer the following link for more details -
http://www.halobates.de/numaapi3.pdf
As a side note, your user name "heartbreakkid" reminds me of WWE superstar
Shawn Michael!
Regards,
Murali
Let There Be Rock - AC/DC
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