I/O bound computing clusters Post: 302692049

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Special Forums UNIX and Linux Applications High Performance Computing I/O bound computing clusters Post 302692049 by figaro on Monday 27th of August 2012 03:12:44 AM

08-27-2012

Registered User

Thank you for your response.
The application runs on a database which is multiple 100GB big and resides on one node only for now. The nodes are either on a local area network or wide area network and are idle the vast majority of the time. Almost all nodes are multi-core machines and currently do not have a database. In other words, the nodes could be put to good use if they had easy access to the data (for instance by having its own partition or LUN) or data is sent across via http (which is likely to be detrimental to performance, as I/O becomes the bottleneck).
Putting the logical partitions on each of the nodes seems like a fruitful route, given that the results are no more than a few GB in size. At the same time, it also seems fairly rigid, because if one of the nodes is down, the system needs to be aware that the missing results will need to be recalculated somewhere else.

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LEARN ABOUT ULTRIX

getnode

getnode(8)						      System Manager's Manual							getnode(8)

Name
       getnode - display one or more entries from the nodes database

Syntax
       /etc/getnode [ node...  ]

Description
       For  each  given  node argument, displays the corresponding node entry (or entries) from the nodes database.  The nodes database is the one
       used by DECnet.	If you do not specify any node argument(s), all of the entries in the nodes database are displayed.

       The node is either the node address or the node name for each node entry that you want to display.  (Note that you can  specify	more  than
       one node argument in a single command.)

       A node address is a decimal integer in the range of 1 to 1023 for single area networks, or has the format a.n for multiarea networks, where
       a is the network area number (a decimal integer in the range of 2 to 63) and n is the node number (a decimal integer in the range of  1	to
       1023).

       A node name can be from 1 to 6 alphanumeric characters, including at least 1 alphabetic character.

Examples
       # /etc/getnode 44.70 mynode <RET>
       This command displays the entries in the nodes database for nodes 44.70 and mynode.
       # /etc/getnode <RET>
       This command displays all of the entries in the nodes database.
       # /etc/getnode lttwi <RET>
       This command displays the entry in the nodes database for node lttwi.

See Also
       addnode(8), ccr(8), load(8), mop_mom(8), remnode(8), trigger(8)
       Guide to Ethernet Communication Servers

																	getnode(8)