A cluster consists of a set of connected computers that work together so that they can be viewed as a single system.

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6answers
11k views

How to link processing power of old computers together?

I'm sitting on 8 old computers of varied sorts that are more or less useless at this point for any other purpose really. Is there a way I could link their hardware or processing power or whatever ...
1
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0answers
8 views

After installing slurm 14.11,there is not any script in /etc//init.d/

After installing the slurm 14.11,there should be a a slurm script in /etc/init.d/,but I did not find it in the directory,what's the reason?
0
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0answers
13 views

Hardware errors too frequent or expected?

We have a small linux/Xeon cluster at work, and lately several hosts have rebooted on their own. The maintenance team saw errors in /var/log/mcelog and replaced the memory in one host today. I decided ...
2
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0answers
15 views

Attach to the same tmux session from different nodes of a cluster

I'm working on a computing cluster which has several hundreds of nodes. A load-balancing scheme picks an idle node to login to when ssh-ing into the cluster. As a result, it is very unlikely to ...
2
votes
2answers
275 views

Safe to use a laptop as a non-stop number cruncher?

I have an Intel Core Duo laptop with 1GB RAM running Ubuntu Linux. I'd like to make it a node in a cluster and use it to crunch numbers non-stop (100% CPU work). Someone mentioned to me that in ...
1
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2answers
1k views

Sharing RAM resources between 2 or more computers

I know there was a somewhat similar question before: How to share CPU or RAM? But, let me just specify it a little more... When Microsoft Windows requires more RAM capacity than available it uses a ...
0
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0answers
10 views

Cluster 2 physical PCs using Hyper-V 2012

I recently purchased 2 identical PCs for development purposes, we are running Hyper-V 2012 and I just wanted to know if there were any guides or similar that show how I could cluster both PCs ...
0
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0answers
19 views

Batch WinRAR Cluster Error

I've recently have had a problem with a small project of a batch cluster WinRAR cracker of numeric. I have a master file that controls all the variables for the clusters and have 8 clusters. I have ...
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0answers
46 views

Kickstart file not being received - rocks cluster [on hold]

We are setting up a rocks cluster. We have one compute node directly connected via a cat5 ethernet cable. Rocks is installed on our main node, and we are trying to install a compute node. The node is ...
1
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3answers
2k views

How do I temporarily take a node out from SGE (Sun Grid Engine)?

I'm having some trouble with a specific node. Until I resolve it, I don't want any jobs to run on ii. How can I temporarily take this node out of the nodes "pool"?
0
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1answer
19 views

generic remote process accelerator

is there a solution to accelerate a local process using remote PC CPUs (and/or GPU)? My ideal solution should: work without the need to rewrite the app to use a specific library; work on ...
1
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0answers
33 views

How to set up a productive and flexible Linux cluster?

I have 7 old computers that are a few years old. I want to cluster them together to create a linux cluster that will run general purpose software(not cluster specific). Is there any software that can ...
0
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2answers
115 views

How to mount 7 desktop pc's into a 7u rack? [closed]

I am clustering 7 desktop computers and would like to put them in a rack. I have an 8U rack and 1U will be taken up by the ethernet switch. I will take out the optical drives. I plan on putting each ...
1
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0answers
41 views

Create a decentralized file server out of multiple desktops with Windows 7 OS

I have a bunch of desktops with Windows 7 OS and some unused hard disk space on each one that I would like to connect together and use as a big file server that can be seen by all the desktops. I want ...
13
votes
1answer
485 views

How to determine the physical location of data on a disc?

Does anybody know of a way to find out where, physically on a CD or DVD a given piece of data would be located? I am trying to watch a DVD at the moment, and am about half-way through, but it keeps ...
0
votes
0answers
30 views

recover deleted files in linux cluster

I just deleted some files that were very critical to my project on a linux cluster .I was wondering if there is a specific way to recover them. This is very critical and I would appreciate a detailed ...
1
vote
1answer
45 views

How to save job info (qstat) in SGE when submitting to qsub?

When submitting a job, I am able to provide qsub with the path for the standard output and the standard error. On the other side, while my job 12345 is running, I can access to extra info related to ...
0
votes
1answer
70 views

OS partition has 512 bytes clusters, should I convert to 4k?

