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Giuseppe Bilotta

@giuseppebilotta.fediscience.org.ap.brid.gy

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Researcher @ INGV-OE. Opinions my own. Bluesky users: if you wish to follow/interact with me, please follow @ap.brid.gy first or your interactions will not […] 🌉 bridged from ⁂ fediscience.org/@giuseppebilotta, follow @ap.brid.gy to interact

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 8h

The more I learn about #OpenACC the less I like it, and the less I understand why it's a thing in the first place. (No, I know why it's a thing; but really wish it wasn't.)

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 21h

I have just pushed an update to #clinfo with preliminary (untested) support for a bunch of QCOM extensions. If you have an #Adreno #Qualcomm #Snapdragon device with #OpenCL support, I would appreciate some #testing (and a sample output, especially if your device/driver version supports the […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 21h

I have just pushed an update to #clinfo with preliminary (untested) support for a bunch of QCOM extensions. If you have an #Adreno #Qualcomm #Snapdragon device with #OpenCL support, I would appreciate some #testing (and a sample output, especially if your device/driver version supports the […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 29/09/2026

From time to time I test (for fun, mostly) whether GPUSPH still builds in Termux. It's an interesting stress test because (1) it's the CPU backend, that we rarely use ourselves (2) it's on an ARM architecture (3) the performances are abysmal. Point (2) in particular has been very interesting in […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 29/09/2026

The #OpenCL on #Android saga continues. I updated my phone to the latest firmware: it had been nagging me for a while, and security-wise it's a generally a good idea anyway; plus, I was curious if the firmware update would bring with itself a driver update too for the GPU. And well, it did, but […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 27/09/2026

I've just pushed a couple of commits in #clinfo that introduce support for a couple of Imagination (#PowerVR I think?) extensions, although I don't have any device that supports it, so if any of my followers or extended network happen to have one, I'd be curious to see the output if they could […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 26/09/2026

I've been pondering about moving my #FLOSS projects off from GitHub. I'm slow in taking action, but since I've been working on #clinfo a lot these days, I'm thinking this would be a good opportunity to make a, shall we say, less slop-friendly hub the primary one (I plan on keeping the GH one […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 26/09/2026

I'm distracting myself from some obnoxious work & life stuff by going over bugs and feature requests for clinfo and looking into finalize #OpenCL 3.1 support (which from what I can see just makes some of the extensions obligatory, but doesn't actually introduce new device properties itself)

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 24/09/2026

YouTube force-classifying videos as “shorts” and preventing the uploader from changing this classification is a misfeature.

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 23/09/2026

@karolherbst is there a way to make rusticl less chatty? Getting pci id for fd 14: 10de:25b8, driver (null) pci id for fd 15: 10de:25b8, driver (null) === Rusticl warning: Patched Mesa libclc not detected. Upstream libclc may contain known bugs or breaking changes and isn't guaranteed to work […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 01/09/2026

Sono le 7:32 del mio primo giorno di rientro dalle ferie e voglio già tornare in ferie. #ferie #lavoro

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 12/08/2026

No #eclipse here. Sun set before the moon had the time to cover it, it was cloudy anyway, and when it didn't rain rain, it rained volcanic ash. #Etna #MtEtna #eruption

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 11/08/2026

I've mentioned in the past that among other things, we rely on the #Meteosat geostationary satellites to monitor #MtEtna. Even though the spatial resolution is low (the sub-satellite pixel has a nominal resolution of 3km), these satellites provide information at a high temporal rate: MSG […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 10/08/2026

So, I'm spending my vacation preparing #lava flow inundation #hazard maps for the ongoing #MtEtna #eruption, how's your summer going? #Etna

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 09/08/2026

Come giustamente ha detto la mia collega nella nostra chat di lavoro, «Ma sempre a #Ferragosto?» #eruzioni #eruzione #Etna #MtEtna

Attività termica sull'Etna vista da SEVIRI nelle ultime 24 ore.

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 31/07/2026

Need to prepare the images for the extended abstract for the 20th #SPHERIC. My mind is already on vacation. These are going to be the hardest-to-make images I've ever made.

