Finally some progress. But it's baffling.
The very first step of the de-embed filter is to execute FFTs of dinFwd to vectorTempBuf3 and dinRev to vectorTempBuf1.
It appears that somehow the FFTs trade places in the failure scenario, with the frequency domain version of dinFwd being written to vectorTempBuf1 and dinRev going to vectorTempBuf3.
I don't even know where to start debugging this, it smells like something going wrong in the depths of vkFFT with some state …
Viktor Orbšn told Putin ‘I am at your service’ in October phone call | Viktor Orbšn | The Guardian
https://www.theguardian.com/world/2026/apr/07/viktor-orban-told-putin-i-am-at-your-service-in-october-phonecall
JD Vance repeatedly criticised allegedly unprecedented and “disgraceful” foreign interference in the Hungarian parliamentary election,
while effectively strongly endorsing Viktor Orbšn to win the vote on Sunday
in what critics will no doubt see as his very own interference with the country’s electoral process.
Liberty Justice Center Victorious in Lawsuit Challenging Trump's Section 122 Tariffs (Liberty Justice Center)
https://libertyjusticecenter.org/pressrelease/liberty-justice-center-victorious-in-lawsuit-challenging-trumps-section-122-tariffs/
http://www.memeorandum.com/260507/p108#a260507p108
CNN defends the authenticity of an Iranian "victory" statement, saying it came from "official Iranian spokespeople", after criticism from Trump and Brendan Carr (Ted Johnson/Deadline)
https://deadline.com/2026/04/cnn-trump-iran-statement-1236784202/
プラトニックプラネット
"JD Vance has railed against the EU, accusing it of blatantly interfering in Hungary’s upcoming elections, even as the US vice-president said he had travelled to Budapest to “help” Viktor Orbšn win Sunday’s vote."
https://www.theguardian.com/world/2026/apr
JD Vance will visit Hungary on Tuesday
in an 11th-hour attempt to boost key MAGA ally Prime Minister Viktor Orbšn
before an all-important election on Sunday, but the U.S. vice president’s trip appears unlikely to swing an increasingly bitter race.
Trump has already issued several endorsements of Orbšn
— a Kremlin-aligned proponent of “illiberal democracy”
— but polls suggest those interventions have done little to boost the struggling prime minister,
who …
JD Vance heads to Hungary to support Viktor Orbšn ahead of high-stakes election (Domi Suskova/CNBC)
https://www.cnbc.com/2026/04/07/jd-vance-visits-hungary-viktor-orban-trump-russia-eu.html
http://www.memeorandum.com/260407/p27#a260407p27
Is there a term for second-order SIMD? Like vectors within vectors?
GPUs are already SIMD in that each shader thread is one SIMD lane within a large vector in the SM... But I am starting to write shaders for ngscopeclient that pack four boolean uint8 simd lanes into a single uint32 vector.
This allows you to get 4x the memory bandwidth and also doesn't rely on the shader_int8 extension that not all GPUs support, eliminating the need for a CPU based fallback implementation