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Jan Gray

@jangray.bsky.social

Kilocore RISC-V FPGA accelerators; former Microsoft dev tools architect; Vice-chair RISC-V SoftCPU SIG & Composable Custom Extensions Task Group; blog: https://fpga.org. Cyclist. Let's try kindness. πŸ‡¨πŸ‡¦-πŸ‡ΊπŸ‡Έ

1,091 Followers  |  1,344 Following  |  923 Posts  |  Joined: 07.07.2023  |  1.8665

Latest posts by jangray.bsky.social on Bluesky

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composable-custom-extensions/src/isa-state.adoc at main Β· riscv/composable-custom-extensions This task group will propose ISA extension(s) and non-ISA hardware and software interop interfaces to enable routine reuse and composition of a subcategory of custom extensions called composable ex...

Composable custom extensions work in progress:

We’ve started drafting another spec section for a new uniform (extension-agnostic) extension state context management extension.

github.com/riscv/compos...

lists.riscv.org/g/tech-compo...

Interested? Join us. Join RVI and this CX TG.

06.12.2025 18:08 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Cinema will find a way. πŸ’•

06.12.2025 15:42 β€” πŸ‘ 783    πŸ” 206    πŸ’¬ 53    πŸ“Œ 47
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HHS changed the name of transgender health leader on her official portrait Admiral Rachel Levine was the first transgender person to be confirmed by the Senate to serve in the federal government. Her official portrait at HHS headquarters has been altered.

Admiral Rachel Levine was the first transgender person to be confirmed by the Senate to serve in the federal government. Her official portrait at HHS headquarters has been altered. n.pr/48HypvT

05.12.2025 22:50 β€” πŸ‘ 2784    πŸ” 1064    πŸ’¬ 326    πŸ“Œ 694

Came here to write that.

05.12.2025 21:03 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Metroid Prime 4 cover art & snapshot of the game credits showing the Environment Art section.

Metroid Prime 4 cover art & snapshot of the game credits showing the Environment Art section.

Very proud to say at last that Metroid Prime 4 is here!

It was an honor to work with such a passionate and hard working team on a project so many have been looking forward to for such a long time. It really challenged me to learn and grow as an artist, and I'm forever grateful to be a part of it. πŸ’œ

05.12.2025 02:13 β€” πŸ‘ 15    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

β€œTuesday through Friday, 10 am to 10 pm
…
After 6 pm children under 12 admitted only with an adult”

A third place for Torontonians, we hosted some amazing special exhibits shows in the Great Hall.

03.12.2025 07:03 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Map of Ontario Science Centre in its early years.

Map of Ontario Science Centre in its early years.

A bygone (?) safe place for generations of Toronto’s kids to explore and experience and learn and run wild all day long β€” especially so during a snowy winter break.

03.12.2025 06:57 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

β€œIts ravine setting was deliberate and makes it a unique building in the province and relevant to its place in Toronto, the city of ravines.”
β€” Moriyama Teshima Architects

mtarch.com/wp-content/u...

03.12.2025 06:50 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Descending the escalators down to the Valley Building you knew you were in for some amazing exploring and fun.

An especially pretty ravine in the winter snow.

I can still hear the recorded birdsong.

Years later, working there, I found our exhibit labs were there in the back, behind secret doors.

03.12.2025 06:04 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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My old colour matching exhibit from 1984 was ported to new hardware and (good? bad?) and was still going as of 2023.

03.12.2025 05:58 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A young woman has a long hair raising experience with the Ontario Science Centre Van de Graaff generator.

A young woman has a long hair raising experience with the Ontario Science Centre Van de Graaff generator.

The wonders ceased.
@onsciencecentre.bsky.social
@saveosc.bsky.social

03.12.2025 05:51 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Worth it

02.12.2025 19:13 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Showcasing Canada’s riches, promise, & opportunity, by 2030 the Centre can be a must-visit attraction for every business visit to Toronto, and (more important) a STEM magnet, delighting convoys of schoolbuses full of Ontario’s kids, discovering hands-on what new careers await them.

02.12.2025 05:51 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The Centre staff would curate ever new interactive exhibits, created in partnership with companies large & small, & universities.

Admission free to the public.

