discussion of #Redis #licensing change and #antirez returning to the company
#antirez on returning to the #Redis company and the #licensing change
#Aaronson commenting on the #Google Willow 105-qubit #QC #news announcing (or extending) quantum supremacy
application of binary search #algorithms in checking CCTV footage for bicycle theft
how to buy pieces of iron–nickel #meteorites for US$2–3 per gram
Iron Meteorite Widmanstatten Pattern Produced in Laboratory #meteorites #materials #PDF #paper
chunks of the Muonionalusta meteorite ranging from 18 grams to 332 grams for sale, #pricing ranging from €5.03 to €5.24 per gram. #meteorites
Fragments of the Muonionalusta meteorite are prone to rusting in moist air. #meteorites #materials
Ketone bodies apparently remove #Alzheimer’s “misfolded proteins” (β-amyloid plaques?) #health #nutrition #toread #ketosis
“β-hydroxybutyrate is a metabolic regulator of proteostasis in the aged and Alzheimer disease brain” #paper #ketosis #Alzheimer’s #toread “We validated the physiological relevance of the mechanism by showing rescue in cell-based and C. elegans models of amyloid-β proteotoxicity.”
#toread #news “Kraig Biocraft Laboratories (...) uses transgenic silkworms to produce lines of recombinant spider silk. The company plans to produce up to 10 metric tons of spider silk in 2025.”
when they accidentally dropped a #nuclear bomb on #Albuquerque and it didn’t go off (in 01957 from a B-36); article with some #history of the Teller–Ulam “sparkplug” design
discussion of #convolution #algorithms including some ideas from compressed sensing etc.
#convolution #algorithms using polynomial multiplication for Transformer #neural-networks, going back and forth between the coefficient representation of a polynomial and value representations of it, especially evaluating it at n+1 complex roots of unity. #math #toread
common misconceptions about #compilers: “Optimization gives us optimal programs”, “Branch weights and the CPU’s branch predictor”, “-O3 produces much faster code than -O2”, “Javascript interpreters JIT at runtime because they don’t know which paths are hot ahead of time”, “If you have a compiler, you don’t need an interpreter”, “The middle-end is target/platform-independent”, “The compiler optimizes for data locality”, “-O0 gives you fast compilation”, “Templates are slow to compile”, “Separate compilation is always worth it”, “Why does link-time optimization (LTO) happen at link-time?”, “Inlining is useful primarily because it eliminates a call instruction”, “The role of the inline keyword”, “The best production compiler to study is LLVM”, “Undefined behavior only enables optimizations”, “The compiler can “simply” define undefined behavior”, “99% correctness rate is ok”. All of these are false except for the ones that aren’t falsifiable. #Baziotis recommends studying the Golang compiler, LDC, and Digital Mars #D.
“Dominance is one of the most ubiquitous concepts in #compilers. By far the most popular algorithm for discovering dominance relationships is the Lengauer-Tarjan algorithm - a fascinating but scary piece of genius. In this article, we will deconstruct its most important part, the computation of semidominators. To tackle it, I’ll use a lot of intuition, crappy drawings and some imagination.” #toread #algorithms #Baziotis
“A fast algorithm for finding dominators in a flowgraph is presented. The algorithm uses depth-first search and an efficient method of computing functions defined on paths in trees.” The Lengauer–Tarjan algorithm #paper from 01979. #toread #compilers #graphs #algorithms “A vertex v dominates another vertex w≠v in G if every path from [the start vertex] r to w contains v.”
