Error running concurrent process and storing results in array

[WebFreak001]

On Wednesday, 6 May 2020 at 07:42:44 UTC, data pulverizer wrote:
> On Wednesday, 6 May 2020 at 07:27:19 UTC, data pulverizer wrote:
>> On Wednesday, 6 May 2020 at 06:54:07 UTC, drug wrote:
>>> Thing are really interesting. So there is a space to improve 
>>> performance in 2.5 times :-)
>>> Yes, `array` is smart enough and if you call it on another 
>>> array it is no op.
>>> What means `--fast` in Chapel? Do you try `--fast-math` in 
>>> ldc? Don't know if 05 use this flag
>>
>> I tried `--fast-math` in ldc but it didn't make any difference 
>> the documentation of `--fast` in Chapel says "Disable checks; 
>> optimize/specialize".
>
> Just tried removing the boundscheck and got 1.5 seconds in D!

Cool! But before getting too excited I would recommend you to 
also run tests if the resulting data is even still correct before 
you keep this in if you haven't done this already!

If you feel like it, I would recommend you to write up some small 
blog article what you learned about how to improve performance of 
hot code like this. Maybe simply write a post on reddit or make a 
full blog or something.

Ultimately: all the smart suggestions in here should probably be 
aggregated. More benchmarks and more blog articles always help 
the discoverability then.