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@junpi3 junpi3 commented Apr 5, 2024

Stack from ghstack (oldest at bottom):

The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

Idea

In our shaders, we add the bias to our sum.

${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);

To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

Issue

If Bias=False, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as TypeTag::NONE, not TypeTag::TENSORREF.

Solution

If TypeTag::NONE is given, (1) create the vTensor using the out_channels value from the weights and (2) allocate a StagingBuffer of that size. The StagingBuffer will be transferred to GPU memory and initialized to zeros.

Differential Revision: D55814589

The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

## Idea
In our shaders, we add the bias to our sum.
```
${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);
```
To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

## Issue
If `Bias=False`, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as `TypeTag::NONE`, not `TypeTag::TENSORREF`.

## Solution
If `TypeTag::NONE` is given, (1) create the `vTensor` using the `out_channels` value from the weights and (2) allocate a StagingBuffer of that size. The StagingBuffer will be transferred to GPU memory and initialized to zeros.

Differential Revision: [D55814589](https://our.internmc.facebook.com/intern/diff/D55814589/)

[ghstack-poisoned]
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pytorch-bot bot commented Apr 5, 2024

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@facebook-github-bot facebook-github-bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Apr 5, 2024
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This pull request was exported from Phabricator. Differential Revision: D55814589

junpi3 pushed a commit that referenced this pull request Apr 5, 2024
The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

## Idea
In our shaders, we add the bias to our sum.
```
${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);
```
To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

## Issue
If `Bias=False`, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as `TypeTag::NONE`, not `TypeTag::TENSORREF`.

## Solution
If `TypeTag::NONE` is given, (1) create the `vTensor` using the `out_channels` value from the weights and (2) allocate a StagingBuffer of that size. The StagingBuffer will be transferred to GPU memory and initialized to zeros.

Differential Revision: [D55814589](https://our.internmc.facebook.com/intern/diff/D55814589/)

ghstack-source-id: 221526247
Pull Request resolved: #2887
@junpi3 junpi3 mentioned this pull request Apr 5, 2024
The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

## Idea
In our shaders, we add the bias to our sum.
```
${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);
```
To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

## Issue
If `Bias=False`, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as `TypeTag::NONE`, not `TypeTag::TENSORREF`.

## Solution
If `TypeTag::NONE` is given, (1) create the `vTensor` using the `out_channels` value from the weights and (2) allocate a StagingBuffer of that size. The StagingBuffer will be transferred to GPU memory and initialized to zeros.

Differential Revision: [D55814589](https://our.internmc.facebook.com/intern/diff/D55814589/)

[ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D55814589

The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

## Idea
In our shaders, we add the bias to our sum.
```
${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);
```
To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

## Issue
If `Bias=False`, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as `TypeTag::NONE`, not `TypeTag::TENSORREF`.

## Solution
If `TypeTag::NONE` is given, (1) create the `vTensor` using the `out_channels` value from the weights and (2) allocate a StagingBuffer of that size. The StagingBuffer will be transferred to GPU memory and initialized to zeros.

Differential Revision: [D55814589](https://our.internmc.facebook.com/intern/diff/D55814589/)

[ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D55814589

junpi3 pushed a commit that referenced this pull request Apr 8, 2024
Pull Request resolved: #2887

The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

## Idea
In our shaders, we add the bias to our sum.
```
${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);
```
To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

## Issue
If `Bias=False`, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as `TypeTag::NONE`, not `TypeTag::TENSORREF`.

## Solution
If `TypeTag::NONE` is given, (1) create the `vTensor` using the `out_channels` value from the weights, (2) allocate a StagingBuffer of that size, and (3) `memset` its data to zero. Failure to do (3) will result in undefined behavior.

ghstack-source-id: 221721748
@exported-using-ghexport

Differential Revision: [D55814589](https://our.internmc.facebook.com/intern/diff/D55814589/)
The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

## Idea
In our shaders, we add the bias to our sum.
```
${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);
```
To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

## Issue
If `Bias=False`, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as `TypeTag::NONE`, not `TypeTag::TENSORREF`.

## Solution
If `TypeTag::NONE` is given, (1) create the `vTensor` using the `out_channels` value from the weights and (2) allocate a StagingBuffer of that size. The StagingBuffer will be transferred to GPU memory and initialized to zeros.

Differential Revision: [D55814589](https://our.internmc.facebook.com/intern/diff/D55814589/)

[ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D55814589

The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

## Idea
In our shaders, we add the bias to our sum.
```
${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);
```
To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

## Issue
If `Bias=False`, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as `TypeTag::NONE`, not `TypeTag::TENSORREF`.

## Solution
If `TypeTag::NONE` is given, (1) create the `vTensor` using the `out_channels` value from the weights and (2) allocate a StagingBuffer of that size. The StagingBuffer will be transferred to GPU memory and initialized to zeros.

Differential Revision: [D55814589](https://our.internmc.facebook.com/intern/diff/D55814589/)

[ghstack-poisoned]
@facebook-github-bot
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This pull request was exported from Phabricator. Differential Revision: D55814589

The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

## Idea
In our shaders, we add the bias to our sum.
```
${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);
```
To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

## Issue
If `Bias=False`, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as `TypeTag::NONE`, not `TypeTag::TENSORREF`.

## Solution
If `TypeTag::NONE` is given, (1) create the `vTensor` using the `out_channels` value from the weights and (2) allocate a StagingBuffer of that size. The StagingBuffer will be transferred to GPU memory and initialized to zeros.

Differential Revision: [D55814589](https://our.internmc.facebook.com/intern/diff/D55814589/)

[ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D55814589

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This pull request has been merged in 8aaf2c5.

@mergennachin mergennachin mentioned this pull request Apr 26, 2024
kedarnath03 pushed a commit to kedarnath03/executorch that referenced this pull request Jun 25, 2025
Pull Request resolved: pytorch/executorch#2887

The final touches to get ET-VK convolution on-par with ATen-VK's convolution.

## Idea
In our shaders, we add the bias to our sum.
```
${VEC4_T[DTYPE]} sum = texelFetch(bias_in, ivec2(pos.z, 0), 0);
```
To keep our shaders as is, we implement having no bias by allocating a buffer of zeros. Then, our shader adds zero to our sum.

## Issue
If `Bias=False`, dummy buffer of zeros is not serialized with the graph. The bias ValueRef is deserialized in the runtime as `TypeTag::NONE`, not `TypeTag::TENSORREF`.

## Solution
If `TypeTag::NONE` is given, (1) create the `vTensor` using the `out_channels` value from the weights, (2) allocate a StagingBuffer of that size, and (3) `memset` its data to zero. Failure to do (3) will result in undefined behavior.

ghstack-source-id: 221926167
@exported-using-ghexport

Differential Revision: [D55814589](https://our.internmc.facebook.com/intern/diff/D55814589/)
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