Comments on: When assessing cloud HPC, don’t forget queue wait times http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/ HPC News Without the Noise for Supercomputing Professionals | insideHPC Fri, 03 May 2013 04:44:25 +0000 hourly 1 http://wordpress.org/?v=3.1.1 By: Penguin launches on demand HPC utility | insideHPC.com http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-178116 Penguin launches on demand HPC utility | insideHPC.com Thu, 13 Aug 2009 14:24:14 +0000 http://insidehpc.com/?p=6576#comment-178116 [...] motivator, but as you’ll read in this series of posts between Ian Foster and I (here, here, and here) it always underpins ‘when’ your answer is available. Penguin’s offering is not virtualized, [...] [...] motivator, but as you’ll read in this series of posts between Ian Foster and I (here, here, and here) it always underpins ‘when’ your answer is available. Penguin’s offering is not virtualized, [...]

]]> By: <fb:name linked="false" useyou="false" uid="100000128589029">E Douglas Jensen</fb:name> http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-177989 E Douglas Jensen Wed, 12 Aug 2009 11:43:49 +0000 http://insidehpc.com/?p=6576#comment-177989 "...what if I don’t care how fast my programs run, I simply want to run them as soon as possible? In that case, the relevant metric is not execution time but elapsed time from submission to the completion of execution. (In other words, the time that we must wait before execution starts becomes significant.)" Those are two different metrics. Elapsed time from submission to completion of execution is called "sojourn time," the time we muct wait before execution starts is called "waiting time." Those concepts are widely used in fields such as stochastic systems, noon-deterministic scheduling theory, etc. Google Scholar and CiteSeer are your friends. “…what if I don’t care how fast my programs run, I simply want to run them as soon as possible? In that case, the relevant metric is not execution time but elapsed time from submission to the completion of execution. (In other words, the time that we must wait before execution starts becomes significant.)”

Those are two different metrics. Elapsed time from submission to completion of execution is called “sojourn time,” the time we muct wait before execution starts is called “waiting time.” Those concepts are widely used in fields such as stochastic systems, noon-deterministic scheduling theory, etc. Google Scholar and CiteSeer are your friends.

]]> By: Virtualization and process migration | insideHPC.com http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-177747 Virtualization and process migration | insideHPC.com Mon, 10 Aug 2009 12:55:10 +0000 http://insidehpc.com/?p=6576#comment-177747 [...] right in that we still have a long way to go given some of the results we’re seeing now (see here and here, for example, on EC2 results) but the flexibility this would give center operators in [...] [...] right in that we still have a long way to go given some of the results we’re seeing now (see here and here, for example, on EC2 results) but the flexibility this would give center operators in [...]

]]> By: High-performance Computing Isn’t Always About Performance [GigaOM] | BYOHosting.com Blogs http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-177518 High-performance Computing Isn’t Always About Performance [GigaOM] | BYOHosting.com Blogs Sat, 08 Aug 2009 10:22:48 +0000 http://insidehpc.com/?p=6576#comment-177518 [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...] [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...]

]]> By: High-performance Computing Isn’t Always About Performance | 4nasco Technology http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-177517 High-performance Computing Isn’t Always About Performance | 4nasco Technology Sat, 08 Aug 2009 10:18:55 +0000 http://insidehpc.com/?p=6576#comment-177517 [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...] [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...]

]]> By: High-performance Computing Isn’t Always About Performance | Design Website Easy http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-177515 High-performance Computing Isn’t Always About Performance | Design Website Easy Sat, 08 Aug 2009 09:36:15 +0000 http://insidehpc.com/?p=6576#comment-177515 [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...] [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...]

]]> By: High-performance Computing Isn’t Always About Performance | ScooperNews.com http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-177497 High-performance Computing Isn’t Always About Performance | ScooperNews.com Sat, 08 Aug 2009 02:45:46 +0000 http://insidehpc.com/?p=6576#comment-177497 [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...] [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...]

]]> By: High-performance Computing Isn’t Always About Performance | Design Website http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-177489 High-performance Computing Isn’t Always About Performance | Design Website Sat, 08 Aug 2009 01:24:11 +0000 http://insidehpc.com/?p=6576#comment-177489 [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...] [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...]

]]> By: High-performance Computing Isn’t Always About Performance | Stoth http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-177485 High-performance Computing Isn’t Always About Performance | Stoth Sat, 08 Aug 2009 00:34:36 +0000 http://insidehpc.com/?p=6576#comment-177485 [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...] [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...]

]]> By: High-performance Computing Isn’t Always About Performance http://insidehpc.com/2009/08/05/queue-wait-time-assessing-cloud-hpc-performance/#comment-177483 High-performance Computing Isn’t Always About Performance Sat, 08 Aug 2009 00:07:15 +0000 http://insidehpc.com/?p=6576#comment-177483 [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...] [...] contrary opinions from the folks who actually run supercomputers. And thanks to John West over at InsideHPC, I read a blog post by Ian Foster, associate division director for Mathematics and Computer Science [...]

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