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CaliforniaKarl

10,031 karma · joined March 4, 2016

Hello! I work at Stanford University, at the Stanford Research Computing Center, as an HPC sysadmin.

I have a blog: https://karl.kornel.us/

My HN handle is also my Twitter handle.

My work email is a!k!kornel@stanford,edu (with ! removed and , corrected).

submissionscomments
CaliforniaKarl··on Doge Is Planning a Hackathon at the IRS. It Wants Easier Access to Taxpayer Data
You can find most other residential candidate returns at https://www.taxnotes.com/presidential-tax-returns

The current Vice-President hasn’t released any. The former President only has some posted due to successful subpoena.

CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
Best I can answer is this: https://college.harvard.edu/admissions/why-harvard/affordabi... (the page I referenced) has a link to https://college.harvard.edu/financial-aid/net-price-calculat..., and that page asks for both the size of the family, and the number of children in college. From that, I infer that they take the number of kids into account in some way.
CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
> I read this as Harvard being more stringent on admitting more students whose families make enough to pay their children’s tuition.

From https://college.harvard.edu/admissions/why-harvard/affordabi...:

> Most importantly, your financial situation will not affect your chances of admission to Harvard College.

> If you think I’m wrong, understand that there will be limited funding available for this program.

First of all, be aware that this program is not new. Until now the cutoff was $150,000, not $200,000. See https://web.archive.org/web/20240229232535/https://college.h...

To the question "How does Harvard afford raising the threshold by $50,000?", I think the plan is to use endowment investment returns to cover the cost.

CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
> At an industry standard 4% drawdown, they could provide $88,000 of “aid” to every student indefinitely.

Just to confirm: Are you saying that all endowment proceeds should go towards student aid? What would you suggest be done to restricted-purpose investments?

CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
> People are going out of their way to extol Harvard's supposed largesse, and how hardly anyone pays sticker. First, 45% do pay sticker according to the article.

No. Do not make assumptions like that.

The source material is easy to find. It's https://college.harvard.edu/admissions/why-harvard/affordabi...

From the source material:

> Financial aid will be available to many students from families with incomes above $200,000, depending on individual circumstances.

The cost of an American higher education is something worth discussing, but I think starting the discussion with inaccurate information is problematic.

CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
Since you are not clear, it's worth noting that the other Ivys do have free tuition at some level. For Yale it's $75k, per https://admissions.yale.edu/affordability-details. For Stanford it's $150k, per https://news.stanford.edu/stories/2025/02/stanford-sets-2025...
CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
Please do not assume that a single article contains the full truth of a situation. People are empowered to do their own research. Curiosity is better than cynicism.
CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
The source material (https://college.harvard.edu/admissions/why-harvard/affordabi...) answers this:

> Once you're admitted, the Financial Aid Committee will assess your family’s financial need and offer you an award to meet it. We determine need based on your family’s income, assets, and overall financial circumstances. … We know that each student's financial circumstances are unique. Your financial aid officer will work with you all four years to understand your needs and take the stress out of affording Harvard.

CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
Thank you for this. Unfortunately (IMO) many people seem to have a very short memory, or lack research skills, and I think this leads people to a cynical response.
CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
This is one of the reasons why—although university admissions and financial aid has lots of paperwork—there is still a major human element.

This is explicitly mentioned on the FAFSA's web site: https://studentaid.gov/help/reporting-special-financial-circ...

CaliforniaKarl··on Harvard says tuition will be free for families making $200K or less
The source material (https://college.harvard.edu/admissions/why-harvard/affordabi...) shows that's not true.
CaliforniaKarl··on Tj-actions/changed-files GitHub Action Compromised – used by over 23K repos
In your GitHub Actions YAML, instead of referencing a specific tag, you can reference a specific commit. So, instead of …

    uses: actions/checkout@v4
… you can use …

    uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
CaliforniaKarl··on TrolleyBuses vs. Battery Electric Buses (2020) [video]
The video's title is "Why TrolleyBuses are vastly Superior to Battery Electric Buses!", which I have attempted to de-editorialize.
CaliforniaKarl··on Explore Sutro Tower
That's not unusual! BART and, I believe, Caltrain also use them for vegetation management on their rights-of-way.
CaliforniaKarl··on Warewulf is a stateless and diskless container OS provisioning system
Its main thing is taking a system that’s just powered on, and giving it an operating system. Said system can then run HPC jobs (or shell sessions, or web sites, or data-transfer); until it’s rebooted, and the cycle begins again.

