Add realize after pointwise lowering

[Chillee]

Stack from ghstack (oldest at bottom):

• Add memory_budget prototype to checkpoint #123335
• -> Add realize after pointwise lowering #124118

cc @voznesenskym @penguinwu @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @peterbell10 @ipiszy @yf225 @chenyang78 @kadeng @muchulee8 @aakhundov @ColinPeppler @amjames @desertfire @chauhang

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/124118

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❌ 1 New Failure, 3 Unrelated Failures

As of commit 369af75 with merge base 5785b02 ():

NEW FAILURE - The following job has failed:

• .github/workflows/inductor.yml (gh)

FLAKY - The following job failed but was likely due to flakiness present on trunk:

• pull / linux-focal-py3.12-clang10 / test (default, 3, 3, linux.2xlarge) (gh)
  RuntimeError: profiler/test_profiler 1/1 failed

BROKEN TRUNK - The following jobs failed but was present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / linux-focal-py3.11-clang10 / test (default, 2, 3, linux.2xlarge) (gh)
  RuntimeError: profiler/test_profiler 1/1 failed
• pull / linux-focal-py3.12-clang10 / test (dynamo, 3, 3, linux.2xlarge) (gh)
  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! KeyboardInterrupt !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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