sb Comments - Answer Overflow

Topics

sb

•Created by Noam Y on 12/10/2024 in #questions

When can we expect gpu kernels in mojo?

Hi @Noam Y, no exact release date has been specified. We think an announcement (that is on the calendar) within the next couple weeks is for GPU, but can't say for sure.

4 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

And a bench that relies on compilers recognizing different levels of the 99.99+% of work it's doing can be thrown away feels disingenuous in that light

67 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

My worry is that people are, since I've seen this particular bench making the rounds in a bunch of places without much critical discourse

67 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

The reason I brought it up was that it's like judging the critical thinking skills of a person based on a single answer they give to a question on Jeopardy--it's a scenario that has some very specific "step" tricks that don't necessarily generalize well and aren't really representative of the overall in-practice effectiveness of the compilers/interpreters tested. That algo from above is just an extreme example to show that.

67 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

Compilers can, and do, do algorithmic transformations fwiw. A lot of the "magic" of compilers is just matching on idioms/patterns and doing templated replacement

67 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

I should close some tabs, it might have been swapping while it was running 😬 /s

67 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

it's a modulo so we're just integrating across a sawtooth fn :)

67 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

(yes this is operationally equivalent, it is also why we haven't tried opening a PR because it sorta mocks the benchmark itself)

67 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

(also this is on m1, so may be slow for them)

67 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

No description

67 replies

•Created by Tyler Hillery on 12/4/2024 in #questions

1 Billion nested loop iterations Mojo Implementation - seeking feedback

@Owen Hilyard has one, some updates:

import random
from sys import argv

fn inner(u: Int32) -> Int32:
  var jb: Int32 = 100000
  var full_iterations = jb / u
  var full_iteration_sum = u * (u+1) / 2
  var remaining_iterations = jb - (jb / u)
  var partial_iteration_sum = remaining_iterations * (remaining_iterations+1) / 2
  return (full_iterations * full_iteration_sum) + partial_iteration_sum

fn main() raises:
    var u: Int32 = Int32(int(argv()[1]))
    var r: Int32 = random.random_si64(0, 10000).cast[DType.int32]()
    var loop_value = inner(u) + r
    print(loop_value)

import random
from sys import argv

fn inner(u: Int32) -> Int32:
  var jb: Int32 = 100000
  var full_iterations = jb / u
  var full_iteration_sum = u * (u+1) / 2
  var remaining_iterations = jb - (jb / u)
  var partial_iteration_sum = remaining_iterations * (remaining_iterations+1) / 2
  return (full_iterations * full_iteration_sum) + partial_iteration_sum

fn main() raises:
    var u: Int32 = Int32(int(argv()[1]))
    var r: Int32 = random.random_si64(0, 10000).cast[DType.int32]()
    var loop_value = inner(u) + r
    print(loop_value)

67 replies

•Created by Khebabchi | خبابشي on 11/24/2024 in #questions

does mojo have access modifiers

mood, on both

87 replies

•Created by Khebabchi | خبابشي on 11/24/2024 in #questions

does mojo have access modifiers

I get bonked with "YAGNI" with frequency at work from having that impulse too

87 replies

•Created by Khebabchi | خبابشي on 11/24/2024 in #questions

does mojo have access modifiers

Eh, dev time isn't free, and often silicon (even unused) is "cheaper"

87 replies

•Created by Khebabchi | خبابشي on 11/24/2024 in #questions

does mojo have access modifiers

the former can enable the latter, IME

87 replies

•Created by Khebabchi | خبابشي on 11/24/2024 in #questions

does mojo have access modifiers

Proper encapsulation was a hard-fought win that came out of not being able to wrangle discipline out of people writing assembly, C, Fortran, etc Scripting/interpreted languages were initially seen as "glue" code where your codebases wouldn't really get large enough for it to be necessary, but especially with Mojo I don't think we can assume codebases+deps will stay "tiny" any more than we could rightly assume that about Python

87 replies

•Created by Khebabchi | خبابشي on 11/24/2024 in #questions

does mojo have access modifiers

I've also seen some horrible sins committed in C along similar tracks

87 replies

•Created by Khebabchi | خبابشي on 11/24/2024 in #questions

does mojo have access modifiers

I speak of two ends of the spectrum: Python (prior job, plus aforementioned DTS) Hand written assembly (current job)

87 replies

•Created by Khebabchi | خبابشي on 11/24/2024 in #questions

does mojo have access modifiers

@Owen Hilyard I feel like you probably have seen similar in DTS?

87 replies

•Created by Khebabchi | خبابشي on 11/24/2024 in #questions

does mojo have access modifiers

This might just be a result of different experiences, but access modifiers would have prevented some horrible abuses I've seen in codebases over my current and previous job

87 replies