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correlator:cuppanew [2013/08/27 16:39]
cormac
correlator:cuppanew [2015/02/09 14:09] (current)
cormac
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 change your password ASAP if you haven'​t already done so. change your password ASAP if you haven'​t already done so.
  
-To log on, go to any node (01 through ​20), eg. ''>​ ssh YourUserName@cuppa01.cira.curtin.edu.au''​\\ +To log on, go to any node (01 through ​24), eg. ''>​ ssh YourUserName@cuppa01.cira.curtin.edu.au''​\\ 
-Once you're within the cluster you don't need the suffixes, you can just ''​ssh ​cuppa02''​ etc.+Once you're within the cluster you don't need the suffixes, you can just ''​ssh ​cuppa10''​ etc
 + 
 +Currently not all nodes are available. The following nodes are down at the time of writing: 
 +cuppa02, cuppa04, cuppa05, cuppa06, cuppa12, cuppa13, cuppa20.
  
 If you haven'​t been added to the cuppa-users mailing list, please subscribe If you haven'​t been added to the cuppa-users mailing list, please subscribe
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 CUPPA has a significant amount of disk space distributed around the nodes, but it is shared, and the VLBI correlator has priority. If you need disk space for a short period, please speak to Cormac to make arrangements. Similarly if you need to do a large processing job, this should be coordinated with Cormac to avoid impacting correlator operations. CUPPA has a significant amount of disk space distributed around the nodes, but it is shared, and the VLBI correlator has priority. If you need disk space for a short period, please speak to Cormac to make arrangements. Similarly if you need to do a large processing job, this should be coordinated with Cormac to avoid impacting correlator operations.
  
-**//Things you need to know://​** ​Cuppa02 ​is the head node (aliased as+**//Things you need to know://​** ​Cuppa01 ​is the head node (aliased as
 cuppahead). Most astro applications are installed on cuppahead). Most astro applications are installed on
 /nfs/apps for cluster-wide access. If there is software you need that isn't in /nfs/apps for cluster-wide access. If there is software you need that isn't in
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 you don't need. you don't need.
  
-**There is also /arch,** which is raided space, on cuppa03, 04 and 05. This is+**There is also /arch,** which is raided space, on cuppa03. This is
 larger storage space, but shared and priority is given to storing VLBI data for larger storage space, but shared and priority is given to storing VLBI data for
 correlation - so again, if you find yourself needing space of ~TB to store data correlation - so again, if you find yourself needing space of ~TB to store data
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 **To check how busy the cluster is** and pick a node that's not overrun at any given time, keep an eye on **To check how busy the cluster is** and pick a node that's not overrun at any given time, keep an eye on
-[[http://​ganglia.cira.curtin.edu.au/?​m=load_one&​r=hour&​s=by%2520name&​c=CUPPA&​h=&​sh=1&​hc=4&​z=small|Ganglia]]. ​Cuppa17 ​is the head node for the VLBI+[[http://​ganglia.cira.curtin.edu.au/?​m=load_one&​r=hour&​s=by%2520name&​c=CUPPA&​h=&​sh=1&​hc=4&​z=small|Ganglia]]. ​Cuppa03 ​is the head node for the VLBI
 correlator, which is the primary user of CUPPA. Please avoid using this node, especially the local disk space. correlator, which is the primary user of CUPPA. Please avoid using this node, especially the local disk space.
  
-There are 5 XRAIDs (disk chassis used for Australian VLBI), these are attached to cuppas 01 through 05. These nodes tend to do have very busy network connections,​ and cuppa05 ​experiences a lot of disk changes which makes it slightly unstable, so for most work you may prefer to use nodes 07 through ​20.+There are 5 XRAIDs (disk chassis used for Australian VLBI), these are attached to cuppas 01 through 05. These nodes tend to do have very busy network connections,​ and cuppa01 ​experiences a lot of disk changes which makes it slightly unstable, so for most work you may prefer to use nodes 07 through ​24.
  
  
-Nodes 07 through 20 should all be equivalent (cuppa19 is the LDAP server but that should not affect you).+Nodes 07 through 20 should all be equivalent (cuppa19 is the LDAP server but that should not affect you). Nodes 21-24 are storage servers, but may be used similarly to the other nodes.
  
-**//Main points://** Don't do big processing jobs on cuppa02 ​- as head node+**//Main points://** Don't do big processing jobs on cuppa01 ​- as head node
 that could potentially slow down everything. Try in general not to use cuppa01 that could potentially slow down everything. Try in general not to use cuppa01
 through 05 heavily, as they are regularly used for data transfers. Limited through 05 heavily, as they are regularly used for data transfers. Limited
-RAIDed (though not "​secure"​) space is on cuppa03-05. Please do not use the +RAIDed (though not "​secure"​) space is on cuppa03. Please do not use the 
-local disk space on cuppa17 ​as that is reserved for the VLBI correlator.+/data disk space on cuppa03 ​as that is reserved for the VLBI correlator.
  
 **If you have any questions,​** mostly we maintain the cluster ourselves, so talk to Cormac, and for IT support - hardware issues etc, talk to Ali, Shane or Mick, and cc to __scienceithelp at curtin.edu.au__ or __service.desk at curtin.edu.au__. If you get in anyone'​s way, it's likely to be Hayley or Cormac who unceremoniously kill your job - that doesn'​t happen often though! **If you have any questions,​** mostly we maintain the cluster ourselves, so talk to Cormac, and for IT support - hardware issues etc, talk to Ali, Shane or Mick, and cc to __scienceithelp at curtin.edu.au__ or __service.desk at curtin.edu.au__. If you get in anyone'​s way, it's likely to be Hayley or Cormac who unceremoniously kill your job - that doesn'​t happen often though!
correlator/cuppanew.txt · Last modified: 2015/02/09 14:09 by cormac