jedbrown

48 ms·

391.
by jedbrown 15y ago
It's common to use double letters (ii, jj, kk) as inner indices when writing tiled multi-dimensional array code. Regardless of whether you think that is a good convention, you should be preserving that convention if you are editing legacy c
392.
by jedbrown 15y ago
I almost exclusively use perl -pi -e COMMAND instead of sed for stream processing. I also use grep --perl-regexp in most cases. I need to remember Emacs and perl regex semantics; I'd rather not have more variants to remember.
393.
by jedbrown 15y ago
I go through security an average of about four times a month. I opt out any time I'm not in danger of missing a flight. Some airports are friendly and expedient about it, others (most recently, Austin) had me wait for about fifteen minutes
394.
by jedbrown 15y ago
Or paste this in your browser to fix it before printing. javascript:document.body.contentEditable ='true'; document.designMode ='on'; void 0
395.
by jedbrown 15y ago
The autoconf script checked into the repository assumes that I have aclocal-1.10, but I have aclocal-1.11, so I autoreconf -fi to fix it. (I recommend not checking this stuff into the repository.) Then the build fails because of -Werror=unu
396.
by jedbrown 15y ago
Neat resource, but I wouldn't call it a mathematical guide to FEM. More like practical tips for engineering use of FEM for structural mechanics.
397.
by jedbrown 15y ago
perhaps someone can come up with a store that allows a board of directors to leave a journal and setup shop easily? http://scholasticahq.com http://openrepub.org
398.
by jedbrown 15y ago
Note that this chip, when fitted with DDR3-1333, has a theoretical peak system bandwidth of 32 GB/s (achievable peak will be somewhat lower). This hash, running on a single core, claims to process 16.2 GB/s. There are 4 cores (8 threads) on
399.
by jedbrown 15y ago
The issue is whether it is feasible to engineer collisions.
400.
by jedbrown 15y ago
Look at revenue, not profit. The economy doesn't care how much the company profits, it cares how much the company is spending (on employees and other services).
401.
by jedbrown 15y ago
Remarkably, Hollywood bought Congress while being a remarkably small part of the economy, both in terms of revenue ( http://en.wikipedia.org/wiki/List_of_companies_by_revenue ) and jobs ( http://en.wikipedia.org/wiki/List_of_companies_by_em
402.
by jedbrown 15y ago
You might have skipped insurance in your list, but I don't think the parent meant $20k-30k as the yearly cost (because that much is rare), but as the initial purchase price (which is common when buying new).
403.
by jedbrown 15y ago
If it's the second, then market forces might eventually balance out and make hiring people an attractive choice again. It's definitely not going to balance out so that it becomes economical to hire people for today's low-skill jobs. At an
404.
by jedbrown 15y ago
What if the total contribution was capped? You could even add that he first $50 of everyone's taxes would be appropriated as that person chooses (Lessig's proposal).
405.
by jedbrown 15y ago
If bribery has to be covert, it can be investigated by the legal system. In its current form, bribery is essentially legal. Think about Lessig's suggestion. http://rootstrikers.org http://www.thedailyshow.com/watch/tue-december-13-2011/e
406.
by jedbrown 15y ago
It could be wise to fire Dodd just to allow the MPAA to continue making contributions without risking interpretation as a quid pro quo. From the Hobbs Act: "It is important to note, however, that it is irrelevant whether the public official
407.
by jedbrown 15y ago
It's great that this petition reached threshold in two days, but it would have been nice if it had less than two spelling errors in the title.
408.
by jedbrown 15y ago
A record of publishing in prestigious journals (many of which are run by the major publishers) is generally good for tenure review and grant proposals. Starting a new publication is challenging because you have to attract the best quality w
409.
by jedbrown 15y ago
Lessig's suggestion would significantly increase the amount of money available to politicians relative to now. The difference is that it would all come in small dollar amounts to make politicians accountable to constituents instead of the c
410.
by jedbrown 15y ago
I think that changing the campaign funding model to small dollar amounts would make a significant difference. See http://rootstrikers.org and Lessig's interview with Jon Stewart ( http://www.thedailyshow.com/watch/tue-december-13-2011/exc
411.
by jedbrown 15y ago
That is specific to CS. I have one foot in CS, but the other two feet are in applied mathematics and natural sciences where conferences are not especially attractive publications venues.
412.
by jedbrown 15y ago
Heh. Well the current threading models are much worse from the perspective of libraries and hierarchical memory. I work with some of the MPICH developers and members of the MPI Forum. Nobody is satisfied with the status quo, but we need a v
413.
by jedbrown 15y ago
I prefer the CS model in some ways, but there are issues. * The review process for conferences is necessarily compressed relative to journals. This usually lowers the quality of reviews and also limits paper length. * It is difficult to "gr
414.
by jedbrown 15y ago
Two problems: 1. Money is an extremely effective campaign tool, so effective that it is almost impossible for a candidate with no money to get elected, no matter how popular their views are. Since quite few constituents contribute money, an
415.
by jedbrown 15y ago
It depends what institution you are at and how much research funding you have. If you are a professor at a small teaching university (even in the US), a few publications per year in open access journals is the same cost as supporting a stud
416.
by jedbrown 15y ago
Counter-point: http://scienceinthesands.blogspot.com/2011/12/in-defense-of-...
417.
by jedbrown 15y ago
In practice, the non-determinism is important for efficiency. Consider computing a norm or dot product in parallel. You sum the owned part of the distributed vector, then use MPI_Allreduce() to get the result of the global sum (the parallel
418.
by jedbrown 15y ago
Well, we will . Just not only MPI (at least not without significant extensions).
419.
by jedbrown 15y ago
"Just as we learned to embrace languages without static type checking, and with the ability to shoot ourselves in the foot, we will need to embrace a style of programming without any synchronization whatsoever." This is dangerous misinfor
420.
by jedbrown 15y ago
That is hardly the first time someone has pointed this out. Schneier wrote about it in 2003, for example ( http://www.schneier.com/crypto-gram-0308.html#6 and in his book from that year), and again several times later (e.g. http://www.sch

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