Re: [CentOS] best parallel / cluster SSH

2010-02-09 Thread Alan McKay
I mean if you go from supplying perl and some perl-scripted functionality, you either have to drop the functionality or some engineer has to rewrite the code in a different language - something that usually isn't cheap.  I've never tried perl2c - if such a thing exists it probably embeds

Re: [CentOS] best parallel / cluster SSH

2010-02-06 Thread m . roth
On 2/5/2010 5:22 PM, Alan McKay wrote: On Fri, Feb 5, 2010 at 1:31 PM, Les Mikeselllesmikes...@gmail.com wrote: Can you put a realistic price on what the extra resources would cost these days? Clearly you've never worked for a large company if you even ask that question. A $1 difference

Re: [CentOS] best parallel / cluster SSH

2010-02-06 Thread Les Mikesell
m.r...@5-cent.us wrote: Can you put a realistic price on what the extra resources would cost these days? Clearly you've never worked for a large company if you even ask that question. A $1 difference in cost over 100,000 units sold is $100,000 in your pocket. I recall the first model of

Re: [CentOS] best parallel / cluster SSH

2010-02-06 Thread Frank Cox
On Sat, 2010-02-06 at 17:26 -0600, Les Mikesell wrote: I mean if you go from supplying perl and some perl-scripted functionality, you either have to drop the functionality or some engineer has to rewrite the code in a different language The perl interpreter is already written in C so

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Christoph Maser
Am Donnerstag, den 04.02.2010, 19:31 +0100 schrieb Alan McKay: It depends on what you need to do. If you really have enough machines or long-running jobs that a shell loop through them isn't practical, you might want something higher-level like cfengine or puppet, or at least something

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Geoff Galitz
In (HPC) clustering pdsh is very popular. It's available in .tgz with spec-file and rebuilds nicely on c5 with rpmbuild -tb ... https://computing.llnl.gov/linux/pdsh.html Coming from the HPC world I've been a long time PDSH user. I believe it is available in rpmforge, so there is no

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Marcelo M. Garcia
Alan McKay wrote: It depends on what you need to do. If you really have enough machines or long-running jobs that a shell loop through them isn't practical, you might want something higher-level like cfengine or puppet, or at least something running under cron to make them independent.

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Les Mikesell
On 2/5/2010 8:44 AM, Marcelo M. Garcia wrote: Alan McKay wrote: It depends on what you need to do. If you really have enough machines or long-running jobs that a shell loop through them isn't practical, you might want something higher-level like cfengine or puppet, or at least something

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Alan McKay
On Fri, Feb 5, 2010 at 11:03 AM, Les Mikesell lesmikes...@gmail.com wrote: Python just seems like something that should be avoided in system management tools.  Remember having to do special case things like having to 'yum update python\* yum\*' sometimes to keep the rest of an update from

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread m . roth
On Fri, Feb 5, 2010 at 11:03 AM, Les Mikesell lesmikes...@gmail.com wrote: Python just seems like something that should be avoided in system management tools.  Remember having to do special case things like having to 'yum update python\* yum\*' sometimes to keep the rest of an update from

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Alan McKay
On Fri, Feb 5, 2010 at 12:45 PM, m.r...@5-cent.us wrote: Never had a problem with perl updates breaking anything. I do remember a few years back, when it seemed as though any time I tried to install or upgrade something that was in python, it *ALWAYS* wanted a different subrelease, and

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Les Mikesell
On 2/5/2010 11:30 AM, Alan McKay wrote: On Fri, Feb 5, 2010 at 11:03 AM, Les Mikeselllesmikes...@gmail.com wrote: Python just seems like something that should be avoided in system management tools. Remember having to do special case things like having to 'yum update python\* yum\*'

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Les Mikesell
On 2/5/2010 12:09 PM, Alan McKay wrote: On Fri, Feb 5, 2010 at 12:45 PM,m.r...@5-cent.us wrote: Never had a problem with perl updates breaking anything. I do remember a few years back, when it seemed as though any time I tried to install or upgrade something that was in python, it *ALWAYS*

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread John R Pierce
Les Mikesell wrote: We removed it from the Nortel BCM because the perl installation accounted for more than half the space on our embedded Linux. Can you put a realistic price on what the extra resources would cost these days? when you're running on an embedded single chip

