Adam Ryanson
@adamryanson.bsky.social
InfoSec geek and lifelong learner/hacker. Principal Engineer at ORNL. I hack supercomputers for fun and profit. Posts are my own. #hacktheplanet, #hpc, #crocksandsocks, #openscience FTW!
github.com/rmadamson
@weezel.hachyderm.io
github.com/rmadamson
@weezel.hachyderm.io
The DoE booth is fully assembled!
November 17, 2025 at 10:14 PM
The DoE booth is fully assembled!
Did you attend the #hpcsyspros workshop this morning?
November 16, 2025 at 6:18 PM
Did you attend the #hpcsyspros workshop this morning?
November 16, 2025 at 6:12 PM
@kincl.dev sent me this today. What has science done… jackhopkins.github.io/factorio-lea...
Factorio Learning Environment
jackhopkins.github.io
March 11, 2025 at 11:58 PM
@kincl.dev sent me this today. What has science done… jackhopkins.github.io/factorio-lea...
Fun thing of the moment: Kolmogorov Complexity! I came across a great, accessible write up today and wanted to share. Does anyone else use K-complexity or measures of entropy in their work?
theorangeduck.com/page/machine...
theorangeduck.com/page/machine...
Machine Learning, Kolmogorov Complexity, and Squishy Bunnies
Computer Science, Machine Learning, Programming, Art, Mathematics, Philosophy, and Short Fiction
theorangeduck.com
February 26, 2025 at 10:00 PM
Fun thing of the moment: Kolmogorov Complexity! I came across a great, accessible write up today and wanted to share. Does anyone else use K-complexity or measures of entropy in their work?
theorangeduck.com/page/machine...
theorangeduck.com/page/machine...
You can also forward your ssh-agent through the ssh connections that you make so that you don’t need to copy your private key off of your laptop
February 26, 2025 at 1:39 AM
You can also forward your ssh-agent through the ssh connections that you make so that you don’t need to copy your private key off of your laptop
“Derek, don’t be such a pahole”
February 25, 2025 at 1:05 PM
“Derek, don’t be such a pahole”
Does anyone else agree that certain Linux commands make great insults?
February 25, 2025 at 1:03 PM
Does anyone else agree that certain Linux commands make great insults?
Take a look at ssh-agent. You do need to enter your passphrase one time to ‘unlock’ your ssh key but then future connections are password less.
February 25, 2025 at 1:01 PM
Take a look at ssh-agent. You do need to enter your passphrase one time to ‘unlock’ your ssh key but then future connections are password less.
Please please please set passphrases on private ssh keys. Any administrator of a system that your ssh key resides on can use your private key.
February 25, 2025 at 3:43 AM
Please please please set passphrases on private ssh keys. Any administrator of a system that your ssh key resides on can use your private key.
Reposted by Adam Ryanson
Congratulations, @tgamblin.bsky.social!
LLNL’s Todd Gamblin named an HPC-AI Vanguard by insideHPC
insidehpc.com/2025/02/vang...
#HPC #AI
LLNL’s Todd Gamblin named an HPC-AI Vanguard by insideHPC
insidehpc.com/2025/02/vang...
#HPC #AI
Vanguards of HPC-AI: Spack Builder Todd Gamblin of LLNL on the Why’s and How’s of Change in HPC - High-Performance Computing News Analysis | insideHPC
In our continuing series on current and future leaders of HPC-AI, Lawrence Livermore National Lab's Todd Gamblin has a well-deserved reputation in the HPC software community as a passionate engineer w...
insidehpc.com
February 20, 2025 at 7:38 PM
Congratulations, @tgamblin.bsky.social!
LLNL’s Todd Gamblin named an HPC-AI Vanguard by insideHPC
insidehpc.com/2025/02/vang...
#HPC #AI
LLNL’s Todd Gamblin named an HPC-AI Vanguard by insideHPC
insidehpc.com/2025/02/vang...