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 31/07/2026

Here we go again … #Etna #eruption

Plot of the radiative power from Mt Etna as detected from MSG SEVIRI with our HOTSAT algorithm. There has been a huge spike (peaking at 10GW) late yesterday evening, and it's still going strong even if decreasing over time (down to 6GW)

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 29/07/2026

Our latest submission to JCP has been rejected as “out of scope” because the editor has interpreted the paper as being “an application”. A curious decision, since the paper is on how to compute acoustic terms efficiently and with higher precision compared to how it's usually done, and there are […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 27/07/2026

I want to simulate this with GPUSPH dmv.community/@jcrabapple/116988909…

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Reposted by Giuseppe Bilotta

2 Spoopy 4 You @jcrabapple.dmv.community.ap.brid.gy · 27/07/2026

🌊 In September 2023, seismometers around the world detected a mysterious signal repeating every 92 seconds for nine straight days. The source: a standing wave trapped inside a Greenland fjord. Here is what happened. A glacier in East Greenland had been thinning for years, no longer supporting […]

Original post on dmv.community

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 10/07/2026

From time to time I get a student whose exam project is good enough to be a thesis for their degree, and I feel embarrassed because mine is only a 6 CFU subject and I the only I can do is give them top marks. (Yes, they usually already have a thesis supervisor.)

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 09/07/2026

After sitting for two months in the editor's hand, our latest manuscript has been finally sent out to the reviewers. Coincidentally, just a couple of days after I sent an email asking about the status of manuscript. #academia #academicPublishing #publishOrPerish

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 05/07/2026

OK I'm going to need ask the Fediverse for some math help here, because I have a feeling I'm forgetting something obvious and can't find the resources I'd need to answer my own question. Let's say I have an underdetermined linear system. The methods generally employed to solve these find the […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 22/06/2026

I think I got my first #genAI / #LLM exam project submission. I do not remember if I made a clear policy statement about this during my lessons, and the students are foreigners (their native language is neither Italian nor English), so I can understand that they might have felt that having an […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 08/06/2026

Does anybody happen to know the power series expansion for arcsin( k sin(x)) or do I have to derive it myself? #askFedi #lazyFedi #math #maths

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 27/05/2026

In a meeting to organize a new project, and I keep hearing “Mastodon” instead of “milestone”. I suspect my brain isn't entirely on the job today.

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 21/05/2026

I'm reading news of someone in academia complaining about the new no-AI policy by ArXiv that requires something as outlandish as co-authors to take responsibility for what gets published in a scientific paper and … I'm sorry, how is this unexpected? Academic publishing has a lot of issuers, but […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 16/05/2026

I had a weird experience with #Julia and #parallelization. I had to collect all the pairs of items in two sets (S and G) that satisfied a particular relation function R. For Reasons™, it's easier to find these pairs looking at each element of S and find which elements of G are in relation with […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 15/05/2026

Has this always been a thing? I just got an email from a scientific journal publisher, informing me that an article of mine from 2024 was “among the most viewed articles” (in 2025, of the articles published in 2024). And I mean, OK, I'll take it, but I'm sitting here wondering: is this […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 14/05/2026

I'm currently looking for a way to bring together by experience with #SmoothedParticleHydroynamics and #remoteSensing, and as part of this process I also wrote a converter (in #Julia, because this has to fit within some existing code which I wrote in that language) that allows me to export […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 12/05/2026

A roomful of #ComputerScience professors fighting #GoogleGemini to do something that could be achieved with a sort -R | head -n 4 *sigh* #genAI #LLM

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 11/05/2026

For work I'm refreshing my knowledge on #OpenACC and I'm still wondering why anyone would want to touch that.

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Khronos Group @thekhronosgroup.fosstodon.org.ap.brid.gy · 05/05/2026

OpenCL 3.1 is here. The Khronos Group has moved several capabilities into the core spec, including SPIR-V kernels, subgroups, and integer dot products. Also includes improvements to the memory model and synchronization, plus better alignment with Vulkan via device UUID queries […]

Original post on fosstodon.org

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 23/04/2026

Following a #geophysics seminar where they're explaining how to prepare #fudge.

