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[onert] Add lifetime enum to LayerScopeTensor #13861

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merged 1 commit into from
Sep 2, 2024

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zetwhite
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@zetwhite zetwhite commented Aug 30, 2024

This PR adds lifetime info to the LayerScopeTensor. Lifetime info will be used to plan and allocate buffer for LayerScopeTensor.

ONE-DCO-1.0-Signed-off-by: seunghui youn sseung.youn@samsung.com

related : #13282
draft : #13486

Comment on lines +29 to +33
enum class LayerScopeTensorLifeTime : unsigned char
{
BACKWARD, // alive during backward()
FORWARD_TO_BACKWARD, // alive from forward() to backward()
};
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Lifetime info will be used to plan and allocate a buffer for LayerScopeTensor.

@zetwhite zetwhite added the PR/ready for review It is ready to review. Please review it. label Aug 30, 2024
This PR adds lifetime info to the LayerScopeTensor.
Lifetime info will be used to plan and allocate buffer for LayerScopeTensor.

ONE-DCO-1.0-Signed-off-by: seunghui youn <sseung.youn@samsung.com>
@zetwhite zetwhite changed the title [onert] Add Lifetime to LayerScopeTensor [onert] Add lifetime enum to LayerScopeTensor Aug 30, 2024
@zetwhite zetwhite requested a review from a team August 30, 2024 08:50
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@ragmani ragmani left a comment

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LGTM

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@hseok-oh hseok-oh left a comment

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LGTM

@hseok-oh hseok-oh merged commit ae411be into Samsung:master Sep 2, 2024
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@@ -26,6 +26,12 @@ namespace backend
namespace train
{

enum class LayerScopeTensorLifeTime : unsigned char
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(out of my curiosity)
Why do you set a type for this enumaration class? What is the advantages?

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@jyoungyun

AFAIK, if we didn't set a type(enum-base) for enum class, the enum element takes 4 bytes by default.
In this case, I'd like to reduce the size of enum element. (default : 4bytes -> unsigned char 1bytes)

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4 participants