Topics including (but not limited to)....
Radio Free HPC (RFHPC) started in 2012 and, after a short break of 193 months, has returned to the airwaves (cyber waves?) with co-hosts Dan Olds, Henry Newman, and Shahin Khan.
The podcast covers a wide range of topics but is particularly focused on data center technology and challenges. These include high performance computing, power and cooling, new technology, and, really, whatever the hell they want to talk about.
Quick FAQ
"Why are you just covering HPC? There's this new thing called AI, have you heard of it?"
Yeah, we've heard of it and we do cover it. To us, HPC is a broad term used to refer to a very broad group of apps/workloads that have common characteristics.
- They are computationally intense
- Time to solution and quality of solution are critical
- The output is important enough to justify investment in high-end clusters and associated hardware/software
AI meets all of the criteria above just like bioscience, aerospace, weather prediction, and several other domains. In fact, AI is or will soon be folded into the workflows of nearly every 'traditional' HPC and enterprise application over time. This is going to put a lot of pressure on data centers and we'll be talking about how to deal with it.
"Was the old version of Radio Free HPC popular? I've never heard of it..."
Yes, it rose from obscurity to being mildly popular and, at times, entertaining. At our peak, we had as many as 16 sustained listeners and as many as 19 theoretical max listeners.
"I listened to the old show a couple of times and liked the arguing. Will there be more of that in this reboot?"
Yes, in fact we expect as much as 29% more arguing and a significant increase in the number of personal insults per episode.
"How often will this thing come out and how do I find out about it?"
We used to try to do weekly shows but failed due to other commitments, travel, etc. And there were just weeks when nothing important happened. But to answer your question, could be every couple of weeks, could be once a month, or we could record a marathon 8-10 hour single episode. Depends on what's happening and our mood.
We're getting together our RSS feeds and such but in the short term we'll be publicizing the episodes through the RFHPC X account and our individual social media accounts.
Ok, enough questions. If you want to learn more about the show and hosts, check out the "About" page.
Here are our most recent episodes along with the 345 or so previous editions, enjoy!
Latest Episode
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Asian Student Cluster Competition
The ever-popular “calendar segment” is back (yes, that is us being sarcastic) as Dan describes his upcoming trip to Dalian, China for the Asian Student Cluster competition. 20 teams are expected to compete, mostly from mainland China, but also from Europe, South America and other parts of Asia. All of them have gone through a rigorous qualifying process. Chinese vendor Inspur provides all the equipment (except for accelerators, which remain the responsibility of the teams) based on the configuration that the teams request.
As always, the team, and the rest of humanity, is highly supportive of the student cluster tournaments that take place at SC, ISC, and this Asian one, in addition to many regional supporting events.
Dan also lets us know how to go about picking the right seat in the airplane. There’s an app for that!New Optane
Intel’s new Optane is M.2 format with 16GB or 32GB of Opatne and 256GB, 512GB, or 1TB of Flash backing it. This made Henry think of history of caching and how people used to go through laborious data placement on outer cylinders of hard disks. Then you had DIMMs with Flash behind it. The discussion goes to the algorithms and policies that manage data movement, which is another form of optimizing workload management, and the different combinations of fast/small/expensive capacity backed up with slower/larger/cheaper capacity. And how persistence impacts this equation and to what extent applications may want to optimize around these. Then there is in-memory processing, ram-disk, and how in the future, the ever-increasing size of memory can make those standard practice.
Catch of the Week


Henry:
Henry is catchless but we can expect a healthy debate. Shahin produces two to make up for it.
Shahin:
Shahin has new reinforcement that IoT and HPC will converge in interesting ways. 1) We all know that IoT is the fountain of data and will generates so much data that you need HPC (and AI) to make sense of them, but 2) what is also very interesting Digital twins will need to simulate and predict the behavior of the real thing.
