samufi Comments - Answer Overflow

samufi

•Created by samufi on 9/21/2024 in #questions

How can I use a fixed-size integer type to index a list?

I was not sure if the int is a function call (introducing some overhead, maybe copying of values). If it is really equivalent to a "reinterpret cast" in C++, then this is awesome. I do not yet have a feel for what is going on under the hood in mojo.

7 replies

MModular

•Created by samufi on 9/21/2024 in #questions

How can I use a fixed-size integer type to index a list?

Thanks. I noticed I need to use the lower case int function. I have tested different versions and was not able to measure a significant performance penalty.

7 replies

MModular

•Created by samufi on 8/2/2024 in #questions

How can I write asynchronous code?

Thanks, this is very helpful!

11 replies

MModular

•Created by samufi on 8/2/2024 in #questions

How can I write asynchronous code?

Hmmm, it still looks not asynchroneous...

async fn get_time() -> Float64:
    var time = now() * 1e-9
    sleep(1)
    return time

fn call_it():
    var a = get_time()
    var b = get_time()

    print(await a^)
    print(await b^)

async fn get_time() -> Float64:
    var time = now() * 1e-9
    sleep(1)
    return time

fn call_it():
    var a = get_time()
    var b = get_time()

    print(await a^)
    print(await b^)

If we call call_it, we get

6916.1215625790001 6917.1220518390001

So the functions are not executed in parallel. It seems as if it is waited until await is called. So what am I doing wrong? How could I achive asynchonity?

11 replies

MModular

•Created by samufi on 8/2/2024 in #questions

How can I write asynchronous code?

I was pointed to the answer in a different channel. I need to "delete" the coroutine when waiting for it.

async fn add_three(a: Int, b: Int, c: Int) -> Int:
    return a + b + c

async fn call_it():
    var task = add_three(1, 2, 3)
    print(await task^)

async fn add_three(a: Int, b: Int, c: Int) -> Int:
    return a + b + c

async fn call_it():
    var task = add_three(1, 2, 3)
    print(await task^)

11 replies

MModular

•Created by samufi on 8/2/2024 in #questions

How can I write asynchronous code?

Or am I simply doing it wrong? (Anyone here who has used async in mojo??)

11 replies

MModular

•Created by samufi on 8/2/2024 in #questions

How can I write asynchronous code?

Any updates on this yet @Ehsan M. Kermani ? The issue is still there in the current nightly.

11 replies

MModular

•Created by samufi on 8/5/2024 in #questions

Is there a (N-D) contiguous data structure for non-trivial structs?

Then the only remaining question would be which container provides inline-vector-like functionality but can hold tuples and implements CollectionElement

6 replies

MModular

•Created by samufi on 8/5/2024 in #questions

Is there a (N-D) contiguous data structure for non-trivial structs?

Yes, I think in principle, List is not too bad for the "outer" array (except that I need to wrap it into a 2D structure around for simple access). I guess this is the easiest approach if no one else has done the work so far...

6 replies

MModular

•Created by samufi on 8/5/2024 in #questions

Is there a (N-D) contiguous data structure for non-trivial structs?

Thanks! Hmm... I do not know the size of the outer array at compile time. Is there an alternative with dynamic memory?

6 replies

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