gnufx

28 ms·

361.
by gnufx 5y ago
You might consider that backwards; John Levine, comp.compilers moderator, referred to C as a Fortran-like language.
362.
by gnufx 5y ago
Now for a version for "professional idiot" Les Barker's Shipping Forecast variations. As well as video of Les reciting it, you can find a version read by Brian Perkins in his normal delivery. Edit: The Perkins version is vid
363.
by gnufx 5y ago
Perhaps https://tug.org/svn/texlive/trunk/Build/source/texk/dvipsk/a... has value at the Bank of Sans Serriffe.
364.
by gnufx 5y ago
Does LIKWID actually do such high resolution sampling? (I'm pretty sure it doesn't do the tracing, anyway.) I've not used it seriously, and it seems to be a collection of things I can do with other tools, though I may mis-j
365.
by gnufx 5y ago
This says post -skylake, but both my SKX workstation and i5-6200U laptop have 1 in /sys/bus/event_source/devices/intel_pt/caps/psb_cyc which seems to be the condition, though I haven't tried to use i
366.
by gnufx 5y ago
Concerning Zmacs completion allegedly being much better, GNU Emacs would complete M-x i-d-m to insert-departure-message, but there are three other possibilities in my current session.
367.
by gnufx 5y ago
One of the problems with the systems seems to be IBM support, at least for people with Sierra/Summit-like nodes who are averse to trying to talk to Livermore and Oak Ridge. That includes dropping support for what seemed to be the majo
368.
by gnufx 5y ago
I counted other big endian processors (probably looking at GCC support) a while ago, but I don't remember what they were, and probably only embedded processors.
369.
by gnufx 5y ago
I don't know what you want of the VSX, but if you want vectorized code, what do you expect to gain over letting the compiler do it on your C? If you want an example, there's the kernels in OpnBLAS and FFTW (and BLIS, but that see
370.
by gnufx 5y ago
I don't manage the system I work on, so I don't see OpenBMC, but "a number of rough edges" sounds a lot better than the proprietary BMCs it's been my misfortune to use, which appear basically to be unsupported. As f
371.
by gnufx 5y ago
It's so small that they haven't even been able to afford their own TV channel for many years, let alone a paleontology department, so can be excused for not knowing that ichthyosaurs weren't dinosaurs. https://en.
372.
by gnufx 5y ago
I wasn't sure https://www.manchester.ac.uk/discover/news/jurassic-giant--t... was interesting enough to post, but it mentions "an exclusive" for Digging for Britain .
373.
by gnufx 5y ago
I thought in the past was at issue. Anyway if you mean "bang for money", GCC is usually zero money, and is more reliable in my experience of research computing support. I've had long experience measuring its output. Fairly
374.
by gnufx 5y ago
I agree it's difficult. Do people ever just turn off the AVX512 in their BLAS, FFT, etc. because of throttling? I've never seen that, but then I usually don't see people measure anything usefully, if they even know the effe
375.
by gnufx 5y ago
OK, no, I measured level 3 BLAS, and it sounded like a blanket dismissal of OpenBLAS. I'm surprised at it falling apart at all, but I haven't considered its LAPACK much and I value understanding from measurement. The set of R LA
376.
by gnufx 5y ago
That may depend on what you mean by "best". GNU Fortran has always been portable and generally decently competitive with proprietary ones speed-wise over the years and architectures. Also often more reliable. I wish it got prop
377.
by gnufx 5y ago
Well, C plus assembler, or maybe non-standard machine-specific intrinsics, for the ones I know. They at least seem to need control over prefetching.
378.
by gnufx 5y ago
The question was whether the comparison was against OpenBLAS built with recursive LAPACK routines (not the default, I've now checked). I don't know whether that would use the same algorithm. I don't see great attraction in &
379.
by gnufx 5y ago
Is the recursive comparison against OpenBLAS using ReLAPACK or the normal(?) one? I don't remember the story on building with that or know the different algorithms. Does Julia not use OpenBLAS at all now?
380.
by gnufx 5y ago
What high performance BLAS do you have written in Fortran? I don't know of one (though I think I could write one with decent performance on simple targets). It seems the rule that this will come up whenever Fortran is pushed, though
381.
by gnufx 5y ago
As ever, it depends, probably on whether your code is dominated by matrix-matrix linear algebra. BLIS DGEMM on my SKX workstation runs at ~88GF, or ~48 if I restrict it to using the haswell configuration (somewhat different on a typical co
382.
by gnufx 5y ago
> HPC applications AVX-512 is rarely used Your applications don't do linear algebra or FFT? AVX-512 is overrated for HPC generally, but it's surely going to be used by an optimized BLAS (unless there's only one FMA unit p
383.
by gnufx 5y ago
I don't see how "poorly parallelized" is relevant compared with, say, a decent OpenMP BLAS which is likely to benefit from any reduced power consumption that allows a faster clock. In general on compute nodes it's worth
384.
by gnufx 5y ago
I'm not sure how the networking works as-is, but OpenNebula (unrelated to Nebula) might give you that sort of thing.
385.
by gnufx 5y ago
Around the time it was released I tried to interest people in Kuhn's https://www.cl.cam.ac.uk/~mgk25/otpw.html for those travelling and wanting SSH access to the site from potentially-dodgy systems. Still, withou
386.
by gnufx 5y ago
I'm baffled why organizations don't use Kerberos, especially when they already have it (Active Directory).
387.
by gnufx 5y ago
In contrast, her son Valentin actually was a nuclear physicist, though not a terribly good one as I remember. I ill-advisedly, went to a summer school he organized in Romania and, with someone I met off the plane, was given a bad time gett
388.
by gnufx 5y ago
I found https://f-droid.org/en/packages/net.scintill.duotp and https://github.com/simonseo/nyuad-spammer/blob/master/spamme... only after extracting the secret from a throwaway
389.
by gnufx 5y ago
Does QNX' GUI still exist as from the famed single floppy that booted a networked GUI desktop? I don't remember ever trying it, and don't know what it was like.
390.
by gnufx 5y ago
Assuming this was a "scratch" HPC filesystem, as I'd guess, "scratch" is used advisedly -- users should be prepared to lose anything on it, not that it should happen with finger trouble. However, if I understand co

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