What we mean when we talk about digital twins
“Watching it prompted me to wonder how much data it takes to create a digital twin. If I had a digital simulacrum of a machine and could apply different environmental or mechanical factors to it, how large could that original simulacrum be? It turns out that’s not how digital twins work. They aren’t virtual doppelgangers. They are actually a series of algorithms that connote how machine moves or behaves. In other words, a twin isn’t a twin so much as it’s…math.”
Amazon Workers Are Listening to What You Tell Alexa
“A global team reviews audio clips in an effort to help the voice-activated assistant respond to commands. The team comprises a mix of contractors and full-time Amazon employees who work in outposts from Boston to Costa Rica, India and Romania, according to the people, who signed nondisclosure agreements barring them from speaking publicly about the program. They work nine hours a day, with each reviewer parsing as many as 1,000 audio clips per shift, according to two workers based at Amazon’s Bucharest office, which takes up the top three floors of the Globalworth building in the Romanian capital’s up-and-coming Pipera district. The modern facility stands out amid the crumbling infrastructure and bears no exterior sign advertising Amazon’s presence.”
Shahin thinks it’s as simple as supervised learning needing supervisors, so the question is the legal framework and jurisdiction issues, and social policy, and not technology.
Dan:
It is time to panic more as Dan shares the story of the Chinese scientist who’s presumably blended monkey and human genes. It’s Planet of the Apes all over again.
Chines Scientists Gene-Hacked Super Smart Human-Monkey Hybrids
“For the first time, scientists have used gene-editing techniques to make monkey brains more humanlike. The monkeys, rhesus macaques, got smarter — they had superior memories to unaltered monkeys, according to recently-published research that’s kicked off a fiery debate among ethicists about how far scientists should be able to take genetic experimentation.”
Listen in to hear the full conversation.
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Recent Episodes
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Episode 346: SC22 Preview
We’ve got the whole crew here as we look at the upcoming SC22 event. How many will be there? What will be happening? We answer only some of these questions.…
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Episode 345: Dow Gets Cloudy
Dan rides alone on this one as he interviews the HPC folks from Dow who are behind their move to cloud bursting. Interesting and informative. *Download the MP3 * Follow…
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Episode 344: Finally back! And with a new co-host!
We introduce new co-host Ben Carr and talk some NIST and Intel trevails. RadioFreeHPC is distributed in partnership with HPCwire. *Download the MP3 * Follow us on Twitter * Subscribe on Spotify * Subscribe…
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Episode 343: It’s GTC, Baby
In this episode of RadioFreeHPC, Dan and Jessi talk GTC along with special guest Todd Weiss. RadioFreeHPC is distributed in partnership with HPCwire. *Download the MP3
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Episode 342: Jazz, Melting Diamonds, and Schrödinger’s Cat
In this episode of RadioFreeHPC, the crew round up the most intriguing batch of recent HPC topics including Graphcore, HPC efforts to better understand melting diamonds and Jazz, as well…
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Episode 341: Ponte Vecchio
In this episode of RadioFreeHPC, the crew talk Intel’s Ponte Vecchio. RadioFreeHPC is distributed in partnership with HPCwire. *Download the MP3 * Follow us on Twitter * Subscribe on Spotify * Subscribe on…
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Episode 340: HPC with Trish Damkroger and Brent Gorda
In this episode of RadioFreeHPC, Dan and Jessi are joined by Trish Damkroger and Brent Gorda to talk HPC topics, thoughts, and intriguing trends. RadioFreeHPC is distributed in partnership with HPCwire.…
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Episode 339: 12 Cores Per Soul
In this episode of RadioFreeHPC, the crew discusses Intel’s investment into RISC-V, the 2022 Winter Classic student cluster competition, and quantum computing in Canada. RadioFreeHPC is distributed in partnership with HPCwire.…
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Episode 338: NVIDIA Slinks Away, Meta Bulks Up, And We Zap Bugs
In this episode of RadioFreeHPC, the crew talks Meta’s new AI supercomputer, NVIDIA abandoning ARM, and our latest competition winners. RadioFreeHPC is brought to you by the Surfs Up Hippie and…
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