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ljdursi

HN member
Joined
Tue, Apr 07, 2015, 5:03 PM UTC
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204
Public activity
10 items

About ljdursi

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Recent public activity

  1. comment
    Comment #9338042

    I agree with this, but it also sort of risks being a self-fulfilling prophesy; everyone uses MPI because everyone uses MPI, and no one uses Chapel yet because no one uses Chapel ye…

  2. comment
    Comment #9337921

    Chapel has been used for incompressible moving-grid fluid dynamics, so it's certainly feasible. For that problem the result was ~33% the lines of code of the MPI version. There is …

  3. comment
    Comment #9337271

    I agree that languages that rely on tracing GC seem like they're fundamentally at a disadvantage when it comes to pushing the envelope of single-node performance; the best article …

  4. comment
    Comment #9337252

    I think with GPGPU, the issue is a little different; it's local computation, so a bit orthogonal to distributed-memory coordination. But it is interesting to see how many higher-le…

  5. comment
    Comment #9337238

    "won't be the standard in 10 years, otherwise it will still be the standard in 10 years." -- nicely said.

  6. comment
    Comment #9336553

    Oh, sure. I don't think anyone should start rewriting old codes; but as new projects start, I think we have a lot more options out there than we did 10 years ago, and it's worth lo…

  7. comment
    Comment #9336532

    Thanks! I'm probably mischaracterizing Charm++ a bit, because I'm most familiar with it in particle context (OpenAtom, ChaNGa, NAMD). I guess it's probably particularly used in tha…

  8. comment
    Comment #9336493

    I think coarrays have a lot of promise; it's less ambitious than the single unified picture of a program that Chapel or UPC has, but maybe that's a feature, not a bug, for incremen…

  9. comment
    Comment #9336460

    Certainly Prof Hoefler has done a lot of work driving the design of updated remote-memory access for of MPI-3, and any further progress would be welcomed; but I don't think any mod…

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