provide an option to not using sdpa

[cccclai]

Differential Revision: D55647765

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❌ 1 New Failure

As of commit e51ef16 with merge base d612c23 ():

NEW FAILURE - The following job has failed:

• Lint / lintrunner / linux-job (gh)
  >>> Lint for examples/portable/utils.py:

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This pull request was exported from Phabricator. Differential Revision: D55647765

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[github-actions]

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[github-actions]

Looks like this PR hasn't been updated in a while so we're going to go ahead and mark this as Stale.
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