Update installer.py to use cu118 instead of 121 (#5069)

## What type of PR is this? (check all applicable)

- [ ] Refactor
- [ ] Feature
- [X] Bug Fix
- [ ] Optimization
- [ ] Documentation Update
- [ ] Community Node Submission


## Have you discussed this change with the InvokeAI team?
- [ ] Yes
- [ ] No, because:

      
## Have you updated all relevant documentation?
- [ ] Yes
- [ ] No


## Description


## Related Tickets & Documents

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## QA Instructions, Screenshots, Recordings

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## Added/updated tests?

- [ ] Yes
- [ ] No : _please replace this line with details on why tests
      have not been included_

## [optional] Are there any post deployment tasks we need to perform?
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Millun Atluri 2023-11-11 10:40:47 +11:00 committed by GitHub
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@ -460,10 +460,10 @@ def get_torch_source() -> (Union[str, None], str):
url = "https://download.pytorch.org/whl/cpu" url = "https://download.pytorch.org/whl/cpu"
if device == "cuda": if device == "cuda":
url = "https://download.pytorch.org/whl/cu121" url = "https://download.pytorch.org/whl/cu118"
optional_modules = "[xformers,onnx-cuda]" optional_modules = "[xformers,onnx-cuda]"
if device == "cuda_and_dml": if device == "cuda_and_dml":
url = "https://download.pytorch.org/whl/cu121" url = "https://download.pytorch.org/whl/cu118"
optional_modules = "[xformers,onnx-directml]" optional_modules = "[xformers,onnx-directml]"
# in all other cases, Torch wheels should be coming from PyPi as of Torch 1.13 # in all other cases, Torch wheels should be coming from PyPi as of Torch 1.13