#LDC is the #LLVM based #D compiler which Baziotis recommends studying. “The compiler uses the official DMD frontend to support the latest version of D2, and relies on the LLVM Core libraries for code generation.” #compilers
“DMD is the reference compiler for the #D programming language.” Baziotis recommends studying it. #compilers
#compilers sometimes can’t apply certain optimizations because they would invoke #undefined-behavior, for example hoisting a constant expression out of a loop that might execute zero times. #toread #Baziotis
Should #compilers define all #undefined-behavior? #toread #Baziotis
using #machine-learning and #neural-networks to generate cost models for #compilers targeting #tensor-processing-units #PDF #paper
#compilers for #Pandas to get 1000× better #performance on #exploratory-data-analysis: "Dias" by #Baziotis
"Modin" scales #Pandas notebooks across clusters for #exploratory-data-analysis with better #performance #toread #dataframes
"Dask" is another distributed #dataframes system that “uses #Pandas under the hood” for #exploratory-data-analysis with better #performance #toread
"Koalas" provides the #Pandas #dataframes API on top of Apache #SPARK for #exploratory-data-analysis with better #performance #toread
#Baziotis on intermediate representations in #compilers and how really target-independent they are. #toread
#Baziotis bachelor’s #dissertation #paper on #compilers: “Designing Decoupled Compiler Transformation APIs/Σχεδιάζοντας Αποσυνδεδεμένες Διεπαφές για Μετασχηματισμούς Μεταγλωττιστών”
#Compilers in #Greek are “Μεταγλωττιστής” (well, that’s the singular) or “μεταφραστής”
“A Fast In-Place Interpreter for WebAssembly” #PDF #paper by Titzer on #wasm without compilers
#paper on "goSLP", which uses linear #optimization (ILP) for #SIMD #vectorization, achieving significant #performance gains on floating-point benchmarks like SPEC2017fp. “Using an integer linear programming (ILP) solver, goSLP searches the entire space of statement packing opportunities for a whole function at a time, while limiting total compilation time to a few minutes. Furthermore, goSLP optimally solves the vector permutation selection problem using dynamic programming.” #compilers
Discussion of #Baziotis article on misconceptions about #compilers.
Shahjahanpur in #Uttar-Pradesh.
Kanpur, with 4.6 million people, is the largest city in #Uttar-Pradesh.
Bikaner, with 0.644 million people, is in #Rajasthan, where the #Indus-Valley civilization was.
#paper on #creatine #supplements under #CC BY. #nutrition
#Texas #adverse-possession #law ranges from 3 years to 10 years depending on the circumstances.
The #Austin, #Texas #homelessness project of renovating Pecan Gardens into 78 apartments for US$6.5M was delayed again.
#Milei seems to be getting #finance buyin for #energy companies in #Argentina for #shale-oil and shale gas in Vaca Muerta.
#Bloomberg #news on #Milei getting #finance: “Shale oil driller Vista #Energy issued $600 million in New York on Wednesday in its first ever foreign bond sale. Pampa Energia SA, which is also ramping up output in #Argentina’s heralded Vaca Muerta shale patch, has arranged investor meetings as it eyes returning to capital markets for the second time this year. MSU Energy borrowed $177 million to refinance its debt. (...) Argentina’s sovereign debt spread is at 757 basis points, hovering around levels not seen in five years, according to a JPMorgan index. (...) Vista sold its 11-year bond with a 7.6% yield, compared with rates in the 8%-9% range when a wave of issuers came to the market between July and October.”
#Bloomberg #news from October on #Milei getting #finance: “#Argentina’s largest companies are rushing to issue dollar debt as yields tumble, a tentative sign that President Javier Milei’s shock therapy is starting to restore investor confidence in the economy.
Banco de Galicia y Buenos Aires SAU, the country’s biggest private lender, sold $325 million of bonds due 2028 abroad at a 7.875% yield this month, while YPF Luz, the power unit of state-owned driller YPF SA, issued $420 million of eight-year notes yielding 8.2%. State-owned Banco de la Nacion said it’s planning a return to international capital markets for the first time in some 30 years.”
El Carajo is at 2465 SW 17th Ave, Miami, Florida. #humor
#PDF list of 2411 #VoIP providers the #FCC in the #USA is going to block for spamming
#news release from the #USA #FCC blocking 2411 #VoIP providers