I made a mistake and formatted the OS partition with 512 bytes cluster size, thinking that this will save a lot of space when storing small files (That was a long time ago, I didn't know that it will ...
0
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1answer
125 views

How do I display directories in colour on remote systems over ssh via Terminal?

When I do ls in Terminal.app, I see that directories on my local system are in colour. However, when I connect to a remote cluster via ssh, ls output is no longer coloured. Is there a way to have ls ...
1
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1answer
272 views

Create a GPFS Administrative account

i try to install GPFS on Windows Server 2008 R2, after successfully install GPFS i want to use the GPFS Command Prompt. But when i type in some Commands there comes a error: "mmstartup cannot execute ...
0
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2answers
80 views

CNAME to shared IP on a cluster

I'm trying to set a CNAME record (www) at ISP-A to forward to a subdomain at ISP-B. the domain/website at ISP-A works flawlessly at ISP-A, the website at the subdomain at ISP-B works also good. but ...
0
votes
1answer
200 views

virtual machine replication between two separated Hyper-v clusters

I have two identical hyper-v cluster configurations. Here is the configuration: 2 hyper-v servers in cluster with shared via fiber channel storage. There is a 10 Gbit ethernet between these ...
1
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0answers
35 views

How to maintain servers in general [closed]

I'm a programmer working at a tech company. I really want to learn how to properly maintain a small server cluster (say a dozen racks) which we have at work. I consider myself a power linux user, and ...
0
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2answers
60 views

Is there a way to build cluster machine that behaves like a single PC? [closed]

Is there some way to build a cluster from several desktops in such a way, that it can run an unprepared application and be seen as just a multicore CPU? I understand it will be a lot slower than ...
0
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0answers
67 views

How to setup openlava cluster environment without root?

I found the guide here: http://www.openlava.org/documentation/guide/getting_started.html and the thread here: https://groups.google.com/forum/#!topic/openlava-users/SCBPzOqoJ8U It says that openlava ...
2
votes
4answers
120 views

Manage a few Linux servers at once

I have a small cluster that consists of a few Linux nodes. There's a shared NFS, and I have the same user account with shared SSH keys on all nodes, but other than that each node has it's-own file ...
0
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0answers
53 views

AD RMS policy templates recieve a “no longer exists error” when they are there

Recently we added in a few new policy templates to AD RMS but when we try to apply them in FSRM they receive a no longer available error. When I try to apply the template to a folder structure I can ...
0
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0answers
33 views

ZSH and Passwordless access with SSH in a shared home environment

I have a small cluster with some nodes which share their home folder through NFS. I allow passwordless SSH access to the users with this script: if [[ -e $homeDirs/$username/.ssh/id_rsa.pub ]]; then ...
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0answers
132 views

Setting up an Ubuntu Linux scalable web video cluster

I'm in the process of setting up what I hope will be a robust and scalable video processing cluster for a website I'm creating. Currently, I am processing video uploads with FFMPEG on the same web ...
0
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0answers
301 views

Cannot copy over 7MB file to Samba cluster on Centos 6.5

I have followed these instructions (with lots of updates since it's old) to get working two nodes Samba cluster in my VirtualBox lab. It's almost done, but I experience strange issue and does not know ...
-1
votes
2answers
798 views

Difference between Compute Node and Compute Cluster [closed]

I have to give a presentation on Super Computing and I came across this pdf http://yuva.cdac.in/YuvaII/YUVA_2%20leaflet.pdf. As mentioned in page 2 what is the difference between Computer Node and ...
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0answers
25 views

Fast removal of millions of files on a remote compute cluster [duplicate]

I would like to know what's the fastest way to remove massive number of files on a remote compute cluster (linux). I have 1000 folders to delete permanently - each containing about 200k files with ...
0
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0answers
271 views

Beowulf cluster possible?

I don't really know where to find people who have experience in building computer clusters, so I thought maybe someone from here might answer my question. Basically I have two machines at my ...
-1
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1answer
50 views

How can I use computers with RJ-11 ports in an Ethernet network?

