In the code below, there is an allocation each time the statement u[i1:i1+1].=... is executed. A few years ago, I wrote a quick-and-dirty macro to implement statements like this with a for-loop like the commented-out loop in the code below. I suppose now there is a standard macro that implements th…

[image] Stephen_Vavasis: @views u[i1 : i1 + 1] .= u[i1 : i1 + 1]... I think what allocates there are the slices on the right side.

Avoiding allocations in small subvector ops

lmiq October 9, 2022, 11:41pm 2

I think what allocates there are the slices on the right side.

2 Likes

Topic		Replies	Views
Assign vector to slices and allocation Performance memory-allocation	7	1092	November 23, 2020
Is there a way to guarantee 0 allocations when accessing an array? General Usage	18	4376	June 1, 2017
Allocation of new variables vs modification of existing variables New to Julia	11	2317	January 12, 2017
Why these two functions have different allocations? General Usage	11	465	July 13, 2021
Assistance in avoiding allocations in summations Performance	8	842	March 18, 2019