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Christopher Neugebauer @fedi.chrisjrn.fyi · 03/04/2026

This is what upsets me about the "enthusiastic junior engineer" explanation. The value in mentoring an enthusiastic junior engineer is that you'll have a capable senior engineer at the end of it.

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 15/04/2026

Obviously when I teach #GPGPU I point out that the main point is performance, and “how to measure” is a topic we address. Obviously, the primary metric is kernel runtime. I then introduce the effective bandwidth metric (bytes read + bytes written, divided by time taken by the kernel) which is a […]

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laura lemay @lemay.mastodon.social.ap.brid.gy · 06/04/2026

People who claim there is no engagement on Mastodon have never posted a photo of a really cute cat and it shows.

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 16/03/2026

Ah, the joys of #MicrosoftTeams: on #Linux I can only use the web version (obviously), BUT EITHER I use it on Chromium, which means I can see the video streams from others, but mine doesn't work OR I use it on Firefox, which allows it to see my camera but I cannot see the video streams from […]

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Kirk Smith, PhD @kirk.social.coop.ap.brid.gy · 07/02/2026

If anyone with some CFD/CAD experiences was wanting to contribute to our open-source battery project at fbrc.dev, this would be a great way - the Forner-Cuenca group at TU/E released some software for modeling porous electrodes in flow batteries, if it could be adapted to our geometry […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 26/02/2026

The support for #MathML in browser is often poor. The fact that instead of improving it the developers seem to be instead pressuring the standard bodies to impoverish the language only makes this worse. (I am aware of #MathJax. We shouldn't need a heavy-duty #JavaScript library to solve […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 20/02/2026

It's a bit early for #caturday but I just found out that at the CUS (university sports center) offices they have an armchair reserved for the local cat and I thought the Fediverse would like this piece of information.

A cat resting on a low red chair. Somebody has taped a piece of paper to the backrest, with the drawing of a cat and the text «SI PREGA DI NON DISTURBARE IL GATTO QUANDO DORME» (please do not disturb the cat when it's sleeping)

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 17/02/2026

I'm resharing this thread because it is relevant to the recent news of the shortages in GPUs (old news), RAM (en.wikipedia.org/wiki/2024%E2%80%93…) and most recently also storage —all apparently sucked up in the blackhole of LLM/genAI datacenters […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 13/08/2025

Reading the news about the UK National Drought Group asking its citizens to delete emails to reduce water consumption by data centers made me think (again) about one of the biggest limitation of the decision makers of our times, aside from the blatant corruption (we all know that the data […]

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Aleks Scholz @aleks.mastodon.scot.ap.brid.gy · 12/02/2026

"When we employ a graduate student to perform some work, it absolutely must be because the graduate student will benefit from that work, not merely because that work needs to get done."

Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 12/02/2026

Oof, apparently #oclgrind was removed from Debian unstable too.

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 12/02/2026

I'm double-checking I have everything ready for my #GPGPU lessons (course starts in March) and of course a recent upgrade seems to have busted #rusticl on my machine, with a #segfault somewhere in kernel compilation stage. Not happy about it, but I guess it's par of the course when running […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 30/01/2026

OK I have a #geometry #question because my brain has obviously decided to go on strike. Let's say I have a square Q in 2D, and a square W that is basically the bounding box of Q with sides aligned to the principal axes. If I expand Q by extending the sides by x, then W expands by […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 24/01/2026

I just went through two consecutive end-of-project meetings, and it has scientifically very interesting, but also extremely intense (gastronomically, too!) Thursday was the final meeting for the SAFARI project doi.org/10.5194/egusphere-egu24-8200, whose object has been to develop […]

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Giuseppe Bilotta @giuseppebilotta.fediscience.org.ap.brid.gy · 16/01/2026

I've been chasing for a few weeks now a bug where particles in a simulation “germinate” from nowhere, where “nowhere” actually means: two decies in a multi-GPU context suddenly start disagreeing about the velocity/position of a particle, so they each let it evolve its own way. (Why are […]

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