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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 CENTOS
mkqdisk
mkqdisk(8) Quorum Disk Management mkqdisk(8) NAME
mkqdisk - Cluster Quorum Disk Utility WARNING
Use of this command can cause the cluster to malfunction. SYNOPSIS
mkqdisk [-?|-h] | [-L] | [-f label] [-c device -l label] [-d [-d ...]] DESCRIPTION
The mkqdisk command is used to create a new quorum disk or display existing quorum disks accessible from a given cluster node. OPTIONS
-c device -l label Initialize a new cluster quorum disk. This will destroy all data on the given device. If a cluster is currently using that device as a quorum disk, the entire cluster will malfunction. Do not run this on an active cluster when qdiskd is running. Only one device on the SAN should ever have the given label; using multiple different devices is currently not supported (it is expected a RAID array is used for quorum disk redundancy). The label can be any textual string up to 127 characters - and is therefore enough space to hold a UUID created with uuidgen(1). -f label Find the cluster quorum disk with the given label and display information about it. -L Display information on all accessible cluster quorum disks. -d Increase debugging level. Specify multiple times for more information. Currently, specifying more than twice has no effect. SEE ALSO
qdisk(5), qdiskd(8), uuidgen(1) July 2006 mkqdisk(8)