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| > It just seems so obvious today that you can create gates, you can create macros, you can create complex designs, and you can define the interface at every level so you can hook them up and they just work. That idea came out of Conway and the early pioneers of VLSI.
And you can see the opposite of this in many early microprocessor designs, like the (original, NMOS) 6502 and Z80. There's a lot of highly idiosyncratic designs for gates, heavily customized for the physical and electrical context that they're used in - and I won't deny that they're often very clever and space-efficient, but they were also extraordinarily time-intensive to design, and weren't reusable. It made some complex designs possible within the limitations of the time's fabrication technology, but it wasn't an approach which would have ever scaled to larger designs. One great example of this is this bit of 6502 overflow logic: http://www.righto.com/2013/01/a-small-part-of-6502-chip-expl... |
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| Does that mean there's an opportunity for increasing performance by bringing collections of gates into scope for optimization? Or does that not actually let you decrease transistors very much? |
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| When did you meet her at this bio conference? I’m curious what aspect of biology she was interested in and whether she dove into the subject further. |
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| Lynn was a real role model for me over the past 25 years. I'm sad that I never got to meet her, but her technical impact is everywhere. |
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| Lynn Conway, co-author along with Carver Mead of "the textbook" on VLSI design, "Introduction to VLSI Systems", created and taught this historic VLSI Design Course in 1978, which was the first time students designed and fabricated their own integrated circuits:
>"Importantly, these weren’t just any designs, for many pushed the envelope of system architecture. Jim Clark, for instance, prototyped the Geometry Engine and went on to launch Silicon Graphics Incorporated based on that work (see Fig. 16). Guy Steele, Gerry Sussman, Jack Holloway and Alan Bell created the follow-on ‘Scheme’ (a dialect of LISP) microprocessor, another stunning design." Many more links and beautiful illustrations of her student's VLSI designs: https://news.ycombinator.com/item?id=31758139 Also, Jim Clark (SGI, Netscape) was one of Lynn Conway's students, and she taught him how to make his first prototype "Geometry Engine"! http://ai.eecs.umich.edu/people/conway/VLSI/MPCAdv/MPCAdv.ht... Just 29 days after the design deadline time at the end of the courses, packaged custom wire-bonded chips were shipped back to all the MPC79 designers. Many of these worked as planned, and the overall activity was a great success. I'll now project photos of several interesting MPC79 projects. First is one of the multiproject chips produced by students and faculty researchers at Stanford University (Fig. 5). Among these is the first prototype of the "Geometry Engine", a high performance computer graphics image-generation system, designed by Jim Clark. That project has since evolved into a very interesting architectural exploration and development project.[9] Figure 5. Photo of MPC79 Die-Type BK (containing projects from Stanford University): http://ai.eecs.umich.edu/people/conway/VLSI/MPCAdv/SU-BK1.jp... [...] The text itself passed through drafts, became a manuscript, went on to become a published text. Design environments evolved from primitive CIF editors and CIF plotting software on to include all sorts of advanced symbolic layout generators and analysis aids. Some new architectural paradigms have begun to similarly evolve. An example is the series of designs produced by the OM project here at Caltech. At MIT there has been the work on evolving the LISP microprocessors [3,10]. At Stanford, Jim Clark's prototype geometry engine, done as a project for MPC79, has gone on to become the basis of a very powerful graphics processing system architecture [9], involving a later iteration of his prototype plus new work by Marc Hannah on an image memory processor [20]. [...] For example, the early circuit extractor work done by Clark Baker [16] at MIT became very widely known because Clark made access to the program available to a number of people in the network community. From Clark's viewpoint, this further tested the program and validated the concepts involved. But Clark's use of the network made many, many people aware of what the concept was about. The extractor proved so useful that knowledge about it propagated very rapidly through the community. (Another factor may have been the clever and often bizarre error-messages that Clark's program generated when it found an error in a user's design!) 9. J. Clark, "A VLSI Geometry Processor for Graphics", Computer, Vol. 13, No. 7, July, 1980. |
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| Thanks for this context. I hadn't known about the link to Jim Clark but it makes sense.
