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Viewing profile — davidmr

davidmr

HN member
Joined
Sun, Apr 01, 2012, 6:24 AM UTC
HN karma
2,327
Public activity
356 items

About davidmr

David Ressman hpc, linux, and all things i/o nerd davidr@ressman.org / https://blog.ressman.org

Recent public activity

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    Comment #48712079

    I’ve worked on several systems that had enough flop/s to make it in the top 5-10, but for which we never submitted benchmarks. Sometimes their backend network layout technically wo…

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    Comment #47193232

    Upton Sinclair: “It is difficult to get a man to understand something, when his salary depends on his not understanding it”

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    Comment #45148541

    You still need to traverse physical segments in the wireless path: think receiving dish to the next transmitting dish, the end of the path to get from the trading systems onto the …

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    Comment #45148482

    > I'm sure some HFT traders are going to make an absolute fortune, but I doubt it'll have a huge impact for most other people. They’ve been using hollow core fiber (and funding res…

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    Comment #41803970

    > But what about Jump Capital? They have a crypto division that also does market making. The difference here is there are given a large chunk of tokens to market make with, as they…

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    Comment #41609404

    I think it’s a way of keeping the museum’s single most popular piece of art on display whilst working it. I think most museums would remove it for a while, but so many people come …

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    Comment #40913938

    Same. That sounds like a way to make that relationship between front office and back office as toxic and unproductive as possible.

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    Comment #40354588

    Or have them set up in a way that makes them hard to run full-system benchmarks on. I can think of a couple of financial firms that have clusters that would rate on the Top 10, but…

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    Comment #39522351

    Do you have issues with other rollerball pens? I’m also left-handed, and really struggle with them (especially the G2). My issues seem to be that when I’m pushing the point across …

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    Comment #38814678

    > In your experience, has this led to more careful hiring? Not in my (albeit limited) experience in the Netherlands. What I’ve seen it lead to is people hired initially into tempor…

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    Comment #38325060

    In the financial industry, you don’t get your bonus when you’re on garden leave. This is usually the majority of your pay, so while it’s definitely nice to be paid to do nothing (I…

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    Comment #37625551

    Or, you know, $5 worth of spray paint.

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    Comment #35804197

    > does JWST ever look at Earth? Sadly not. They went through an enormous amount of effort to keep it from having to look anywhere near Earth. Here’s what it would see if it could, …

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    Comment #35113743

    Do you think that encouraging a run on a bank is truly the responsible thing to do today?

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    Comment #34746533

    It turns out that high altitude balloons don’t pop when you put small holes in them: https://apnews.com/article/268893fddde785d029d5a51b136951eb

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    Comment #33127309

    I’m not sure I understand what you mean. I’ve run HPC clusters for a long time now, and node failures are just a fact of life. If 3 or 4 nodes of your 500 node cluster are down for…