I don’t know how well it would work in IoT: The device needs to PXE-boot, which requires support from the DHCP server and the hardware boot environment (UEFI).

CaliforniaKarl··on Mozilla site down due to "overdue hosting payments"
discourse.mozilla.org is an alias for mozilla.hosted-by-discourse.com.
CaliforniaKarl··on Algorithms are breaking how we think [video]
I was considering posting this here, but I worry that it will trigger most of the folks who frequent this site, leading to more flamewars than valuable discussion.
CaliforniaKarl··on DigiKey's Tariff Resources
> we don’t have the know how, labor to do it to begin with.

That, I believe, is one of the reasons why the H-series and E-series exist in the United States, along with the L visa. It gives you the opportunity to bring foreigners into the United States, either for a limited (but finitely-extendable) period of time, or permanently.

You can argue that the current forms of those visas do not work, but that is not my point: My point is that the above reason is why the visas exist.

To bring my point back around to tariffs: I think making the above-mentioned visas harder to get goes against the purpose of the tariffs. If you want manufacturing etc. brought back here, then make it easy (or easier) to get the knowledgeable folks who you need to train the folks who will do the manufacturing here.

CaliforniaKarl··on Paxlovid: You'd have expected more
Research "Paxlovid rebound". It sounds like that is what hit you.
CaliforniaKarl··on The San Francisco stadium that fog killed
Except Mark Twain never said that

https://www.snopes.com/fact-check/and-never-the-twain-shall-...

CaliforniaKarl··on How Medical Research Cuts Would Hit Colleges and Hospitals in Every State
I'd like to reframe your question just a bit.

Instead of "At the current overhead spending rates, has the research been effective enough?", I think the question should be "At the current indirect rates, has the research been supported enough?". My proposed reframing is because the indirect costs are meant to cover the costs of supporting the research.

A side node: If you're interested in gauging the effect of a particular NIH grant, the NIH RePORTER site is your friend: Any publication that is grant-supported will mention this in the acknowledgments. For example, our SGI UV300 (360 CPU cores, 10TB RAM, 20TB PCIe flash, and 4 NVIVIA P100s) was funded thanks to NIH grant S10 OD023452. If you search that ID in RePORTER, you'll get https://reporter.nih.gov/project-details/9273288: Towards the bottom of the page, you'll find a list of publications (that the NIH was able to find) that used the UV300. With funding in FY17, the machine's past end-of-life and the funding's ended (it was one-time funding, with a 5-year (I think) lifespan), but publications are still coming in.

One thing that's worth noting: The grant had no indirect costs. The money went straight to SGI (they were acquired by Hewlett Packard Enterprise in November 2016, and were still being absorbed). The UV300 is not a "set it and forget it" machine. It's not 'cattle'. So, where did the money come from to run the UV300, and answer questions of researchers who (for example) have never heard of "NUMA"?

The money to pay the supporting folks (sysadmins, etc.) came, indirectly, from the researchers: The S10 grant was structured such that the majority of time on the UV300 was for folks doing work under NIH grants. The indirect portion of those NIH grants is what helped fund the sysadmins (like me) who kept (and still keep) the UV300 up and running.

I think grant-funded research is supported enough if…

1. The facilities researchers use (buildings, equipment, network, compute, etc.) are available enough (they are online for some % of the year)

2. Researchers are able to get technical assistance (for the buildings, equipment, network, compute, etc. that they use) in a reasonable amount of time.

What values should be used for "available enough" and "reasonable amount of time"? Honestly, I'm not sure, and since I've got 'skin in the game' my guesses would probably be too generous towards me. Plus, Goodhart's law applies here.

CaliforniaKarl··on Bank CEO: Retract your debanking piece? Me: No
Maybe not, but Nathan McCauley (the CEO of Anchorage Digital) did appear in front of the US Senate Committee on Banking, Housing, and Urban Affairs, on the topic of "Investigating the Real Impacts of Debanking in America"

https://www.banking.senate.gov/hearings/investigating-the-re...

So, we may not be talking Jamie Dimon, but that does not mean this request for retraction should be ignored.

