Re: [Beowulf] IEEE 1588 (PTP) - a better cluster clock?

2007-07-24 Thread Jim Lux
At 01:11 PM 7/24/2007, Patrick Geoffray wrote: Hi Jim, Jim Lux wrote: Highly parallelized real time signal processing? Seems like a classic Wouldn't you need a real-time OS and a real-time communication layer to do real-time processing? Or at least within the same level of time accuracy ?

Re: [Beowulf] IEEE 1588 (PTP) - a better cluster clock?

2007-07-24 Thread Andrew Shewmaker
On 7/18/07, Patrick Ohly <[EMAIL PROTECTED]> wrote: * Have you heard of PTP and considered to use it in clusters? * How would applications or clusters benefit from a better cluster-wide clock? * What obstacles did or could prevent using PTP(d) for that purpose?

Re: [Beowulf] Sidebar: Vista Rant

2007-07-24 Thread Peter St. John
Well, if one were to accept my thesis that the principle design criterion of MS OS's (since about Win98) is market share (as oppsed to, developement environment, for unix; real-time processing, for OS9; fault-tolerance, for Tandem, etc) and if you define adware as willingly downloaded by the user

Re: [Beowulf] IEEE 1588 (PTP) - a better cluster clock?

2007-07-24 Thread Patrick Geoffray
Hi Jim, Jim Lux wrote: Highly parallelized real time signal processing? Seems like a classic Wouldn't you need a real-time OS and a real-time communication layer to do real-time processing? Or at least within the same level of time accuracy ? The Linux scheduler is still on a 10ms quantum o

Re: [Beowulf] Sidebar: Vista Rant

2007-07-24 Thread andrew holway
Viruses Infections Spyware Trojans and Adware On 24/07/07, Roberto Ammendola <[EMAIL PROTECTED]> wrote: Peter St. John wrote: > RGB asks, "...On my nice new dual core 2 GB laptop, Vista Home runs > like -- what? What is a > suitable metaphor for a system that can't even keep up with a moving >

Re: [Beowulf] Sidebar: Vista Rant

2007-07-24 Thread Roberto Ammendola
Peter St. John wrote: RGB asks, "...On my nice new dual core 2 GB laptop, Vista Home runs like -- what? What is a suitable metaphor for a system that can't even keep up with a moving mouse? ..." We found that best definition of Vista is: a virus. __

Re: [Beowulf] IEEE 1588 (PTP) - a better cluster clock?

2007-07-24 Thread Ashley Pittman
On Tue, 2007-07-24 at 14:37 +, Patrick Ohly wrote: > On Tue, 2007-07-24 at 15:15 +0100, Ashley Pittman wrote: > [examples for the need of a more accurate clock] > > But none of the ones you list are more than vaguely related to HPC. > [...] > > The only thing I've found ntp to be lacking in is

Re: [Beowulf] IEEE 1588 (PTP) - a better cluster clock?

2007-07-24 Thread Jim Lux
At 07:15 AM 7/24/2007, Ashley Pittman wrote: On Fri, 2007-07-20 at 16:41 -0700, Jim Lux wrote: > > There are tons of reasons why one might want more precision than NTP > can provide, leaving aside the obvious applications for things like > controlling test equipment. But none of the ones you lis

Re: [Beowulf] IEEE 1588 (PTP) - a better cluster clock?

2007-07-24 Thread Patrick Ohly
On Tue, 2007-07-24 at 15:15 +0100, Ashley Pittman wrote: [examples for the need of a more accurate clock] > But none of the ones you list are more than vaguely related to HPC. [...] > The only thing I've found ntp to be lacking in is the ability to > compile > complex software over NFS on 2.6 kerne

Re: [Beowulf] IEEE 1588 (PTP) - a better cluster clock?

2007-07-24 Thread Ashley Pittman
On Fri, 2007-07-20 at 16:41 -0700, Jim Lux wrote: > > There are tons of reasons why one might want more precision than NTP > can provide, leaving aside the obvious applications for things like > controlling test equipment. But none of the ones you list are more than vaguely related to HPC. Pe

[Beowulf] PARALLEL PROGRAMMING WORKSHOP Fall 2007, Call for Participation

2007-07-24 Thread Eugen Leitl
- Forwarded message from Rolf Rabenseifner <[EMAIL PROTECTED]> - From: Rolf Rabenseifner <[EMAIL PROTECTED]> Date: Tue, 24 Jul 2007 15:17:49 +0200 (CEST) To: [EMAIL PROTECTED] Subject: PARALLEL PROGRAMMING WORKSHOP Fall 2007, Call for Participation Sehr geehrte Dame, sehr geehrter Herr,