Faster Sorting With GPU?

foobar_lv2 · January 17, 2018, 1:57pm

Ok, that’s much cleaner than my SVector variant. Forget my code and use this if you can live with the transposed memory layout.

judsoncs · January 17, 2018, 5:14pm

But could I use multiple keys with that method?

simonbyrne · January 17, 2018, 6:46pm

You can use the by or lt options to specify the sorting criteria, e.g.

sort(Atup; alg=QuickSort, by=x->(x[3],x[1],x[2]))

will sort by the 3rd column, the 1st column, then the 2nd column (since tuples are compared by lexicographic order of the elements)

judsoncs · January 17, 2018, 7:44pm

I’ve used that format for the sortrows function but it doesn’t seem to work with the sort function.

simonbyrne · January 17, 2018, 7:51pm

what format? It worked using @sdanisch’s example.

judsoncs · January 17, 2018, 9:00pm

Ok yeah you’re right, it works. Sorry!