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Re: Accelerating a one-line program doing matrix multiplication [message #72682 is a reply to message #72681]

Mon, 27 September 2010 23:17

Axel Martínez
Messages: 22
Registered: June 2010

Junior Member

On 27 Sep., 15:31, nata <bernat.puigdomen...@gmail.com> wrote:
> You can use the TEMPORARY function if you can set the input to
> undefined...
> When you do [[v1],[v2],[v3]] you are duplicating data. v1, v2 and v3
> are copied and you are not conserving memory.
>
> You could try:
> RETURN, [[TEMPORARY(v1)],[TEMPORARY(v2)],[TEMPORARY(v3)]] # vc +
> REBIN(v0, SIZE(vc, /DIMENSIONS))
>
> Cheers,
> nata

Thanks nata.

v0, v1, v2 and v3 are each of them 3-element vectors. I can add that
but, as I understand it, it will only save the place of 12 floating
values in memory (48 bytes?).

But I am happy that you did not see any other obvious thing. I started
feeling depressed seeing that I am not being able to improve this
single line of code... maybe it is ok, and the whole thing is just
slow...? ahh.

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[Message index]

		Re: Accelerating a one-line program doing matrix multiplication By: Axel Martínez on Wed, 29 September 2010 03:48
		Re: Accelerating a one-line program doing matrix multiplication By: Axel Martínez on Wed, 29 September 2010 03:22
		Re: Accelerating a one-line program doing matrix multiplication By: rogass on Tue, 28 September 2010 23:57
		Re: Accelerating a one-line program doing matrix multiplication By: Jeremy Bailin on Tue, 28 September 2010 08:31
		Re: Accelerating a one-line program doing matrix multiplication By: natha on Tue, 28 September 2010 06:10
		Re: Accelerating a one-line program doing matrix multiplication By: Axel Martínez on Mon, 27 September 2010 23:17
		Re: Accelerating a one-line program doing matrix multiplication By: natha on Mon, 27 September 2010 06:31
		Re: Accelerating a one-line program doing matrix multiplication By: rogass on Wed, 29 September 2010 07:49

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