Tootfinder

Starting to think about GPU acceleration of protocol decodes (rather than just basic math blocks) in ngscopeclient.
Here's the filter graph I'm thinking of using as a benchmark: dual lane QSGMII, 20M points per channel.
The filter graph takes 944 ms end to end to run on my box (2x Xeon 6144 2080 Ti).
Major time consumers:
* Eye pattern (~345 ms)
* QSGMII (~337 ms)
* CDR PLL (~310 ms)
* 8B10B (~160 ms)
* SGMII (~120 ms)
Note that the …

Complications from surgery landed my dad back in the hospital late Wednesday. Successful exploratory surgery found and hopefully stopped the internal bleeding.
If a few key numbers remain stabile, he might get released today. But in the interim, it’ll have to be a Father’s Day video call to his hospital room.
There are myriad ways in which to view this, but I’m choosing gratefulness. #HappyFathersDay

Hivemind: I noticed that my academic CV is the last document I maintain in #TeXLaTeX. Is there a #Markdown (preferably #pandoc) based CV system/template/filter that you can recommend? PDF output is required, HTML …

Finished the initial GPU based zero-crossing search block for libscopehal.
It's not used in anything yet as it's not an exact drop-in replacement API wise for the CPU version, but is massively faster (30x speedup for 50M points on 2080 Ti vs Xeon 6144) so I'll be gradually refactoring filters to take advantage of it,

Higher Chiral Algebras in a Polysimplicial Model
Laura O. Felder, Zhengping Gui, Charles A. S. Young
https://arxiv.org/abs/2506.09728 https://

Higher Chiral Algebras in a Polysimplicial Model
Vertex algebras are equivalent to translation-equivariant chiral algebras on $\mathbb{A}^1$, in the sense of Beilinson and Drinfeld. In this paper we give an algebraic construction of a chiral algebra on $\mathbb{A}^n$; this can be seen as an algebraic construction of a higher-dimensional vertex algebra. We introduce a model, in dg commutative algebras, of the derived algebra of functions on the configuration space of $k$ distinct labelled marked points in $\mathbb{A}^n$. Working in this mode…

Channel Estimation with Asynchronous Reception for User-Centric Cell-Free MIMO Systems
Xuyang Sun, Hussein A. Ammar, Raviraj Adve, Israfil Bahceci, Gary Boudreau
https://arxiv.org/abs/2506.05496

Channel Estimation with Asynchronous Reception for User-Centric Cell-Free MIMO Systems
The user-centric, cell-free wireless network is a promising next-generation communication system, but signal synchronization issues arise due to distributed access points and lack of cellular structure. We propose a novel method to recover synchronous pilot reception by introducing new pilot sequences and a matched filter window, enabling orthogonality even with asynchronous reception. Our approach mimics synchronous transmission by extending training sequences. Analysis shows asynchronous rece…

It is so nice how the #pandemicpond is maturing now. This is its 5th summer! Can't believe it. The bog filter has made a massive difference for the water clarity and keeping down the algae. The first pic below is from this time last year and you can see the algae clouding and sliming everything.
Two years ago I started planting some moss around rocks in the stream and it has filled in really nicely and naturally. It also served to trap seeds I think and grass and other "weeds" but I like that it just looks more and more like a normal stream. We even have a marsh marigold at the top of the stream (last pic) that we did not plant that came from one that was in the top pond and was eaten by deer. 🦌
#diy #ponds #gardening #fish #ecosystem #portalberni