[Numpy-discussion] in place random generation
Daniel Mahler
dmahler at gmail.com
Thu Mar 8 10:24:16 EST 2007
On 3/8/07, Matthew Brett <matthew.brett at gmail.com> wrote:
> > > My problem is not space, but time.
> > > I am creating a small array over and over,
> > > and this is turning out to be a bottleneck.
>
> How about making one large random number array and taking small views?
>
How is that different from:
++++++++++++++++++++++++++++++++++++++++++++++++++
Allocating all the arrays as one n+1 dim and grabbing rows from it
is faster than allocating the small arrays individually.
I am iterating too many times to allocate everything at once though.
I can just do a nested loop
where create manageably large arrays in the outer
and grab the rows in the inner,
but I wanted something cleaner.
+++++++++++++++++++++++++++++++++++++++++++++++++++
later in the post
> Matthew
Daniel
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