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High Performance Computing
How to check performance of your HPC cluster?
Post 302644361 by albertspade on Monday 21st of May 2012 05:46:52 PM
05-21-2012
Thanks Otheus for your generous reply.
Its very helpful.
I configured my system and somehow able to get the results from HPL.
I used one website which says "How do I tune my HPL.dat file?" http: //www.advancedclustering. com/faq/how-do-i-tune-my-hpldat-file.html to create the auto generated HPL.dat file.
The parameters which I used are :
Nodes: 5
Cores per Node: 2
Memory per Node (MB): 2048
Block Size (NB): 128
But I don't know whether the parameters which I used are correct or not.
I built a cluster of 5 PC's and all of them are having intel core 2 duo processors. I don't even know what this block size signifies.
Also, is there a way to chaeck the performance of single PC with respect to its individual core? As I am having Core 2 duo PC, I want to check the performance of this PC while its using single core and on the other hand when it uses both cores.
Thanks.
---------- Post updated at 01:46 PM ---------- Previous update was at 01:30 PM ----------
I have one more query.
While going through website http ://hpl-calculator.sourceforge.net/
I came across one more parameter Operations Per Cycle, which by default they used 4. I don't understand how to calculate this value. I googled and there are various terms, flops, mips, instructions per cycle, instructions per second and other things. can you tell me how to calculate this value for core 2 duo processor and i7 processor? As now a days multiple cores are there in PCs this per second calculations are for single core or multiple core?
Thanks again...
Its very helpful.
I configured my system and somehow able to get the results from HPL.
I used one website which says "How do I tune my HPL.dat file?" http: //www.advancedclustering. com/faq/how-do-i-tune-my-hpldat-file.html to create the auto generated HPL.dat file.
The parameters which I used are :
Nodes: 5
Cores per Node: 2
Memory per Node (MB): 2048
Block Size (NB): 128
But I don't know whether the parameters which I used are correct or not.
I built a cluster of 5 PC's and all of them are having intel core 2 duo processors. I don't even know what this block size signifies.
Also, is there a way to chaeck the performance of single PC with respect to its individual core? As I am having Core 2 duo PC, I want to check the performance of this PC while its using single core and on the other hand when it uses both cores.
Thanks.
---------- Post updated at 01:46 PM ---------- Previous update was at 01:30 PM ----------
I have one more query.
While going through website http ://hpl-calculator.sourceforge.net/
I came across one more parameter Operations Per Cycle, which by default they used 4. I don't understand how to calculate this value. I googled and there are various terms, flops, mips, instructions per cycle, instructions per second and other things. can you tell me how to calculate this value for core 2 duo processor and i7 processor? As now a days multiple cores are there in PCs this per second calculations are for single core or multiple core?
Thanks again...
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LEARN ABOUT HPUX
cmruncl
cmruncl(1m) cmruncl(1m) NAME
cmruncl - run a high availability cluster SYNOPSIS
cmruncl [-f] [-v] [-n node_name...] [-t | -w none] DESCRIPTION
cmruncl causes all nodes in a configured cluster or all nodes specified to start their cluster daemons and form a new cluster. To start a cluster, a user must either be superuser(UID=0), or have an access policy of FULL_ADMIN allowed in the cluster configuration file. See access policy in cmquerycl(1m). This command should only be run when the cluster is not active on any of the configured nodes. This command verifies the network configu- ration before causing the nodes to start their cluster daemons. If a cluster is already running on a subset of the nodes, the cmrunnode command should be used to start the remaining nodes and force them to join the existing cluster. If node_name is not specified, the cluster daemons will be started on all the nodes in the cluster. All nodes in the cluster must be available for the cluster to start unless a subset of nodes is specified. Options cmruncl supports the following options: -f Force cluster startup without warning message and continuation prompt that are printed with the -n option. -v Verbose output will be displayed. -t Test only. Provide an assessment of the package placement without affecting the current state of the nodes or packages. The -w option is not required with the -t option as -t does not validate network connectivity, but assumes that all the nodes can meet any external dependencies such as EMS resources, package subnets, and storage. -n node_name... Start the cluster daemon on the specified subset of node(s). -w none By default network probing is performed to check that the network connectivity is the same as when the cluster was config- ured. Any anomalies are reported before the cluster daemons are started. The -w none option disables this probing. The option should only be used if this network configuration is known to be correct from a recent check. RETURN VALUE cmruncl returns the following value: 0 Successful completion. 1 Command failed. EXAMPLES
Run the cluster daemon: cmruncl Run the cluster daemons on node1 and node2: cmruncl -n node1 -n node2 AUTHOR
cmruncl was developed by HP. SEE ALSO
cmquerycl(1m), cmhaltcl(1m), cmhaltnode(1m), cmrunnode(1m), cmviewcl(1m), cmeval(1m). Requires Optional Serviceguard Software cmruncl(1m)