𞋴𝛂𝛋𝛆

  • 94 Posts
  • 414 Comments
Joined 2 years ago
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Cake day: June 9th, 2023

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  • Need max AVX instructions. Anything with P/E cores is junk. Only enterprise P cores have the max AVX instructions. When P/E are mixed the advanced AVX is disabled in microcode because the CPU scheduler is unable to determine if a process thread contains an AVX instruction and there is no asymmetrical scheduler that handles this. Prior to early 12k series Intel, the microcode for P enterprise could allegedly run if swapped manually. This was “fused off” to prevent it, probably because Linux could easily be adapted to asymmetrical scheduling but Windows would probably not. The whole reason W11 had to be made was because of the E-cores and the way the scheduler and spin up of idol cores works, at least according to someone on Linux Plumbers for the CPU scheduler ~2020. There are already asymmetric schedulers in Android ARM.

    Anyways I think it was on Gamer’s Nexus in the last week or two that Intel was doing some all P core consumer stuff. I’d look at that. According to chips and cheese, the primary CPU bottleneck for tensors is the bus width and clock management of the L2 to L1 cache.

    I do alright with my laptop, but haven’t tried R1 stuff yet. The 70B llama2 stuff that I ran was untenable for CPU only with a 12700 with just CPU. It is a little slower than my reading pace when split with a 16 GB GPU, and that was running a 4 bit quantization version.







  • It is just a wire and connector. That isn’t Prusa. If it was a bambu you would be buying a new printer without an upgrade path, and since a new printer came out, your old suddenly stops working right like some Apple product. Believe it or not, bambu printers have connectors, likely from the same global supplier too.

    The quick fix is to remove the connector from both sides, yes the female too. Then solder the connection directly. You can add some hot glue for strain relief. You’ll still likely have the other side of the connector. If not, who cares, “it just works.”

    I know it is a pain, and irritating, Prusa wiring is probably the weakest link. I redid pretty much every wire to make them exactly to length and routed properly when building my MK3 because it bugged me.

    I would not try to crimp a new terminal properly given your admission of mechanical ability. Getting a good crimp with a small connector is tricky without experience. It would be easier to order the same connector wire precrimped and replace the end of the wire. Then do a splice a few inches higher. Or just order the parts.

    If you need to replace a pin on the PCB, it MUST be done carefully or you’ll lift a trace. It is a job that should be done with a full soldering station. However I could do it with a candle and a nail in a zombie apocalypse. The trick is in only barely heating the pin enough to melt the solder completely. That requires a soldering iron tip with as much heat mass as possible so that you do not need too much heat to compensate for the temp drop upon contact. If none of this makes sense, just buy the replacement parts.

    Sorry for the bad day, seriously.


  • I find it highly offensive when anyone tells me what I think or believe. You have no right to speak in my voice or write my narrative.

    I love to debate. I love to learn and take in new information and perspectives. To assume is to make an ass-u-me. Do not assume you know me at all unless you have asked questions and are quoting or paraphrasing my statements in the context I made them.

    I am not in any way resistant to negative feedback. I want to engage with people that are open minded and flexible in their thinking. Those that have a rigid mindset and parrot some narrative on the right or left are religious fools I waste no time with. Arguing belief systems is a fool’s folly.

    I take offense at anonymizing negative feedback. This is not accepted or normal human behavior. It is the realm of criminals and cowards to stab people in the back without the opportunity to confront their assailant. I do not accept this criminality as normal. If you wish to have a counter opinion you must do so openly and debate and defend your opinion. Anything less is barbaric primitivism.


  • I’m physically disabled and nearly a total shut in. This is my only real outside human contact. It is not really healthy largely because of this psychotic negativity. There are many aspects of Maslow’s hierarchy that are beyond my control to remedy and solve. This place could help with some of that. When it fails for fundamentally unnecessary reasons of amplifying a tiny minority, I try to call attention to it. Some instance admins have already mentioned it is due to a half dozen people. I’m actively trying to show that those half dozen people are having a negative impact on more than just comments in a tangible way that promotes their removal.






  • The deeper I get into a subject involving engineering, the less I can relate what I know effectively. If I’ve done the thing many times, I can talk about it more freely.

    It boils down to, “I don’t know what I don’t know.” The only thing I can do is explain the long path of stuff I’ve figured out in order to get where I am at in my understanding. I don’t have a clear overview scope. I’m aware I have likely made mistakes even within what I know.

    If you are asking me for official statements that can come back to me, I’m going to be extremely cautious in what I tell you and only speak about things I am absolutely sure of and have triple checked. Most of what I’m sure of is going to be unhelpful surface level information. Professionally, telling you anything that could be wrong is career suicide. Reputation is the currency of an engineering career.




