Repository: stable-diffusion-webui
Issue: [Bug]: Cannot reproduce results between platforms.
Labels: bug-report,platform:mac

### Is there an existing issue for this?

- [X] I have searched the existing issues and checked the recent builds/commits

### What happened?

Generated images are inconsistent between two of my machines, even with the same model and the same generation parameters.
![linux-75944430](https://user-images.githubusercontent.com/6416952/215257102-09961e2c-2414-419d-a650-6cbbefb07928.png)
![macos-75944430](https://user-images.githubusercontent.com/6416952/215257107-e55942f9-0aad-4fcc-9a72-609c5d9d7aba.png)


### Steps to reproduce the problem

The same version of `stable-diffusion-webui` is installed on a macOS machine and a Linux machine. The commit hash is `e8a41df49fadd2cf9f23b1f02d75a4947bec5646`.

I deleted the `venv` directory on each machine and let it reinstall again, for a clean install.

Configuration parameters between the machines are identical, including:
 - The seed.
 - The CFG.
 - The number of iterations.
 - The sampling method.
 - The image pixel dimensions.
 - The diffusion model (I confirmed that the model hashes match).
 - The VAE (set to None).

I ran `exiftool` on the two images attached, and here is the output from each.

From the image generated on macOS:
```
$ exiftool macos-75944430.png
ExifTool Version Number         : 12.50
File Name                       : macos-75944430.png
Directory                       : .
File Size                       : 410 kB
File Modification Date/Time     : 2023:01:28 19:56:43+11:00
File Access Date/Time           : 2023:01:28 19:56:45+11:00
File Inode Change Date/Time     : 2023:01:28 19:56:43+11:00
File Permissions                : -rw-r--r--
File Type                       : PNG
File Type Extension             : png
MIME Type                       : image/png
Image Width                     : 512
Image Height                    : 512
Bit Depth                       : 8
Color Type                      : RGB
Compression                     : Deflate/Inflate
Filter                          : Adaptive
Interlace                       : Noninterlaced
Parameters                      : watermelon.Steps: 20, Sampler: Euler a, CFG scale: 7, Seed: 75944430, Size: 512x512, Model hash: dcd690123c, Model: v2-1_768-ema-pruned
Image Size                      : 512x512
Megapixels                      : 0.262
```

From the image generated on linux:
```
$ exiftool linux-75944430.png
ExifTool Version Number         : 12.50
File Name                       : linux-75944430.png
Directory                       : .
File Size                       : 532 kB
File Modification Date/Time     : 2023:01:28 19:56:20+11:00
File Access Date/Time           : 2023:01:28 19:56:22+11:00
File Inode Change Date/Time     : 2023:01:28 19:56:20+11:00
File Permissions                : -rw-r--r--
File Type                       : PNG
File Type Extension             : png
MIME Type                       : image/png
Image Width                     : 512
Image Height                    : 512
Bit Depth                       : 8
Color Type                      : RGB
Compression                     : Deflate/Inflate
Filter                          : Adaptive
Interlace                       : Noninterlaced
Parameters                      : watermelon.Steps: 20, Sampler: Euler a, CFG scale: 7, Seed: 75944430, Size: 512x512, Model hash: dcd690123c, Model: v2-1_768-ema-pruned
Image Size                      : 512x512
Megapixels                      : 0.262
```

This is just one example. In general, the images never match between these machines.

### What should have happened?

The produced images should be identical. Maybe there could be some slight difference due to machine architecture and floating point precision, but by eye it seems like the sampler is doing something different.

### Commit where the problem happens

`e8a41df49fadd2cf9f23b1f02d75a4947bec5646`

### What platforms do you use to access the UI ?

Linux, MacOS

### What browsers do you use to access the UI ?

Apple Safari

### Command Line Arguments

```Shell
Yes.

MacOS: `export COMMANDLINE_ARGS="--opt-split-attention-invokeai --skip-torch-cuda-test --no-half --use-cpu interrogate"`

Linux: `export COMMANDLINE_ARGS="--listen --enable-insecure-extension-access"
```


### List of extensions

Updated extensions to the same version. No difference.