Here's another one. It's Carver Mead, Lynn Conway's co-author, talking about the genesis of their legendary book, and process. I was a university student at the time, and this was the way you could get your little custom processor into a fab and get hardware back. It was kind of amazing to go from a digital file through a compiler and verification, and then to hardware. Carver's description with some backstory (probably helpful): https://www.youtube.com/watch?v=eAZWXX5930M&t=1984s And skipped ahead to just the book part: |
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| > When nearing retirement, Conway learned that the story of her early work at IBM might soon be revealed through the investigations of Mark Smotherman that were being prepared for a 2001 publication
That kind of makes it sound like Smotherman was poking around trying to find Conway's secrets. What was actually happening is that he was trying to research an early IBM supercomputer project, but was not having much luck. There was very little published information, and IBM had apparently lost its records. Smotherman asked on the net for help and Conway responded and gave him a massive amount of information. Here's an article that provides more information [1]. Here's the first few paragraphs: > Late in 1998, a young researcher delving into the secret history of a 30-year-old supercomputer project at IBM published an appeal for help. As Mark Smotherman explained in an Internet posting, he knew that the project had pioneered several supercomputing technologies. But beyond that, the trail was cold. IBM itself appeared to have lost all record of the work, as if having experienced a corporate lobotomy. Published details were sketchy and its chronology full of holes. He had been unable to find anyone with full knowledge of what had once been called “Project Y.” > Within a few days, a cryptic e-mail arrived at Smotherman’s Clemson University office in South Carolina. The sender was Lynn Conway, one of the most distinguished American women in computer science. She seemed not only to know the entire history of Project Y, but to possess reams of material about it. > Over the next few weeks, Conway helped Smotherman fill in many of the gaps, but her knowledge presented him with another mystery: How did she know? There was no mention of her name in any of the team rosters. Nor was any association with IBM mentioned in her published resume or in the numerous articles about her in technical journals. When he probed, she would reply only that she had worked at the company under a different name--and her tone made it clear there was no point in asking further. > What Smotherman could not know was that his appeal for strictly technical information had presented Lynn Conway with a deeply personal dilemma. She was eager for the story of IBM’s project to emerge and for her own role in the work to be celebrated, not suppressed. But she knew that could not happen without opening a door on her past she had kept locked for more than 30 years. > Only after agonizing for weeks did Conway telephone Smotherman and unburden herself of an extraordinary story. > “You see,” she began, “when I was at IBM, I was a boy.” [1] https://www.latimes.com/archives/la-xpm-2000-nov-19-tm-54188... |
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| Thank you for sharing those details, I didn't know that. I learned and grew so much by reading Lynn's autobiography, but there's so much in there and it's so deep and personal, that it's hard to get my head around how amazing and difficult a life she had, and details like that help.
I was researching some of the names that Alan Kay mentioned in his classic paper about the history of Smalltalk and his 1993 interview with Yoot Saito, and discovered another amazingly accomplished trans woman at Xerox PARC, Diana Merry-Shapiro, who co-invented BitBlt, and wrote one of the first systems for overlapping windows for Smalltalk, and the Smalltalk code editor. https://github.com/YootTowerManagement/YootTower/blob/main/Y... Diana Merry-Shapiro (Xerox PARC): A member of the Learning Research Group, she significantly contributed to the development, testing, and application of the Smalltalk system, focusing on educational technology and learning methodologies. Her involvement was pivotal in integrating and refining the BitBLT graphics operation, enhancing the system's capabilities in graphical manipulation and display. Diana Merry https://en.wikipedia.org/wiki/Diana_Merry SMALLTALK AT 50 https://computerhistory.org/blog/smalltalk-at-50/ >The second half of the reunion event reunited members of Alan Kay’s Learning Research Group. After a brief introductory video featuring Diana Merry-Shapiro and her memories of what she worked on at PARC, Dave Robson hosted a discussion with Dan Ingalls, Ted Kaehler, and Glenn Krasner. Oral History of Diana Merry Shapiro https://www.youtube.com/watch?v=5sTUaO3PNkQ Casa Susanna: https://www.hammertonail.com/reviews/casa-susanna/ Review: ‘Casa Susanna,’ starring Katherine Cummings, Diana Merry-Shapiro, Betsy Wollheim and Gregory Bagarozy: https://culturemixonline.com/review-casa-susanna-starring-ka... Dr. Vanessa Freudenberg is another amazing successful trans woman programmer in the Smalltalk world who's done all kinds of groundbreaking work with Alan Kay, Smalltalk, Squeak, SqueakJS, Viewpoints Research, Croquet, Harc, OLPC, and is quite open and extremely happy about her transition in 2020. https://www.freudenbergs.de/bert/ Here’s Yoot Saito’s 1993 interview with Alan Kay, when he was visiting Japan with Douglass Engelbart, and Yoot was working for MacWorld Japan. He also has interviews with Douglass Engelbart, Joanna Hoffman, Steve Wozniak, and Bill Atkinson that I hope to dig up and publish, since they were only published decades ago in Japan. https://github.com/YootTowerManagement/YootTower/blob/main/Y... Here's Alan Kay's history of Smalltalk paper that Brett Victor put online in html, and I'm working on transcribing and formatting the appendices that are missing from that. |
