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qdot_me

HN member
Joined
Wed, Jul 10, 2019, 6:56 AM UTC
HN karma
149
Public activity
8 items

About qdot_me

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Recent public activity

  1. comment
    Comment #20403527

    To a limited extent. The accelerated graphics on ARM (and cell phones) has always been a system integrator problem. Until very recently, they were not user customizable - which mea…

  2. comment
    Comment #20400166

    That’s actually not the case. Historically, low amounts of RAM and IO were the bottlenecks, we’re talking quad-core arm-v8 with a pretty beefy vector gpu/coprocessor.

  3. comment
    Comment #20399982

    True. And with RPi4 having a 1000baseT, it’s not as painful as it seems. Perhaps even the driver can be coaxed into some form of DMA and MPI that is a bit lower latency than IP sta…

  4. comment
    Comment #20399827

    It’s all, cough, implementation dependent. You can run two VideoBIOS implementations, and chances are only one will install an int10h handler, but both will set up the registers an…

  5. comment
    Comment #20399788

    Yup. The daughterboard is on my mind. Likely flex-PCB and that’s gonna take a week or two to respin. Hence I’m collecting ideas for various daughtercards I could cram in a panel be…

  6. comment
    Comment #20399759

    There are two ways of doing clusters - one is a message passing paradigm, which you can do over Ethernet (to an extent - I’d still take USB3 for 4x the bandwidth) - and the other i…

  7. comment
    Comment #20399750

    This might even allow some level of memory mapping in all directions. Unfortunately PCIe switches are not very hackable as such, but maybe I can spin a board for this purpose... af…

  8. comment
    Comment #20399740

    Hack’s creator here - it’s on my list of things to try. GPUs are notoriously hard to get to work on non-intel, having tried to get a few up on Alpha and Itaniums in the past. Video…