In my school are many really old computers with Pentium 3 processors and Windows 95. I'd like to make a cluster of them. Those computers have RJ-11 ports, not RJ-45 and I don't know if I can use an ...
0
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1answer
161 views

So I found and marked some bad clusters—now what?

I don't know exactly why, but hard drive failure happens to me quite often. This time around, three out of my eight drives failed almost at the same time (two HDDs and one SSD). I still don't know ...
1
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0answers
139 views

Can I build a cluster with Mac and Linux computers?

I do video editing on a Mac and I'd like to setup a cluster for distributed rendering. I don't really have the money to buy several Macs and make a cluster from those (besides, Xgrid is dead). How can ...
3
votes
2answers
441 views

Installing Sun/Oracle Grid Engine on a single machine

I want to install a Grid Engine cluster entirely on my laptop, the "cluster" having only two nodes, one head node and one node for computing. The nodes should run within the same instance of the same ...
1
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2answers
115 views

Can i use multiple computers to run different programs with the same desktop environment?

Is it possible to connect a laptop to a desktop computer in a way that i can run programs on the laptop and see them with barely any lag on my desktop computer? I'm not looking for a separate remote ...
1
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0answers
51 views

Recycling service running in a cluster on Windows 2003 R2

In Win2003 R2, I have a two node cluster that has one resource which has a memory leak. I was thinking of setting up a batch file to recycle it using SC, NET, or better yet PSSERVICE (from ...
1
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4answers
1k views

Creating a home server cluster for data analysis

I've seen a couple of questions on here that are similar to what I'm thinking, but not quite. So, I figured I'd ask and see what falls out. Basically, I have 2 or 3 old, slower-ish laptops laying ...
12
votes
7answers
4k views

Building a home cluster - hardware and cost analysis [closed]

Does anyone know some links / books / anything you can think of, that describe the process of building a little home cluster (when I say home, it doesn't necessarily mean for keeping at home - just ...
1
vote
1answer
58 views

Send files with scp while being logged on cluster interface

I have to do some work on a Torque cluster where I log on a User interface via ssh. I transfer files to my directory of the cluster and get files from the directory by using scp in my normal terminal ...
0
votes
1answer
28 views

How to know the PBS batch job submit time inside the script being excuted?

I'm using the PBS qsub to run a script on a cluster that must output a report file named with the batch job submit time. The batch job submit time is the time it joins the PBS batch job que. I ...
0
votes
1answer
195 views

How do you make multiple computers work on the same task? (hash cracking)

This is a question that's been plaguing me since I saw the following YouTube video: http://www.youtube.com/watch?v=TBXBB5sy5sA This man installed 20 video cards across 5 different rigs, all running ...
0
votes
1answer
259 views

Kerrighed cluster does not use all nodes when running OpenMP

I've been given access to a recently built cluster that uses Kerrighed. I'm the first user of this cluster, so setup and configuration problems may be a possibility. I'm also totally new to ...
1
vote
1answer
1k views

Hadoop installation on ubuntu

I installed Hadoop on ubuntu from the .deb package when I run start-all.sh I get this error I configured the core-site.xml for hdfs:localhost:9001 but i gives me the error. I think the problem in the ...
0
votes
1answer
131 views

Scheduler for sequential jobs on Linux

I am running some programs over a cluster and I would like to run them in a sequence, i.e when the first program terminates the second one starts and so on. This is so that my cluster does not exceed ...
1
vote
1answer
129 views

Configuring MPI on 2 nodes

I'm trying to create really simple "cluster" from 2 multicore computers using openmpi. My problem is that I can't find any tutorials on that matter. I don't want to use torque because it's not ...
1
vote
1answer
76 views

Shelves for super computing cluster [closed]

So I am currently running a small project with a few friends and we require a 2 Teraflop super computing cluster we have gathered all the money for this project mainly from donations and we need to ...
3
votes
2answers
1k views

ntpdate with crontab or ntpd?

(1)autostart one ntpd service in all cluster nodes and point the reference serve to one LAN server. (2)use crontab to ntpdate every certain minutes. In cluster environment, which will be a better ...