kincl

6 เดือนที่ผ่านมาdiscuss

The country code GB in some of the tables should show the source economy being Great Britain right? Am I misunderstanding the table?

kincl

9 เดือนที่ผ่านมาdiscuss

Having done just a small to moderate amount of automation in CI/CD pipelines around GPG tools I know this pain. Back then I was waiting for https://sequoia-pgp.org/ which recently (Dec 2024) released its v1.0 of the sq CLI which seemed to have a lot of promise of fixing the strange and inconsistent ergonomics of using the gpg tools.

kincl

11 เดือนที่ผ่านมาdiscuss

The Asciinema clients have now gone from Python to Golang back to Python now to Rust

https://docs.asciinema.org/history/

https://blog.asciinema.org/post/and-now-for-something-comple...

kincl

2 ปีที่แล้วdiscuss

On this note I would check out the Universal Blue project[1] which uses a combination of technologies to implement an immutable OS desktop environment.

[1] https://universal-blue.org/

kincl

2 ปีที่แล้วdiscuss

Relevant awesome list on tunneling: https://github.com/anderspitman/awesome-tunneling

kincl

3 ปีที่แล้วdiscuss

If one of the main advantages is being able to suspend to disk why not just implement CRIU (Checkpoint/Restore In Userspace) in Kubernetes?

kincl

4 ปีที่แล้วdiscuss

Great thread! I noticed a bunch of the comments are from Sandia/LLNL/LANL all of which are mostly focused on the National Nuclear Security Administration side of the Department of Energy which is focused on the various aspects of maintaining the nuclear stockpile of the US.

I worked at Oak Ridge National Laboratory in High Performance Computing and did not work with anything directly nuclear at all. The HPC efforts of the DOE are under the Office of Science (separate and at the same level as the NNSA) which is focused on more wider scientific impact and application than just nuclear. The Office of Science has a number of program offices that focus on all different kinds of science from basic energy sciences/physics to biological/environmental and scientific computing (where HPC is funded in DOE).

I agree that the work/life balance is great and it is definitely a slower pace than what you would find in industry. The lab system is huge and there are plenty of opportunities but on the Office of Science side I like to break it down between what I think of as a research group and a user facility.

Working in a research group is much like academia, they mostly require a PhD and from what I could tell performance is judged on publication output. These folks also write grant proposals that come from DOE program offices for funding their own research. In some cases I have seen these groups employ non-PhDs to be computational scientists and write code.

The user facilities are long-running projects funded by the DOE at the labs to provide specific capabilities to researchers, sometimes just for DOE scientists but a number of them are open to scientific researchers all over the world. This is where I have the most experience where I worked at ORNL's National Center for Computational Sciences on the Oak Ridge Leadership Computing Facility (OLCF). These projects are generally well funded and have all kinds of interesting challenges to solve. For example, the OLCF has consistently deployed the number one supercomputers on the Top500 list and it offers those computational resources to anyone through their allocation program INCITE which supports many different computational modeling and simulation experiments. Other examples of user facilities at ORNL are the Spallation Neutron Source and the High Flux Isotope Reactor.

One thing I have noticed since moving from ORNL to industry is that the sense of shared purpose does not extend as far in the lab system as it does in company. What I mean is that with the small research group and with a user facility like the OLCF there is shared purpose with the people in those groups but it does not go much beyond that. A lab is generally made up of lots of different research groups and a few facilities but beyond the drive for "Science!" there is not a lot of shared purpose or collaboration at a macro level. The analogy I use is that a lab is a bunch of small dinghy boats that are all generally moving in a similar direction but a company is a single ship with a specific purpose driving it forward.

Overall I loved my experience at ORNL, I learned so much working with so many smart people and made friends that I will have for life.

kincl

4 ปีที่แล้วdiscuss

I just realized that OpenBSD unbound was likely named as a counter to ISC BIND. Similar to Sun Java and the Eclipse Foundation.

kincl

4 ปีที่แล้วdiscuss

Yeah I couldn’t access it either, Wayback archive: https://web.archive.org/web/20220403200715/https://9p.io/sys...

kincl

5 ปีที่แล้วdiscuss

I think KubeVirt fits better in an environment that is already running Kubernetes. We have found it useful for running some of our heavyweight CI jobs that have virtualization requirements because we can manage the VMs in the same way that we manage our containers.

In general though we have only used KubeVirt for ephemeral workloads.

kincl

7 ปีที่แล้วdiscuss

Yep, actually all of our user projects are unclassified at the OLCF.

kincl

7 ปีที่แล้วdiscuss

The call for proposals for INCITE (one of the programs we provide cycles for) is open for 2020 but this would be for Summit not Frontier this time around :)

http://www.doeleadershipcomputing.org/proposal/call-for-prop...

kincl

7 ปีที่แล้วdiscuss

Yep, we have battery-backed generators for UPS and a transfer switch at the 480-V feed that comes into the room but it is not enough to power the compute nodes. The UPS allows cluster management nodes and the parallel filesystem (which is a small cluster by itself) to ride through full outages and other PQE.

kincl

7 ปีที่แล้วdiscuss

GPUs help considerably here, taking a look at previous ORNL machines:

  Jaguar | 2.3 PF XT5 (CPU-only)      | 7 MW for HPL
  Titan  | 27 PF XK7 (1:1 CPU to GPU) | 8.2 MW
  Summit | 186 PF (2:6 CPU to GPU     | 8.8 MW

Overall, substantial changes in computing power and 10%-20% increase in power.

kincl

7 ปีที่แล้วdiscuss

As has been noted in other comments, we do not have a power station at ORNL. We buy power from TVA at about 5.5 cents per kW hour which in part is because of the locality of the lab to TVA power plants.

TVA recently completed a 210 MW substation on ORNL's campus to better serve our needs. We do not need to coordinate with them for large runs on the machines.

Submissions

First Look at Oak Ridge’s “Frontier” Exascaler

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