Initially backstopped by the federal government, then self-sustaining, with exhibitors paying for their exhibits & share of space & staff.

02.12.2025 05:41 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

So many great Canadian STEM careers and businesses were inspired at the Ontario Science Centre. 50 million visitors!

Ontario’s loss is Canada’s gain. Reimagine it as the Future of Canada Centre: a vast, immersive Expo Canada β€” a one stop showcase for our best new industries, products, ideas.

02.12.2025 05:36 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Highly recommended for those with β€œbuild my ASIC before I die” on their bucket list.

29.11.2025 16:45 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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a woman wearing a yellow jacket is looking down ALT: a woman wearing a yellow jacket is looking down
29.11.2025 15:53 β€” πŸ‘ 20    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Great idea, @jangray.bsky.social !

www.thestar.com/opinion/star...

29.11.2025 13:20 β€” πŸ‘ 13    πŸ” 5    πŸ’¬ 0    πŸ“Œ 1

Happy Birthday from Seattle-ish

28.11.2025 16:47 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

=>
"Numerics and AI", Paulius Micikevicius, GPU Mode, Nov 15, 2025 www.youtube.com/watch?v=ua2N...
github.com/gpu-mode/lec...

Stochastic Rounding, Minisymp on Probabilistic Rounding, Sep 1 bsky.app/profile/ogaw...
Survey, Proc of the IEEE, Jun 26 bsky.app/profile/ogaw...
36 pp, 201 ref
MX+, MICRO25

25.11.2025 03:33 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

If Ford gov’t doesn’t reopen @onsciencecentre.bsky.social pronto, it will never reopen.

2028, laying off the rest of the Science Centre staff, β€œI’m as disappointed as anyone,” fibbed the Minister of Infrastructure, reflecting on her 2024 decision to shutter an institution beloved of generations.

24.11.2025 17:08 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

I was thinking of that movie with tap dancing guard! Thanks James

23.11.2025 20:14 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Is NVLink Fusion a response to Ultra Accelerator Link? Would it have happened sans UAL? πŸ€ͺ

20.11.2025 04:47 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

bsky.app/profile/jang...

20.11.2025 02:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Photo of Patrick Finnegan and colleague at the MOBATCH booth at SC’25 with a live VAX-11/780 and a board from a SiCortex parallel computer that I remember seeing at SC 2007 (?)

Photo of Patrick Finnegan and colleague at the MOBATCH booth at SC’25 with a live VAX-11/780 and a board from a SiCortex parallel computer that I remember seeing at SC 2007 (?)

I was mentioning him 3 hours ago in this booth at SC β€” this VAX-11/780 was up and running 4.3BSD.
It’s mobat.ch/systems/vax7...

20.11.2025 02:27 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Microsoft Cobalt 200

- TSMC 3 nm
- two chiplets with custom HB interconnect
- 132 cores (Armv9.2), 66 per chiplet
- 3 MB private L2$
- 192 MB L3$
- 12 memory channels
- per core DVFS

www.hardwareluxx.de/index.php/ne...

19.11.2025 08:29 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Hooray for bitblt, a.k.a. rasterop in some backward provinces.

You younguns don’t get it β€” but if all you knew was 24x80 character displays (*) or worse, bitblt was a long tall drink of water.

Color is fine but 80% of the advance came with the bilevel display.

(*) vector displays notwithstanding

19.11.2025 08:26 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

Anyway, apologies if I’ve missed your FPGAs for HPAc thing. I suppose I’m just disappointed that (it seems) Xilinx and Altera stalwarts are not here anymore.

If you’re here with a cool FPGA accelerated solution by all means set me straight. Thank you.

19.11.2025 04:18 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

But I was also told the machine’s sites/qubits come and go over time, you have to map the model to the working sites du jour, and the fine gadget can take months to calibrate.

19.11.2025 04:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Stepping in for FPGAs (in the role of exotic and challenging to use and also-ran to CPUs/GPUs) are a gaggle of quantum computing ventures. I did see one solve a simple Hamiltonian cycles / traveling salesman-esqe problem using Dwave QUBOs and Ising models / quantum annealing. Cool.

19.11.2025 04:18 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

@jangray is following 20 prominent accounts