glass.rutgers.edu

glennklockwood.blogspot.com

Glenn K. Lockwood: Thoughts on the NSF Future Directions Interim Report

https://glennklockwood.blogspot.com/2015/01/thoughts-on-nsf-future-directions.html

Glenn K. Lockwood. Personal thoughts and opinions of a supercomputing enthusiast. Wednesday, January 28, 2015. Thoughts on the NSF Future Directions Interim Report. The National Academies recently released an interim report entitled Future Directions for NSF Advanced Computing Infrastructure to Support U.S. Science and Engineering in 2017-2020. As a part of a $723,000 award. With that being said, I wrote this all up pretty hastily. Some of it may be worded strongly, and although I don't mean to offen...

glennklockwood.blogspot.com

Glenn K. Lockwood: December 2013

https://glennklockwood.blogspot.com/2013_12_01_archive.html

Glenn K. Lockwood. Personal thoughts and opinions of a supercomputing enthusiast. Saturday, December 14, 2013. High-Performance Virtualization: SR-IOV and InfiniBand. About a week ago I posted a brief introduction to SR-IOV and a few early results. SR-IOV performance over 10gig is a horse that is rapidly being beaten to death though, and in the arena of supercomputing, it's not even that relevant. Rather, InfiniBand dominates the high-end market. As such, I did not. This post is a little long, so please ...

glennklockwood.blogspot.com

Glenn K. Lockwood: July 2015

https://glennklockwood.blogspot.com/2015_07_01_archive.html

Glenn K. Lockwood. Personal thoughts and opinions of a supercomputing enthusiast. Monday, July 20, 2015. On "active learning" and teaching science. Nature ran an article last week by Dr. Mitchell Waldrop titled " Why we are teaching science wrong, and how to make it right. Of the Socratic method, is how critical thinking skills are developed. If this concept of education by application is truly new to the life sciences, then that is a shortcoming that is not. Effective education takes time. Students spen...

glennklockwood.blogspot.com

Glenn K. Lockwood: November 2014

https://glennklockwood.blogspot.com/2014_11_01_archive.html

Glenn K. Lockwood. Personal thoughts and opinions of a supercomputing enthusiast. Wednesday, November 5, 2014. Storage Utilization in the Long Tail of Science. Take, for example, the biggest and baddest DNA sequencer on the market. Figure 1. File size distribution of a single flow cell output ( 770 gigabases) on Illumina's highest-end sequencing platform. And Lustre at Sanger. This long tail of science is also using up a huge amount of the supercomputing resources made available to the national open scie...

glennklockwood.blogspot.com

Glenn K. Lockwood: January 2014

https://glennklockwood.blogspot.com/2014_01_01_archive.html

Glenn K. Lockwood. Personal thoughts and opinions of a supercomputing enthusiast. Wednesday, January 15, 2014. The $1000 Genome - A Computational Perspective. What follows are some thoughts and back-of-the-envelope cost considerations that arise from the computational requirements that high-throughput sequencers will be demanding. Edit on Jan 17. Illumina made the big announcement yesterday that they will begin shipping a new high-throughput sequencer. What exactly falls under this $137 "hardware" cost i...

glennklockwood.com

Managing Process Affinity in Linux

http://www.glennklockwood.com/hpc-howtos/process-affinity.html

Managing Process Affinity in Linux. 2 Types of Thread Scheduling. 31 The Linux-Portable Way (taskset). 32 The Other Linux-Portable Way (numactl). 33 Using OpenMP Runtime Extensions. To get an idea of what your multithreaded application is doing while it is running, you can use the. Assuming your executable is called. You can easily see what cores each thread is using by issuing the following command in bash:. For i in $(pgrep application.x); do ps -mo pid,tid,fname,user,psr -p $i;done. Run thread0 and th...

glennklockwood.blogspot.com

Glenn K. Lockwood: On "active learning" and teaching science

https://glennklockwood.blogspot.com/2015/07/on-active-learning-and-teaching-science.html

Glenn K. Lockwood. Personal thoughts and opinions of a supercomputing enthusiast. Monday, July 20, 2015. On "active learning" and teaching science. Nature ran an article last week by Dr. Mitchell Waldrop titled " Why we are teaching science wrong, and how to make it right. Of the Socratic method, is how critical thinking skills are developed. If this concept of education by application is truly new to the life sciences, then that is a shortcoming that is not. Effective education takes time. Students spen...

glennklockwood.blogspot.com

Glenn K. Lockwood: April 2014

https://glennklockwood.blogspot.com/2014_04_01_archive.html

Glenn K. Lockwood. Personal thoughts and opinions of a supercomputing enthusiast. Tuesday, April 29, 2014. Being a Successful Researcher. The treatment of graduate students and postdocs. And how people are being forced. In fact, it seems like the most universal qualification that comes with a Ph.D. is being able to complain about academia. Recently posted a blog titled " How to stand out in academic scientific research. Which boils down to a few tips on being an outstanding (in the literal sense of the w...

glennklockwood.blogspot.com

Glenn K. Lockwood: July 2013

https://glennklockwood.blogspot.com/2013_07_01_archive.html

Glenn K. Lockwood. Personal thoughts and opinions of a supercomputing enthusiast. Tuesday, July 2, 2013. What "university-owned" supercomputers mean to me. The opinions and analysis expressed here are solely my own and do not reflect those of my employer or its funders. InsideHPC ran an article yesterday called " Purdue Supercomputing Empowers Researchers. Which references an editorial called " What a supercomputer at Purdue means to you. The Real Buy-in Price of Supercomputing. For no-commitment superco...

glennklockwood.blogspot.com

Glenn K. Lockwood: More Conjecture on KNL's Near Memory

https://glennklockwood.blogspot.com/2015/04/more-conjecture-on-knls-near-memory.html

Glenn K. Lockwood. Personal thoughts and opinions of a supercomputing enthusiast. Wednesday, April 29, 2015. More Conjecture on KNL's Near Memory. The Platform ran an interesting collection of conjectures on how KNL's on-package MCDRAM might be used. This morning, and I recommend reading through it if you're following the race to exascale. I was originally going to write this commentary as a Google post. But it got a little long, so pardon the lack of a proper lead-in here. Glenn K. Lockwood. I also work...