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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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Summer inventory clearance days for Radio Free HPC! We’re blasting through our processing backlog and getting the episodes out as fast as possible (but no faster). In this episode, we talk about the spate of MLperf benchmarks and how AMD hit it out of the park on their most recent earnings.
We start the episode with introductions, paying particular attention to Henry’s Las Cruces rammed earth survivalist bunker. A quick segue to how Google and Nvidia are battling for MLperf dominance in the latest round of benchmarks (here and here). Both companies have something good to talk about, which, as Shahin states “is the sign of a well-designed benchmark.”
Nvidia’s brand new A100 processor is showing great speed ups in the range of 1.5x to 2.5x vs. their former flagship V100 GPU. Meanwhile, Google’s new TPU v4 dominates their older v3 chips by 2.2x to 3.7x. In the call, the guys discuss the folks who didn’t submit MLperf results and the general question of whether vendors should submit public benchmark numbers. Shahin and Henry defend vendors who don’t submit benchmarks while Dan’s position can be summarized by “I needs me a benchmark.”
In perhaps the best segue of Dan’s podcasting life, he moves from record-breaking MLperf results to AMD’s record-breaking financial results. Revenue up 26% year to year, gross margin up 3%, earnings per share by 4x. What’s not to like? Great job AMD! This leads to a tangent about the difficulty of getting to smaller processes, TSMC failure to fab Intel’s 7nm parts and, somehow, to Henry making YouTube videos about melting stuff in his backyard wood-fired pizza oven. “Can Henry Melt It” would be the title and each episode would feature a variety of viewer suggested things for Henry to melt. I know that I’d watch it voraciously.
We also discuss the not yet revealed prize package for out latest contest and how it’s now much better because HPE/Cray sent us a few Cray keepsakes that will make their way into this bundle. Stay tuned for more details.
Henry Newman’s Reasons Why No One Should Ever be Online. Ever: Big bug in Cisco’s data center manager that allows anyone to spoof an administrator role by using a rest protocol (bypassing the web gui).
Catch of the Week:
Shahin: MIT makes a bigger atom to produce the largest quantum chip of its type. MIT blows up an atom to the size of a small melon in order to make a better quantum device. Ok, not really, but they did make a much bigger atom.
Henry: Netgear decides NOT to patch more than 40 models of home routers. While you can’t expect vendors to patch everything forever, some of these products were sold as late as 2017, which isn’t all that long ago. This has already cost the company one sale, as Dan, a loyal Netgear customer for more than a decade, said that his next purchase, a 16 port GB router, will not be a Netgear due to this issue. Henry also shared his rules for upgrading network gear: always upgrade after 3-4 years. Network gear always seems to fail when you need it most so upgrading according to age is a good policy. Plus, even if you’re upgrading to the same product specifications (i.e. a new 1Gb switch to replace an old 1Gb switch), you’ll almost always see a performance increase.
Dan: Intel’s Chief Government Affairs Office, Jeff Rittener, wrote an op-ed article discussing how it is vital for the US government at all levels needs to support US semiconductor companies in order to keep technology and jobs onshore. He made a very good case and it’s well worth a read.
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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…
The High Performance Computing Podcast