  • California is not touristy like many other places around the USA. There are areas like around Disneyland that are more tourist oriented, but even around Anaheim, you will not find high budget tourist restaurants or resorts outside of Disney's property. Disney World in Florida is the large scale experience, but that is super expensive and I'm jaded from childhood versus the reality of experience.

    Generally speaking, Southern California is probably a little less of a culture shock to a European versus anywhere in the continental interior of the USA. I imagine rural backwardness is a fairly universal human experience anywhere around the world.

    I believe you will find that the lack of land use zoning reform and management of home ownership is a universally Western problem common to Europe and the USA. None of us have the legislation that enables young family ownership with the excess income required for a below average person to start a family. The larger the population is, the larger the issue becomes. In truth there is a caveat. The key issue is the change in population migration. The more people that move to an area, while there are no land reforms to control the supply and cost of housing, the larger the cost of living and the larger the number of people struggling at the bottom. In California, housing prices are ridiculous and so is the cost of living. Everyone struggles in fairly similar ways at the bottom of the economy in every place.

    In Deutschland you have a far more egalitarian set of protections and rights. The government of the USA has been stagnant for the average person’s rights and protections since around the 1970’s. The USA has around 1/10th the laws and protections of the leading European countries. The USA is very much a failing democracy in really bad shape where we are quite powerless to change it as citizens. Participation at the level required for change is far more consuming than the time available for the average person. Even when participating, one must deal with an extremely corrupt system of gerrymandering and antiquated representative disconnections that obscure accountability and participation.

    Outside of the social issues, all the images you see of beaches in Southern California are fake. All the sand is basically from Australia and elsewhere. The water off the coast of Los Angeles is very deep unlike places like Florida where all beaches are sandy, and the water is warm because it is shallow for a great distance off shore and supports things like coral and more plant life that retains and helps generate more sand.

    The while Southern California beaches thing is an oddity. For most of the year it stays too cool for swimming in a speedo or bikini. The water is usually cold too. Most people that surf, use a spring wetsuit almost all year. There are a half dozen times when the weather changes and the winds blow really hot air from the desert into the area. This is when the real California beach culture happens like you see in movies or TV. It is not a year round thing or central to the culture or touristy. Most California coastline is lined with residential housing, not resorts. Other than the ocean front homes, just inland is regular housing with average cost. Even the ocean front homes are mostly regular homes that just cost more for the view. These front line homes are usually on top of a cliff around 30 meters above the beach. There are still some spots with homes at ocean level, but these are like 20:80 ratio at this point. There used to be more homes on the beach but deep water just a few meters offshore has caused most of these to get demolished eventually due to erosion.

    Hollywood is a joke, and not worth a second thought. There is no destination to see anything remarkable. Hollywood does not have a monumental heritage like destination. The studios are walled off large industrial building sites. The sidewalk of the stars is down an old street in a rough neighborhood. Beverly Hills is nearby and just a rich neighborhood. Downtown Los Angeles is a pitiful excuse for a downtown and one of the most disappointing in the country. San Fransisco, or even San Diego are more impressive for nightlife and a real downtown.

    The thing to keep in mind is that the cost of living in any area is not random or by chance. It is always directly related to the employment opportunities in the area. Los Angeles is not the place to come visit, it is the place to move to. It is one of the only places in the USA with a more egalitarian focus where people dominate slightly more than the ultra rich.

    If you go somewhere like Florida, the entire coastal economy is centered around tourism. In California, you have to know where to go to find tourism and these are little walled garden like islands in places Californians would like to get rid of entirely.


  • Yes. I very much felt like this. In many ways I have done it by moving from Alabama to California. These are as different as a foreign country and culture. It does not live up to the fantasy. There are good and bad aspects. The bad that you cannot put in perspective effectively until midlife is the value of your social network connections at this phase in your life. Making as many friends as you can and staying in touch is really critical where you’re at in life right now. Those people are your career paths, partners, and key supporters later. The desire to leave and explore is undervaluing this connections in regrettable ways later in life. Weight this change against your introversion versus extroversion. If you are very introverted, you will struggle to build a sufficient support network in the absence of those you grew up with. Age, for most people, is accompanied by ever increasing loneliness in ways that are hard to fathom in youth. It is not just motivations and desire to interact with others. It is also your own increasing complexity, interests, and finding compatible people that also have the space in life for you and the motivation to put forth the effort. Life evolves in phases where you cannot go back and redo mistakes made.




  • It is an abstraction. It means whatever you need or want it to mean in a given moment. I would do a thing like this while thinking of my loved ones that may be visiting; to make them think; to give them a figurative hand on the shoulder; a meaningless aphorism of solidarity and human empathy. It may be of no value to a person that struggles with abstraction, or even my younger self that struggled to contextualize my own. I have learned to value the little things, especially the few people with a genuine capacity to care about others. This message was likely a reaching attempt at such a caring kindness of compassion and love.