Glenn K. Lockwood
@glennklockwood.mast.hpc.social.ap.brid.gy
I am a supercomputing enthusiast, but I usually don't know what I'm talking about. I post about large-scale infrastructure for #HPC and #AI.
🌉 bridged from https://mast.hpc.social/@glennklockwood on the fediverse by https://fed.brid.gy/
🌉 bridged from https://mast.hpc.social/@glennklockwood on the fediverse by https://fed.brid.gy/
This is kinda funny. At the risk of punching down, I know of at least one big storage deal that my employer got a crack at as a result of DDN doubling the price of the flash after their initial bid.
If that’s what they consider helping people deal with rising flash prices, I hope they keep […]
If that’s what they consider helping people deal with rising flash prices, I hope they keep […]
Original post on mast.hpc.social
mast.hpc.social
December 6, 2025 at 1:00 AM
This is kinda funny. At the risk of punching down, I know of at least one big storage deal that my employer got a crack at as a result of DDN doubling the price of the flash after their initial bid.
If that’s what they consider helping people deal with rising flash prices, I hope they keep […]
If that’s what they consider helping people deal with rising flash prices, I hope they keep […]
Philosophical Q: what is the role of industry in the CS peer review process? I am no longer a researcher and no longer publish (so far), but am still invited to review papers/proposals/projects/abstracts. It's not really my job to do this anymore, but I still feel partly obligated.
Adding to […]
Adding to […]
Original post on mast.hpc.social
mast.hpc.social
December 5, 2025 at 8:21 PM
Philosophical Q: what is the role of industry in the CS peer review process? I am no longer a researcher and no longer publish (so far), but am still invited to review papers/proposals/projects/abstracts. It's not really my job to do this anymore, but I still feel partly obligated.
Adding to […]
Adding to […]
Honest Q: what, exactly, is an AI factory?
December 4, 2025 at 1:52 AM
Honest Q: what, exactly, is an AI factory?
Helios sounds like AMD's answer to NVIDIA's rack-scale NVLink, but it uses UALink over Ethernet with custom Broadcom scale-up switches. Interestingly, HPE will ship its Helios rack before its own Cray GX rack. Another example of #hpc playing second fiddle to #AI […]
Original post on mast.hpc.social
mast.hpc.social
December 3, 2025 at 8:16 AM
Helios sounds like AMD's answer to NVIDIA's rack-scale NVLink, but it uses UALink over Ethernet with custom Broadcom scale-up switches. Interestingly, HPE will ship its Helios rack before its own Cray GX rack. Another example of #hpc playing second fiddle to #AI […]
Wouldn’t be a trip to Oak Ridge National Lab without a leg on one of these lil guys.
December 3, 2025 at 1:59 AM
Wouldn’t be a trip to Oak Ridge National Lab without a leg on one of these lil guys.
I wrote up my notes from #SC25. Have a look: https://blog.glennklockwood.com/2025/12/sc25-recap.html
I’ll keep picking away at the editing, but would love to hear more from others about what stood out to them. I wasn’t at the conference itself as much this years as in the past, so I know I […]
I’ll keep picking away at the editing, but would love to hear more from others about what stood out to them. I wasn’t at the conference itself as much this years as in the past, so I know I […]
Original post on mast.hpc.social
mast.hpc.social
December 1, 2025 at 7:27 PM
I wrote up my notes from #SC25. Have a look: https://blog.glennklockwood.com/2025/12/sc25-recap.html
I’ll keep picking away at the editing, but would love to hear more from others about what stood out to them. I wasn’t at the conference itself as much this years as in the past, so I know I […]
I’ll keep picking away at the editing, but would love to hear more from others about what stood out to them. I wasn’t at the conference itself as much this years as in the past, so I know I […]
Mastodon finally appears to support quote-reposts. Better late than never?
November 30, 2025 at 5:26 PM
Mastodon finally appears to support quote-reposts. Better late than never?