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| Wow, 4 citations. I feel happy for Lynn that she ended up doing a lot more impressive work, but definitely this should be restored to its proper place in the history of computing.
Something doesn't quite compute here though - according to Wikipedia after she announced her intent to transition Lynn was fired in 1968, but this paper was from 1966 - https://news.ycombinator.com/item?id=40650635 also does not have any information. Maybe at least someone shielded her for some time? Also Francis Allen seems to have worked on the same project at IBM - she mentioned there were works by other women that other people (Turning award winners IIRC) took credit of - could Lynn's work be one of those? Really hope Fran and Lynn would at least knew each other. |
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| Which is the personal blog of Helen Boyd, author of one of the classic books on crossdressing and transgender, My Husband Betty. I was hoping for something more authoritative... |
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| May she rest in peace, her achievements and contributions to the field of computing are unfortunately unknown to those outside of the field - but impacted so much more than just computing. |
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| I'm ashamed to say I did not know about this person before today; what an interesting life she led.
A true giant both for industry and people. Shame on all of "us" for missing the date. |
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| It's such a tragedy. She has an explanation, called "The Conway Effect."
She wrote about it 2018. "When “others” (such as women and people of color) make innovative contributions in scientific and technical fields, they often “disappear” from later history and their contributions are ascribed elsewhere. This is seldom deliberate—rather, it’s a result of the accumulation of advantage by those who are expected to innovate. This article chronicles an example of such a disappearance and introduces the Conway Effect to elucidate the disappearance process." https://www.computer.org/csdl/magazine/co/2018/10/mco2018100... |
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| Thank you for the inspiration as I continue my gender transition. I appreciate your struggles and dedication to living a life that was "for you" and not for anyone else. RIP. |
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| never mind, I answered my own question :) I just realized it is only so long as the article/news of the death of the individual is at the top of HN. |
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| While her contributions to the VLSI design methodologies are the best known and the most influential, that is because at that time she worked in academia, in plain sight.
She had another extremely important contribution much earlier, when working at IBM, at the Advanced Computer System project. She invented the first methods that could be used for designing a CPU that can initiate multiple instructions in the same clock cycle and also out of order in comparison with the program. Such a CPU will be named only 2 decades later as a superscalar CPU (also inside IBM and by people familiar with the old ACS project). (The earlier CDC 6600 could initiate only 1 instruction per clock cycle, in program order, even if after initiation it could execute the instructions concurrently and complete them out-of-order, depending on the availability of execution units.) Her work on superscalar CPUs did not become known until much later, because it was written in confidential internal reports about the ACS project, which was canceled, unlike the later and much less comprehensive work of Tomasulo, which was published in a journal and which was used in a commercial product, so it became the reference on out-of-order execution in the open literature, for several decades. At the time when she worked at IBM, her legal gender was still male, and when she announced her intention of gender change, she was fired by IBM, which is likely to have contributed to the obscurity that covered her ACS work at IBM. Her "Dynamic Instruction Scheduling" report from 1966 is mandatory reading for anyone who is interested about the evolution of the superscalar and out-of-order CPUs. https://ai.eecs.umich.edu/people/conway/ACS/Archive/ACSarchi... |
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| Fascinating. It wasn't long ago I did a high performance computer architecture grad class. They covered Tomasulo but no mention of Conway's contributions. TIL. |
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| > all people deserve respect simply for being human, they shouldn't have to invent both superscalar architecture and VLSI design in one lifetime just to be treated politely.