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Alan McKay
On Fri, Feb 5, 2010 at 1:31 PM, Les Mikesell lesmikes...@gmail.com wrote: Can you put a realistic price on what the extra resources would cost these days? Clearly you've never worked for a large company if you even ask that question. A $1 difference in cost over 100,000 units sold is $100,000

Re: [CentOS] best parallel / cluster SSH

2010-02-05 Thread Les Mikesell
On 2/5/2010 5:22 PM, Alan McKay wrote: On Fri, Feb 5, 2010 at 1:31 PM, Les Mikeselllesmikes...@gmail.com wrote: Can you put a realistic price on what the extra resources would cost these days? Clearly you've never worked for a large company if you even ask that question. A $1 difference in

[CentOS] best parallel / cluster SSH

2010-02-04 Thread Alan McKay
Hey folks, I stumbled upon this while looking for something else http://www.linux.com/archive/feature/151340 And it is something I could actually really make use of. But right on that site they list 3 different ones, and so I'm wondering what all is out there and what I should use. Is there

Re: [CentOS] best parallel / cluster SSH

2010-02-04 Thread Les Mikesell
On 2/4/2010 11:45 AM, Alan McKay wrote: Hey folks, I stumbled upon this while looking for something else http://www.linux.com/archive/feature/151340 And it is something I could actually really make use of. But right on that site they list 3 different ones, and so I'm wondering what all is

Re: [CentOS] best parallel / cluster SSH

2010-02-04 Thread Alan McKay
It depends on what you need to do.  If you really have enough machines or long-running jobs that a shell loop through them isn't practical, you might want something higher-level like cfengine or puppet, or at least something running under cron to make them independent. cfengine or puppet (or

Re: [CentOS] best parallel / cluster SSH

2010-02-04 Thread nate
Alan McKay wrote: I was actually going to start another configuration management redux thread as a follow up to a thread I started a few months ago. As Les mentioned, it's far more common in that situation to use ssh key authentication and a for loop, if your ssh key has a pass phrase use a

Re: [CentOS] best parallel / cluster SSH

2010-02-04 Thread Gavin Carr
On Thu, Feb 04, 2010 at 01:31:39PM -0500, Alan McKay wrote: It depends on what you need to do.  If you really have enough machines or long-running jobs that a shell loop through them isn't practical, you might want something higher-level like cfengine or puppet, or at least something

Re: [CentOS] best parallel / cluster SSH

2010-02-04 Thread Les Mikesell
On 2/4/2010 12:31 PM, Alan McKay wrote: It depends on what you need to do. If you really have enough machines or long-running jobs that a shell loop through them isn't practical, you might want something higher-level like cfengine or puppet, or at least something running under cron to make

Re: [CentOS] best parallel / cluster SSH

2010-02-04 Thread Wade Hampton
I've been using clusterit for several years for multiple small clusters. It works well and was easy to install. I believe I got the Fedora source RPM and rebuilt it for CentOS. On Thu, Feb 4, 2010 at 1:50 PM, Gavin Carr ga...@openfusion.com.au wrote: On Thu, Feb 04, 2010 at 01:31:39PM -0500,

Re: [CentOS] best parallel / cluster SSH

2010-02-04 Thread Les Mikesell
On 2/4/2010 12:45 PM, nate wrote: Alan McKay wrote: I was actually going to start another configuration management redux thread as a follow up to a thread I started a few months ago. As Les mentioned, it's far more common in that situation to use ssh key authentication and a for loop, if

Re: [CentOS] best parallel / cluster SSH

2010-02-04 Thread Karanbir Singh
On 02/04/2010 06:31 PM, Alan McKay wrote: cfengine or puppet (or something else - slackmaster?) are where I want slackmaster, i dont know about - but are you refering to 'slack' ? its a fairly easy way to get started, and is essentially a wrapper around rsync. takes about 2 min to get setup

Re: [CentOS] best parallel / cluster SSH

2010-02-04 Thread Peter Kjellstrom
On Thursday 04 February 2010, Alan McKay wrote: Hey folks, I stumbled upon this while looking for something else http://www.linux.com/archive/feature/151340 And it is something I could actually really make use of. But right on that site they list 3 different ones, and so I'm wondering