lamchob's comments

lamchob | 2 years ago | on: Hidet: A Deep Learning Compiler for Efficient Model Serving

If you read into the paper (https://dl.acm.org/doi/10.1145/3575693.3575702), one can find more performance comparisons. There, from a latency/throughput PoV they are en par with existing tools like TVM/Ansor. Sometimes faster, sometimes slower.

What is more interesting is this: They have very GPU-specific auto-tuning routine that drastically reduces the optimzation space, compared to TVM/Ansor. They go from ~10^6 possible implementations for an operator to a "few hundred", which enabled much faster time-to-solution. This is achieved with a GPU-centric problem formulation and search space. In essence, they trade how widely applicable their approach is (from "any" kind of hardware to only GPU-style architectures) for retrieval speed.

lamchob | 3 years ago | on: Ask HN: What's something you purchased impulsively just because you wanted it?

Last year, a Buell XB12R Firebolt. An exotic, American sport bike with a radical design and engineering philosophy. I knew they existed, but never paid much attention. Then a distant friend sold his bike. I took a test ride, just for the fun of it, because they are quite rare.

On the ride home I already had made the downpayment with the intent to pick up the bike the next day. One the best decisions I ever made!

lamchob | 3 years ago | on: Deep learning for twelve hour precipitation forecasts

This reminds me of a movie, the name of which I can’t remember.

> A family father gets premonitions about a massive storm that will come, which triggers him building a bunker in his back yard. It is a family drama on how his obsession with protecting his family slowly tears it apart. In the end they convince the father to go on vacation for a few days, just to get away from the obsession. As they arrive in their vacation home, a huge, black storm cloud rolls in on the horizon

Great Movie, recommend watching it.

lamchob | 3 years ago | on: PhD training is no longer fit for purpose – it needs reform now

The question is, do we really need a PhD reform? Or should we restructure the academic process to enable more people to pariticipate without going through the ardous process of writing a thesis? I have a PhD and work in an industrial research environment, with 50/50 PhD and non-PhD colleagues. There is no difference in quality of work and output. So maybe universities should be less discriminatory against non-PhD research fellows.

lamchob | 3 years ago | on: Ask HN: Son is major in CS, but doesn't code. Red flag?

Because there is an inevitable translation step between "customer wants X" and "engineers have to build Y to achieve X". This takes time and is a non-trivial task. I'm an engineer myself and I'm glad there are people between me and the customers. They're there to shield engineers from unnecessary tasks and scope creep. They are the necessary abstraction layer between engineering and business.

lamchob | 3 years ago | on: Walker’s Manly Exercises

The wikipedia article is pure gold!

> The Bailey Ball was an Alpine Center attraction developed and tested, but never opened to the public, as a result of those tests. It consisted of a large foam sphere in which a rider could be secured, and then rolled downward. The plan was to do it on a track with PVC pipe as its outer rails, and one was built alongside a ski trail.[11]: 16:25

> The designers neglected to take into account the tendency of PVC pipe to expand in heat. During the first test, with a state inspector present on a hot summer day, the ball, with a man inside testing it, went off the track as a result of the pipe expanding and bounded down the adjacent ski slope. It continued through the parking lot, across Route 94, and came to rest in a swamp. After it came to a natural stop at the bottom, the inspector left without saying anything and park management abandoned the project.[11]: 16:25 [43]

lamchob | 3 years ago | on: Ask HN: What are your goals for 2023?

- be a better husband. I came off as selfish and inattentive in recent months. This needs to change.

- Spend more time with my family.

- Find a way to better engage with my town and community. I grew up where I live now, but still feel a little disconnected.

- Continue reading. Started reading again, this year. Want to keep up with that.

- Join the 1000lbs club. This is the follow up to this year’s goal of a 135 overhead / 225 Bench / 315 Squat / 405 DL

- finally finish my PhD. Still waiting for my Advisor to finish his report…

- relax more, stress less about income

lamchob | 4 years ago | on: Ask HN: Favorite Coffee Mug?

The wife and I started collecting cups and mugs whenever we travel. No touristy I<3 NYC, but if we run into a nice mug, we take it back home. Whenever you grab a coffee or tea, a little memory is there with it.

lamchob | 4 years ago | on: Send+more=money and how to use forward-checking in search

The general method presented here is Constraint Programming (CP), a sibling of SAT and ILP. In CP, you can formulate constraints over variables. Search is then performed branch-n-bound style. A variable is assigned, then constraints check if the assignment is legal and remove non-solutions from the other variable's domains.

If anyone is interested: An accessible python module for this is python-constraint. Gecode is a powerful, modern C++ CP Framework.

lamchob | 5 years ago | on: Ask HN: How much of a success/failure has your love life been?

Maybe I falls out of line here, but I met the love of my live in 11th grade. We got married this September, at our 12th anniversary. There is no secret, just the will to commit to the relationship, mutual support and talking about issues when they arise.

lamchob | 5 years ago | on: Ask HN: What are up-to-date methods for software development?

I want to second this this method. It also works great in a research setting. There, the cool down also allows reflection on the past few week to update expectations and goals for next cycle. While not following this method strictly, I've been cycling through my work like this for past 12 months.
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