QFT |
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| Wikipedia has a reference manual which describes this scenario[1]. Lynn was prominently and publicly known for her post-transition work - though her IBM achievements are included, they are the minority of her career's work. She wasn't in the public eye at the time, so her former name is considered a privacy interest & not eligible for publishing to Wikipedia. If a person is notable & in the public eye before transitioning, their former names are then eligible to be listed.
[1] https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Gend... |
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| RIP, Lynn Conway.
For those had a doubt like me, it is different Conway than another computer scientist,John Horton Conway (26 December 1937 – 11 April 2020) famous for "Conway's Game of Life". |
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| Yes you can decide not to mention the politics inherent in the thing but that doesn’t mean it isn’t there. I’m wondering if the person I’m replying to can produce a thing where it truly isn’t there |
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| Anybody who conflates human rights as "politics" are someone I simply cannot respect
A persons right to exist is not political (This isn't a dig at OP but it's worth restating) |
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| The sports claim still deserves a lot of research. People seem to continue to parrot this "impossible" view point but it really doesn't seem to be the reality. Instead organizations get pressured into making choices based on political views rather than data.
For an example of results see https://bjsm.bmj.com/content/58/11/586. A lot of the papers I see trying to support the opposing views try to use data of cis men which have not undergone hormone therapy to stand-in for trans women as if there was no difference but again it's quite apparent that this is not the case. For many other areas, often people will use one incident to collectively label an entire group as deviant. This happened the same way with gay rights over the years and I've got many friends who got labelled all sorts of things because of it. As far as that's concerned, people love to arm-chair what is and isn't an effective course. None of these things are new, just American, or ignoring biological factors but it seems like those who would like to restrict acceptance of transgender people like to paint it as such. Many of my friends have taught me a lot just by being bold enough to be seen as themselves. I don't think it's actually unreasonable to extend the benefit of the doubt to how trans people choose to affirm themselves. |
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| > probably more down to food access and/or training disparities than actual “significant” biological factors.
I'm not really going to defend the other side here because sports are (by definition) fundamentally arbitrary, but is this really borne out by reality? To use an easy comparison, elite adult womens' track and field athletes might be competitive against high school boys, but not at any higher level. Compare, for example, the international womens' records [0] to the records from this random high school nationals track meet [1]. What food access and/or training advantage are high school kids going to have over the most capable athletes in their sport? [0] https://trackandfieldnews.com/records/womens-world-records/ |
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| https://en.wikipedia.org/wiki/WP:DEADNAME says:
> If a living transgender or non-binary person was not notable under a former name (a deadname), it should not be included in any page (including lists, redirects, disambiguation pages, category names, templates, etc.), even in quotations, even if reliable sourcing exists. Treat the pre-notability name as a privacy interest separate from (and often greater than) the person's current name. So, now she has passed away, it is allowed by policy to add her birth name to the article (assuming it can be reliably sourced, etc) Although https://en.wikipedia.org/wiki/WP:BDP also says: > Generally, this policy does not apply to material concerning people who are confirmed dead by reliable sources. The only exception would be for people who have recently died, in which case the policy can extend for an indeterminate period beyond the date of death—six months, one year, two years at the outside. So some might argue that, due to WP:BDP, WP:DEADNAME still applies in the period immediately after her death – but in 2027 it won't (assuming Wikipedia leaves its policies unchanged) |
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| she had to go to significant pains to conceal her former name because it revealed her former sex, and trans women are at significant risk of getting lynched, even more so 50 years ago |
RIP
[ref] https://youtu.be/W_cB8VYunY8?si=9M9QVmBipbKUXxMR&t=1414