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fclc.bsky.social
HPC, BLAS, I make things FAST
 Standing on the shoulders of giants TLDR; 🇨🇦🐧🧑🏼‍💻🚴🏎️🧗🏼 💩posting. Haver of opinions that are all my own. I mainly do #HPC #BLAS #AI #RVV and #clusters Proud French Canadian, you’ll hear about it (I help with HPC.social)
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How it started: Inject it into my veins! How it's going: GET THE NARCAN WE'RE LOSING HIM

It's been a while since I've written about the innards of @compiler-explorer.com. xania.org/202506/how-c... has the details, some statistics and some fun war stories.

For the ASM nerds: a full deep dive on the @tenstorrent.bsky.social ISA and it's implementation on WH is now live on our GH! github.com/tenstorrent/...

"focal length", "crop factor", "sensor size", "35mm equivalent" please just tell me the FoV im crying in the club rn

FYI TPC25 - the AI for Science event, early bird prices end June 15 tpc25.org

Lots of folks are exasperated with the lead times for Infiniband, the requirements of the libraries for tightly coupled MPI codes etc. in terms of alternatives, have you evaluated other solutions *without* considerations of costs? I heard some folks talking up Ethernet/Slingshot/omnipath, but…

Ha, amazing! I better start contributing then.

This is a great paper for system designers that explains many of the key workload characteristics of large model training through the lens of system architecture. Tho written by DeepSeek, most insights apply more broadly. #AI

I have completed all nine of my SC25 paper reviews a full week early! To celebrate, I jotted down my thoughts on the peer review process (www.glennklockwood.com/garden/peer-...). I am curious how others approach this; it's not something widely discussed.

thanks topology for solving the sorting problem

Had the great pleasure tonight of being with Brown CS professor Tom Doeppner, who is retiring after an extraordinary 49 years of teaching. Tom -- and his legendary OS course, CS169 -- inspired multiple generations of practitioners. Thank you, Tom!

#Intel refreshed the #AVX10_2 specification to 4.0: cdrdv2-public.intel.com/855340/36105... CPUID.24h.ECX=1.ECX[2] = AVX10_VNNI_INT #MOVRS #SM4 #AMX_AVX512 #AVX10_VNNI_INT are decoupled from AVX10.2

Modern world is so cool, but so easy to take for granted. About to be over the north pole, was slightly concerned about the wifi dead zone above the pole. Caught myself realizing "I'm 10 KM in the air, crossing over the point of rotation of the planet, and I'm worried about my network access?"

The most underutilized #AVX512 instruction, VPSHUFBITQMB, is actually very useful for compactly generating a mask with arbitrary criteria based on b[5:0], e.g. to select special characters for parsing: if the second operand is a broadcasted 64-bit vector, where the ones represent the searched values

I'm writing an article about perf optimization and I wanna try to get some good branch prediction data. I've never tried to use this type of tool so im not sure where to look @geofflangdale.bsky.social tell me about x86_64-unknown-linux profiling using perf counters. where should I be looking?

Sovereign Tech Agency Investing In GCC's Fortran Frontend "GFortran" - https://www.phoronix.com/news/Sovereign-Tech-Agency-GFortran

@eurohpc-ju.bsky.social are aiming for an exascale European #RISCV #supercomputer by 2030 at #RISCVSummitEurope

Why RISC-V for HPC? @nickbrown-hpc.bsky.social presents at the RISC-V Summit Europe

#RISCVSummitEurope has been great so far, and I am looking forward this afternoon talking about why and how #RISCV can play an important part in #HPC

hi compilersky what is ur favorite instruction mnemonic mine is pclmulqdq

It's named RISC-V because we have 5 ways to do matrices Vector in Vector Dot Product Matrix in Vector Vector in Matrix Matrix in Matrix

personally think the "gen z can't computer" thing is kinda bunk too, how are people supposed to know OSs they didn't use, never mind OSs that don't even come with a manual any more

I have two books here, on high dimensional statistics and high dimensional probability. I am specifically looking for a book that treats intuition around high-dimensional geometry, as I have a lot of high-dimensional polytopes to reason about. Can anyone recommend anything?

Might need a version of my PFP but it's felix the cat ridding the LLVM Dwagon :3

Vibe check: Next Silicon is basically SambaNova with FP64 multipliers trying to use PGO to deal with the FPGA/CGRA NP hard optimization problem right?

Kicking off #HPSFCon strong 👋 Christian Trott of @sandialabs.bsky.social welcomed attendees & outlined what to expect 🔍 @tgamblin.bsky.social of LLNL gave the HPSF State of the Project Overview 🤝 Heidi Poxon of AWS shared all about the Governing Board & vision for HPSF

OOP and FP are psyops from BigCompiler to distance you from the beauty of The Machine™️

Days since burned by someone using Ofast in a build script = NAN

Join the upcoming webinar series on EESSI, the European Environment for Scientific Software Installations (eessi.io): 5 Mondays in a row, starting next week 5 May’25. Attendance is free, registration is required. More info and registration via www.eessi.io/docs/trainin... #HPC

Rio Yokota from Tokyo Tech talks about scaling laws for #HPC, #AI training, inference, and spending 💸. We're in the exponential scaling part of a logistic curve - when will we hit the bottom? Nice discussion and analogies between the fields 🤔.

What is #Intel #VPMM (Vector Extension Packed Matrix Multiplication)? CPUID.24h.ECX=1.ECX[0] From the latest TDX 1.5 specification (348549-006US pdf), p. 116. cdrdv2-public.intel.com/853286/intel... cc: @fclc.bsky.social

Faculty: please take note of this environment and review your department's reappointment and tenure guidelines. How will you support faculty who will be up for review without meeting historical funding norms? Revising those guidelines and recalibrating committee norms takes time so be proactive.

UKRI funding opportunity: access to HPC facilities including ARCHER2. An open and flexible route to computational support for high quality projects across the entire UKRI remit. Closes 22 May 2025. edin.ac/42IHvW6

Exclusive: The director of the National Science Foundation announced his resignation today, 16 months before his 6-year term ends, in a letter to staff obtained by Science. scim.ag/42vc3fn

he’s right and he’s right to say it

Go climb a rock