I defended my doctoral dissertation thirteen years ago this month, and the only question I got from my entire committee was “why doesn’t the water fall out of jello?”
I still think about that.
I still think about that.
November 27, 2025 at 5:03 PM
I defended my doctoral dissertation thirteen years ago this month, and the only question I got from my entire committee was “why doesn’t the water fall out of jello?”
I still think about that.
I still think about that.
It was tradition at NERSC for the director to give everyone a half-day off on the Wednesday before Thanksgiving. By comparison, VAST has no company holidays, so technically, nobody gets Thanksgiving off (much less the half day before it!)
November 26, 2025 at 9:30 PM
It was tradition at NERSC for the director to give everyone a half-day off on the Wednesday before Thanksgiving. By comparison, VAST has no company holidays, so technically, nobody gets Thanksgiving off (much less the half day before it!)
US DOE is being directed to go all-in on AI: https://www.whitehouse.gov/presidential-actions/2025/11/launching-the-genesis-mission/
#hpc
#hpc
November 24, 2025 at 11:21 PM
US DOE is being directed to go all-in on AI: https://www.whitehouse.gov/presidential-actions/2025/11/launching-the-genesis-mission/
#hpc
#hpc
Reposted by Glenn K. Lockwood
Finally, #jupiter crossed the 1 ExaFLOP/s threshold today. The list is lying to you, though, it's not like it's 1000 PFLOP/s exactly, it's 1000.184 PFLOP/s; the rest got lost to rounding.
The 184 TFLOP/s are pretty much exactly the same as the previous #jsc […]
[Original post on mastodon.social]
The 184 TFLOP/s are pretty much exactly the same as the previous #jsc […]
[Original post on mastodon.social]
November 17, 2025 at 8:24 PM
Finally, #jupiter crossed the 1 ExaFLOP/s threshold today. The list is lying to you, though, it's not like it's 1000 PFLOP/s exactly, it's 1000.184 PFLOP/s; the rest got lost to rounding.
The 184 TFLOP/s are pretty much exactly the same as the previous #jsc […]
[Original post on mastodon.social]
The 184 TFLOP/s are pretty much exactly the same as the previous #jsc […]
[Original post on mastodon.social]
Reposted by Glenn K. Lockwood
November 20, 2025 at 5:42 PM
Andreas Dilger is now working for The Lustre Collective (https://thelustrecollective.com) after leaving DDN. I am glad to see his leadership continue to drive Lustre into the future. Say what you will about it, Lustre is the standard to which every other #hpc file system is compared.
#sc25
#sc25
November 18, 2025 at 11:51 PM
Andreas Dilger is now working for The Lustre Collective (https://thelustrecollective.com) after leaving DDN. I am glad to see his leadership continue to drive Lustre into the future. Say what you will about it, Lustre is the standard to which every other #hpc file system is compared.
#sc25
#sc25
When I spent a Thanksgiving week after SC writing the non-MPI layer for Darshan years ago, I thought to myself “surely this work will make me famous!”
I guess my ship finally came in at the PDSW keynote by Rob Ross.
#sc25
I guess my ship finally came in at the PDSW keynote by Rob Ross.
#sc25
November 17, 2025 at 3:27 PM
When I spent a Thanksgiving week after SC writing the non-MPI layer for Darshan years ago, I thought to myself “surely this work will make me famous!”
I guess my ship finally came in at the PDSW keynote by Rob Ross.
#sc25
I guess my ship finally came in at the PDSW keynote by Rob Ross.
#sc25
Apparently I was the first DAOS user to complain about having to refer to DAOS containers by UUIDs, so they added container labels. Don’t know if this is completely true, but I remember voicing this and will accept the credit if Mohamad is willing to give it to me 🙂
(Learned this at my own […]
(Learned this at my own […]
Original post on mast.hpc.social
mast.hpc.social
November 16, 2025 at 4:43 PM
Apparently I was the first DAOS user to complain about having to refer to DAOS containers by UUIDs, so they added container labels. Don’t know if this is completely true, but I remember voicing this and will accept the credit if Mohamad is willing to give it to me 🙂
(Learned this at my own […]
(Learned this at my own […]
New SC record: ran into a colleague within 2 minutes of walking into the airport terminal from the curb. Been catching up nonstop straight through takeoff. Conference starts earlier and earlier every year.
