pytorch

d23d04f1 - Allow nondet_tol for nondeterminism in gradcheck and gradgradcheck (#20980)

Allow nondet_tol for nondeterminism in gradcheck and gradgradcheck (#20980) Summary: gradcheck currently includes a determinism check (although only trying twice and seeing if results match). This can lead to flaky tests, e.g. in #20971, but also #13818. This adds nondet_tol for both gradcheck and gradgradcheck. It does not change / reenable any tests yet. Pull Request resolved: https://github.com/pytorch/pytorch/pull/20980 Differential Revision: D15530129 Pulled By: soumith fbshipit-source-id: 04d7f85b5b59cd62867820c74b064ba14f4fa7f8