Active extensions:
 - `sd-dynamic-prompts`
 - `shift-attention`
 - `stable-diffusion-webui-sonar`
 - `stable-diffusion-webui-tokenizer`

### Console logs

```Shell
Console log from `macOS`:



################################################################
Install script for stable-diffusion + Web UI
Tested on Debian 11 (Bullseye)
################################################################

################################################################
Running on myuser user
################################################################

################################################################
Repo already cloned, using it as install directory
################################################################

################################################################
Create and activate python venv
################################################################

################################################################
Launching launch.py...
################################################################
==============================================================================
You are running torch 1.12.1.
The program is tested to work with torch 1.13.1.
To reinstall the desired version, run with commandline flag --reinstall-torch.
Beware that this will cause a lot of large files to be downloaded.
==============================================================================
INFO:dynamic_prompting.py:Prompt matrix will create 1 images in a total of 1 batches.
Python 3.10.0 (default, Mar  3 2022, 03:57:21) [Clang 12.0.0 ]
Commit hash: e8a41df49fadd2cf9f23b1f02d75a4947bec5646
Installing requirements for Web UI

Installing sd-dynamic-prompts requirements.txt

Launching Web UI with arguments: --opt-split-attention-invokeai --no-half --use-cpu interrogate
Warning: caught exception 'Torch not compiled with CUDA enabled', memory monitor disabled
No module 'xformers'. Proceeding without it.
Loading weights [dcd690123c] from /Users/myuser/stable-diffusion-webui/models/Stable-diffusion/v2-1_768-ema-pruned.safetensors
Creating model from config: /Users/myuser/stable-diffusion-webui/models/Stable-diffusion/v2-1_768-ema-pruned.yaml
LatentDiffusion: Running in v-prediction mode
DiffusionWrapper has 865.91 M params.
Applying cross attention optimization (InvokeAI).
Textual inversion embeddings loaded(0): 
Model loaded in 13.8s (load weights from disk: 0.1s, create model: 0.3s, apply weights to model: 11.7s, move model to device: 1.5s).
Running on local URL:  http://127.0.0.1:7860

To create a public link, set `share=True` in `launch()`.

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Total progress: 100%|██████████| 20/20 [00:18<00:00,  1.07it/s]/Users/myuser/opt/anaconda3/envs/ml/lib/python3.10/multiprocessing/resource_tracker.py:224: UserWarning: resource_tracker: There appear to be 1 leaked semaphore objects to clean up at shutdown
  warnings.warn('resource_tracker: There appear to be %d '
```

Console log from linux:
```

################################################################
Install script for stable-diffusion + Web UI
Tested on Debian 11 (Bullseye)
################################################################

################################################################
Running on myuser user
################################################################

################################################################
Repo already cloned, using it as install directory
################################################################

################################################################
Create and activate python venv
################################################################

################################################################
Launching launch.py...
################################################################
INFO:dynamic_prompting.py:Prompt matrix will create 1 images in a total of 1 batches.
Python 3.10.9 (main, Dec 19 2022, 17:35:49) [GCC 12.2.0]
Commit hash: e8a41df49fadd2cf9f23b1f02d75a4947bec5646
Installing requirements for Web UI
Installing sd-dynamic-prompts requirements.txt


Launching Web UI with arguments: --listen --enable-insecure-extension-access
No module 'xformers'. Proceeding without it.
Loading weights [dcd690123c] from /home/myuser/stable-diffusion-webui/models/Stable-diffusion/v2-1_768-ema-pruned.safetensors
Creating model from config: /home/myuser/stable-diffusion-webui/models/Stable-diffusion/v2-1_768-ema-pruned.yaml
LatentDiffusion: Running in v-prediction mode
DiffusionWrapper has 865.91 M params.
Applying cross attention optimization (Doggettx).
Textual inversion embeddings loaded(0): 
Model loaded in 2.4s (create model: 0.3s, apply weights to model: 0.7s, apply half(): 0.4s, load VAE: 0.8s, move model to device: 0.3s).
Running on local URL:  http://0.0.0.0:7860

To create a public link, set `share=True` in `launch()`.

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```
```


### Additional information

I have tried several samplers, and always the answer is different between machines.