November 15, 2025 at 6:27 PM
New SC record: ran into a colleague within 2 minutes of walking into the airport terminal from the curb. Been catching up nonstop straight through takeoff. Conference starts earlier and earlier every year.
Chatting with a pal reminded me of a fun pre-SC activity: looking back at old conference takes that aged like milk. Remember this one?
#hpc #zettascale #hedoesntworkthereanymore
#hpc #zettascale #hedoesntworkthereanymore
November 14, 2025 at 10:40 PM
Chatting with a pal reminded me of a fun pre-SC activity: looking back at old conference takes that aged like milk. Remember this one?
#hpc #zettascale #hedoesntworkthereanymore
#hpc #zettascale #hedoesntworkthereanymore
November 14, 2025 at 8:22 PM
VAST and CoreWeave just announced a >$1.1 billion partnership to deliver #ai data services. Mind you, that's a billion in services, not GPUs. Though I can't claim any credit, I'm proud to work for a company that's earned this level of trust from a partner […]
Original post on mast.hpc.social
mast.hpc.social
November 7, 2025 at 12:13 AM
VAST and CoreWeave just announced a >$1.1 billion partnership to deliver #ai data services. Mind you, that's a billion in services, not GPUs. Though I can't claim any credit, I'm proud to work for a company that's earned this level of trust from a partner […]
SC25 will be my 12th SC (10th in-person). I've attended and presented on behalf of SDSC, NERSC, Microsoft before, but I've got to say: this year has been the most work and most stress I've ever had around the conference.
November 5, 2025 at 7:23 PM
SC25 will be my 12th SC (10th in-person). I've attended and presented on behalf of SDSC, NERSC, Microsoft before, but I've got to say: this year has been the most work and most stress I've ever had around the conference.
Google recently posted a promo for using their managed #lustre service to accelerate inferencing via KV caching. Raises questions:
1. What ever happened to Google Managed #daos (ParallelStore)? It performs better than Lustre.
2. Does Gemini use this? Unlikely. See […]
1. What ever happened to Google Managed #daos (ParallelStore)? It performs better than Lustre.
2. Does Gemini use this? Unlikely. See […]
Original post on mast.hpc.social
mast.hpc.social
November 4, 2025 at 4:41 PM
This is like showing up with a new boyfriend the week after the divorce. At least Microsoft is still getting those alimony payments.
https://www.aboutamazon.com/news/aws/aws-open-ai-workloads-compute-infrastructure
https://www.aboutamazon.com/news/aws/aws-open-ai-workloads-compute-infrastructure
November 3, 2025 at 4:11 PM
This is like showing up with a new boyfriend the week after the divorce. At least Microsoft is still getting those alimony payments.
https://www.aboutamazon.com/news/aws/aws-open-ai-workloads-compute-infrastructure
https://www.aboutamazon.com/news/aws/aws-open-ai-workloads-compute-infrastructure
NVIDIA, Oracle, and US DOE are named in the headline. Argonne is not. I don’t think this is an Argonne system.
https://nvidianews.nvidia.com/news/nvidia-oracle-us-department-of-energy-ai-supercomputer-scientific-discovery
https://nvidianews.nvidia.com/news/nvidia-oracle-us-department-of-energy-ai-supercomputer-scientific-discovery
October 30, 2025 at 3:33 PM
NVIDIA, Oracle, and US DOE are named in the headline. Argonne is not. I don’t think this is an Argonne system.
https://nvidianews.nvidia.com/news/nvidia-oracle-us-department-of-energy-ai-supercomputer-scientific-discovery
https://nvidianews.nvidia.com/news/nvidia-oracle-us-department-of-energy-ai-supercomputer-scientific-discovery