CaliforniaKarl··on A brief history of code signing at Mozilla
It's not using GitHub Actions, but it is possible to use a YubiKey 5 FIPS model as an HSM for the purpose of getting a code-signing certificate.

https://support.sectigo.com/IS_KnowledgeDetailPage?Id=kA03l0... is an example explaining how to get both a CSR and an attestation certificate from a YubiKey 5 FIPS, on Windows.

https://support.yubico.com/hc/en-us/articles/360016614840-Co... explains how to use Windows' signtool with a Yubikey.

Using a YubiKey does require that you provide your PIN every time you want to do a signature, which limits how much you can automate things. A YubiHSM would remove that requirement, and might be able to work with a self-hosted GitHub Actions Runner, but it's more expensive, and you'd want confirmation from your CA (Sectigo, for example) that a YubiHSM is OK.

CaliforniaKarl··on What's happening inside the NIH and NSF
> This was the way to secure funding was what the PI in our lab told me when I inquired about the glaring discrepancy.

I'm not saying that what your PI told you was wrong, but I will say that it would've been useful to get some additional information about why your PI decided that was the right thing to do. It might have been useful at some particular time or in some particular situation.

> EDIT: I left academia in 2013, maybe things have changed.

That's an important piece of information, as when I read your original post, "even in 2013" made me think that you were still in academia.

CaliforniaKarl··on Ask HN: Who is hiring? (February 2025)
Stanford Research Computing | Stanford, CA (next to Palo Alto) | Full-time | Two positions | HYBRID

Stanford Research Computing (https://srcc.stanford.edu) is a collaboration between University IT and the Vice Provost and Dean of Research. We operate HPC environments for researchers, we do one-time consultations on projects (from software and pipelines, to data management, to physical building design and fit-out), and we provide contract support for individual Labs, Departments, and Schools.

We have two open positions:

• GPU Cluster Sysadmin: With Marlowe—our 1SU NVIDIA DGX H100 SuperPOD with DDN Intelliflash and DDN NFS storage—launched, we have decided to hire an additional sysadmin! You'll be working with the latest AI/ML/Deep Learning/LLM software & frameworks, getting them to work in an HPC environment. You'll be keeping the environment up-to-date, and working with NVIDIA/DDN when there's trouble. You should also expect to interact with users & PIs a lot. More info: http://phxc1b.rfer.us/STANFORD8mESql (or, if you're very experienced in the field, go to http://phxc1b.rfer.us/STANFORDrWNSqm).

• Research Computing Systems Engineer: We run lots of different compute environments. Some of them have to deal with HIPAA data, which presents unique challenges, and so we are hiring an additional sysadmin! You should already have experience with Linux system administration; as well as the necessary networking, storage, and configuration management skills needed to bring up a compute environment. Ideally you will also have experience with job schedulers (SLURM, LSF, etc.) and the peculiarities of working with the requirements for managing data under HIPAA. More info: http://phxc1b.rfer.us/STANFORD7u6TAI

If you don't already live in the Bay Area, we provide a relocation incentive. Depending on where you live, we provide free transit passes. Unfortunately, if you drive, you will have to pay for parking for the days you're on-site. There is some on-call around the holidays. We get a 403(b) match, good healthcare, and 30+ days off per year (holidays + vacation). All Benefits are all publicly documented at https://cardinalatwork.stanford.edu/benefits-rewards.

If you have questions, feel free to reply here or email me (the info is in my profile)!

CaliforniaKarl··on Musk Says DOGE Halting Treasury Payments to US Contractors
https://archive.ph/vC301
CaliforniaKarl··on Sam Bankman-Fried's Parents Explore Seeking Trump Pardon for Son
https://archive.ph/OXEhv
CaliforniaKarl··on Libraries and Well-Being: A Case Study from The New York Public Library
> As an aside, are there university libraries one can join directly for a fee?

There are. Some are more open than others, but it generally comes down to "give $$, get access".

Here's Stanford's page, for example: https://library.stanford.edu/about-stanford-libraries/visit-...:

One thing worth noting, these accesses do not always include access to electronic resources. Access may only be available from computers that are in the library.

CaliforniaKarl··on Can foreigners live in Kofu, a small Japanese town? [video]
The original video title is "Can Foreigners ACTUALLY Live in this Small Japanese Town?".
CaliforniaKarl··on How to Install MicroPython on ESP32
Hello! FYI, it looks like your web server certificate has expired.
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