#HPC #AI
Gotcha, thanks for the explanation
February 20, 2025 at 10:15 PM
Gotcha, thanks for the explanation
Forgive me for not knowing what CSP stands for, could you help me out?
February 20, 2025 at 8:51 PM
Forgive me for not knowing what CSP stands for, could you help me out?
Reposted by Adam Ryanson
GE Aerospace is now one of the largest users of U.S. DOE #exascale #supercomputers, a breakthrough capability helping the company develop new jet engine technologies for commercial aviation
www.geaerospace.com/news/press-r...
#HPC
www.geaerospace.com/news/press-r...
#HPC
GE Aerospace now one of the largest users of U.S. Department of Energy exascale supercomputers | GE Aerospace News
Supports development of revolutionary technologies for more efficient flight• Successfully competed for more than 3 million supercomputing hours since 2022• Leads to faster technology developmen...
www.geaerospace.com
February 13, 2025 at 4:24 PM
GE Aerospace is now one of the largest users of U.S. DOE #exascale #supercomputers, a breakthrough capability helping the company develop new jet engine technologies for commercial aviation
www.geaerospace.com/news/press-r...
#HPC
www.geaerospace.com/news/press-r...
#HPC
Reposted by Adam Ryanson
Axel Huebl has received the NERSC Early Career Award for Innovative Use of #HPC
Congratulations, @axccl.bsky.social!
atap.lbl.gov/news/huebl-r...
via @nersc.bsky.social
Congratulations, @axccl.bsky.social!
atap.lbl.gov/news/huebl-r...
via @nersc.bsky.social
February 13, 2025 at 5:32 AM
Axel Huebl has received the NERSC Early Career Award for Innovative Use of #HPC
Congratulations, @axccl.bsky.social!
atap.lbl.gov/news/huebl-r...
via @nersc.bsky.social
Congratulations, @axccl.bsky.social!
atap.lbl.gov/news/huebl-r...
via @nersc.bsky.social
Practically, I’ve used a shared IB network to pivot between systems that I did not have logical access to, but that did have a shared Lustre filesystem.
February 13, 2025 at 1:04 PM
Practically, I’ve used a shared IB network to pivot between systems that I did not have logical access to, but that did have a shared Lustre filesystem.
Solid question. I consider IB to be a layer 2 network without many of the segmentation tools that IP routing gets you. Once you set up RDMA, you also lose most abilities to monitor and control traffic over that channel
February 13, 2025 at 1:01 PM
Solid question. I consider IB to be a layer 2 network without many of the segmentation tools that IP routing gets you. Once you set up RDMA, you also lose most abilities to monitor and control traffic over that channel
Reposted by Adam Ryanson
No matter how good you think you are, you gotta be coachable if you want to get better.
January 2, 2025 at 9:51 PM
No matter how good you think you are, you gotta be coachable if you want to get better.
How about a fun #HPC #CyberSecurity relevant discussion? We came out with some guidance mid 2024 for #riskmanagement folks that I encourage everyone to read. csrc.nist.gov/pubs/sp/800/...
NIST Special Publication (SP) 800-223, High-Performance Computing Security: Architecture, Threat Analysis, and Security Posture
Security is essential component of high-performance computing (HPC). HPC systems often differ based on the evolution of their system designs, the applications they run, and the missions they support. ...
csrc.nist.gov
February 11, 2025 at 9:35 PM
How about a fun #HPC #CyberSecurity relevant discussion? We came out with some guidance mid 2024 for #riskmanagement folks that I encourage everyone to read. csrc.nist.gov/pubs/sp/800/...
Oh that’s neat, I didn’t realize that. I’m assuming that there is negligible hypervisor overhead?
February 11, 2025 at 3:04 PM
Oh that’s neat, I didn’t realize that. I’m assuming that there is negligible hypervisor overhead?
Yeah. I hear that, especially for scientific codes. For things like drivers and system services I think memory safety is worth the hassle.
February 11, 2025 at 1:10 PM
Yeah. I hear that, especially for scientific codes. For things like drivers and system services I think memory safety is worth the hassle.